VEGFA dimer:p-6Y-VEGFR2 dimer:PI3K phosphorylates PIP2 to PIP3

Stable Identifier
R-HSA-5218819
Type
Reaction
Species
Homo sapiens
Compartment
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PI3-kinase (PI3K) catalyzes the phosphorylation of inositol phospholipids at the 3 position to generate phosphatidylinositol 3,4,5-trisphosphate and phosphatidylinositol 3,4-bisphosphate. PIP2 and PIP3 generated serve as lipid substrates where they recruit guanine nucleotide exchange factors (GEFs) like VAV (Proto-oncogene vav) that catalyze the exchange of GDP for GTP on Rac, activating it (Han et al. 1998). VAV2 acts downstream of VEGF to activate Rac1 (Garretta et al. 2007).

Literature References
PubMed ID Title Journal Year
12660731 The role of PI3K in immune cells

Koyasu, S

Nat Immunol 2003
17199126 Leading-edge research: PtdIns(3,4,5)P3 and directed migration

Franca-Koh, J, Kamimura, Y, Devreotes, PN

Nat. Cell Biol. 2007
Participants
Participant Of
Catalyst Activity
Catalyst Activity
Title
phosphatidylinositol-4,5-bisphosphate 3-kinase activity of VEGFA dimer:p-6Y-VEGFR2 dimer:PI3K/VEGFA:p-6Y-VEGFR2:SH2D2A:p-Y418-SRC-1:p-Y772,Y814-AXL:PI3K [plasma membrane]
Physical Entity
Activity
Orthologous Events
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Created