Protein
Probable NAD(P)H-dependent D-xylose reductase xyl1
Organism
Neosartorya fischeri (strain ATCC 1020 / DSM 3700 / CBS 544.65 / FGSC A1164 / JCM 1740 / NRRL 181 / WB 181)
Function
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).
Similarity
Belongs to the aldo/keto reductase family.
Sequence
MTTPSTKLNSGYDMPLVGFGLWKVNNETCADQIYHAIKAGYRLFDGACDYGNEVEAGKGVARAIQEGIVKREDLFIVSKLWNSFHDGDRVEPICRKQLADWGLDYFDLFIVHFPIALKYVDPAVRYPPGWLSENNKLEFSNASIQETWTAMESLVDKKLARSIGVSNFSAQLLMDLLRYARIRPATLQIEHHPYLTQERLVTYAQKEGIAVTAYSSFGPLSFVELDLKDAHETPKLFDHDVIKGIAQKHGKTPAQVLLRWATQRNIAVIPKSNDPTRLAQNLDVTGWDLETSEIEVISSLNRNLRFNDPLAPSRLDPIPDD