Immunogen sequence: GIVRLRDGLR DRYPVEDYLD LFDLAAHQIH QGLQASSAKE QSKMNTIIIG EASASTMWDN NAWTFFYDNS TDGEPPFLTQ DFIHAFQPNA RLIVMLRDPV ER Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 92%. GALNAC4S-6ST is a sulfotransferase