| Modification Notes |
ARHGAP8 (Rho GTPase activating protein 8), also known as PP610 or BPGAP1, is a 464 amino acid protein that contains one Rho GAP domain and one CRAL-TRIO domain. Expressed at high levels in placenta and kidney, and at lower levels in testis, stomach, colon, small intestine and skeletal muscle, ARHGAP8 functions as a negative regulator of Rho-type GTPases, specifically catalyzing the conversion of the target GTPase to an inactive, GDP-bound state. Via its catalytic activity, ARHGAP8 is thought to play a role in signaling pathways and cytoskeletal changes throughout the cell. ARHGAP8 is overexpressed in colorectal and breast tumors, suggesting a role for ARHGAP8 in carcinogenesis. Human ARHGAP8 shares 80% homology with its mouse counterpart, suggesting a conserved role between species. Multiple isoforms of ARHGAP8 exist due to alternative splicing events. |