Entrez Summary: This gene encodes a Rho-GTPase activating protein, which is specific for the small GTPase family member Rac. Binding of the encoded protein by filamin A targets it to sites of membrane protrusion, where it antognizes Rac. This results in suppression of lamellae formation and promotion of retraction to regulate cell polarity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016].
UniProt Summary: Rho GTPase-activating protein involved in cell polarity, cell morphology and cytoskeletal organization. Acts as a GTPase activator for the Rac-type GTPase by converting it to an inactive GDP-bound state. Controls actin remodeling by inactivating Rac downstream of Rho leading to suppress leading edge protrusion and promotes cell retraction to achieve cellular polarity. Able to suppress RAC1 and CDC42 activity in vitro. Overexpression induces cell rounding with partial or complete disruption of actin stress fibers and formation of membrane ruffles, lamellipodia, and filopodia. Isoform 2 is a vascular cell-specific GAP involved in modulation of angiogenesis. {ECO:0000269|PubMed:15302923, ECO:0000269|PubMed:15611138, ECO:0000269|PubMed:16862148}.
Pfam DomainsGO Terms
Pfam Domains
PH
RhoGAP
GO Terms
cell projection
GTPase activator activity
angiogenesis
regulation of small GTPase mediated signal transduction
cytoskeleton
blood vessel morphogenesis
positive regulation of GTPase activity
focal adhesion
regulation of GTPase activity
blood vessel development
vasculature development
cardiovascular system development
tube morphogenesis
positive regulation of hydrolase activity
tube development
circulatory system development
anatomical structure formation involved in morphogenesis
regulation of hydrolase activity
positive regulation of catalytic activity
positive regulation of molecular function
regulation of intracellular signal transduction
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)