anthocyanidin reductase [(2S)-flavan-3-ol-forming] EC#: 1.3.1.112; ChemWhat Code: 1374090
| Product Name | anthocyanidin reductase [(2S)-flavan-3-ol-forming] |
| Example Structure | ![Example Structure of anthocyanidin reductase [(2S)-flavan-3-ol-forming] EC#: 1.3.1.112](/wp-content/uploads/enzyme-structure/1.3.1.112.jpg) |
| Synonyms | ANR, anthocyanidin reductase ((2S)-flavan-3-ol-forming) |
| EC Number | 1.3.1.112 |
| CAS Registry Number | |
| Comments | The enzyme, characterized from Vitis vinifera (grape), participates in the flavonoid biosynthesis pathway. It catalyses the double reduction of anthocyanidins, producing a mixture of (2S,3S)- and (2S,3R)-flavan-3-ols. The enzyme catalyses sequential hydride transfers to C-2 and C-4, respectively. Epimerization at C-3 is achieved by tautomerization that occurs between the two hydride transfers. cf. EC 1.3.1.77, anthocyanidin reductase [(2R,3R)-flavan-3-ol-forming]. |
| Cofactor | |
| History | |
| Reactions | (1) A (2S,3R)-flavan-3-ol + 2 NADP(+) = an anthocyanidin with a 3-hydroxy group + 2 Nadph. (2) A (2S,3S)-flavan-3-ol + 2 NADP(+) = an anthocyanidin with a 3-hydroxy group + 2 Nadph. |
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