UBE2K GI:163660385 ubiquitin-conjugating enzyme E2K isoform 2 1 maniavqrik refkevlkse etsknqikvd lvdenftelr geiagppdtp 50 51 yeggryqlei kipetypfnp pkvrfitkiw hpnissvtga icldilkdqw 100 101 aaamtlrtvl lslqallaaa epddpqdavv anqnavival sskswdveta 150 151 telllsn