5.5.1.32	D214A	mutation of active site residue, complete loss of activity	745848	
5.5.1.32	D214E	mutation of active site residue, complete loss of activity	745848	
5.5.1.32	D214N	mutation of active site residue, complete loss of activity	745848	
5.5.1.32	F138S	substitution to the corresponding serine residue from FimC5, mutant produces a mixture of wild-type major product, hapalindole, and the FimC5 major product, fischerindole	745848	
5.5.1.32	W73M/K132M	introduction of methionine resiudes for crystallization	745848	
5.5.1.32	Y101F/F138S	substitution to the corresponding residues from FimC5, mutant produces a mixture of wild-type major product, hapalindole, and the FimC5 major product, fischerindole	745848	
5.5.1.32	Y101S	mutant shows reduces activity	745848