EC 1 - Oxidoreductases
EC 1.1 - Acting on the CH-OH group of donors
EC 1.1.1 - With NAD+ or NADP+ as acceptor
EC 1.1.1.179 - D-xylose 1-dehydrogenase (NADP+, D-xylono-1,5-lactone-forming)
IntEnz view
ENZYME view
IntEnz Enzyme Nomenclature
EC 1.1.1.179
Names
Accepted name:
D-xylose 1-dehydrogenase (NADP+, D-xylono-1,5-lactone-forming)
Other
names:
D-xylose (nicotinamide adenine dinucleotide phosphate) dehydrogenase
[ambiguous]
D-xylose-NADP dehydrogenase [ambiguous]
D-xylose:NADP+ oxidoreductase
D-xylose-NADP dehydrogenase [ambiguous]
D-xylose:NADP+ oxidoreductase
Systematic name:
D-xylose:NADP+ 1-oxidoreductase (D-xylono-1,5-lactone-forming)
Reaction
- D-xylose + NADP+ = D-xylono-1,5-lactone + NADPH + H+
Comments:
The enzyme, characterized from pig arterial vessels and eye lens, also acts, more slowly, on L-arabinose and D-ribose. Cf. EC 1.1.1.424, D-xylose 1-dehydrogenase (NADP+, D-xylono-1,4-lactone-forming).
Links to other databases
Gene Ontology:
GO:0047837
CAS Registry Number:
83534-37-6
References
-
D-Xylose:NADP oxidoreductase of arterial vessels and eye lens: a new enzyme and a final link in ATP-independent cycling of reducing eqivalents in aldose-polyol-ketose interconversion.Hoppe-Seyler's Z. Physiol. Chem. 358 : 1300-1301 (1977).
-
Direct spectrophotometric and specific quantitative determination of free and bound D-xylose by analytical application of a new enzyme, D-xylose:NADP-oxidoreductase.Fresenius' Z. Anal. Chem. 290 : 179-180 (1978).
[EC 1.1.1.179 created 1982, modified 2020]