1.7.1.13	C190A	complete loss of activity	724767	
1.7.1.13	D197N	complete loss of activity	724767	
1.7.1.13	E230Q	about 4% of wild-type activity for natural substrate 2-amino-5-cyanopyrrolo[2,3-d]pyrimidin-4-one	724767	
1.7.1.13	F228W	about 8% of wild-type activity for natural substrate 2-amino-5-cyanopyrrolo[2,3-d]pyrimidin-4-one	724767	
1.7.1.13	H229A	about 15% of wild-type activity for natural substrate 2-amino-5-cyanopyrrolo[2,3-d]pyrimidin-4-one	724767	
1.7.1.13	Q89A	poor activity	724767	
1.7.1.13	Q89L	poor activity	724767	
1.7.1.13	S90A	about 10% of wild-type activity for natural substrate 2-amino-5-cyanopyrrolo[2,3-d]pyrimidin-4-one	724767	
1.7.1.13	C99A	mutant does not compromise enzyme activity. Contrary to wild-type, peroxide-induced inactivation is irreversible	-, 742061	
1.7.1.13	C99S	mutant does not compromise enzyme activity. Contrary to wild-type, peroxide-induced inactivation is irreversible	-, 742061