Enzyme

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].

FAOMT

Enzyme

Flavonoid 3',5'-methyltransferase

Enzyme name

EC:2.1.1.267

Entry

Transferases;Transferring one-carbon groups;Methyltransferases

Class

S-adenosyl-L-methionine:flavonoid 3'-O-methyltransferase

Sysname

(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

Reaction

S-adenosyl-L-homocysteine [CPD:C00021];3'-methoxyflavonoid;3',5'-dimethoxyflavonoid

Product

Species information

Acer yangbiense

Species name

Acer yangbiense is a species of eudicot in the family Sapindaceae (soapberry family).Acer yangbiense is a newly described critically endangered endemic maple tree confined to Yangbi County in Yunnan Province in Southwest China. It was included in a programme for rescuing the most threatened species in China, focusing on plant species with extremely small populations (PSESP).

Species info

Sheng jun & Dong yang Teams, Yunnan agriculture University