Immunogen sequence: AVATTEDNLS SSYSAVALDK AYFQTDRPAE QFHLQNNAPG NCDHPLPETT ATGDPTHSNT TESGEQHHQV DLTGNQPHQA YLSGDPEKAR ITSVP Highest antigen sequence identity to the following orthologs: Mouse - 65%, Rat - 74%. GTPase-activating protein (GAP) promoting G