1.1.99.35	D275E	substrate specificity: D-glucose 100% activity, 2-deoxy-D-glucose 6%, D-mannose 11%, D-allose 44%, 3-O-methyl-D-glucose 45%, D-galactose 12%, D-xylose 7%, D-lactose 52%, D-maltose 44%, respectively	639216	
1.1.99.35	D276E	substrate specificity: D-glucose 100% activity, 2-deoxy-D-glucose 13%, D-mannose 19%, D-allose 54%, 3-O-methyl-D-glucose 57%, D-galactose 26%, D-xylose 20%, D-lactose 75%, D-maltose 66%, respectively	639216	
1.1.99.35	D340F/Y418F	increase in temperature stability	655127	
1.1.99.35	D340F/Y418I	increase in temperature stability	655127	
1.1.99.35	D448N	substrate specificity: D-glucose 100% activity, 3-O-methyl-D-glucose 72%, D-allose 39%, D-galactose 14%, D-maltose 36%, D-lactose 48%, respectively	654398	
1.1.99.35	D456N	substrate specificity: D-glucose 100% activity, 3-O-methyl-D-glucose 78%, D-allose 43%, D-galactose 16%, D-maltose 41%, D-lactose 59%, respectively	654398	
1.1.99.35	DD457N	substrate specificity: D-glucose 100% activity, 3-O-methyl-D-glucose 80%, D-allose 46%, D-galactose 11%, D-maltose 32%, D-lactose 43%, respectively	654398	
1.1.99.35	E277A	substrate specificity: D-glucose 100% activity, 2-deoxy-D-glucose 11%, D-mannose 33%, D-allose 142%, 3-O-methyl-D-glucose 91%, D-galactose 46%, D-xylose 23%, D-lactose 83%, D-maltose 39%, respectively	639216	
1.1.99.35	E277D	substrate specificity: D-glucose 100% activity, 2-deoxy-D-glucose 9%, D-mannose 19%, D-allose 68%, 3-O-methyl-D-glucose 58%, D-galactose 21%, D-xylose 15%, D-lactose 87%, D-maltose 73%, respectively	639216	
1.1.99.35	E277G	substrate specificity: D-glucose 100% activity, 2-deoxy-D-glucose 15%, D-mannose 38%, D-allose 189%, 3-O-methyl-D-glucose 113%, D-galactose 59%, D-xylose 28%, D-lactose 100%, D-maltose 52%, respectively	639216