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 | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
- 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
edit- 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.
