DOQCS database

NCBS Home page

Accession List

Pathway List

Authorized Users

Help

News archives

Enter a Search String

Special character and space not allowed in the query term. Search string should be at least 2 characters long.

Molecule Parameter List for IP4-1K

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

*IP4-1K* 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	1	0	0	2	0

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
Osc_Ca_ IP3metabolism	24	Network	MIPP, CaMKII, CaM, PKC, IP3-3K, Gq, PLCbeta, 134_dephos, 145_dephos, IP4-system, IHP-system, 1345_dephos, CaRegulation, Othmer-Tang-model
This network models an oscillatory calcium response to GPCR mediated PLCbeta activation, alongwith detailed InsP3 metabolism in the neuron. It differs from the NonOsc_Ca_IP3metabolism network in the CaRegulation module and in InsP3 receptor kinetics. Details of InsP3 receptor kinetics have been adapted from the Othmer-Tang model for oscillatory Ca dynamics. Mishra J, Bhalla US. Biophys J. 2002 Sep;83(3):1298-316.

IP4-1K acting as a Molecule in Osc_Ca_IP3metabolism Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
IP4-1K	Osc_Ca_ IP3metabolism Accession No. : 24	IP4-system Pathway No. : 129	0.606	1000	No
from Tan et al, JBC 272(4); 1997: 2285-90

IP4-1K acting as an Enzyme in Osc_Ca_IP3metabolism Network

Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
IP4-1K / ip4-1k	Osc_Ca_ IP3metabolism Accession No. : 24	IP4-system Pathway No. : 129	0.359995	0.598	4	explicit E-S complex	Substrate IP4(3456) Product IP5(13456)
from Tan et al, JBC 272; 1997

IP4-1K acting as a Substrate in a reaction in Osc_Ca_IP3metabolism 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	ip5-inhib-1k	Osc_Ca_ IP3metabolism Accession No. : 24	IP4-system Pathway No. : 129	1 (uM^-1 s^-1)	15 (s^-1)	Kd(bf) = 15(uM)	-	Substrate IP4-1K IP5(13456) Product IP5-1Kcmplx
	from Tan et al, JBC 272; 1997
2	ip3-inhib-1k	Osc_Ca_ IP3metabolism Accession No. : 24	IP4-system Pathway No. : 129	1 (uM^-1 s^-1)	0.2 (s^-1)	Kd(bf) = 0.2(uM)	-	Substrate IP3(134) IP4-1K Product IP3-1Kcmplx
	from Tan et al, JBC 272; 1997

Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
This Copyright is applied to ensure that the contents of this database remain freely available. Please see FAQ for details.