flavonoid 3′,5′-methyltransferase EC#: 2.1.1.267; ChemWhat Code: 1376533
| Product Name | flavonoid 3′,5′-methyltransferase |
| Example Structure |  |
| Synonyms | anthocyanin O-methyltransferase, AnthOMT, AOMT, AOMT1, AOMT2, AOMT3, CrCOMT2, CrOMT2, flavonoid 3′,5′-O-dimethyltransferase, flavonoid O-methyltransferase, methyltransferase, flavonoid, OMT2, OMT3, ROMT-15, ROMT-17 |
| EC Number | 2.1.1.267 |
| CAS Registry Number | |
| Comments | Isolated from Vitis vinifera (grape) [2]. Most active with delphinidin 3-glucoside but also acts on cyanidin 3-glucoside, cyanidin, myricetin, quercetin and quercetin 3-glucoside. The enzyme from Catharanthus roseus was most active with myricetin [1]. |
| Cofactor | |
| History | |
| Reactions | (1) S-adenosyl-L-methionine + a 3′-hydroxyflavonoid = S-adenosyl-L- homocysteine + a 3′-methoxyflavonoid. (2) S-adenosyl-L-methionine + a 5′-hydroxy-3′-methoxyflavonoid = S-adenosyl-L-homocysteine + a 3′,5′-dimethoxyflavonoid. |
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