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Molecule Parameter List for CaNAB | 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 |
| CaNAB participated as | Molecule | Sum total of | Enzyme | Substrate of an enzyme | Product of an enzyme | Substrate in Reaction | Product in Reaction | | No. of occurrences | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
Accession and Pathway Details | |
| Accession Name | Accession No. | Accession Type | Pathway Link | AMPAR_CaMKII_
weak_coupling | 65 | Network |
Shared_Object_AMPAR_CaMKII_weak_coupling, CaMKII, CaM,
PP1, PP2B, PP1_PSD,
AMPAR, PKA, AC,
AMPAR_memb, PP1_CaMKII_PSD, CaMKII_PSD | | This is a model of weak coupling between the AMPAR traffikcing bistability, and the CaMKII autophosphorylation bistability. In this model, there are three stable states: Both off, AMPAR on, or both on. The fourth possible state: CaMKII on but AMPAR off, is not truly stable, since over the course of hours the AMPAR also turns on. |
CaNAB acting as a Molecule in AMPAR_CaMKII_weak_coupling Network
| Name | Accession Name | Pathway Name | Initial Conc.
(uM) | Volume
(fL) | Buffered | | CaNAB | AMPAR_CaMKII_
weak_coupling
Accession No. : 65 | PP2B
Pathway No. : 285 | 1 | 0.09 | No | | We assume that the A and B subunits of PP2B are always bound under physiol conditions. Up to 1% of brain protein = 25 uM. I need to work out how it is distributed between cytosolic and particulate fractions. Tallant and Cheung '83 Biochem 22 3630-3635 have conc in many species, average for mammalian brain is around 1 uM. |
CaNAB acting as a Substrate in a reaction in AMPAR_CaMKII_weak_coupling 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 | | Ca-bind-CaNAB | AMPAR_CaMKII_
weak_coupling
Accession No. : 65 | PP2B
Pathway No. : 285 | 10008
(uM^-2 s^-1) | 1
(s^-1) | Kd(af) = 0.01(uM) | - | Substrate
Ca
Ca
CaNAB
Product
CaNAB-Ca2
| | going on the experience with CaM, we put the fast (high affinity) sites first. We only know (Stemmer and Klee) that the affinity is < 70 nM. Assuming 10 nM at first, we get kf = 2.78e-8, kb = 1. Try 20 nM. kf = 7e-9, kb = 1 |
| Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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