Immunogen sequence: SRQYNHAAAN QNSNATSNIR KEFVPKWNKP SDVSATERTA KYTMEGKGRA AHPALAVTVP GPAEVRVSNV RPKMKALDAE DGKRGSTAS Highest antigen sequence identity to the following orthologs: Mouse - 70%, Rat - 66%. Acts as a GTPase-activating protein for RAB5A and