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Molecule Parameter List for CaM-TR2-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

CaM-TR2-Ca2 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	2	1

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
MAPK_network_ 2003	50	Network	Shared_Object_MAPK_network_2003,  PKC,  PLA2,   PLCbeta,  Gq,  MAPK,   Ras,  EGFR,  Sos,   PLC_g,  CaMKII,  CaM,   PP1,  PP2B,  PKA,   AC
This is a network model of many pathways present at the neuronal synapse. The network has properties of temporal tuning as well as steady-state computational properties. In its default form the network is bistable.Bhalla US Biophys J. 2004 Aug;87(2):745-53

CaM-TR2-Ca2 acting as a Molecule in  MAPK_network_2003 Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
CaM-TR2-Ca2	MAPK_network_ 2003 Accession No. : 50	Shared_Object_ MAPK_network_ 2003 Pathway No. : 206	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-TR2-Ca2 acting as a Substrate in a reaction in  MAPK_network_2003 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
1	CaM-TR2-Ca2-bind -Ca	MAPK_network_ 2003 Accession No. : 50	CaM Pathway No. : 217	3.6 (uM^-1 s^-1)	10 (s^-1)	Kd(bf) = 2.7778(uM)	-	Substrate Ca CaM-TR2-Ca2 Product CaM-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
2	CaM-Ca2-bind-CaN AB	MAPK_network_ 2003 Accession No. : 50	PP2B Pathway No. : 219	0.24 (uM^-1 s^-1)	1 (s^-1)	Kd(bf) = 4.1667(uM)	-	Substrate CaM-TR2-Ca2 CaNAB-Ca4 Product CaMCa2-CANAB
	Disabled. See notes for PP2B7.g

CaM-TR2-Ca2 acting as a Product in a reaction in  MAPK_network_2003 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-TR2-bind-Ca	MAPK_network_ 2003 Accession No. : 50	CaM Pathway No. : 217	72 (uM^-2 s^-1)	72 (s^-1)	Kd(af) = 1(uM)	-	Substrate Ca Ca CaM Product CaM-TR2-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 !)....