>4NR3_1|Chain A|Ubiquitin-conjugating enzyme E2 variant 2|Homo sapiens (9606) GPLGSPEFGVKVPRNFRLLEELEEGQKGVGDGTVSWGLEDDEDMTLTRWTGMIIGPPRTNYENRIYSLKVECGPKYPEAPPSVRFVTKINMNGINNSSGMVDARSIPVLAKWQNSYSIKVVLQELRRLMMSKENMKLPQPPEGQTYNN >4NR3_2|Chain B|Ubiquitin-conjugating enzyme E2 N|Homo sapiens (9606) GPLGSPEFAGLPRRIIKETQRLLAEPVPGIKAEPDESNARYFHVVIAGPQDSPFEGGTFKLELFLPEEYPMAAPKVRFMTKIYHPNVDKLGRICLDILKDKWSPALQIRTVLLSIQALLSAPNPDDPGANDVAEQWKTNEAQAIETARAWTRLYAMN