Immunogen sequence: EESMFFSNPL FLASPCSENS ASGECFSWGA SDSHAGVRTG PESPATLEPP LPEDTVLWEL ESEPDLGDGA AISGHCTPPF PVPIYKPHSI Highest antigen sequence identity to the following orthologs: Mouse - 56%, Rat - 55%. Guanine nucleotide exchange factor for ARF6 and A