Immunogen sequence: KVSIGNITLS PAISRHSPVQ MNRNLSNEEL TKSKPSAPPN EKGTSDLLAW DPLFGPSLDS SS. FCHO2 (FCH domain only 2) is a ubiquitously expressed member of the FCFBS superfamily characterized by FES-CIP4 homology (FCH) domain, an FBH domain, and an SH3 dom