TREX1 GI:18375535 three prime repair exonuclease 1 isoform b 1 mgsqalppgp mqtliffdme atglpfsqpk vtelcllavh rcalesppts 50 51 qgppptvppp prvvdklslc vapgkacspa aseitglsta vlaahgrqcf 100 101 ddnlanllla flrrqpqpwc lvahngdryd fpllqaelam lgltsaldga 150 151 fcvdsitalk alerasspse hgprksyslg siytrlygqs ppdshtaegd 200 201 vlallsicqw rpqallrwvd aharpfgtir pmygvtasar tkprpsavtt 250 251 tahlattrnt spslgesrgt kdlppvkdpg alsregllap lgllailtla 300 301 vatlyglsla tpge