<?xml version='1.0' encoding='UTF-8' standalone='no'?>
<sbml xmlns="http://www.sbml.org/sbml/level2/version4" level="2" version="4">
  <model id="C3_Aug_2016" metaid="arFramework3" name="Strasen2018 – TGFβ SMAD Signalling Class 3">
    <notes>
      <body xmlns="http://www.w3.org/1999/xhtml">
        <pre>Simulates signaling class 3</pre>
      </body>
    </notes>
    <annotation>
      <COPASI xmlns="http://www.copasi.org/static/sbml">
        <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
          <rdf:Description rdf:about="#arFramework3">
            <dcterms:created>
              <rdf:Description>
                <dcterms:W3CDTF>2017-09-07T16:51:33Z</dcterms:W3CDTF>
              </rdf:Description>
            </dcterms:created>
          </rdf:Description>
        </rdf:RDF>
      </COPASI>
    </annotation>
      <listOfFunctionDefinitions>
      <functionDefinition id="Function_for_reaction2" metaid="COPASI11" name="Function for reaction2">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI11">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2015-11-09T11:40:05Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> TGFb </ci>
            </bvar>
            <bvar>
              <ci> TGFb_R2_surface </ci>
            </bvar>
            <bvar>
              <ci> kf_R2_activation </ci>
            </bvar>
            <apply>
              <times/>
              <ci> TGFb </ci>
              <ci> TGFb_R2_surface </ci>
              <ci> kf_R2_activation </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction3" name="Function for reaction3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> TGFb </ci>
            </bvar>
            <bvar>
              <ci> TGFb_R2_surface </ci>
            </bvar>
            <bvar>
              <ci> kf_R2_activation </ci>
            </bvar>
            <apply>
              <times/>
              <ci> TGFb </ci>
              <ci> TGFb_R2_surface </ci>
              <ci> kf_R2_activation </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction21_2_0" name="Function for reaction21_2">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> TGFb_R2_endo </ci>
            </bvar>
            <bvar>
              <ci> index_k_out_2_relative_speed_C3 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R2_C3 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> TGFb_R2_endo </ci>
              <ci> index_k_out_2_relative_speed_C3 </ci>
              <ci> k_in_R2_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction4" name="Function for reaction4">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Active_R2 </ci>
            </bvar>
            <bvar>
              <ci> index_kb_R2 </ci>
            </bvar>
            <bvar>
              <ci> kf_R2_activation </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Active_R2 </ci>
              <ci> index_kb_R2 </ci>
              <ci> kf_R2_activation </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction17" name="Function for reaction17">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Inactive_Rec </ci>
            </bvar>
            <bvar>
              <ci> index_induced_R2_deg </ci>
            </bvar>
            <bvar>
              <ci> kdeg_R2 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Inactive_Rec </ci>
              <ci> index_induced_R2_deg </ci>
              <ci> kdeg_R2 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction5" metaid="COPASI12" name="Function for reaction5">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI12">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-11-05T19:10:11Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Active_R2 </ci>
            </bvar>
            <bvar>
              <ci> index_kb_R2 </ci>
            </bvar>
            <bvar>
              <ci> kf_R2_activation </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Active_R2 </ci>
              <ci> index_kb_R2 </ci>
              <ci> kf_R2_activation </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction41_2" name="Function for reaction41_2">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Trimer_import_to_nuc </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_S4_c </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> Trimer_import_to_nuc </ci>
              <ci> pS2_pS2_S4_c </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction42_0" name="Function for reaction42">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Trimer_import_to_nuc </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_pS2_c </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> Trimer_import_to_nuc </ci>
              <ci> pS2_pS2_pS2_c </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction44_4_0" name="Function for reaction44_4">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> index_trimer_dephos </ci>
            </bvar>
            <bvar>
              <ci> k_Dephos_C3 </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_S4_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> index_trimer_dephos </ci>
              <ci> k_Dephos_C3 </ci>
              <ci> pS2_pS2_S4_n </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction46_3_1_0" name="Function for reaction46_3_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S4_export_from_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> S4_import_to_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> S4_total_C3 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_S4 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> S4_total_C3 </ci>
                <apply>
                  <plus/>
                  <apply>
                    <times/>
                    <ci> S4_import_to_nuc_C3 </ci>
                    <ci> kdeg_S4 </ci>
                  </apply>
                  <apply>
                    <times/>
                    <ci> S4_export_from_nuc_C3 </ci>
                    <ci> kdeg_S4 </ci>
                  </apply>
                  <apply>
                    <power/>
                    <ci> kdeg_S4 </ci>
                    <cn type="integer"> 2 </cn>
                  </apply>
                </apply>
              </apply>
              <apply>
                <plus/>
                <apply>
                  <times/>
                  <cn type="integer"> 2 </cn>
                  <ci> S4_import_to_nuc_C3 </ci>
                </apply>
                <ci> S4_export_from_nuc_C3 </ci>
                <ci> kdeg_S4 </ci>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction35_3_0" name="Function for reaction35_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S2_c </ci>
            </bvar>
            <bvar>
              <ci> S2_import_to_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> S2_c </ci>
              <ci> S2_import_to_nuc_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction32_3_0" name="Function for reaction32_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> index_kb_homotrimer </ci>
            </bvar>
            <bvar>
              <ci> kb_trimmer </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_pS2_c </ci>
            </bvar>
            <apply>
              <times/>
              <ci> index_kb_homotrimer </ci>
              <ci> kb_trimmer </ci>
              <ci> pS2_pS2_pS2_c </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction16" name="Function for reaction16">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Inactive_Rec </ci>
            </bvar>
            <bvar>
              <ci> index_induced_ligand_deg </ci>
            </bvar>
            <bvar>
              <ci> kin_deg_Ligand </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Inactive_Rec </ci>
              <ci> index_induced_ligand_deg </ci>
              <ci> kin_deg_Ligand </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction8" metaid="COPASI13" name="Function for reaction8">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI13">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-11-05T19:10:19Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Active_Rec </ci>
            </bvar>
            <bvar>
              <ci> index_kb_R1 </ci>
            </bvar>
            <bvar>
              <ci> kf_R1_activation </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Active_Rec </ci>
              <ci> index_kb_R1 </ci>
              <ci> kf_R1_activation </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction15" metaid="COPASI14" name="Function for reaction15">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI14">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2015-11-09T11:39:48Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Inactive_Rec </ci>
            </bvar>
            <bvar>
              <ci> index_seq_kb </ci>
            </bvar>
            <bvar>
              <ci> kf_Seq_S7_Rec </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Inactive_Rec </ci>
              <ci> index_seq_kb </ci>
              <ci> kf_Seq_S7_Rec </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction1" metaid="COPASI17" name="Function for reaction1">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI17">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-11-05T19:10:23Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> TGFb </ci>
            </bvar>
            <bvar>
              <ci> TGFb_R2_surface </ci>
            </bvar>
            <bvar>
              <ci> k_medium </ci>
            </bvar>
            <bvar>
              <ci> kf_R2_activation </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> TGFb </ci>
                <ci> TGFb_R2_surface </ci>
                <ci> kf_R2_activation </ci>
              </apply>
              <ci> k_medium </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction51_3_0" name="Function for reaction51_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> DRB </ci>
            </bvar>
            <bvar>
              <ci> K_mran </ci>
            </bvar>
            <bvar>
              <ci> S7KD </ci>
            </bvar>
            <bvar>
              <ci> hill_fact1 </ci>
            </bvar>
            <bvar>
              <ci> k_induced_S7_production_C3 </ci>
            </bvar>
            <bvar>
              <ci> mRNA_prod_C3 </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_S4_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> DRB </ci>
              <ci> S7KD </ci>
              <apply>
                <plus/>
                <ci> mRNA_prod_C3 </ci>
                <apply>
                  <divide/>
                  <apply>
                    <times/>
                    <ci> k_induced_S7_production_C3 </ci>
                    <apply>
                      <power/>
                      <ci> pS2_pS2_S4_n </ci>
                      <ci> hill_fact1 </ci>
                    </apply>
                  </apply>
                  <apply>
                    <plus/>
                    <apply>
                      <power/>
                      <ci> K_mran </ci>
                      <ci> hill_fact1 </ci>
                    </apply>
                    <apply>
                      <power/>
                      <ci> pS2_pS2_S4_n </ci>
                      <ci> hill_fact1 </ci>
                    </apply>
                  </apply>
                </apply>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction22_2_0" name="Function for reaction22_2">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Active_Rec </ci>
            </bvar>
            <bvar>
              <ci> index_active_Rec_internalize_C3 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R1_C3 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Active_Rec </ci>
              <ci> index_active_Rec_internalize_C3 </ci>
              <ci> k_in_R1_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction31_2_1_0" name="Function for reaction31_2_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> index_kf_homotrimer </ci>
            </bvar>
            <bvar>
              <ci> kf_trimmer </ci>
            </bvar>
            <bvar>
              <ci> pS2_c </ci>
            </bvar>
            <apply>
              <times/>
              <ci> index_kf_homotrimer </ci>
              <ci> kf_trimmer </ci>
              <apply>
                <power/>
                <ci> pS2_c </ci>
                <cn type="integer"> 3 </cn>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction6" metaid="COPASI18" name="Function for reaction6">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI18">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-11-05T19:10:15Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Active_R2 </ci>
            </bvar>
            <bvar>
              <ci> index_kb_R2 </ci>
            </bvar>
            <bvar>
              <ci> k_medium </ci>
            </bvar>
            <bvar>
              <ci> kf_R2_activation </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> Active_R2 </ci>
                <ci> index_kb_R2 </ci>
                <ci> kf_R2_activation </ci>
              </apply>
              <ci> k_medium </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction26_0" name="Function for reaction26">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Active_Rec_endo </ci>
            </bvar>
            <bvar>
              <ci> S2_c </ci>
            </bvar>
            <bvar>
              <ci> k_phosphorylation </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Active_Rec_endo </ci>
              <ci> S2_c </ci>
              <ci> k_phosphorylation </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction52_3" name="Function for reaction52_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Smad7mRNA1 </ci>
            </bvar>
            <bvar>
              <ci> export_cytoplasm </ci>
            </bvar>
            <bvar>
              <ci> nuc </ci>
            </bvar>
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> Smad7mRNA1 </ci>
              <ci> export_cytoplasm </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction47_3_1_0" name="Function for reaction47_3_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> R1_total_C3 </ci>
            </bvar>
            <bvar>
              <ci> index_k_out_1_relative_speed_C3 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R1_C3 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_R1 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> R1_total_C3 </ci>
                <ci> k_in_R1_C3 </ci>
                <apply>
                  <power/>
                  <ci> kdeg_R1 </ci>
                  <cn type="integer"> 2 </cn>
                </apply>
              </apply>
              <apply>
                <plus/>
                <apply>
                  <times/>
                  <ci> k_in_R1_C3 </ci>
                  <ci> kdeg_R1 </ci>
                </apply>
                <apply>
                  <power/>
                  <ci> kdeg_R1 </ci>
                  <cn type="integer"> 2 </cn>
                </apply>
                <apply>
                  <times/>
                  <ci> index_k_out_1_relative_speed_C3 </ci>
                  <ci> k_in_R1_C3 </ci>
                  <ci> kdeg_R1 </ci>
                </apply>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction38_3_0" name="Function for reaction38_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S4_export_from_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> S4_n </ci>
            </bvar>
            <bvar>
              <ci> nuc </ci>
            </bvar>
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> S4_n </ci>
              <ci> S4_export_from_nuc_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction53_1_0" name="Function for reaction53_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> Smad7mRNA </ci>
            </bvar>
            <bvar>
              <ci> k_S7_protein_C3 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Smad7mRNA </ci>
              <ci> k_S7_protein_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction40_3_0" name="Function for reaction40_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S2_export_from_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> nuc </ci>
            </bvar>
            <bvar>
              <ci> pS2_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> S2_export_from_nuc_C3 </ci>
              <ci> pS2_n </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction36_3_0" name="Function for reaction36_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S2_export_from_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> S2_n </ci>
            </bvar>
            <bvar>
              <ci> nuc </ci>
            </bvar>
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> S2_n </ci>
              <ci> S2_export_from_nuc_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction48_1_1_0" name="Function for reaction48_1_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> R2_total_C3 </ci>
            </bvar>
            <bvar>
              <ci> index_k_out_2_relative_speed_C3 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R2_C3 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_R2 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> R2_total_C3 </ci>
                <ci> k_in_R2_C3 </ci>
                <apply>
                  <power/>
                  <ci> kdeg_R2 </ci>
                  <cn type="integer"> 2 </cn>
                </apply>
              </apply>
              <apply>
                <plus/>
                <apply>
                  <times/>
                  <ci> k_in_R2_C3 </ci>
                  <ci> kdeg_R2 </ci>
                </apply>
                <apply>
                  <power/>
                  <ci> kdeg_R2 </ci>
                  <cn type="integer"> 2 </cn>
                </apply>
                <apply>
                  <times/>
                  <ci> index_k_out_2_relative_speed_C3 </ci>
                  <ci> k_in_R2_C3 </ci>
                  <ci> kdeg_R2 </ci>
                </apply>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction39_3_0" name="Function for reaction39_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S2_import_to_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <bvar>
              <ci> pS2_c </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> S2_import_to_nuc_C3 </ci>
              <ci> pS2_c </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction37_3_0" name="Function for reaction37_3">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S4_c </ci>
            </bvar>
            <bvar>
              <ci> S4_import_to_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> S4_c </ci>
              <ci> S4_import_to_nuc_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction34_2_0" name="Function for reaction34_2">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> index_kb_homotrimer </ci>
            </bvar>
            <bvar>
              <ci> kb_trimmer </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_pS2_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> index_kb_homotrimer </ci>
              <ci> kb_trimmer </ci>
              <ci> pS2_pS2_pS2_n </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction33_2_1_0" name="Function for reaction33_2_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> index_kf_homotrimer </ci>
            </bvar>
            <bvar>
              <ci> kf_trimmer </ci>
            </bvar>
            <bvar>
              <ci> pS2_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> index_kf_homotrimer </ci>
              <ci> kf_trimmer </ci>
              <apply>
                <power/>
                <ci> pS2_n </ci>
                <cn type="integer"> 3 </cn>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction45_3_1_0" name="Function for reaction45_3_1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> S2_export_from_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> S2_import_to_nuc_C3 </ci>
            </bvar>
            <bvar>
              <ci> S2_total_C3 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_S2 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> S2_total_C3 </ci>
                <apply>
                  <plus/>
                  <apply>
                    <times/>
                    <ci> S2_import_to_nuc_C3 </ci>
                    <ci> kdeg_S2 </ci>
                  </apply>
                  <apply>
                    <times/>
                    <ci> S2_export_from_nuc_C3 </ci>
                    <ci> kdeg_S2 </ci>
                  </apply>
                  <apply>
                    <power/>
                    <ci> kdeg_S2 </ci>
                    <cn type="integer"> 2 </cn>
                  </apply>
                </apply>
              </apply>
              <apply>
                <plus/>
                <apply>
                  <times/>
                  <cn type="integer"> 2 </cn>
                  <ci> S2_import_to_nuc_C3 </ci>
                </apply>
                <ci> S2_export_from_nuc_C3 </ci>
                <ci> kdeg_S2 </ci>
              </apply>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
      <functionDefinition id="Function_for_reaction20_2_0" name="Function for reaction20_2">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <lambda>
            <bvar>
              <ci> TGFb_R1_endo </ci>
            </bvar>
            <bvar>
              <ci> index_k_out_1_relative_speed_C3 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R1_C3 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> TGFb_R1_endo </ci>
              <ci> index_k_out_1_relative_speed_C3 </ci>
              <ci> k_in_R1_C3 </ci>
            </apply>
          </lambda>
        </math>
            </functionDefinition>
    </listOfFunctionDefinitions>
    <listOfUnitDefinitions>
      <unitDefinition id="time" name="time">
        <listOfUnits>
          <unit exponent="1" kind="second" multiplier="60" scale="0"/>
        </listOfUnits>
      </unitDefinition>
      <unitDefinition id="substance" name="substance">
        <listOfUnits>
          <unit exponent="1" kind="item" multiplier="1" scale="0"/>
        </listOfUnits>
      </unitDefinition>
    </listOfUnitDefinitions>
    <listOfCompartments>
      <compartment constant="true" id="cyt" name="cyt" size="2" spatialDimensions="3"/>
      <compartment constant="true" id="nuc" name="nuc" size="1" spatialDimensions="3"/>
    </listOfCompartments>
    <listOfSpecies>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="TGFb_R1_surface" initialConcentration="39.1453163247034" name="TGFb_R1_surface"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="TGFb_R2_surface" initialConcentration="15.3419048677147" name="TGFb_R2_surface"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="TGFb_R1_endo" initialConcentration="30.5746825808989" name="TGFb_R1_endo"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="TGFb_R2_endo" initialConcentration="33.8506390142416" name="TGFb_R2_endo"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="TGFb" initialConcentration="100" metaid="COPASI0" name="TGFb">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI0">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-09-07T16:53:39Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
            </species>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="TGFb_In" initialConcentration="0" name="TGFb_In"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="Active_R2" initialConcentration="0" name="Active_R2"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="Active_Rec" initialConcentration="0" name="Active_Rec"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="Active_Rec_endo" initialConcentration="0" name="Active_Rec_endo"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="Inactive_Rec" initialConcentration="0" name="Inactive_Rec"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="pS2_c" initialConcentration="0" name="pS2_c"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="S2_c" initialConcentration="1146.01803838863" name="S2_c"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="S4_c" initialConcentration="143.916431450302" name="S4_c"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="pS2_pS2_S4_c" initialConcentration="0" name="pS2_pS2_S4_c"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="pS2_pS2_pS2_c" initialConcentration="0" name="pS2_pS2_pS2_c"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="Smad7mRNA" initialConcentration="0.103311072468942" name="Smad7mRNA"/>
      <species boundaryCondition="false" compartment="nuc" constant="false" id="Smad7mRNA1" initialConcentration="0.67216411877982" name="Smad7mRNA1"/>
      <species boundaryCondition="false" compartment="cyt" constant="false" id="S7" initialConcentration="12.4243231076787" name="S7"/>
      <species boundaryCondition="false" compartment="nuc" constant="false" id="pS2_n" initialConcentration="0" name="pS2_n"/>
      <species boundaryCondition="false" compartment="nuc" constant="false" id="pS2_pS2_S4_n" initialConcentration="0" name="pS2_pS2_S4_n"/>
      <species boundaryCondition="false" compartment="nuc" constant="false" id="pS2_pS2_pS2_n" initialConcentration="0" name="pS2_pS2_pS2_n"/>
      <species boundaryCondition="false" compartment="nuc" constant="false" id="S2_n" initialConcentration="189.761470115617" name="S2_n"/>
      <species boundaryCondition="false" compartment="nuc" constant="false" id="S4_n" initialConcentration="203.589335374132" name="S4_n"/>
    </listOfSpecies>
    <listOfParameters>
      <parameter constant="true" id="DRB" metaid="COPASI2" name="DRB" value="1">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI2">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-10-17T17:51:15Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
            </parameter>
      <parameter constant="true" id="K_mran" name="K_mran" value="223.586"/>
      <parameter constant="true" id="R1_total_C3" name="R1_total_C3" value="69.7199989056023"/>
      <parameter constant="true" id="R2_total_C3" name="R2_total_C3" value="49.1925438819563"/>
      <parameter constant="true" id="S2_export_from_nuc_C3" name="S2_export_from_nuc_C3" value="3.00430865315074"/>
      <parameter constant="true" id="S2_import_to_nuc_C3" name="S2_import_to_nuc_C3" value="0.248774260500559"/>
      <parameter constant="true" id="S2_total_C3" name="S2_total_C3" value="1335.77950850425"/>
      <parameter constant="true" id="S4_export_from_nuc_C3" name="S4_export_from_nuc_C3" value="0.0984718694215043"/>
      <parameter constant="true" id="S4_import_to_nuc_C3" name="S4_import_to_nuc_C3" value="0.0730474752631315"/>
      <parameter constant="true" id="S4_total_C3" name="S4_total_C3" value="347.505766824434"/>
      <parameter constant="true" id="S7KD" metaid="COPASI3" name="S7KD" value="1">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI3">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-10-17T17:46:13Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
            </parameter>
      <parameter constant="true" id="Trimer_import_to_nuc" name="Trimer_import_to_nuc" value="0.144035002432848"/>
      <parameter constant="true" id="export_cytoplasm" name="export_cytoplasm" value="0.0304372961307751"/>
      <parameter constant="true" id="hill_fact1" name="hill_fact1" value="3.98630224594983"/>
      <parameter constant="true" id="index_active_Rec_internalize_C3" name="index_active_Rec_internalize_C3" value="1.0379108128956"/>
      <parameter constant="true" id="index_induced_R2_deg" name="index_induced_R2_deg" value="1.00037776866312"/>
      <parameter constant="true" id="index_induced_ligand_deg" name="index_induced_ligand_deg" value="2.72106513634098"/>
      <parameter constant="true" id="index_k_out_1_relative_speed_C3" name="index_k_out_1_relative_speed_C3" value="1.13287434679021"/>
      <parameter constant="true" id="index_k_out_2_relative_speed_C3" name="index_k_out_2_relative_speed_C3" value="0.450697494637432"/>
      <parameter constant="true" id="index_kb_R1" name="index_kb_R1" value="1.61290474569122"/>
      <parameter constant="true" id="index_kb_R2" name="index_kb_R2" value="8.70498854136694"/>
      <parameter constant="true" id="index_kb_homotrimer" name="index_kb_homotrimer" value="0.0163921522930962"/>
      <parameter constant="true" id="index_kf_homotrimer" name="index_kf_homotrimer" value="4.4857919268227"/>
      <parameter constant="true" id="index_seq_kb" name="index_seq_kb" value="0.000865131944828012"/>
      <parameter constant="true" id="index_trimer_dephos" name="index_trimer_dephos" value="2.61013820571304"/>
      <parameter constant="true" id="k_Dephos_C3" metaid="COPASI4" name="k_Dephos_C3" value="0.0707018316477647">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI4">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-10-17T17:52:07Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
            </parameter>
      <parameter constant="true" id="k_S7_protein_C3" name="k_S7_protein_C3" value="0.123149764012103"/>
      <parameter constant="true" id="k_disso_Active_Rec" name="k_disso_Active_Rec" value="0.00103940411358367"/>
      <parameter constant="true" id="k_in_R1_C3" name="k_in_R1_C3" value="0.397836393488341"/>
      <parameter constant="true" id="k_in_R2_C3" name="k_in_R2_C3" value="0.396038887562465"/>
      <parameter constant="true" id="k_induced_S7_production_C3" metaid="COPASI6" name="k_induced_S7_production_C3" value="2.9510868497">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI6">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-11-10T11:07:13Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
            </parameter>
      <parameter constant="true" id="k_medium" name="k_medium" value="2000000"/>
      <parameter constant="true" id="k_phosphorylation" name="k_phosphorylation" value="0.0701560191772152"/>
      <parameter constant="true" id="kb_trimmer" name="kb_trimmer" value="1.6077346670684"/>
      <parameter constant="true" id="kdeg_R1" name="kdeg_R1" value="0.0586584495713968"/>
      <parameter constant="true" id="kdeg_R2" name="kdeg_R2" value="0.0010003937382472"/>
      <parameter constant="true" id="kdeg_S2" name="kdeg_S2" value="0.000514084012175461"/>
      <parameter constant="true" id="kdeg_S4" name="kdeg_S4" value="0.00480202699360057"/>
      <parameter constant="true" id="kdeg_S7" name="kdeg_S7" value="0.00102401829734485"/>
      <parameter constant="true" id="kf_R1_activation" name="kf_R1_activation" value="4.98548548076033"/>
      <parameter constant="true" id="kf_R2_activation" name="kf_R2_activation" value="4.95559496701657"/>
      <parameter constant="true" id="kf_Seq_S7_Rec" name="kf_Seq_S7_Rec" value="0.882455038106022"/>
      <parameter constant="true" id="kf_trimmer" name="kf_trimmer" value="4.81424700307387"/>
      <parameter constant="true" id="kin_deg_Ligand" name="kin_deg_Ligand" value="0.720182234635314"/>
      <parameter constant="true" id="kmRNA1deg_S7" name="kmRNA1deg_S7" value="0.00523181439900629"/>
      <parameter constant="true" id="kmRNAdeg_S7" name="kmRNAdeg_S7" value="0.0990158065483902"/>
      <parameter constant="true" id="kout_deg_Ligand_100pM" name="kout_deg_Ligand_100pM" value="0.00036189622"/>
      <parameter constant="true" id="mRNA_prod_C3" name="mRNA_prod_C3" value="0.0239754962469105"/>
      <parameter constant="false" id="NUC_CYT_SMAD2" metaid="COPASI1" name="NUC/CYT SMAD2" value="0.165583318725447">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI1">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-09-07T16:51:42Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
            </parameter>
    </listOfParameters>
    <listOfInitialAssignments>
      <initialAssignment symbol="TGFb_R1_surface">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> R1_total_C3 </ci>
              <ci> kdeg_R1 </ci>
              <apply>
                <plus/>
                <ci> kdeg_R1 </ci>
                <apply>
                  <times/>
                  <ci> index_k_out_1_relative_speed_C3 </ci>
                  <ci> k_in_R1_C3 </ci>
                </apply>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R1_C3 </ci>
                <ci> kdeg_R1 </ci>
              </apply>
              <apply>
                <power/>
                <ci> kdeg_R1 </ci>
                <cn type="integer"> 2 </cn>
              </apply>
              <apply>
                <times/>
                <ci> index_k_out_1_relative_speed_C3 </ci>
                <ci> k_in_R1_C3 </ci>
                <ci> kdeg_R1 </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="TGFb_R2_surface">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> R2_total_C3 </ci>
              <ci> kdeg_R2 </ci>
              <apply>
                <plus/>
                <ci> kdeg_R2 </ci>
                <apply>
                  <times/>
                  <ci> index_k_out_2_relative_speed_C3 </ci>
                  <ci> k_in_R2_C3 </ci>
                </apply>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R2_C3 </ci>
                <ci> kdeg_R2 </ci>
              </apply>
              <apply>
                <power/>
                <ci> kdeg_R2 </ci>
                <cn type="integer"> 2 </cn>
              </apply>
              <apply>
                <times/>
                <ci> index_k_out_2_relative_speed_C3 </ci>
                <ci> k_in_R2_C3 </ci>
                <ci> kdeg_R2 </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="TGFb_R1_endo">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> R1_total_C3 </ci>
              <ci> k_in_R1_C3 </ci>
              <ci> kdeg_R1 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R1_C3 </ci>
                <ci> kdeg_R1 </ci>
              </apply>
              <apply>
                <power/>
                <ci> kdeg_R1 </ci>
                <cn type="integer"> 2 </cn>
              </apply>
              <apply>
                <times/>
                <ci> index_k_out_1_relative_speed_C3 </ci>
                <ci> k_in_R1_C3 </ci>
                <ci> kdeg_R1 </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="TGFb_R2_endo">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> R2_total_C3 </ci>
              <ci> k_in_R2_C3 </ci>
              <ci> kdeg_R2 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R2_C3 </ci>
                <ci> kdeg_R2 </ci>
              </apply>
              <apply>
                <power/>
                <ci> kdeg_R2 </ci>
                <cn type="integer"> 2 </cn>
              </apply>
              <apply>
                <times/>
                <ci> index_k_out_2_relative_speed_C3 </ci>
                <ci> k_in_R2_C3 </ci>
                <ci> kdeg_R2 </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="S2_c">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> S2_total_C3 </ci>
              <apply>
                <plus/>
                <ci> S2_export_from_nuc_C3 </ci>
                <ci> kdeg_S2 </ci>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S2_import_to_nuc_C3 </ci>
              </apply>
              <ci> S2_export_from_nuc_C3 </ci>
              <ci> kdeg_S2 </ci>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="S4_c">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> S4_total_C3 </ci>
              <apply>
                <plus/>
                <ci> S4_export_from_nuc_C3 </ci>
                <ci> kdeg_S4 </ci>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S4_import_to_nuc_C3 </ci>
              </apply>
              <ci> S4_export_from_nuc_C3 </ci>
              <ci> kdeg_S4 </ci>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="Smad7mRNA">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> export_cytoplasm </ci>
              <ci> mRNA_prod_C3 </ci>
            </apply>
            <apply>
              <times/>
              <cn type="integer"> 2 </cn>
              <ci> kmRNAdeg_S7 </ci>
              <apply>
                <plus/>
                <ci> export_cytoplasm </ci>
                <ci> kmRNA1deg_S7 </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="Smad7mRNA1">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <ci> mRNA_prod_C3 </ci>
            <apply>
              <plus/>
              <ci> export_cytoplasm </ci>
              <ci> kmRNA1deg_S7 </ci>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="S7">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <ci> export_cytoplasm </ci>
              <ci> k_S7_protein_C3 </ci>
              <ci> mRNA_prod_C3 </ci>
            </apply>
            <apply>
              <times/>
              <cn type="integer"> 2 </cn>
              <ci> kdeg_S7 </ci>
              <ci> kmRNAdeg_S7 </ci>
              <apply>
                <plus/>
                <ci> export_cytoplasm </ci>
                <ci> kmRNA1deg_S7 </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="S2_n">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <cn type="integer"> 2 </cn>
              <ci> S2_total_C3 </ci>
              <ci> S2_import_to_nuc_C3 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S2_import_to_nuc_C3 </ci>
              </apply>
              <ci> S2_export_from_nuc_C3 </ci>
              <ci> kdeg_S2 </ci>
            </apply>
          </apply>
        </math>
            </initialAssignment>
      <initialAssignment symbol="S4_n">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <times/>
              <cn type="integer"> 2 </cn>
              <ci> S4_total_C3 </ci>
              <ci> S4_import_to_nuc_C3 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S4_import_to_nuc_C3 </ci>
              </apply>
              <ci> S4_export_from_nuc_C3 </ci>
              <ci> kdeg_S4 </ci>
            </apply>
          </apply>
        </math>
            </initialAssignment>
    </listOfInitialAssignments>
    <listOfRules>
      <assignmentRule variable="NUC_CYT_SMAD2">
        <math xmlns="http://www.w3.org/1998/Math/MathML">        
          <apply>
            <divide/>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn> 2 </cn>
                <ci> pS2_pS2_S4_n </ci>
              </apply>
              <ci> pS2_n </ci>
              <ci> S2_n </ci>
              <apply>
                <times/>
                <cn> 3 </cn>
                <ci> pS2_pS2_pS2_n </ci>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn> 2 </cn>
                <ci> pS2_pS2_S4_c </ci>
              </apply>
              <ci> pS2_c </ci>
              <ci> S2_c </ci>
              <apply>
                <times/>
                <cn> 3 </cn>
                <ci> pS2_pS2_pS2_c </ci>
              </apply>
            </apply>
          </apply>
        </math>
            </assignmentRule>
    </listOfRules>
    <listOfReactions>
      <reaction id="reaction1" name="reaction1" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb" stoichiometry="1"/>
        </listOfReactants>
        <listOfModifiers>
          <modifierSpeciesReference species="TGFb_R2_surface"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction1 </ci>
                <ci> TGFb </ci>
                <ci> TGFb_R2_surface </ci>
                <ci> k_medium </ci>
                <ci> kf_R2_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction2" name="reaction2" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R2_surface" stoichiometry="1"/>
        </listOfReactants>
        <listOfModifiers>
          <modifierSpeciesReference species="TGFb"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction2 </ci>
                <ci> TGFb </ci>
                <ci> TGFb_R2_surface </ci>
                <ci> kf_R2_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction3" name="reaction3" reversible="false">
        <listOfProducts>
          <speciesReference species="Active_R2" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="TGFb"/>
          <modifierSpeciesReference species="TGFb_R2_surface"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction3 </ci>
                <ci> TGFb </ci>
                <ci> TGFb_R2_surface </ci>
                <ci> kf_R2_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction4" name="reaction4" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_R2" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction4 </ci>
                <ci> Active_R2 </ci>
                <ci> index_kb_R2 </ci>
                <ci> kf_R2_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction5" name="reaction5" reversible="false">
        <listOfProducts>
          <speciesReference species="TGFb_R2_surface" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="Active_R2"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction5 </ci>
                <ci> Active_R2 </ci>
                <ci> index_kb_R2 </ci>
                <ci> kf_R2_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction6" name="reaction6" reversible="false">
        <listOfProducts>
          <speciesReference species="TGFb" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="Active_R2"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction6 </ci>
                <ci> Active_R2 </ci>
                <ci> index_kb_R2 </ci>
                <ci> k_medium </ci>
                <ci> kf_R2_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction7" name="reaction7" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R1_surface" stoichiometry="1"/>
          <speciesReference species="Active_R2" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="Active_Rec" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kf_R1_activation </ci>
              <ci> TGFb_R1_surface </ci>
              <ci> Active_R2 </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction8" name="reaction8" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_surface" stoichiometry="1"/>
          <speciesReference species="Active_R2" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction8 </ci>
                <ci> Active_Rec </ci>
                <ci> index_kb_R1 </ci>
                <ci> kf_R1_activation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction9" name="reaction9" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec_endo" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_In" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_R2 </ci>
              <ci> Active_Rec_endo </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction10" name="reaction10" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec_endo" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_In" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_R1 </ci>
              <ci> Active_Rec_endo </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction11" name="reaction11" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec_endo" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kin_deg_Ligand </ci>
              <ci> Active_Rec_endo </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction12" name="reaction12" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_R1 </ci>
              <ci> TGFb_R1_endo </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction13" name="reaction13" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_R2 </ci>
              <ci> TGFb_R2_endo </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction14" name="reaction14" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec" stoichiometry="1"/>
          <speciesReference species="S7" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="Inactive_Rec" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kf_Seq_S7_Rec </ci>
              <ci> Active_Rec </ci>
              <ci> S7 </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction15" name="reaction15" reversible="false">
        <listOfReactants>
          <speciesReference species="Inactive_Rec" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="Active_Rec" stoichiometry="1"/>
          <speciesReference species="S7" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction15 </ci>
                <ci> Inactive_Rec </ci>
                <ci> index_seq_kb </ci>
                <ci> kf_Seq_S7_Rec </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction16" name="reaction16" reversible="false">
        <listOfReactants>
          <speciesReference species="Inactive_Rec" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
          <speciesReference species="S7" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction16 </ci>
                <ci> Inactive_Rec </ci>
                <ci> index_induced_ligand_deg </ci>
                <ci> kin_deg_Ligand </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction17" name="reaction17" reversible="false">
        <listOfReactants>
          <speciesReference species="Inactive_Rec" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_In" stoichiometry="1"/>
          <speciesReference species="S7" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction17 </ci>
                <ci> Inactive_Rec </ci>
                <ci> index_induced_R2_deg </ci>
                <ci> kdeg_R2 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction18" name="reaction18" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R1_surface" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> k_in_R1_C3 </ci>
              <ci> TGFb_R1_surface </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction19" name="reaction19" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R2_surface" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> k_in_R2_C3 </ci>
              <ci> TGFb_R2_surface </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction20" name="reaction20" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_surface" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction20_2_0 </ci>
                <ci> TGFb_R1_endo </ci>
                <ci> index_k_out_1_relative_speed_C3 </ci>
                <ci> k_in_R1_C3 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction21" name="reaction21" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R2_surface" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction21_2_0 </ci>
                <ci> TGFb_R2_endo </ci>
                <ci> index_k_out_2_relative_speed_C3 </ci>
                <ci> k_in_R2_C3 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction22" name="reaction22" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="Active_Rec_endo" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction22_2_0 </ci>
                <ci> Active_Rec </ci>
                <ci> index_active_Rec_internalize_C3 </ci>
                <ci> k_in_R1_C3 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction23" name="reaction23" reversible="false">
        <listOfReactants>
          <speciesReference species="Active_Rec_endo" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="TGFb_R1_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_R2_endo" stoichiometry="1"/>
          <speciesReference species="TGFb_In" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> k_disso_Active_Rec </ci>
              <ci> Active_Rec_endo </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction24" name="reaction24" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb_In" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kin_deg_Ligand </ci>
              <ci> TGFb_In </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction25" name="reaction25" reversible="false">
        <listOfReactants>
          <speciesReference species="TGFb" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kout_deg_Ligand_100pM </ci>
              <ci> TGFb </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction26" name="reaction26" reversible="false">
        <listOfReactants>
          <speciesReference species="S2_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="Active_Rec_endo"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction26_0 </ci>
                <ci> Active_Rec_endo </ci>
                <ci> S2_c </ci>
                <ci> k_phosphorylation </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction27" name="reaction27" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_c" stoichiometry="2"/>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_pS2_S4_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kf_trimmer </ci>
              <apply>
                <power/>
                <ci> pS2_c </ci>
                <cn> 2 </cn>
              </apply>
              <ci> S4_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction28" name="reaction28" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="2"/>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kb_trimmer </ci>
              <ci> pS2_pS2_S4_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction29" name="reaction29" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_n" stoichiometry="2"/>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_pS2_S4_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kf_trimmer </ci>
              <apply>
                <power/>
                <ci> pS2_n </ci>
                <cn> 2 </cn>
              </apply>
              <ci> S4_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction30" name="reaction30" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="2"/>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kb_trimmer </ci>
              <ci> pS2_pS2_S4_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction31" name="reaction31" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_c" stoichiometry="3"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_pS2_pS2_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction31_2_1_0 </ci>
                <ci> index_kf_homotrimer </ci>
                <ci> kf_trimmer </ci>
                <ci> pS2_c </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction32" name="reaction32" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_pS2_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="3"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction32_3_0 </ci>
                <ci> index_kb_homotrimer </ci>
                <ci> kb_trimmer </ci>
                <ci> pS2_pS2_pS2_c </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction33" name="reaction33" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_n" stoichiometry="3"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_pS2_pS2_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <apply>
                <ci> Function_for_reaction33_2_1_0 </ci>
                <ci> index_kf_homotrimer </ci>
                <ci> kf_trimmer </ci>
                <ci> pS2_n </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction34" name="reaction34" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_pS2_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="3"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <apply>
                <ci> Function_for_reaction34_2_0 </ci>
                <ci> index_kb_homotrimer </ci>
                <ci> kb_trimmer </ci>
                <ci> pS2_pS2_pS2_n </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction35" name="reaction35" reversible="false">
        <listOfReactants>
          <speciesReference species="S2_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="S2_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction35_3_0 </ci>
              <ci> S2_c </ci>
              <ci> S2_import_to_nuc_C3 </ci>
              <ci> cyt </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction36" name="reaction36" reversible="false">
        <listOfReactants>
          <speciesReference species="S2_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="S2_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction36_3_0 </ci>
              <ci> S2_export_from_nuc_C3 </ci>
              <ci> S2_n </ci>
              <ci> nuc </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction37" name="reaction37" reversible="false">
        <listOfReactants>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction37_3_0 </ci>
              <ci> S4_c </ci>
              <ci> S4_import_to_nuc_C3 </ci>
              <ci> cyt </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction38" name="reaction38" reversible="false">
        <listOfReactants>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction38_3_0 </ci>
              <ci> S4_export_from_nuc_C3 </ci>
              <ci> S4_n </ci>
              <ci> nuc </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction39" name="reaction39" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction39_3_0 </ci>
              <ci> S2_import_to_nuc_C3 </ci>
              <ci> cyt </ci>
              <ci> pS2_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction40" name="reaction40" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction40_3_0 </ci>
              <ci> S2_export_from_nuc_C3 </ci>
              <ci> nuc </ci>
              <ci> pS2_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction41" name="reaction41" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_pS2_S4_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction41_2 </ci>
              <ci> Trimer_import_to_nuc </ci>
              <ci> cyt </ci>
              <ci> pS2_pS2_S4_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction42" name="reaction42" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_pS2_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_pS2_pS2_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction42_0 </ci>
              <ci> Trimer_import_to_nuc </ci>
              <ci> cyt </ci>
              <ci> pS2_pS2_pS2_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction43" name="reaction43" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="S2_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> k_Dephos_C3 </ci>
              <ci> pS2_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction44" name="reaction44" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="1"/>
          <speciesReference species="S2_n" stoichiometry="1"/>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <apply>
                <ci> Function_for_reaction44_4_0 </ci>
                <ci> index_trimer_dephos </ci>
                <ci> k_Dephos_C3 </ci>
                <ci> pS2_pS2_S4_n </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction45" name="reaction45" reversible="false">
        <listOfProducts>
          <speciesReference species="S2_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction45_3_1_0 </ci>
                <ci> S2_export_from_nuc_C3 </ci>
                <ci> S2_import_to_nuc_C3 </ci>
                <ci> S2_total_C3 </ci>
                <ci> kdeg_S2 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction46" name="reaction46" reversible="false">
        <listOfProducts>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction46_3_1_0 </ci>
                <ci> S4_export_from_nuc_C3 </ci>
                <ci> S4_import_to_nuc_C3 </ci>
                <ci> S4_total_C3 </ci>
                <ci> kdeg_S4 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction47" name="reaction47" reversible="false">
        <listOfProducts>
          <speciesReference species="TGFb_R1_surface" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction47_3_1_0 </ci>
                <ci> R1_total_C3 </ci>
                <ci> index_k_out_1_relative_speed_C3 </ci>
                <ci> k_in_R1_C3 </ci>
                <ci> kdeg_R1 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction48" name="reaction48" reversible="false">
        <listOfProducts>
          <speciesReference species="TGFb_R2_surface" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction48_1_1_0 </ci>
                <ci> R2_total_C3 </ci>
                <ci> index_k_out_2_relative_speed_C3 </ci>
                <ci> k_in_R2_C3 </ci>
                <ci> kdeg_R2 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction51" metaid="COPASI5" name="reaction51" reversible="false">
        <annotation>
          <COPASI xmlns="http://www.copasi.org/static/sbml">
            <rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
              <rdf:Description rdf:about="#COPASI5">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-10-17T17:51:28Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
              <listOfProducts>
          <speciesReference species="Smad7mRNA1" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="pS2_pS2_S4_n"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <apply>
                <ci> Function_for_reaction51_3_0 </ci>
                <ci> DRB </ci>
                <ci> K_mran </ci>
                <ci> S7KD </ci>
                <ci> hill_fact1 </ci>
                <ci> k_induced_S7_production_C3 </ci>
                <ci> mRNA_prod_C3 </ci>
                <ci> pS2_pS2_S4_n </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction52" name="reaction52" reversible="false">
        <listOfReactants>
          <speciesReference species="Smad7mRNA1" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="Smad7mRNA" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <ci> Function_for_reaction52_3 </ci>
              <ci> Smad7mRNA1 </ci>
              <ci> export_cytoplasm </ci>
              <ci> nuc </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction53" name="reaction53" reversible="false">
        <listOfProducts>
          <speciesReference species="S7" stoichiometry="1"/>
        </listOfProducts>
        <listOfModifiers>
          <modifierSpeciesReference species="Smad7mRNA"/>
        </listOfModifiers>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <apply>
                <ci> Function_for_reaction53_1_0 </ci>
                <ci> Smad7mRNA </ci>
                <ci> k_S7_protein_C3 </ci>
              </apply>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction54" name="reaction54" reversible="false">
        <listOfReactants>
          <speciesReference species="S2_c" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S2 </ci>
              <ci> S2_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction55" name="reaction55" reversible="false">
        <listOfReactants>
          <speciesReference species="S2_n" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kdeg_S2 </ci>
              <ci> S2_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction56" name="reaction56" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_n" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kdeg_S2 </ci>
              <ci> pS2_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction57" name="reaction57" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_c" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S2 </ci>
              <ci> pS2_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction58" name="reaction58" reversible="false">
        <listOfReactants>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S4 </ci>
              <ci> S4_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction59" name="reaction59" reversible="false">
        <listOfReactants>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kdeg_S4 </ci>
              <ci> S4_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction60" name="reaction60" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="1"/>
          <speciesReference species="S4_c" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S2 </ci>
              <ci> pS2_pS2_S4_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction61" name="reaction61" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="2"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S4 </ci>
              <ci> pS2_pS2_S4_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction62" name="reaction62" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_pS2_c" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_c" stoichiometry="2"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S2 </ci>
              <ci> pS2_pS2_pS2_c </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction63" name="reaction63" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="1"/>
          <speciesReference species="S4_n" stoichiometry="1"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kdeg_S2 </ci>
              <ci> pS2_pS2_S4_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction64" name="reaction64" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_S4_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="2"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kdeg_S4 </ci>
              <ci> pS2_pS2_S4_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction65" name="reaction65" reversible="false">
        <listOfReactants>
          <speciesReference species="pS2_pS2_pS2_n" stoichiometry="1"/>
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="pS2_n" stoichiometry="2"/>
        </listOfProducts>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kdeg_S2 </ci>
              <ci> pS2_pS2_pS2_n </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction66" name="reaction66" reversible="false">
        <listOfReactants>
          <speciesReference species="Smad7mRNA1" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> kmRNA1deg_S7 </ci>
              <ci> Smad7mRNA1 </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction67" name="reaction67" reversible="false">
        <listOfReactants>
          <speciesReference species="Smad7mRNA" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kmRNAdeg_S7 </ci>
              <ci> Smad7mRNA </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
      <reaction id="reaction68" name="reaction68" reversible="false">
        <listOfReactants>
          <speciesReference species="S7" stoichiometry="1"/>
        </listOfReactants>
        <kineticLaw>
          <math xmlns="http://www.w3.org/1998/Math/MathML">          
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> kdeg_S7 </ci>
              <ci> S7 </ci>
            </apply>
          </math>
                </kineticLaw>
      </reaction>
    </listOfReactions>
  </model>
</sbml>