1.2.1.32	E268A	site-directed mutagenesis, catalytically inactive mutant, formation of an enzyme-substrate adduct in the E268A mutant investigated by mass spectrometry	-, 743338	
1.2.1.32	N155A	the mutant shows very low activity compared to the wild type enzyme	763259	
1.2.1.32	N155D	the mutant shows very low activity compared to the wild type enzyme	763259	
1.2.1.32	N155Q	the mutant shows very low activity compared to the wild type enzyme	763259	
1.2.1.32	N169A	inactive	763259	
1.2.1.32	N169D	inactive	763259	
1.2.1.32	N169Q	inactive	763259	
1.2.1.32	R109A	the variant has a similar turnover number but approximately 160fold increased Km as compared with wild type enzyme	763259	
1.2.1.32	R451A	inactive	763259