PREY

PIK3R1

PI3K, p50alpha, p55alpha, p85alpha
phosphatidylinositol 3-kinase, regulatory subunit, polypeptide 1 (p85 alpha)
GO Process (39)
GO Function (23)
GO Component (11)

Gene Ontology Biological Process

Mus musculus

Affinity Capture-Western

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins.

Publication

Phosphoinositide 3-kinase activates Rac by entering in a complex with Eps8, Abi1, and Sos-1.

Innocenti M, Frittoli E, Ponzanelli I, Falck JR, Brachmann SM, Di Fiore PP, Scita G

Class I phosphoinositide 3-kinases (PI3Ks) are implicated in many cellular responses controlled by receptor tyrosine kinases (RTKs), including actin cytoskeletal remodeling. Within this pathway, Rac is a key downstream target/effector of PI3K. However, how the signal is routed from PI3K to Rac is unclear. One possible candidate for this function is the Rac-activating complex Eps8-Abi1-Sos-1, which possesses Rac-specific guanine nucleotide ... [more]

J. Cell Biol. Jan. 06, 2003; 160(1);17-23 [Pubmed: 12515821]

Throughput

  • Low Throughput

Curated By

  • BioGRID