2.1.1.208	E234A	20% of wild-type activity	709512	
2.1.1.208	E234Q	70% of wild-type activity	709512	
2.1.1.208	N139A	less than 5% of wild-type activity	709512	
2.1.1.208	N262A	less than 5% of wild-type activity	709512	
2.1.1.208	N262Q	60% of wild-type activity	709512	
2.1.1.208	R145A	less than 5% of wild-type activity	709512	
2.1.1.208	T135V	110% of wild-type activity	709512