glucuronoxylan 4-O-methyltransferase activity
glucuronoxylan 4-o-methyltransferase activity
S-adenosyl-L-methionine:glucuronoxylan-D-glucuronate 4-O-methyltransferase activity
s-adenosyl-l-methionine:glucuronoxylan-d-glucuronate 4-o-methyltransferase activity