>4NRG_2|Chain B|Ubiquitin-conjugating enzyme E2 N|Homo sapiens (9606) GPLGSPEFMAGLPRRIIKETQRLLAEPVPGIKAEPDESNARYFHVVIAGPQDSPFEGGTFKLELFLPEEYPMAAPKVRFMTKIYHPNVDKLGRICLDILKDKWSPALQIRTVLLSIQALLSAPNPGDPLANDVAEQWKTNEAQAIETARAWTRLYAMNNI >4NRG_1|Chain A|Ubiquitin-conjugating enzyme E2 variant 2|Homo sapiens (9606) GPLGSPEFMAVSTGVKVPRNFRLLEELEEGQKGVGDGTVSWGLEDDEDMTLTRWTGMIIGPPRTNYENRIYSLKVECGPKYPEAPPSVRFVTKINMNGINNSSGMVDARSIPVLAKWQNSYSIKVVLQELRRLMMSKENMKLPQPPEGQTYNN