Immunogen sequence: VPGTGDANPA VSEDALFRDK LKHMGKSTRR KLFELARAFS EKTKMRKSKR KHLLKHQSLG AAASTANLLD DVEGHACDED FRGRRQEAPK VEEGLREGQ Highest antigen sequence identity to the following orthologs: Mouse - 89%, Rat - 89%. The CUE (coupling of ubiquitin conjugat