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  <model metaid="arFramework3" id="C5_Aug_2016" name="Strasen2018 – TGFβ SMAD Signalling Class 5">
    <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>2017-09-07T17:07:41Z</dcterms:W3CDTF>
              </rdf:Description>
            </dcterms:created>
          </rdf:Description>
        </rdf:RDF>
      </COPASI>
    </annotation>
    <listOfFunctionDefinitions>
      <functionDefinition id="Function_for_reaction1_0" name="Function for reaction1">
        <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_reaction2_0" name="Function for reaction2">
        <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_reaction17_0" 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_reaction6_0" name="Function for reaction6">
        <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_reaction3_0" 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_reaction16_0" 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_reaction15_0" name="Function for reaction15">
        <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_reaction8_0" name="Function for reaction8">
        <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_reaction4_0" 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_reaction5_0" name="Function for reaction5">
        <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_reaction31_2" name="Function for reaction31_2">
        <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_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_reaction20" name="Function for reaction20_7">
        <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_C5 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R1_C5 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> TGFb_R1_endo </ci>
              <ci> index_k_out_1_relative_speed_C5 </ci>
              <ci> k_in_R1_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction39" name="Function for reaction39_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S2_import_to_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <bvar>
              <ci> pS2_c </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> S2_import_to_nuc_C5 </ci>
              <ci> pS2_c </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_reaction32_3" 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_reaction34_2" 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_reaction37" name="Function for reaction37_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S4_c </ci>
            </bvar>
            <bvar>
              <ci> S4_import_to_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> S4_c </ci>
              <ci> S4_import_to_nuc_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction48" name="Function for reaction48_5">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> R2_total_C5 </ci>
            </bvar>
            <bvar>
              <ci> index_k_out_2_relative_speed_C5 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R2_C5 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_R2 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> R2_total_C5 </ci>
                <ci> k_in_R2_C5 </ci>
                <apply>
                  <power/>
                  <ci> kdeg_R2 </ci>
                  <cn type="integer"> 2 </cn>
                </apply>
              </apply>
              <apply>
                <plus/>
                <apply>
                  <times/>
                  <ci> k_in_R2_C5 </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_C5 </ci>
                  <ci> k_in_R2_C5 </ci>
                  <ci> kdeg_R2 </ci>
                </apply>
              </apply>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction38" name="Function for reaction38_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S4_export_from_nuc_C5 </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_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction44" name="Function for reaction44_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> index_trimer_dephos </ci>
            </bvar>
            <bvar>
              <ci> k_Dephos_C5 </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_S4_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> index_trimer_dephos </ci>
              <ci> k_Dephos_C5 </ci>
              <ci> pS2_pS2_S4_n </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction46" name="Function for reaction46_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S4_export_from_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> S4_import_to_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> S4_total_C5 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_S4 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> S4_total_C5 </ci>
                <apply>
                  <plus/>
                  <apply>
                    <times/>
                    <ci> S4_import_to_nuc_C5 </ci>
                    <ci> kdeg_S4 </ci>
                  </apply>
                  <apply>
                    <times/>
                    <ci> S4_export_from_nuc_C5 </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_C5 </ci>
                </apply>
                <ci> S4_export_from_nuc_C5 </ci>
                <ci> kdeg_S4 </ci>
              </apply>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction22" name="Function for reaction22_7">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> Active_Rec </ci>
            </bvar>
            <bvar>
              <ci> index_active_Rec_internalize_C5 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R1_C5 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Active_Rec </ci>
              <ci> index_active_Rec_internalize_C5 </ci>
              <ci> k_in_R1_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction47" name="Function for reaction47_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> R1_total_C5 </ci>
            </bvar>
            <bvar>
              <ci> index_k_out_1_relative_speed_C5 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R1_C5 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_R1 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> R1_total_C5 </ci>
                <ci> k_in_R1_C5 </ci>
                <apply>
                  <power/>
                  <ci> kdeg_R1 </ci>
                  <cn type="integer"> 2 </cn>
                </apply>
              </apply>
              <apply>
                <plus/>
                <apply>
                  <times/>
                  <ci> k_in_R1_C5 </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_C5 </ci>
                  <ci> k_in_R1_C5 </ci>
                  <ci> kdeg_R1 </ci>
                </apply>
              </apply>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction36" name="Function for reaction36_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S2_export_from_nuc_C5 </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_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction45" name="Function for reaction45_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S2_export_from_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> S2_import_to_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> S2_total_C5 </ci>
            </bvar>
            <bvar>
              <ci> kdeg_S2 </ci>
            </bvar>
            <apply>
              <divide/>
              <apply>
                <times/>
                <ci> S2_total_C5 </ci>
                <apply>
                  <plus/>
                  <apply>
                    <times/>
                    <ci> S2_import_to_nuc_C5 </ci>
                    <ci> kdeg_S2 </ci>
                  </apply>
                  <apply>
                    <times/>
                    <ci> S2_export_from_nuc_C5 </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_C5 </ci>
                </apply>
                <ci> S2_export_from_nuc_C5 </ci>
                <ci> kdeg_S2 </ci>
              </apply>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction21" name="Function for reaction21_7">
        <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_C5 </ci>
            </bvar>
            <bvar>
              <ci> k_in_R2_C5 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> TGFb_R2_endo </ci>
              <ci> index_k_out_2_relative_speed_C5 </ci>
              <ci> k_in_R2_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction35" name="Function for reaction35_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S2_c </ci>
            </bvar>
            <bvar>
              <ci> S2_import_to_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> cyt </ci>
            </bvar>
            <apply>
              <times/>
              <ci> cyt </ci>
              <ci> S2_c </ci>
              <ci> S2_import_to_nuc_C5 </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction51" name="Function for reaction51_7">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> K_mran </ci>
            </bvar>
            <bvar>
              <ci> S7KD </ci>
            </bvar>
            <bvar>
              <ci> hill_fact1 </ci>
            </bvar>
            <bvar>
              <ci> k_induced_S7_production_C5 </ci>
            </bvar>
            <bvar>
              <ci> mRNA_prod_C5 </ci>
            </bvar>
            <bvar>
              <ci> pS2_pS2_S4_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> S7KD </ci>
              <apply>
                <plus/>
                <ci> mRNA_prod_C5 </ci>
                <apply>
                  <divide/>
                  <apply>
                    <times/>
                    <ci> k_induced_S7_production_C5 </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_reaction40" name="Function for reaction40_8">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> S2_export_from_nuc_C5 </ci>
            </bvar>
            <bvar>
              <ci> nuc </ci>
            </bvar>
            <bvar>
              <ci> pS2_n </ci>
            </bvar>
            <apply>
              <times/>
              <ci> nuc </ci>
              <ci> S2_export_from_nuc_C5 </ci>
              <ci> pS2_n </ci>
            </apply>
          </lambda>
        </math>
      </functionDefinition>
      <functionDefinition id="Function_for_reaction53" name="Function for reaction53_5">
        <math xmlns="http://www.w3.org/1998/Math/MathML">
          <lambda>
            <bvar>
              <ci> Smad7mRNA </ci>
            </bvar>
            <bvar>
              <ci> k_S7_protein_C5 </ci>
            </bvar>
            <apply>
              <times/>
              <ci> Smad7mRNA </ci>
              <ci> k_S7_protein_C5 </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_reaction33_2" name="Function for reaction33_2">
        <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_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>
    </listOfFunctionDefinitions>
    <listOfUnitDefinitions>
      <unitDefinition id="time" name="time">
        <listOfUnits>
          <unit kind="second" exponent="1" scale="0" multiplier="60"/>
        </listOfUnits>
      </unitDefinition>
      <unitDefinition id="substance" name="substance">
        <listOfUnits>
          <unit kind="item" exponent="1" scale="0" multiplier="1"/>
        </listOfUnits>
      </unitDefinition>
    </listOfUnitDefinitions>
    <listOfCompartments>
      <compartment id="cyt" name="cyt" spatialDimensions="3" size="2" constant="true"/>
      <compartment id="nuc" name="nuc" spatialDimensions="3" size="1" constant="true"/>
    </listOfCompartments>
    <listOfSpecies>
      <species id="TGFb_R1_surface" name="TGFb_R1_surface" compartment="cyt" initialConcentration="43.0322317779353" boundaryCondition="false" constant="false"/>
      <species id="TGFb_R2_surface" name="TGFb_R2_surface" compartment="cyt" initialConcentration="12.2483900146123" boundaryCondition="false" constant="false"/>
      <species id="TGFb_R1_endo" name="TGFb_R1_endo" compartment="cyt" initialConcentration="26.7136238297454" boundaryCondition="false" constant="false"/>
      <species id="TGFb_R2_endo" name="TGFb_R2_endo" compartment="cyt" initialConcentration="42.101174023717" boundaryCondition="false" constant="false"/>
      <species metaid="COPASI0" id="TGFb" name="TGFb" compartment="cyt" initialConcentration="100" boundaryCondition="false" constant="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="#COPASI0">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-09-07T17:10:26Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
      </species>
      <species id="TGFb_In" name="TGFb_In" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="Active_R2" name="Active_R2" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="Active_Rec" name="Active_Rec" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="Active_Rec_endo" name="Active_Rec_endo" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="Inactive_Rec" name="Inactive_Rec" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="pS2_c" name="pS2_c" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="S2_c" name="S2_c" compartment="cyt" initialConcentration="349.010042545924" boundaryCondition="false" constant="false"/>
      <species id="S4_c" name="S4_c" compartment="cyt" initialConcentration="270.374765181883" boundaryCondition="false" constant="false"/>
      <species id="pS2_pS2_S4_c" name="pS2_pS2_S4_c" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="pS2_pS2_pS2_c" name="pS2_pS2_pS2_c" compartment="cyt" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="Smad7mRNA" name="Smad7mRNA" compartment="cyt" initialConcentration="0.0302530110695863" boundaryCondition="false" constant="false"/>
      <species id="Smad7mRNA1" name="Smad7mRNA1" compartment="nuc" initialConcentration="0.196832614743574" boundaryCondition="false" constant="false"/>
      <species id="S7" name="S7" compartment="cyt" initialConcentration="3.22452342477777" boundaryCondition="false" constant="false"/>
      <species id="pS2_n" name="pS2_n" compartment="nuc" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="pS2_pS2_S4_n" name="pS2_pS2_S4_n" compartment="nuc" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="pS2_pS2_pS2_n" name="pS2_pS2_pS2_n" compartment="nuc" initialConcentration="0" boundaryCondition="false" constant="false"/>
      <species id="S2_n" name="S2_n" compartment="nuc" initialConcentration="88.9884765796576" boundaryCondition="false" constant="false"/>
      <species id="S4_n" name="S4_n" compartment="nuc" initialConcentration="44.5969227407424" boundaryCondition="false" constant="false"/>
    </listOfSpecies>
    <listOfParameters>
      <parameter metaid="COPASI2" id="K_mran" name="K_mran" value="223.586" constant="true">
        <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>2017-10-17T17:56:44Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
      </parameter>
      <parameter id="R1_total_C5" name="R1_total_C5" value="69.7458556076807" constant="true"/>
      <parameter id="R2_total_C5" name="R2_total_C5" value="54.3495640383293" constant="true"/>
      <parameter id="S2_export_from_nuc_C5" name="S2_export_from_nuc_C5" value="3.7363363993623" constant="true"/>
      <parameter id="S2_import_to_nuc_C5" name="S2_import_to_nuc_C5" value="0.476399803993742" constant="true"/>
      <parameter id="S2_total_C5" name="S2_total_C5" value="437.998519125582" constant="true"/>
      <parameter id="S4_export_from_nuc_C5" name="S4_export_from_nuc_C5" value="0.393125479133945" constant="true"/>
      <parameter id="S4_import_to_nuc_C5" name="S4_import_to_nuc_C5" value="0.0328180446781866" constant="true"/>
      <parameter id="S4_total_C5" name="S4_total_C5" value="314.971687922625" constant="true"/>
      <parameter id="S7KD" name="S7KD" value="1" constant="true"/>
      <parameter id="Trimer_import_to_nuc" name="Trimer_import_to_nuc" value="0.144035002432848" constant="true"/>
      <parameter id="export_cytoplasm" name="export_cytoplasm" value="0.0304372961307751" constant="true"/>
      <parameter id="hill_fact1" name="hill_fact1" value="3.98630224594983" constant="true"/>
      <parameter id="index_active_Rec_internalize_C5" name="index_active_Rec_internalize_C5" value="0.605233070925726" constant="true"/>
      <parameter id="index_induced_R2_deg" name="index_induced_R2_deg" value="1.00037776866312" constant="true"/>
      <parameter id="index_induced_ligand_deg" name="index_induced_ligand_deg" value="2.72106513634098" constant="true"/>
      <parameter id="index_k_out_1_relative_speed_C5" name="index_k_out_1_relative_speed_C5" value="1.13328586042914" constant="true"/>
      <parameter id="index_k_out_2_relative_speed_C5" name="index_k_out_2_relative_speed_C5" value="0.289478285991122" constant="true"/>
      <parameter id="index_kb_R1" name="index_kb_R1" value="1.61290474569122" constant="true"/>
      <parameter id="index_kb_R2" name="index_kb_R2" value="8.70498854136694" constant="true"/>
      <parameter id="index_kb_homotrimer" name="index_kb_homotrimer" value="0.0163921522930962" constant="true"/>
      <parameter id="index_kf_homotrimer" name="index_kf_homotrimer" value="4.4857919268227" constant="true"/>
      <parameter id="index_seq_kb" name="index_seq_kb" value="0.000865131944828012" constant="true"/>
      <parameter id="index_trimer_dephos" name="index_trimer_dephos" value="2.61013820571304" constant="true"/>
      <parameter metaid="COPASI3" id="k_Dephos_C5" name="k_Dephos_C5" value="0.195326548276397" constant="true">
        <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>2017-10-17T17:56:38Z</dcterms:W3CDTF>
                  </rdf:Description>
                </dcterms:created>
              </rdf:Description>
            </rdf:RDF>
          </COPASI>
        </annotation>
      </parameter>
      <parameter id="k_S7_protein_C5" name="k_S7_protein_C5" value="0.109145201434479" constant="true"/>
      <parameter id="k_disso_Active_Rec" name="k_disso_Active_Rec" value="0.00103940411358367" constant="true"/>
      <parameter id="k_in_R1_C5" name="k_in_R1_C5" value="0.122822733556779" constant="true"/>
      <parameter id="k_in_R2_C5" name="k_in_R2_C5" value="0.690292883004163" constant="true"/>
      <parameter id="k_induced_S7_production_C5" name="k_induced_S7_production_C5" value="2.4999911030393" constant="true"/>
      <parameter id="k_medium" name="k_medium" value="2000000" constant="true"/>
      <parameter id="k_phosphorylation" name="k_phosphorylation" value="0.0701560191772152" constant="true"/>
      <parameter id="kb_trimmer" name="kb_trimmer" value="1.6077346670684" constant="true"/>
      <parameter id="kdeg_R1" name="kdeg_R1" value="0.0586584495713968" constant="true"/>
      <parameter id="kdeg_R2" name="kdeg_R2" value="0.0010003937382472" constant="true"/>
      <parameter id="kdeg_S2" name="kdeg_S2" value="0.000514084012175461" constant="true"/>
      <parameter id="kdeg_S4" name="kdeg_S4" value="0.00480202699360057" constant="true"/>
      <parameter id="kdeg_S7" name="kdeg_S7" value="0.00102401829734485" constant="true"/>
      <parameter id="kf_R1_activation" name="kf_R1_activation" value="4.98548548076033" constant="true"/>
      <parameter id="kf_R2_activation" name="kf_R2_activation" value="4.95559496701657" constant="true"/>
      <parameter id="kf_Seq_S7_Rec" name="kf_Seq_S7_Rec" value="0.882455038106022" constant="true"/>
      <parameter id="kf_trimmer" name="kf_trimmer" value="4.81424700307387" constant="true"/>
      <parameter id="kin_deg_Ligand" name="kin_deg_Ligand" value="0.720182234635314" constant="true"/>
      <parameter id="kmRNA1deg_S7" name="kmRNA1deg_S7" value="0.00523181439900629" constant="true"/>
      <parameter id="kmRNAdeg_S7" name="kmRNAdeg_S7" value="0.0990158065483902" constant="true"/>
      <parameter id="kout_deg_Ligand_100pM" name="kout_deg_Ligand_100pM" value="0.00036189622" constant="true"/>
      <parameter id="mRNA_prod_C5" name="mRNA_prod_C5" value="0.00702084429115441" constant="true"/>
      <parameter metaid="COPASI1" id="NUC_CYT_SMAD2" name="NUC/CYT SMAD2" value="0.254973971323327" constant="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="#COPASI1">
                <dcterms:created>
                  <rdf:Description>
                    <dcterms:W3CDTF>2017-09-07T17:07:52Z</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_C5 </ci>
              <ci> kdeg_R1 </ci>
              <apply>
                <plus/>
                <ci> kdeg_R1 </ci>
                <apply>
                  <times/>
                  <ci> index_k_out_1_relative_speed_C5 </ci>
                  <ci> k_in_R1_C5 </ci>
                </apply>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R1_C5 </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_C5 </ci>
                <ci> k_in_R1_C5 </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_C5 </ci>
              <ci> kdeg_R2 </ci>
              <apply>
                <plus/>
                <ci> kdeg_R2 </ci>
                <apply>
                  <times/>
                  <ci> index_k_out_2_relative_speed_C5 </ci>
                  <ci> k_in_R2_C5 </ci>
                </apply>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R2_C5 </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_C5 </ci>
                <ci> k_in_R2_C5 </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_C5 </ci>
              <ci> k_in_R1_C5 </ci>
              <ci> kdeg_R1 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R1_C5 </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_C5 </ci>
                <ci> k_in_R1_C5 </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_C5 </ci>
              <ci> k_in_R2_C5 </ci>
              <ci> kdeg_R2 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <ci> k_in_R2_C5 </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_C5 </ci>
                <ci> k_in_R2_C5 </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_C5 </ci>
              <apply>
                <plus/>
                <ci> S2_export_from_nuc_C5 </ci>
                <ci> kdeg_S2 </ci>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S2_import_to_nuc_C5 </ci>
              </apply>
              <ci> S2_export_from_nuc_C5 </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_C5 </ci>
              <apply>
                <plus/>
                <ci> S4_export_from_nuc_C5 </ci>
                <ci> kdeg_S4 </ci>
              </apply>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S4_import_to_nuc_C5 </ci>
              </apply>
              <ci> S4_export_from_nuc_C5 </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_C5 </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_C5 </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_C5 </ci>
              <ci> mRNA_prod_C5 </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_C5 </ci>
              <ci> S2_import_to_nuc_C5 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S2_import_to_nuc_C5 </ci>
              </apply>
              <ci> S2_export_from_nuc_C5 </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_C5 </ci>
              <ci> S4_import_to_nuc_C5 </ci>
            </apply>
            <apply>
              <plus/>
              <apply>
                <times/>
                <cn type="integer"> 2 </cn>
                <ci> S4_import_to_nuc_C5 </ci>
              </apply>
              <ci> S4_export_from_nuc_C5 </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_0 </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_0 </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_0 </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_0 </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_0 </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_0 </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_0 </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_0 </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_0 </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_0 </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_C5 </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_C5 </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 </ci>
                <ci> TGFb_R1_endo </ci>
                <ci> index_k_out_1_relative_speed_C5 </ci>
                <ci> k_in_R1_C5 </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 </ci>
                <ci> TGFb_R2_endo </ci>
                <ci> index_k_out_2_relative_speed_C5 </ci>
                <ci> k_in_R2_C5 </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 </ci>
                <ci> Active_Rec </ci>
                <ci> index_active_Rec_internalize_C5 </ci>
                <ci> k_in_R1_C5 </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 </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 </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 </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 </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 </ci>
              <ci> S2_c </ci>
              <ci> S2_import_to_nuc_C5 </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 </ci>
              <ci> S2_export_from_nuc_C5 </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 </ci>
              <ci> S4_c </ci>
              <ci> S4_import_to_nuc_C5 </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 </ci>
              <ci> S4_export_from_nuc_C5 </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 </ci>
              <ci> S2_import_to_nuc_C5 </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 </ci>
              <ci> S2_export_from_nuc_C5 </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_C5 </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 </ci>
                <ci> index_trimer_dephos </ci>
                <ci> k_Dephos_C5 </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 </ci>
                <ci> S2_export_from_nuc_C5 </ci>
                <ci> S2_import_to_nuc_C5 </ci>
                <ci> S2_total_C5 </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 </ci>
                <ci> S4_export_from_nuc_C5 </ci>
                <ci> S4_import_to_nuc_C5 </ci>
                <ci> S4_total_C5 </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 </ci>
                <ci> R1_total_C5 </ci>
                <ci> index_k_out_1_relative_speed_C5 </ci>
                <ci> k_in_R1_C5 </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 </ci>
                <ci> R2_total_C5 </ci>
                <ci> index_k_out_2_relative_speed_C5 </ci>
                <ci> k_in_R2_C5 </ci>
                <ci> kdeg_R2 </ci>
              </apply>
            </apply>
          </math>
        </kineticLaw>
      </reaction>
      <reaction id="reaction51" name="reaction51" reversible="false">
        <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 </ci>
                <ci> K_mran </ci>
                <ci> S7KD </ci>
                <ci> hill_fact1 </ci>
                <ci> k_induced_S7_production_C5 </ci>
                <ci> mRNA_prod_C5 </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 </ci>
                <ci> Smad7mRNA </ci>
                <ci> k_S7_protein_C5 </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>
