EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
2.1.1.B76 | 2 S-adenosyl-L-methionine + kaempferol |
activity only of enzyme mutant POMT7-M1, D257G, not of wild-type POMT7 |
Populus sp. |
S-adenosyl-L-homocysteine + 3,7-O-dimethylkaempferol |
- |
? |
2.1.1.B76 | 2 S-adenosyl-L-methionine + quercetin |
activity only of enzyme mutant POMT7-M1, D257G, not of wild-type POMT7, molecular docking of quercetin into the modeled structure of Asp257Gly |
Populus sp. |
S-adenosyl-L-homocysteine + 3,7-O-dimethylquercetin |
- |
? |
2.1.1.B76 | more |
POMT-7 is able to transfer a methyl group to several flavonoids containing a C-7 hydroxyl group. POMT-7 shows a higher affinity toward flavonol and flavone such as apigenin, kaempferol, luteolin, and quercetin than flavanone and isoflavone |
Populus deltoides |
? |
- |
? |
2.1.1.B76 | more |
the O-methyltransferase from poplar transfers a methyl group to several flavonoids that contain a 7-hydroxyl group. POMT7 has a high affinity toward quercetin, and the reaction product rhamnetin |
Populus sp. |
? |
- |
? |
2.1.1.B76 | more |
POMT-7 is able to transfer a methyl group to several flavonoids containing a C-7 hydroxyl group. POMT-7 shows a higher affinity toward flavonol and flavone such as apigenin, kaempferol, luteolin, and quercetin than flavanone and isoflavone |
Populus deltoides Marsh |
? |
- |
? |
2.1.1.B76 | S-adenosyl-L-methionine + (2S)-5,7,4'-trihydroxyflavanone |
i.e. (2S)-naringenin, 16% of the activity with apigenin (i.e. 5,7,4'-trihydroxyflavone) |
Populus deltoides |
S-adenosyl-L-homocysteine + (2S)-5,4'-dihydroxy-7-methoxyflavanone |
i.e. (2S)-sakuranetin |
? |
2.1.1.B76 | S-adenosyl-L-methionine + (2S)-5,7,4'-trihydroxyflavanone |
i.e. (2S)-naringenin, 16% of the activity with apigenin (i.e. 5,7,4'-trihydroxyflavone) |
Populus deltoides Marsh |
S-adenosyl-L-homocysteine + (2S)-5,4'-dihydroxy-7-methoxyflavanone |
i.e. (2S)-sakuranetin |
? |
2.1.1.B76 | S-adenosyl-L-methionine + 3',4',5,7-tetrahydroxyflavanone |
i.e. eriodictyol, 14% of the activity with apigenin (i.e. 5,7,4'-trihydroxyflavone) |
Populus deltoides |
S-adenosyl-L-homocysteine + 3,4',5-trihydroxy-7-methoxyflavanone |
- |
? |
2.1.1.B76 | S-adenosyl-L-methionine + 3,3',4',5,7-pentahydroxyflavone |
i.e. quercetin |
Populus sp. |
S-adenosyl-L-homocysteine + 3,3',4',5-tetrahydroxy-7-methoxyflavone |
- |
? |
2.1.1.B76 | S-adenosyl-L-methionine + 3,3',4',5,7-pentahydroxyflavone |
i.e. quercetin |
Populus sp. |
S-adenosyl-L-homocysteine + 3,3',4',5-tetrahydroxy-7-methoxyflavone |
i.e. rhamnetin |
? |