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Molecule Parameter List for CaM_dash_Ca2 | The statistics table lists the distribution of a molecule acting either as a substrate, product, enzyme or as a molecule within the network. The text color of a molecule is highlighted by color. | Statistics | Accession and Pathway Details | |
Accession Name | Accession No. | Accession Type | Pathway Link | CaMKIV_submodel | 93 | Network | kinetics, compartment_1 | Calcium-calmodulin dependent protein kinase IV (CaMKIV) pathway is one of the sub-model in signaling cascade regulating mRNA synthesis |
CaM_dash_Ca2 acting as a Molecule in CaMKIV_submodel Network
Name | Accession Name | Pathway Name | Initial Conc. (uM) | Volume (fL) | Buffered | CaM_dash_Ca2 | CaMKIV_submodel Accession No. : 93 | kinetics Pathway No. : 1110 | 0 | 1000 | No | This is the intermediate where the TR2 end (the high-affinity end) has bound the Ca but the TR1 end has not. |
CaM_dash_Ca2 acting as a Substrate in a reaction in CaMKIV_submodel Network
Kd is calculated only for second order reactions, like nA+nB <->nC or nA<->nC+nD, where n is number and A,B,C,D are molecules, where as for first order reactions Keq is calculated.
Kd for higher order reaction are not consider. |
Name | Accession Name | Pathway Name | Kf | Kb | Kd | tau | Reagents | CaM_dash_Ca2_ dash_bind_dash_ Ca | CaMKIV_submodel Accession No. : 93 | kinetics Pathway No. : 1110 | 3.6001 (uM^-1 s^-1) | 10 (s^-1) | Kd(bf) = 2.7777(uM) | - | Substrate Ca CaM_dash_Ca2
Product CaM_dash_Ca3
| K3 = 21.5, K4 = 2.8. Assuming that the K4 step happens first, we get kb/kf = 2.8 uM = 1.68e6 so kf =6e-6 assuming kb = 10 |
CaM_dash_Ca2 acting as a Product in a reaction in CaMKIV_submodel Network
Kd is calculated only for second order reactions, like nA+nB <->nC or nA<->nC+nD, where n is number and A,B,C,D are molecules, where as for first order reactions Keq is calculated.
Kd for higher order reaction are not consider. |
Name | Accession Name | Pathway Name | Kf | Kb | Kd | tau | Reagents | CaM_dash_Ca_ dash_bind_dash_ Ca | CaMKIV_submodel Accession No. : 93 | kinetics Pathway No. : 1110 | 8.4846 (uM^-1 s^-1) | 8.4853 (s^-1) | Kd(bf) = 1.0001(uM) | - | Substrate Ca CaM_dash_Ca
Product CaM_dash_Ca2
| Lets use the fast rate consts here. Since the rates are so different, I am not sure whether the order is relevant. These correspond to the TR2C fragment. We use the Martin et al rates here, plus the Drabicowski binding consts. All are scaled by 3X to cell temp. kf = 2e-10 kb = 72 Stemmer & Klee: K1=.9, K2=1.1. Assume 1.0uM for both. kb/kf=3.6e11. If kb=72, kf = 2e-10 (Exactly the same !) 19 May 2006. Splitting the old CaM-TR2-bind-Ca reaction into two steps, each binding 1 Ca. This improves numerical stability and is conceptually better too. Overall rates are the same, so each kf and kb is the square root of the earlier ones. So kf = 1.125e-4, kb = 8.4853 |
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