DUT GI:4503423 deoxyuridine triphosphatase isoform 2 1 mpcseetpai spskrarpae vggmqlrfar lsehataptr gsaraagydl 50 51 ysaydytipp mekavvktdi qialpsgcyg rvaprsglaa khfidvgagv 100 101 idedyrgnvg vvlfnfgkek fevkkgdria qlicerifyp eieevqaldd 150 151 tergsggfgs tgkn