>|Ubiquitin-conjugating enzyme E2 N double mutant (C87K, K92A)(Ubc13 - C87K, K92A)
GPLGSPEFMAGLPRRIIKETQRLLAEPVPGIKAEPDESNARYFHVVIAGPQDSPFEGGTFKLELFLPEEYPMAAPKVRFMTKIYHPNVDKLGRIKLDILADKWSPALQIRTVLLSIQALLSAPNPDDP
LANDVAEQWKTNEAQAIETARAWTRLYAMNNI