BAIT

PPP2CA

PP2Ac, PP2CA, PP2Calpha, RP-C
protein phosphatase 2, catalytic subunit, alpha isozyme
Homo sapiens
PREY

PAK1

PAKalpha
p21 protein (Cdc42/Rac)-activated kinase 1
Homo sapiens

Biochemical Activity (Dephosphorylation)

An interaction is inferred from the biochemical effect of one protein upon another, for example, GTP-GDP exchange activity or phosphorylation of a substrate by a kinase. The bait protein executes the activity on the substrate hit protein. A Modification value is recorded for interactions of this type with the possible values Phosphorylation, Ubiquitination, Sumoylation, Dephosphorylation, Methylation, Prenylation, Acetylation, Deubiquitination, Proteolytic Processing, Glucosylation, Nedd(Rub1)ylation, Deacetylation, No Modification, Demethylation.

Publication

PAK is regulated by PI3K, PIX, CDC42, and PP2Calpha and mediates focal adhesion turnover in the hyperosmotic stress-induced p38 pathway.

Chan PM, Lim L, Manser E

Fractionation of brain extracts and functional biochemical assays identified PP2Calpha, a serine/threonine phosphatase, as the major biochemical activity inhibiting PAK1. PP2Calpha dephosphorylated PAK1 and p38, both of which were activated upon hyperosmotic shock with the same kinetics. In comparison to growth factors, hyperosmolality was a more potent activator of PAK1. Therefore we characterize the PAK signaling pathway in the hyperosmotic ... [more]

J. Biol. Chem. Sep. 05, 2008; 283(36);24949-61 [Pubmed: 18586681]

Throughput

  • Low Throughput

Curated By

  • BioGRID