RAB10, Member RAS Oncogene Family (RAB10)

RAB10 belongs to the RAS superfamily of small GTPases. RAB proteins localize to exocytic and endocytic compartments and regulate intracellular vesicle trafficking. The deduced 49-amino acid sequence includes the first 2 GTP-binding regions and effector domain residues that are conserved in RAB proteins. The deduced 200-amino acid RAB10 protein contains 4 highly conserved GTPase motifs and a C-terminal geranylgeranylation motif. Northern blot analysis detected a major transcript of about 4 kb and a smaller minor transcript. Highest expression was detected in heart and skeletal muscle, followed by brain, placenta, lung, liver, kidney, pancreas, testis, and spleen. Low expression was detected in ovary, prostate, and colon, and little to no expression was detected in thymus, small intestine, and leukocytes.