Naringenin 7-O-methyltransferase explained

Naringenin 7-O-methyltransferase
Ec Number:	2.1.1.232

Naringenin 7-O-methyltransferase (NOMT) (full systematic name S-adenosyl-L-methionine:(2S)-5,7,4'-trihydroxyflavanone 7-O-methyltransferase) is a methyltransferase isolated from rice, which catalyzes the biosynthesis of sakuranetin.^[1]

This enzyme catalyses the following chemical reaction:

\rightleftharpoons S-adenosyl-L-homocysteine + (2S)-sakuranetin

While the enzyme is not present in healthy rice leaves, it can be induced by treatment with ultraviolet radiation, jasmonic acid and copper chloride.

Notes and References

1. Rakwal R, Agrawal GK, Yonekura M, Kodama O . Naringenin 7-O-methyltransferase involved in the biosynthesis of the flavanone phytoalexin sakuranetin from rice (Oryza sativa L.) . Plant Science . 155 . 2 . 213–221 . June 2000 . 10814825 . 10.1016/s0168-9452(00)00223-5 .