Members of the RAS subfamily of GTPases function in signal transduction as GTP/GDP-regulated switches that cycle between inactive GDP- and active GTP-bound states. Guanine nucleotide exchange factors (GEFs), such as RASGRP3, serve as RAS activators by promoting acquisition of GTP to maintain the active GTP-bound state and are the key link between cell surface receptors and RAS activation.
Protein Aliases: Calcium and DAG-regulated guanine nucleotide exchange factor III; calcium- and diacylglycerol-regulated guanine nucleotide exchange factor III; CalDAG-GEFIII; Guanine nucleotide exchange factor for Rap1; OTTHUMP00000201245; RAS guanyl releasing protein 3 (calcium and DAG-regulated); Ras guanyl-releasing protein 3
Gene Aliases: BC066069; Gm327; GRP3; KIAA0846; RASGRP3
UniProt ID: (Human) Q8IV61
Molecular Function: guanyl-nucleotide exchange factor