Catalyzes the initial reaction in the xylose utilization pathway by reducing D-xylose into xylitol. Xylose is a major component of hemicelluloses such as xylan. Most fungi utilize D- xylose via three enzymatic reactions, xylose reductase (XR), xylitol dehydrogenase (XDH), and xylulokinase, to form xylulose 5- phosphate, which enters pentose phosphate pathway (By similarity). NAD(P)H-dependent D-xylose reductase xyl1 XYL1_HYPJE 324 MASPTLKLNSGYDMPQVGFGLWKVDNAVCADTVYNAIKAGYRLFDGACDYGNEKECGEGVARAIKDGLVKREDLFIVSKLWQTFHDEDKVEPITRRQLADWQIDYFDLFLVHFPAALEYVDPSVRYPPGWFYDGKSEVRWSKTTTLQQTWGAMERLVDKGLARSIGVSNYQAQSVYDALIYARIKPATLQIEHHPYLQQPDLVSLAQTEGIVVTAYSSFGPTGFMELDMPRAKSVAPLMDSPVIKALADKHRRTPAQVLLRWATQRGIAVIPKTSRPEVMAQNLDNTSFDLDSEDLAKIADMDLNIRFNKPTNYFSANKLYLFG xyl1