EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
2.1.1.267 | 2 S-adenosyl-L-methionine + myricetin |
the enzyme also catalyzes the methylation of luteolin, tricetin and caffeoyl-CoA. ROMT-15 exhibits similar kcat/Km values for the four substrates. ROMT-15 can not utilize naringenin, apigenin, or kaempferol. The 2,3-double bond and the O-dihydroxyl group are both required for catalytic activity |
Oryza sativa |
2 S-adenosyl-L-homocysteine + syringetin |
syringetin is the 3',5'-dimethyl ether of myricetin |
? |
2.1.1.267 | 2 S-adenosyl-L-methionine + myricetin |
the enzyme also catalyzes the methylation of luteolin, tricetin and caffeoyl-CoA. ROMT-17 prefers tricetin. ROMT-15 can not utilize naringenin, apigenin, or kaempferol. The 2,3-double bond and the O-dihydroxyl group are both required for catalytic activity |
Oryza sativa |
2 S-adenosyl-L-homocysteine + syringetin |
syringetin is the 3',5'-dimethyl ether of myricetin |
? |
2.1.1.267 | 4 S-adenosyl-L-methionine + quercetin |
whole-cell biocatalysis using CdFOMT5 expressed in Escherichia coli cells is performed using quercetin as a substrate, and 3,3',5,7-tetramethylated quercetin is obtained as the final product |
Citrus depressa |
4 S-adenosyl-L-homocysteine + 3,3',5,7-tetramethoxyquercetin |
- |
? |
2.1.1.267 | eriodictyol + S-adenosyl-L-methionine |
11% of the activity with quercetin |
Solanum lycopersicum |
homoeriodictyol + S-adenosyl-L-homocysteine |
- |
? |
2.1.1.267 | laricitrin + S-adenosyl-L-methionine |
114% of the activity with quercetin |
Solanum lycopersicum |
syringetin + S-adenosyl-L-homocysteine |
- |
? |
2.1.1.267 | luteolin + S-adenosyl-L-methionine |
42% of the activity with quercetin |
Solanum lycopersicum |
chrysoeriol + S-adenosyl-L-homocysteine |
- |
? |
2.1.1.267 | more |
substrate specificity, overview |
Nemophila menziesii |
? |
- |
- |
2.1.1.267 | more |
CROMT2 is involved in biosynthesis of glycosides and anthocyanins |
Catharanthus roseus |
? |
- |
? |
2.1.1.267 | more |
isoform ROMT-15, no substrate: naringenin, apigenin, kaempferol |
Oryza sativa |
? |
- |
? |
2.1.1.267 | more |
isoform ROMT-17, no substrate: naringenin, apigenin, kaempferol |
Oryza sativa |
? |
- |
? |