- Author:
- Shelley Fong <s.fong@auckland.ac.nz>
- Date:
- 2021-10-01 13:47:45+13:00
- Desc:
- Change stoichiometry to separate G from R, and to conserve R in product of ACT reaction
- Permanent Source URI:
- https://models.cellml.org/workspace/6cb/rawfile/ef307199e53616e395685c7de8e2373b9bd8654b/BG_GsProtein.cellml
<?xml version='1.0' encoding='UTF-8'?>
<model name="BG_GsProtein" xmlns="http://www.cellml.org/cellml/1.1#" xmlns:cellml="http://www.cellml.org/cellml/1.1#" xmlns:xlink="http://www.w3.org/1999/xlink">
<import xlink:href="units_and_constants/units_BG.cellml">
<units name="per_sec" units_ref="per_sec"/>
<units name="J_per_K_per_mol" units_ref="J_per_K_per_mol"/>
<units name="C_per_mol" units_ref="C_per_mol"/>
<units name="fmol" units_ref="fmol"/>
<units name="fmol_per_L" units_ref="fmol_per_L"/>
<units name="fmol_per_L_per_sec" units_ref="fmol_per_L_per_sec"/>
<units name="per_sec_per_fmol_per_L" units_ref="per_sec_per_fmol_per_L"/>
<units name="per_fmol" units_ref="per_fmol"/>
<units name="fmol_per_sec" units_ref="fmol_per_sec"/>
<units name="J_per_mol" units_ref="J_per_mol"/>
<units name="mM" units_ref="mM"/>
<units name="uM" units_ref="uM"/>
<units name="mM_per_sec" units_ref="mM_per_sec"/>
<units name="uM_per_sec" units_ref="uM_per_sec"/>
<units name="pL" units_ref="pL"/>
<units name="m_to_u" units_ref="m_to_u"/>
</import>
<import xlink:href="units_and_constants/constants_BG.cellml">
<component component_ref="constants" name="constants"/>
</import>
<component name="environment">
<variable name="time" public_interface="out" units="second"/>
<variable initial_value="0" name="q_LR_global" units="fmol"/>
<variable name="c_L" public_interface="in" units="uM"/>
<variable name="c_R" public_interface="in" units="uM"/>
<variable name="c_G" public_interface="in" units="uM"/>
<variable name="c_LR" public_interface="in" units="uM"/>
<variable name="c_a_GTP" public_interface="in" units="uM"/>
<variable name="c_beta_gamma" public_interface="in" units="uM"/>
<variable name="c_a_GDP" public_interface="in" units="uM"/>
</component>
<component name="GsProtein_parameters">
<variable initial_value="2.99219e-07" name="kappa_bind" public_interface="out" units="fmol_per_sec"/>
<variable initial_value="3.05365e-06" name="kappa_act" public_interface="out" units="fmol_per_sec"/>
<variable initial_value="0.0125026" name="kappa_hyd" public_interface="out" units="fmol_per_sec"/>
<variable initial_value="2955.93" name="kappa_reassoc" public_interface="out" units="fmol_per_sec"/>
<variable initial_value="9.71522e+07" name="K_L" public_interface="out" units="per_fmol"/>
<variable initial_value="0.101999" name="K_R" public_interface="out" units="per_fmol"/>
<variable initial_value="1.18996e-05" name="K_G" public_interface="out" units="per_fmol"/>
<variable initial_value="9.71522e+07" name="K_LR" public_interface="out" units="per_fmol"/>
<variable initial_value="1.86008" name="K_a_GTP" public_interface="out" units="per_fmol"/>
<variable initial_value="0.148776" name="K_beta_gamma" public_interface="out" units="per_fmol"/>
<variable initial_value="0.0023251" name="K_a_GDP" public_interface="out" units="per_fmol"/>
</component>
<component name="GsProtein">
<variable name="time" public_interface="in" units="second"/>
<!-- Physical parameters-->
<variable name="R" public_interface="in" units="J_per_K_per_mol"/>
<variable name="T" public_interface="in" units="kelvin"/>
<!-- 21july FKC with all 3 constraints, and detailed bal for ksig4m and for scheme2 kP2p. Merged GsabyGDP into G. R and LR in scheme 4. new constraint of R + L to LR using Gibbs free energy -->
<variable name="kappa_bind" public_interface="in" units="fmol_per_sec"/>
<variable name="kappa_act" public_interface="in" units="fmol_per_sec"/>
<variable name="kappa_hyd" public_interface="in" units="fmol_per_sec"/>
<variable name="kappa_reassoc" public_interface="in" units="fmol_per_sec"/>
<variable name="K_L" public_interface="in" units="per_fmol"/>
<variable name="K_R" public_interface="in" units="per_fmol"/>
<variable name="K_G" public_interface="in" units="per_fmol"/>
<variable name="K_LR" public_interface="in" units="per_fmol"/>
<variable name="K_a_GTP" public_interface="in" units="per_fmol"/>
<variable name="K_beta_gamma" public_interface="in" units="per_fmol"/>
<variable name="K_a_GDP" public_interface="in" units="per_fmol"/>
<!-- States (and initial conditions)
8jul21 original kinetic concs + equal division of enzyme states-->
<variable initial_value="0.000167285" name="q_L" public_interface="out" units="fmol"/>
<variable initial_value="1.697e-06" name="q_LR" public_interface="out" units="fmol"/>
<variable initial_value="0.000219725" name="q_R" public_interface="out" units="fmol"/>
<variable initial_value="0.145305" name="q_G" public_interface="out" units="fmol"/>
<variable initial_value="0.0009519" name="q_a_GTP" public_interface="out" units="fmol"/>
<variable initial_value="0.00097622" name="q_beta_gamma" public_interface="out" units="fmol"/>
<variable initial_value="2.44948e-05" name="q_a_GDP" public_interface="out" units="fmol"/>
<variable name="q_LR_global" public_interface="in" units="fmol"/>
<!-- Bond variables-->
<variable name="vBind" units="fmol_per_sec"/>
<variable name="vAct" units="fmol_per_sec"/>
<variable name="vHyd" units="fmol_per_sec"/>
<variable name="vReassoc" units="fmol_per_sec"/>
<variable name="mu_L" units="J_per_mol"/>
<variable name="mu_R" units="J_per_mol"/>
<variable name="mu_G" units="J_per_mol"/>
<variable name="mu_LR" units="J_per_mol"/>
<variable name="mu_a_GTP" units="J_per_mol"/>
<variable name="mu_beta_gamma" units="J_per_mol"/>
<variable name="mu_a_GDP" units="J_per_mol"/>
<!-- Concentrations - for plotting-->
<variable name="c_L" public_interface="out" units="uM"/>
<variable name="c_R" public_interface="out" units="uM"/>
<variable name="c_G" public_interface="out" units="uM"/>
<variable name="c_LR" public_interface="out" units="uM"/>
<variable name="c_a_GTP" public_interface="out" units="uM"/>
<variable name="c_beta_gamma" public_interface="out" units="uM"/>
<variable name="c_a_GDP" public_interface="out" units="uM"/>
<variable initial_value="38.0" name="vol" units="pL"/>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<eq/>
<ci>c_L</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_L</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<ci>c_R</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_R</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<ci>c_G</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_G</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<ci>c_LR</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_LR_global</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<ci>c_a_GTP</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_a_GTP</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<ci>c_beta_gamma</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_beta_gamma</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<ci>c_a_GDP</ci>
<apply>
<divide/>
<apply>
<times/>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
<ci>q_a_GDP</ci>
</apply>
<ci>vol</ci>
</apply>
</apply>
<!-- Constitutive equations-->
<apply>
<eq/>
<ci>mu_L</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_L</ci>
<ci>q_L</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>mu_R</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_R</ci>
<ci>q_R</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>mu_G</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_G</ci>
<ci>q_G</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>mu_LR</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_LR</ci>
<ci>q_LR_global</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>mu_a_GTP</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_a_GTP</ci>
<ci>q_a_GTP</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>mu_beta_gamma</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_beta_gamma</ci>
<ci>q_beta_gamma</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>mu_a_GDP</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
<apply>
<ln/>
<apply>
<times/>
<ci>K_a_GDP</ci>
<ci>q_a_GDP</ci>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>vBind</ci>
<apply>
<times/>
<ci>kappa_bind</ci>
<apply>
<minus/>
<apply>
<exp/>
<apply>
<divide/>
<apply>
<plus/>
<ci>mu_L</ci>
<ci>mu_R</ci>
</apply>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
<apply>
<exp/>
<apply>
<divide/>
<ci>mu_LR</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>vAct</ci>
<apply>
<times/>
<ci>kappa_act</ci>
<apply>
<minus/>
<apply>
<exp/>
<apply>
<divide/>
<ci>mu_LR</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
<apply>
<exp/>
<apply>
<divide/>
<apply>
<plus/>
<ci>mu_a_GTP</ci>
<ci>mu_beta_gamma</ci>
</apply>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>vHyd</ci>
<apply>
<times/>
<ci>kappa_hyd</ci>
<apply>
<minus/>
<apply>
<exp/>
<apply>
<divide/>
<ci>mu_a_GTP</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
<apply>
<exp/>
<apply>
<divide/>
<ci>mu_a_GDP</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
</apply>
</apply>
</apply>
<apply>
<eq/>
<ci>vReassoc</ci>
<apply>
<times/>
<ci>kappa_reassoc</ci>
<apply>
<minus/>
<apply>
<exp/>
<apply>
<divide/>
<apply>
<plus/>
<ci>mu_a_GDP</ci>
<ci>mu_beta_gamma</ci>
</apply>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
<apply>
<exp/>
<apply>
<divide/>
<ci>mu_G</ci>
<apply>
<times/>
<ci>R</ci>
<ci>T</ci>
</apply>
</apply>
</apply>
</apply>
</apply>
</apply>
</math>
<!-- velocity in uM_per_sec-->
<variable name="vAct_kinetic" units="uM_per_sec"/>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<eq/>
<ci>vAct_kinetic</ci>
<apply>
<divide/>
<apply>
<times/>
<ci>vAct</ci>
<cn cellml:units="m_to_u" type="e-notation">1<sep/>3</cn>
</apply>
<ci>vol</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_L</ci>
</apply>
<apply>
<minus/>
<ci>vBind</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_R</ci>
</apply>
<apply>
<minus/>
<ci>vBind</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_G</ci>
</apply>
<apply>
<minus/>
<ci>vReassoc</ci>
<ci>vAct</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_LR</ci>
</apply>
<apply>
<minus/>
<ci>vBind</ci>
<ci>vAct</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_a_GTP</ci>
</apply>
<apply>
<minus/>
<ci>vAct</ci>
<ci>vHyd</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_beta_gamma</ci>
</apply>
<apply>
<minus/>
<ci>vAct</ci>
<ci>vReassoc</ci>
</apply>
</apply>
<apply>
<eq/>
<apply>
<diff/>
<bvar>
<ci>time</ci>
</bvar>
<ci>q_a_GDP</ci>
</apply>
<apply>
<minus/>
<ci>vHyd</ci>
<ci>vReassoc</ci>
</apply>
</apply>
</math>
</component>
<connection>
<map_components component_1="environment" component_2="GsProtein"/>
<map_variables variable_1="time" variable_2="time"/>
<map_variables variable_1="q_LR_global" variable_2="q_LR_global"/>
<map_variables variable_1="c_L" variable_2="c_L"/>
<map_variables variable_1="c_R" variable_2="c_R"/>
<map_variables variable_1="c_G" variable_2="c_G"/>
<map_variables variable_1="c_LR" variable_2="c_LR"/>
<map_variables variable_1="c_a_GTP" variable_2="c_a_GTP"/>
<map_variables variable_1="c_beta_gamma" variable_2="c_beta_gamma"/>
<map_variables variable_1="c_a_GDP" variable_2="c_a_GDP"/>
</connection>
<connection>
<map_components component_1="GsProtein_parameters" component_2="GsProtein"/>
<map_variables variable_1="kappa_bind" variable_2="kappa_bind"/>
<map_variables variable_1="kappa_act" variable_2="kappa_act"/>
<map_variables variable_1="kappa_hyd" variable_2="kappa_hyd"/>
<map_variables variable_1="kappa_reassoc" variable_2="kappa_reassoc"/>
<map_variables variable_1="K_L" variable_2="K_L"/>
<map_variables variable_1="K_R" variable_2="K_R"/>
<map_variables variable_1="K_G" variable_2="K_G"/>
<map_variables variable_1="K_LR" variable_2="K_LR"/>
<map_variables variable_1="K_a_GTP" variable_2="K_a_GTP"/>
<map_variables variable_1="K_beta_gamma" variable_2="K_beta_gamma"/>
<map_variables variable_1="K_a_GDP" variable_2="K_a_GDP"/>
</connection>
<connection>
<map_components component_1="constants" component_2="GsProtein"/>
<map_variables variable_1="R" variable_2="R"/>
<map_variables variable_1="T" variable_2="T"/>
</connection>
</model>
