UBE2C GI:32967287 ubiquitin-conjugating enzyme E2C isoform 4 1 mtlmmsgdkg isafpesdnl fkwvgtihga agtvyedlry klslefpsgy 50 51 pynaptvkfl tpcyhpnvdt qgnicldilk ekwsalydvr tillsiqsll 100 101 gepnidspln thaaelwknp tafkkylqet yskqvtsqep