View source for D-xylose 1-dehydrogenase (NADP+)

{{DISPLAYTITLE:D-xylose 1-dehydrogenase (NADP<sup>+</sup>)}}
{{infobox enzyme
| Name       = D-xylose 1-dehydrogenase (NADP<sup>+</sup>)
| EC_number  = 1.1.1.179
| CAS_number = 83534-37-6
| GO_code    = 0047837
| image      =
| width      = 
| caption    =  
}}
In [[enzymology]], a '''D-xylose 1-dehydrogenase (NADP<sup>+</sup>)''' ({{EC number|1.1.1.179}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:D-xylose + NADP<sup>+</sup> <math>\rightleftharpoons</math> D-xylono-1,5-lactone + NADPH + H<sup>+</sup>

Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[D-xylose]] and [[nicotinamide adenine dinucleotide phosphate|NADP<sup>+</sup>]], whereas its 3 [[product (chemistry)|products]] are [[D-xylono-1,5-lactone]], [[nicotinamide adenine dinucleotide phosphate|NADPH]], and [[hydrogen ion|H<sup>+</sup>]].

This enzyme belongs to the family of [[oxidoreductase]]s, specifically those acting on the CH-OH group of donor with NAD<sup>+</sup> or NADP<sup>+</sup> as acceptor.  The [[List of enzymes|systematic name]] of this enzyme class is '''D-xylose:NADP<sup>+</sup> 1-oxidoreductase'''. Other names in common use include '''D-xylose (nicotinamide adenine dinucleotide phosphate)''', '''dehydrogenase''', '''D-xylose-NADP<sup>+</sup> dehydrogenase''', '''D-xylose:NADP<sup>+</sup> oxidoreductase''', and '''D-xylose 1-dehydrogenase (NADP<sup>+</sup>)'''.

==References==
{{reflist|1}}
* {{cite journal | vauthors = Wissler JH | date = 1977 | title = D-Xylose:NADP oxidoreductase of arterial vessels and eye lens: a new enzyme and a final link in ATP-independent cycling of reducing equivalents in aldose-polyol-ketose interconversion | journal = Hoppe-Seyler's Z. Physiol. Chem. | volume = 358 | pages = 1300&ndash;1301 }}
* {{cite journal | vauthors = Wissler JH | date = 1978 | title = Direct spectrophotometric and specific quantitative determination of free and bound D-xylose by analytical application of a new enzyme, D-xylose:NADP-oxidoreductase | journal = Fresenius' Z. Anal. Chem. | volume = 290 | issue = 2 | pages = 179&ndash;180 | doi = 10.1007/BF00482334 | s2cid = 83089543 }}

{{Alcohol oxidoreductases}}
{{Enzymes}}
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[[Category:EC 1.1.1]]
[[Category:NADPH-dependent enzymes]]
[[Category:Enzymes of known structure]]


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