Immunogen sequence: APARDELPDW NEVLPPWDRE EDEVYPPGPY HPFPNYIRPR TLQPPSALRR RHYHHALPPS RHYPGREAQA RRAQEEAEAE ERRLQEQEEL ENYIEHV Highest antigen sequence identity to the following orthologs: Mouse - 90%, Rat - 89%. VGF was initially identified as a rapidly