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Molecule Parameter List for IP6 | 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 | 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. |
IP6 acting as a Molecule in NonOsc_Ca_IP3metabolism Network
| Name | Accession Name | Pathway Name | Initial Conc.
(uM) | Volume
(fL) | Buffered | | IP6 | NonOsc_Ca_
IP3metabolism
Accession No. : 31 | IHP-system
Pathway No. : 155 | 30.0005 | 1000 | No | | Inositol hexakisphosphate Conc from Voglmaier et al, PNAS 93; 1996 |
IP6 acting as a Substrate for an Enzyme in NonOsc_Ca_IP3metabolism Network
Enzyme Molecule /
Enzyme Activity | Accession Name | Pathway Name | Km (uM) | kcat (s^-1) | Ratio | Enzyme Type | Reagents | IP6_K2 /
ip6_k2 | NonOsc_Ca_
IP3metabolism
Accession No. : 31 | IHP-system
Pathway No. : 155 | 2.99999 | 1.633 | 4 | explicit E-S complex | Substrate
IP6
Product
PP-IP5
| | from Saiardi et al, Curr Biol 9; 1999 |
IP6 acting as a Product of an Enzyme in NonOsc_Ca_IP3metabolism Network
Enzyme Molecule /
Enzyme Activity | Accession Name | Pathway Name | Km (uM) | kcat (s^-1) | Ratio | Enzyme Type | Reagents | DIPP1 /
dipp_ip7 | NonOsc_Ca_
IP3metabolism
Accession No. : 31 | IHP-system
Pathway No. : 155 | 0.340006 | 5.1 | 4 | explicit E-S complex | Substrate
PP-IP5
Product
IP6
| | from Safrany et al, EMBO J 17(22); 1998 Vmax represents activity of recombinant human protein which is 20-50 fold greater than activity of the purified rat enzyme |
IP6 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. |
IP6 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 | | ip5-kinase-pase | NonOsc_Ca_
IP3metabolism
Accession No. : 31 | IHP-system
Pathway No. : 155 | 1
(s^-1) | 1.92
(s^-1) | Keq = 1.92(uM) | 0.342sec | Substrate
IP5(13456)
Product
IP6
| | Kf represents InsP5 2-kinase and Kb represents InsP6 2-phosphatase Although InsP5 2-kinases in yeast and plant systems have been characterized (Ives et al, JBC 275; 2000: 36575-83), the mammalian counterpart is still to be worked out. Rates calculated to maintain InsP5 and InsP6 levels |
| Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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