NCBI Accession #
Q38J50.1
NCBI Official Full Name
Tricetin 3',4',5'-O-trimethyltransferase
UniProt Synonym Gene Names
TaOMT2; TaCM
UniProt Protein Name
Tricetin 3',4',5'-O-trimethyltransferase
UniProt Synonym Protein Names
Caffeic acid 3-O-methyltransferase; TaCM; Flavone O-methyltransferase 2
UniProt Primary Accession #
Q38J50
UniProt Secondary Accession #
B8LGB9
UniProt Comments
Flavonoid B-ring-specific O-methyltransferase with a preference for flavones > dihydroflavones > flavonols that possess at least two B-ring hydroxyl groups. Active with tricetin, 5-hydroxyferulic acid, luteolin, quercitin, eriodictyol, quercetagetin, taxifolin, gossypetin and myricetin. No activity with naringenin, apigenin, kaempferol, 7,8-dihydroxy- or 5,7,8-trihydroxy flavones, chlorogenic acid, gallic acid or daphnetin. Catalyzes the sequential O-methylation of tricetin via 3'-O-methyltricetin, 3',5'-O-methyltricetin to 3',4',5'-O-trimethyltricetin. May also be involved in S lignin biosynthesis.