DOQCS database

NCBS Home page

Accession List

Pathway List

Authorized Users

Help

News archives

Enter a Search String

Special character and space not allowed in the query term. Search string should be at least 2 characters long.

Molecule Parameter List for PPhosphatase2A

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

*PPhosphatase2A* 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	4	0	0	0	0

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
mRNA synthesis	94	Network	kinetics, compartment_1, compartment_2
The model consists of three major pathways: Calcium-calmodulin dependent protein kinase IV (CaMKIV), Mitogen-activated protein kinase (MAPK) and Protein Phosphatase 1 (PP1). Each of these converged on CREB activation. We also modeled further interactions with Transducer of regulated CREB activity 1 (TORC1) and the protein kinase A (PKA) pathway.

PPhosphatase2A acting as a Molecule in mRNA synthesis Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
PPhosphatase2A	mRNA synthesis Accession No. : 94	kinetics Pathway No. : 1112	1	1000	No
Refs: Pato et al Biochem J 293:35-41(93); Takai&Mieskes Biochem J 275:233-239 k1=1.46e-4, k2=1000,k3=250. these use kcat values for calponin. Also, units of kcat may be in min! revert to Vmax base: k3=6, k2=25,k1=3.3e-6 or 6,6,1e-6 CoInit assumed 0.1 uM. See NOTES for MAPK_Ras50.g. CoInit now 0.08 Sep 17 1997: Raise CoInt 1.4x to 0.224, see parm searches from jun 96 on.

PPhosphatase2A acting as an Enzyme in mRNA synthesis Network

	Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
1	PPhosphatase2A / craf_dash_deph	mRNA synthesis Accession No. : 94	kinetics Pathway No. : 1112	15.6568	6	4	explicit E-S complex	Substrate craf_dash_1_ star Product craf_dash_1
	See parent PPhosphatase2A for parms
2	PPhosphatase2A / MAPKK_dash_deph	mRNA synthesis Accession No. : 94	kinetics Pathway No. : 1112	15.6568	6	4	explicit E-S complex	Substrate MAPKK_star Product MAPKK_dash_ser
	See: Kyriakis et al Nature 358 pp 417-421 1992 Ahn et al Curr Op Cell Biol 4:992-999 1992 for this pathway. See parent PPhosphatase2A for parms.
3	PPhosphatase2A / MAPKK_dash_ deph_dash_ser	mRNA synthesis Accession No. : 94	kinetics Pathway No. : 1112	15.6568	6	4	explicit E-S complex	Substrate MAPKK_dash_ser Product MAPKK

4	PPhosphatase2A / craf_star_star_ dash_deph	mRNA synthesis Accession No. : 94	kinetics Pathway No. : 1112	15.6568	6	4	explicit E-S complex	Substrate craf_dash_1_ star_star Product craf_dash_1_ star
	Ueki et al JBC 269(22) pp 15756-15761 1994 show hyperphosphorylation of craf, so this is there to dephosphorylate it. Identity of phosphatase is not known to me, but it may be PP2A like the rest, so I have made it so.

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.