Git3 is one of six proteins required for glucose-triggered adenylate cyclase activation, and is a G protein-coupled receptor responsible for the activation of adenylate cyclase through Gpa2 - heterotrimeric G protein alpha subunit, part of the glucose-detection pathway. Git3 contains seven predicted transmembrane domains, a third cytoplasmic loop and a cytoplasmic tail [1]. This is the conserved N-terminus of these proteins, and the C-terminal conserved region is now in family Git3_C.

1: Glucose monitoring in fission yeast via the Gpa2 galpha, the git5 Gbeta and the git3 putative glucose receptor. Welton RM, Hoffman CS; Genetics. 2000;156:513-521. PMID:11014802