Information on EC 2.4.1.340 - 1,2-beta-oligomannan phosphorylase

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EC Tree
     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.340 1,2-beta-oligomannan phosphorylase
IUBMB Comments
The enzyme, originally characterized from the thermophilic anaerobic bacterium Thermoanaerobacter sp. X514, catalyses a reversible reaction. In the synthetic direction it produces oligosaccharides with a degree of polymerization (DP) of 3, 4 and 5. The phosphorolysis reaction proceeds to completion, although activity is highest when the substrate has at least three residues. cf. EC 2.4.1.339, beta-1,2-mannobiose phosphorylase.
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The enzyme appears in viruses and cellular organisms
Synonyms
1,2-beta-oligomannan phosphorylase, 1,2-beta-oligomannan:phosphate alpha-D-mannosyltransferase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
[(1->2)-beta-D-mannosyl]n + phosphate = [(1->2)-beta-D-mannosyl]n-1 + alpha-D-mannose 1-phosphate
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