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Molecule Parameter List for Pi | 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 |
| Pi 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 | 0 | 1 |
Accession and Pathway Details | |
| Accession Name | Accession No. | Accession Type | Pathway Link | | RasGTPase | 71 | Pathway |
RasGTPase | | Ras is an important regulator of cell growth in all eukaryotic cells. The model represent hydrolysis of active Ras-bound GTP to give inactive Ras-bound GDP catalyzed by GTPase activating proteins i.e NF1. The inactive Ras-bound GDP turns signalling protein off. |
Pi acting as a Molecule in RasGTPase Network
| Name | Accession Name | Pathway Name | Initial Conc.
(uM) | Volume
(fL) | Buffered | | Pi | RasGTPase
Accession No. : 71 | RasGTPase
Pathway No. : 307 | 0 | 523.6 | No | | Inorganic Phosphate is released (Pi) |
Pi acting as a Product in a reaction in RasGTPase 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 | GTP_
hydrolysis[2] | RasGTPase
Accession No. : 71 | RasGTPase
Pathway No. : 307 | 40
(s^-1) | 0.0001
(uM^-1 s^-1) | Kd(cb) = 0(uM) | - | Substrate
RasGDP-NF1_Pi
Product
Pi
RasGDP_NF1
| | Second step in hydrolysis of GTP bound to Ras is complexed with NF1 - a mammalian GAP Kf = 40 /sec Kb = 108 /M/sec = 1.08e-04 /uM/sec Phillips RA et al 2003 Biochemistry 42: 3956-3965 |
| Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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