U2AF1 GI:68800128 U2 small nuclear RNA auxillary factor 1 isoform b 1 maeylasifg tekdkvncsf yfkigacrhg drcsrlhnkp tfsqtiliqn 50 51 iyrnpqnsaq tadgshcavs dvemqehyde ffeevfteme ekygeveemn 100 101 vcdnlgdhlv gnvyvkfrre edaekavidl nnrwfngqpi haelspvtdf 150 151 reaccrqyem gectrggfcn fmhlkpisre lrrelygrrr kkhrsrsrsr 200 201 errsrsrdrg rggggggggg gggrerdrrr srdrersgrf