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2.4.1.334: 1,3-alpha-oligoglucan phosphorylase

This is an abbreviated version!
For detailed information about 1,3-alpha-oligoglucan phosphorylase, go to the full flat file.

Reaction

[(1->3)-alpha-D-glucosyl]n
+
phosphate
=
[(1->3)-alpha-D-glucosyl]n-1
+
beta-D-glucose 1-phosphate

Synonyms

Cphy_3314

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.334 1,3-alpha-oligoglucan phosphorylase

Systematic Name

Systematic Name on EC 2.4.1.334 - 1,3-alpha-oligoglucan phosphorylase

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SYSTEMATIC NAME
IUBMB Comments
1,3-alpha-D-glucan:phosphate beta-D-glucosyltransferase
The enzyme, isolated from the bacterium Clostridium phytofermentans, catalyses a reversible reaction. Substrates for the phosphorolytic reaction are alpha-1,3-linked oligoglucans with a polymerisation degree of 3 or more. Nigerose (i.e. 3-O-alpha-D-glucopyranosyl-D-glucopyranose) is not phosphorylyzed but can serve as substrate in the reverse direction (cf. EC 2.4.1.279, nigerose phosphorylase).