UBE2V1 GI:40806164 ubiquitin-conjugating enzyme E2 variant 1 isoform a 1 mpgevqasyl ksqsklsdeg rleprkfhck gvkvprnfrl leeleegqkg 50 51 vgdgtvswgl eddedmtltr wtgmiigppr tiyenriysl kiecgpkype 100 101 appfvrfvtk inmngvnssn gvvdpraisv lakwqnsysi kvvlqelrrl 150 151 mmskenmklp qppegqcysn