2.3.1.255	E24A	mutation in NatA, decrease in kcat, increase in Km value	736866	
2.3.1.255	E24D	mutation in NatA, decrease in kcat, increase in Km value	736866	
2.3.1.255	E24Q	mutation in NatA, decrease in kcat, increase in Km value	736866	
2.3.1.255	E61A	mutation in NatA, decrease in kcat, increase in Km value	736866	
2.3.1.255	E62A	mutation in NatA, decrease in kcat, increase in Km value	736866	
2.3.1.255	F128I	site-directed mutagenesis, the mutation leads an altered structure and reduced stability, and a dramatic recuction of Nt catalytic activity compared to wild-type	756675	
2.3.1.255	F128L	site-directed mutagenesis, the mutation leads an altered structure and reduced stability, and a dramatic recuction of Nt catalytic activity compared to wild-type	756675	
2.3.1.255	H111A	mutation in NatA, decrease in kcat, Km value similar to wild-type	736866	
2.3.1.255	H20A	mutation in NatA, decrease in kcat, increase in Km value	736866	
2.3.1.255	H72A	mutation in NatA, decrease in kcat, increase in Km value	736866