Immunogen sequence: VPENPKRKKY VKTSKFVAFD RIINPTKDLY EDKNIRIPER FQKVSEQTQQ CDGMRICEQA PQQALPQSFP KPGTQGHTKN LLRP Antigen sequence identity: Mouse 30%; Rat 30%. This gene encodes a member of the ubiquitin-specific processing (UBP) family of proteases and