Grtp1gene is regulated by growth hormone; orthologs from human, mouse, rat & Drosophila; contains the TBC signature motif of GTPase activator proteins of Rab-like small GTPases; Grtp1 is expressed at highest levels in testes, with lesser abundance in intestine, kidney, lung, and liver, in the testis, expression of Grtp1 significantly increases post-pubertally; Grtp1 was localized to mouse proximal chromosome 8; Orthologs of this protein are present in human, mouse, rat, and drosophila suggesting that GRTP1 has an important biological role(s). GenBank AF329833 (mouse)
