Biology:Xanthoxin dehydrogenase
From HandWiki
| Xanthoxin dehydrogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.1.1.288 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
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In enzymology, a xanthoxin dehydrogenase (EC 1.1.1.288) is an enzyme that catalyzes the chemical reaction
- xanthoxin + NAD+ [math]\displaystyle{ \rightleftharpoons }[/math] 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
- 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. PMID 16666262.
- "Biochemical characterization of the aba2 and aba3 mutants in Arabidopsis thaliana". Plant Physiol. 114 (1): 161–6. 1997. doi:10.1104/pp.114.1.161. PMID 9159947.
- "The short-chain alcohol dehydrogenase ABA2 catalyzes the conversion of xanthoxin to abscisic aldehyde". Plant Cell 14 (8): 1833–46. 2002. doi:10.1105/tpc.002477. PMID 12172025.
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