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Molecule Parameter List for IP4-3K

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

IP4-3K 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	1

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
NonOsc_Ca_ IP3metabolism	31	Network	MIPP,  CaMKII,  CaM,   PKC,  IP3-3K,  CaRegulation,   Gq,  PLCbeta,  134_dephos,   145_dephos,  IP4-system,  IHP-system,   1345_dephos
This network models detailed metabolism of Ins(145)P3, integrated with GPCR mediated PLCbeta activation and Ca release by the InsP3 receptor in the neuron. It is similar to the NonOsc_Ca_IP3metab model (accession 23) except that some enzymes have been modified to have reversible kinetics rather than Michaelis-Menten kinetics. These modified enzymes belong to the groups: IP4-system, IP3-3K, 145_dephos and 134_dephos. Mishra J, Bhalla US. Biophys J. 2002 Sep;83(3):1298-316.

IP4-3K acting as a Molecule in  NonOsc_Ca_IP3metabolism Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
IP4-3K	NonOsc_Ca_ IP3metabolism Accession No. : 31	IP4-system Pathway No. : 154	0.0048	1000	No
Ins(1456)P4 3kinase from Stephens et al, Biochem J 249; 1988: 283-92

IP4-3K acting as a Substrate in a reaction in  NonOsc_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
ip4-3k-on	NonOsc_Ca_ IP3metabolism Accession No. : 31	IP4-system Pathway No. : 154	53.7501 (uM^-1 s^-1)	17.2 (s^-1)	Kd(bf) = 0.32(uM)	-	Substrate IP4(1456) IP4-3K Product ip4_3k_cmplx
Rates derived from Km for enzyme: Stephens et al, Biochem J 249; 1988.

IP4-3K acting as a Product in a reaction in  NonOsc_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
ip4-3k-off	NonOsc_Ca_ IP3metabolism Accession No. : 31	IP4-system Pathway No. : 154	4.3 (s^-1)	0.2687 (uM^-1 s^-1)	Kd(cb) = 0.0625(uM)	-	Substrate ip4_3k_cmplx Product IP4-3K IP5(13456)
Kf = Vmax for enzyme: Stephens et al, Biochem J 249; 1988. Kb ascertained from dG calculations for equilibrium conditions.