3.1.2.12	C26A	site-directed mutagenesis, the YeiG mutant shows wild-type activity	-, 665750	
3.1.2.12	C54A	site-directed mutagenesis, the YeiG mutant shows wild-type activity	-, 665750	
3.1.2.12	C54S	shows a 4fold decrease in alpha-naphthyl butyrate activity. Is insensitive to the inhibitor N-ethylmaleimide	710495	
3.1.2.12	C59S	mutant enzyme is highly active in hydrolysis of 4 -methylumbelliferyl acetate	682315	
3.1.2.12	C59S	site-directed mutagenesis, the mutant shows no hydrolase activity with S-formylglutathione, but with 4-methylumbelliferyl acetate in contrast to the wild-type enzyme	666081	
3.1.2.12	C60A	Km and kcat(4-nitrophenyl acetate) slightly decreased compared to wild-type	731220	
3.1.2.12	C60H/W197I	mutant shows significantly decreased activity	691005	
3.1.2.12	C60K/W197I	the mutation results in a further enhancement of the rates of phosphorylation with paraoxon but does not affect the dephosphorylation of the enzyme	691005	
3.1.2.12	C60Q/W197I	mutant shows significantly decreased activity	691005	
3.1.2.12	C60R/W197I	the mutation results in a further enhancement of the rates of phosphorylation with paraoxon but does not affect the dephosphorylation of the enzyme	691005