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Molecule Parameter List for cAMP-PDE* | 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 | Ajay_Bhalla_
2004_Feedback_
Tuning | 78 | Network |
Shared_Object_Ajay_Bhalla_2004_Feedback_Tuning, PKC, PLA2,
PLCbeta, Gq, MAPK,
Ras, EGFR, Sos,
PLC_g, CaMKII, CaM,
PP1, PP2B, PKA,
AC | | This model is taken from Ajay SM, Bhalla US. Eur J Neurosci. 2004 Nov;20(10):2671-80. This is the feedback model from Figure 8a. |
cAMP-PDE* acting as a Molecule in Ajay_Bhalla_2004_Feedback_Tuning Network
| Name | Accession Name | Pathway Name | Initial Conc.
(uM) | Volume
(fL) | Buffered | | cAMP-PDE* | Ajay_Bhalla_
2004_Feedback_
Tuning
Accession No. : 78 | AC
Pathway No. : 362 | 0 | 1.5 | No | | This form has about 2X activity as plain PDE. See Sette et al JBC 269:28 18271-18274 1994. |
cAMP-PDE* acting as an Enzyme in Ajay_Bhalla_2004_Feedback_Tuning Network
Enzyme Molecule /
Enzyme Activity | Accession Name | Pathway Name | Km (uM) | kcat (s^-1) | Ratio | Enzyme Type | Reagents | cAMP-PDE* /
PDE*
| Ajay_Bhalla_
2004_Feedback_
Tuning
Accession No. : 78 | AC
Pathway No. : 362 | 19.8413 | 20 | 4 | explicit E-S complex | Substrate
cAMP
Product
AMP
| | This form has about twice the activity of the unphosphorylated form. See Sette et al JBC 269:28 18271-18274 1994. We'll ignore cGMP effects for now. |
cAMP-PDE* acting as a Product of an Enzyme in Ajay_Bhalla_2004_Feedback_Tuning Network
cAMP-PDE* acting as a Substrate in a reaction in Ajay_Bhalla_2004_Feedback_Tuning 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 | | dephosph-PDE | Ajay_Bhalla_
2004_Feedback_
Tuning
Accession No. : 78 | AC
Pathway No. : 362 | 0.1
(s^-1) | 0
(s^-1) | - | - | Substrate
cAMP-PDE*
Product
cAMP-PDE
| | The rates for this are poorly constrained. In adipocytes (probably a different PDE) the dephosphorylation is complete within 15 min, but there are no intermediate time points so it could be much faster. Identity of phosphatase etc is still unknown. |
| Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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