Xanthoxin dehydrogenase

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

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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NCBIproteins
xanthoxin + NAD+ abscisic aldehyde + NADH + H+

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

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  • 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.