Glucuronoxylan 4-O-methyltransferase

In enzymology, a glucuronoxylan 4-O-methyltransferase (EC 2.1.1.112) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + glucuronoxylan D-glucuronate ${\displaystyle \rightleftharpoons }$ S-adenosyl-L-homocysteine + glucuronoxylan 4-O-methyl-D-glucuronate

Thus, the two substrates of this enzyme are S-adenosyl methionine and , whereas its two products are S-adenosylhomocysteine and .

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:glucuronoxylan-D-glucuronate 4-O-methyltransferase.

References[]

• Baydoun EA, Usta JA-R, Waldron KW, Brett CT (1989). "A methyltransferase involved in the biosynthesis of 4-O-methylglucuronoxylan in etiolated pea epicotyls". J. Plant Physiol. 135: 81–85. doi:10.1016/s0176-1617(89)80228-7.