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EC 2.4.1.333 Details
EC number
2.4.1.333
Accepted name
1,2-β-oligoglucan phosphorylase
Reaction
[(1→2)-β-D-glucosyl]n + phosphate = [(1→2)-β-D-glucosyl]n-1 + α-D-glucose 1-phosphate
Systematic name
1,2-β-D-glucan:phosphate α-D-glucosyltransferase
Comment
The enzyme has been isolated from the bacterium Listeria innocua. It catalyses the reversible phosphorolysis of β-(1→2)-D-glucans. The minimum length of the substrate for the phosphorolytic reaction is 3 D-glucose units. In the synthetic reaction starting from sophorose and α-D-glucose 1-phosphate the average polymerisation degree is 39.
History
created 2014
EC Tree
1.1.1.68 created 1965, deleted 1978 [transferred to EC 1.1.99.15, deleted 1980]
1.1.1.70 created 1965, deleted 1978
1.1.1.74 created 1972, deleted 1976
1.1.1.89 created 1972, deleted 1976
1.1.1.109 created 1972, deleted 1976
1.1.1.139 created 1972, deleted 1978
1.1.1.155 created 1976, deleted 2004
1.1.1.171 created 1978, deleted 1984
1.1.1.180 created 1983, deleted 1984
1.1.1.182 created 1983, deleted 1990
1.1.1.204 created 1972 as EC 1.2.1.37, transferred 1984 to EC 1.1.1.204, modified 1989, deleted 2004
1.1.1.242 created 1992, deleted 2001
1.1.1.249 provisional version created 1999, deleted 1999 (reinstated 2001 as EC 2.5.1.46)
1.1.1.253 created 1999, deleted 2003
1.1.99.15 created 1978, deleted 1980
1.1.99.17 created 1982, deleted 2003