Peptide sequence: GSMVLPPCSF GKQFGGKRGC DCLVLEPSEM IVVENAKDNE DSILQREIPA Sequence homology: Cow: 86%; Dog: 93%; Guinea Pig: 86%; Human: 100%; Mouse: 93%; Rabbit: 86%; Rat: 93%. RAPGEF6 is a guanine nucleotide exchange factor (GEF) for Rap1A, Rap2A and M-