2.8.1.6	C128A	no enzyme activity	645607	
2.8.1.6	C128A	reduced cysteine desulfurase activity	645609	
2.8.1.6	C128A	reduced enzyme activity	645602	
2.8.1.6	C188A	cysteine desulfurase activity is reduced to 70% of the wild-type activity	645609	
2.8.1.6	C188A	no enzyme activity	645607	
2.8.1.6	C188A	reduced enzyme activity	645602	
2.8.1.6	C188S	enzyme is insoluble	645606	
2.8.1.6	C276A	normal enzyme activity	645602	
2.8.1.6	C288A	normal enzyme activity	645602	
2.8.1.6	C288T	normal enzyme activity	645606