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3. Hydrolases

3.5 Acting on carbon-nitrogen bonds, other than peptide bonds

3.5.4 In cyclic amidines

ID:	3.5.4.11
Description:	Pterin deaminase.

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UniProtKB Enzyme Link:	UniProtKB 3.5.4.11
BRENDA Enzyme Link:	BRENDA 3.5.4.11
KEGG Enzyme Link:	KEGG3.5.4.11
BioCyc Enzyme Link:	BioCyc 3.5.4.11
ExPASy Enzyme Link:	ExPASy3.5.4.11
EC2PDB Enzyme Link:	EC2PDB 3.5.4.11
ExplorEnz Enzyme Link:	ExplorEnz 3.5.4.11
PRIAM enzyme-specific profiles Link:	PRIAM 3.5.4.11
IntEnz Enzyme Link:	IntEnz 3.5.4.11
MEDLINE Enzyme Link:	MEDLINE 3.5.4.11

RHEA:36055	a 2-amino-4-hydroxypteridine + H(+) + H2O = a 2,4-dihydroxypteridine + NH4(+)
RULE(radius=1)	[:1]:[c;H0;+0:2](:[:3])-[NH2;+0:4].[H+;H0:5].[OH2;+0:6]>>[:1]:[c;H0;+0:2](:[:3])-[OH;+0:6].[NH3;+0:4]
Reaction
Core-to-Core	No scaffolds atoms were exchanged as a result of the reaction

Title	Authors	Date	PubMed ID
A bacterial pterin deaminase.	LEVENBERG B, HAYAISHI O	1959 Apr	13654299
Assignment of pterin deaminase activity to an enzyme of unknown function guided by homology modeling and docking.	Fan H, Hitchcock DS, Seidel RD 2nd, Hillerich B, Lin H, Almo SC, Sali A, Shoichet BK, Raushel FM	2013 Jan 16	23256477

RHEA:11904	2-amino-4-hydroxypteridine + H(+) + H2O = 2,4-dihydroxypteridine + NH4(+)
RULE(radius=1)	[:1]:[c;H0;+0:2](:[:3])-[NH2;+0:4].[H+;H0:5].[OH2;+0:6]>>[:1]:[c;H0;+0:2](:[:3])-[OH;+0:6].[NH3;+0:4]
Reaction
Core-to-Core	No scaffolds atoms were exchanged as a result of the reaction

Title	Authors	Date	PubMed ID
Catabolism of pteridine cofactors. II. A specific pterin deaminase in rat liver.	Rembold H, Simmersbach F	1969 Sep 2	5821022
A bacterial pterin deaminase.	LEVENBERG B, HAYAISHI O	1959 Apr	13654299