Polysaccharide O-methyltransferase
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In enzymology, a polysaccharide O-methyltransferase (EC 2.1.1.18) is an enzyme that catalyzes the chemical reaction
- S-adenosyl-L-methionine + 1,4-alpha-D-glucooligosaccharide
S-adenosyl-L-homocysteine + oligosaccharide containing 6-methyl-D-glucose units
Thus, the two substrates of this enzyme are S-adenosyl methionine and 1,4-alpha-D-glucooligosaccharide, whereas its two products are S-adenosylhomocysteine and oligosaccharide containing 6-methyl-D-glucose units. 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:1,4-alpha-D-glucan 6-O-methyltransferase. Other names in common use include polysaccharide methyltransferase, and acylpolysacharide 6-methyltransferase.
[edit] References
- IUBMB entry for 2.1.1.18
- BRENDA references for 2.1.1.18 (Recommended.)
- PubMed references for 2.1.1.18
- PubMed Central references for 2.1.1.18
- Google Scholar references for 2.1.1.18
- Ferguson JA, Ballou CE (1970). "Biosynthesis of a mycobacterial lipopolysaccharide. Properties of the polysaccharide methyltransferase". J. Biol. Chem. 245: 4213–23. PMID 5503262.
[edit] External links
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- The CAS registry number for this enzyme class is 37205-56-4.
[edit] Gene ontology (GO) codes
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