Peptide sequence: IHKALENSFV TSESGFLNSL SSDDTSSLSS NHDHLTVPDK PAGSKIMDKE Sequence homology: Cow: 93%; Dog: 93%; Guinea Pig: 86%; Horse: 93%; Human: 100%; Mouse: 79%; Rabbit: 93%; Rat: 93%. Enhances the promotion of guanine-nucleotide exchange by PSCD2 on