In enzymology, a D-pinitol dehydrogenase (EC 1.1.1.142) is an enzyme that catalyzes the chemical reaction
| D-pinitol dehydrogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.1.1.142 | ||||||||
| CAS no. | 37250-71-8 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
- 1D-3-O-methyl-chiro-inositol + NADP+ 2D-5-O-methyl-2,3,5/4,6-pentahydroxycyclohexanone + NADPH + H+
Thus, the two substrates of this enzyme are 1D-3-O-methyl-chiro-inositol and NADP+, whereas its 3 products are 2D-5-O-methyl-2,3,5/4,6-pentahydroxycyclohexanone, NADPH, 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 1D-3-O-methyl-chiro-inositol:NADP+ oxidoreductase. This enzyme is also called 5D-5-O-methyl-chiro-inositol:NADP+ oxidoreductase.
References
edit- Ruis H, Hoffmann-Ostenhof O (1969). "Enzymic epimerization of sequoyitol to D-pinitol in Trifolium incarnatum". Eur. J. Biochem. 7 (3): 442–8. doi:10.1111/j.1432-1033.1969.tb19629.x. PMID 4389340.
