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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 | AMPAR_CaMKII_ weak_coupling | 65 | Network | Shared_Object_AMPAR_CaMKII_weak_coupling, CaMKII, CaM, PP1, PP2B, PP1_PSD, AMPAR, PKA, AC, AMPAR_memb, PP1_CaMKII_PSD, CaMKII_PSD | This is a model of weak coupling between the AMPAR traffikcing bistability, and the CaMKII autophosphorylation bistability. In this model, there are three stable states: Both off, AMPAR on, or both on. The fourth possible state: CaMKII on but AMPAR off, is not truly stable, since over the course of hours the AMPAR also turns on. |
cAMP-PDE* acting as a Molecule in AMPAR_CaMKII_weak_coupling Network
Name | Accession Name | Pathway Name | Initial Conc. (uM) | Volume (fL) | Buffered | cAMP-PDE* | AMPAR_CaMKII_ weak_coupling Accession No. : 65 | AC Pathway No. : 289 | 0 | 0.09 | 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 AMPAR_CaMKII_weak_coupling Network
Enzyme Molecule / Enzyme Activity | Accession Name | Pathway Name | Km (uM) | kcat (s^-1) | Ratio | Enzyme Type | Reagents | cAMP-PDE* / PDE*
| AMPAR_CaMKII_ weak_coupling Accession No. : 65 | AC Pathway No. : 289 | 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 AMPAR_CaMKII_weak_coupling Network
Enzyme Molecule / Enzyme Activity | Accession Name | Pathway Name | Km (uM) | kcat (s^-1) | Ratio | Enzyme Type | Reagents | PKA-active / phosph-PDE | AMPAR_CaMKII_ weak_coupling Accession No. : 65 | PKA Pathway No. : 288 | 7.50008 | 9 | 4 | explicit E-S complex | Substrate cAMP-PDE
Product cAMP-PDE*
| Same rates as PKA-phosph-I1 |
cAMP-PDE* acting as a Substrate in a reaction in AMPAR_CaMKII_weak_coupling 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 | AMPAR_CaMKII_ weak_coupling Accession No. : 65 | AC Pathway No. : 289 | 0.01 (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 This Copyright is applied to ensure that the contents of this database remain freely available. Please see FAQ for details. |
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