4.4.1.28	C25A	mutation reduces the catalytic efficiency and thermal stability of the enzyme	-, 726942	
4.4.1.28	C282A	mutation reduces the catalytic efficiency and thermal stability of the enzyme	-, 726942	
4.4.1.28	C322S	mutation reduces the catalytic efficiency and thermal stability of the enzyme	-, 726942	
4.4.1.28	C329S	mutation reduces the catalytic efficiency and thermal stability of the enzyme	-, 726942	
4.4.1.28	C332A/C329A	complete loss of activity	-, 726942	
4.4.1.28	D198N	mutation resuklts in complete disappearance of the L-cysteine desulfhydrase activity	-, 730535	
4.4.1.28	D323N	about 45% loss of specific activity	726942	
4.4.1.28	H139N	about 10% loss of specific activity	726942	
4.4.1.28	K233N	mutation resuklts in complete disappearance of the L-cysteine desulfhydrase activity	-, 730535	
4.4.1.28	R365G	mutant enzyme retains catalytic activity as well as the wild-type enzyme	-, 730535	
4.4.1.28	Y118A	mutation resuklts in complete disappearance of the L-cysteine desulfhydrase activity	-, 730535	
4.4.1.28	Y59A	mutation resuklts in complete disappearance of the L-cysteine desulfhydrase activity	-, 730535