2.4.1.340: 1,2-beta-oligomannan phosphorylase

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For detailed information about 1,2-beta-oligomannan phosphorylase, go to the full flat file.

Reaction

Synonyms

1,2-beta-oligomannan phosphorylase, 1,2-beta-oligomannan:phosphate alpha-D-mannosyltransferase

ECTree

     2 Transferases

         2.4 Glycosyltransferases

             2.4.1 Hexosyltransferases

                2.4.1.340 1,2-beta-oligomannan phosphorylase

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Results	in table
2	AA Sequence
1	Cloned(Commentary)
1	General Information
8	kcat/KM [mM/s]
11	KM Value [mM]
3	Molecular Weight [Da]
1	Natural Substrates/ Products (Substrates)
1	Organism
2	pH Optimum
1	pH Stability
1	Purification (Commentary)
1	Reaction
1	Reference
9	Substrates and Products (Substrate)
2	Subunits
2	Synonyms
1	Systematic Name
1	Temperature Stability [°C]
8	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 2.4.1.340 - 1,2-beta-oligomannan phosphorylase

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SYSTEMATIC NAME

IUBMB Comments

(1->2)-beta-D-mannan:phosphate beta-D-mannosyl transferase (conformation-inverting)

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.