2.1.1.272	C402A	mutation introduced to disrupt the iron-sulfur center. Mutant lacks any visible coloration and has decreased absorbance between 350 and 420 nm and less than 95% of wild-type activity	722813	
2.1.1.272	C443A	mutation introduced to disrupt the iron-sulfur center. Mutant lacks any visible coloration and has decreased absorbance between 350 and 420 nm and less than 95% of wild-type activity	722813