472 Guanine nucleotide exchange factor (GEF) with specificity for RAP2A and other Ras family proteins (in vitro) (By similarity). MPQTPPFSAMFDSSGYNRNLYQSAEDSCGGLYYHDNNLLSGSLEALIQHLVPNVDYYPDRTYIFTFLLSSRLFMHPYELMAKVCHLCVEHQRLSDPNSDKNQIRKIAPKILQLLTEWTETFPYDFRDERMMRNLKDLAHRIASGEETYRKNVQQMIQCLIRKLAALSQYEEVLAKISSTSTDRLTVLKTKPQSIQRDIITVCSDPYTLAQQLTHIELERLNYIGPEEFVQAFVQKDPLDNDKSCYSERKKTRNLEAYVEWFNRLSYLVATEICMPVKKKHRARMIEYFIDVARECFNIGNFNSLMAIISGMNMSPVSRLKKTWAKVKTAKFDVLEHQMDPSSNFYNYRTALRGAAQRSLTAHSSREKIVIPFFSLLIKDIYFLNEGCANRLPNGHVNFEKFWELAKQVSEFMTWKQVECPFERDRKILQHLLTVPVFSEDALYLASYESEGPENHIEKDRWKSLRSSLLGRV Ras-GEF domain-containing family member 1B RASGEF1B RGF1B_BOVIN