Immunogen sequence: TATNHQGLPA VDSEILEMPP EKADGVVEGI DVNGPKAQLM LRYPDGKREQ ITLPEQAKLL ALVKHVQSKG YPNERFELLT NFPRR Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 94%. Ubiquitin-binding adapter that links a subset of NEDD8