Immunogen sequence: KPLKRFKRAA GKKGARTRQG PGAESEDLYD FVFIVAGEKE DGEEMEIGEV ACGALDGSDP SCLGLPALEA SQRF Highest antigen sequence identity to the following orthologs: Mouse - 97%, Rat - 96%. Probable substrate recognition component of an ECS (Elongin BC-CUL