Xanthoxin dehydrogenase

In enzymology, a xanthoxin dehydrogenase (EC 1.1.1.288) is an enzyme that catalyzes the chemical reaction

xanthoxin + NAD+ abscisic aldehyde + NADH + H+
Xanthoxin dehydrogenase
Identifiers
EC no.1.1.1.288
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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PMCarticles
PubMedarticles
NCBIproteins

Thus, the two substrates of this enzyme are xanthoxin and NAD+, whereas its 3 products are abscisic aldehyde, NADH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is xanthoxin:NAD+ oxidoreductase. Other names in common use include xanthoxin oxidase, and ABA2. This enzyme participates in carotenoid biosynthesis.

References

    • Sindhu RK; Walton DC (1988). "Xanthoxin metabolism in cell-free preparations from wild type and wilty mutants of tomato". Plant Physiol. 88 (1): 178–182. doi:10.1104/pp.88.1.178. PMC 1055545. PMID 16666262.
    • Schwartz SH, Leon-Kloosterziel KM, Koornneef M, Zeevaart JA (1997). "Biochemical characterization of the aba2 and aba3 mutants in Arabidopsis thaliana". Plant Physiol. 114 (1): 161–6. doi:10.1104/pp.114.1.161. PMC 158290. PMID 9159947.
    • Ponce MR, Micol JL, Serrano R, Rodriguez PL (2002). "The short-chain alcohol dehydrogenase ABA2 catalyzes the conversion of xanthoxin to abscisic aldehyde". Plant Cell. 14 (8): 1833–46. doi:10.1105/tpc.002477. PMC 151468. PMID 12172025.


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