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EC Number
Protein Variants
Commentary
Reference
3.2.1.197
D142N
no activity
-
,
738663
3.2.1.197
D363A
no activity
738663
3.2.1.197
E141Q
no activity
738663
3.2.1.197
E224A
1.9% of wild-type activity. Glutamic acid residues E265 and E224 are critical for the hydrolysis of beta-1,2-mannotriose. The residues are not conserved among GH130 phosphorylases and are predicted to assist the nucleophilic attack of a water molecule in the hydrolysis of the beta-D-mannosidic bond
-
,
738244
3.2.1.197
E227Q
32% of wild-type activity
738663
3.2.1.197
E227Q/E268Q
no activity
738663
3.2.1.197
E265A
0.04% of wild-type activity. Glutamic acid residues E265 and E224 are critical for the hydrolysis of beta-1,2-mannotriose. The residues are not conserved among GH130 phosphorylases and are predicted to assist the nucleophilic attack of a water molecule in the hydrolysis of the beta-D-mannosidic bond
-
,
738244
3.2.1.197
E268A
5% of wild-type activity
-
,
738663
3.2.1.197
E268Q
4% of wild-type activity
-
,
738663
3.2.1.197
F344A
31% of wild-type activity
738663
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