FEATURES

FAMILY

DESCRIPTION

Also known as AGAP2_HUMAN, AGAP2, CENTG1, KIAA0167. GTPase-activating protein (GAP) for ARF1 and ARF5, which also shows strong GTPase activity. Isoform 1 participates in the prevention of neuronal apoptosis by enhancing PI3 kinase activity. It aids the coupling of metabotropic glutamate receptor 1 (GRM1) to cytoplasmic PI3 kinase by interacting with Homer scaffolding proteins, and also seems to mediate anti-apoptotic effects of NGF by activating nuclear PI3 kinase. Isoform 2 does not stimulate PI3 kinase but may protect cells from apoptosis by stimulating Akt. It also regulates the adapter protein 1 (AP-1)-dependent trafficking of proteins in the endosomal system. It seems to be oncogenic. It is overexpressed in cancer cells, prevents apoptosis and promotes cancer cell invasion. Isoform 1 interacts with EPB41L1, PLCG1, NF2, HOMER1 and HOMER2 (By similarity). Isoform 2 interacts with activated AKT1 in the presence of guanine nucleotides, and with the AP-1 complex.

EXTERNAL LINKS

AGAP2

Arf-GAP with GTPase, ANK repeat and PH domain-containing protein 2

AGAP2

Molecular Synopsis