3.5.1.13	C141A	site-directed mutagenesis, inactive mutant	-, 733190	
3.5.1.13	D70G	peripheral anionic site mutant	697867	
3.5.1.13	E41A	site-directed mutagenesis, inactive mutant	-, 733190	
3.5.1.13	K107A	site-directed mutagenesis, inactive mutant	-, 733190	
3.5.1.13	K84A	no activity, part of the catalytic triad	718672	
3.5.1.13	K84A	site-directed mutagenesis, the mutant shows no detectable hydrolysis activity	718672	
3.5.1.13	S159A	no activity, part of the catalytic triad	718672	
3.5.1.13	S159A	site-directed mutagenesis, the mutant shows no detectable hydrolysis activity	718672	
3.5.1.13	S183A	no activity, part of the catalytic triad	718672	
3.5.1.13	S183A	site-directed mutagenesis, the mutant shows no detectable hydrolysis activity	718672