Immunogen sequence: QKDELKSFILQ KYMMVDSAED QKIHRPMAPK EAPKKLIRYI DNQVVSTKGE RFKDVRNPEA EEMKATYINL KPARKYRFH Highest antigen sequence identity to the following orthologs - mouse 96%, rat 94%. The CUE (coupling of ubiquitin conjugation to endoplasmic retic