Immunogen sequence: KGTGKERPGL IEFEECDTAS AVEGIKPRKR KTFALPGIIK KEKDAESVEC PDADSLNIPD VDEEGYSI Highest antigen sequence identity to the following orthologs: Mouse - 97%, Rat - 97%. FCHO2 (FCH domain only 2) is a ubiquitously expressed member of the FCFBS