Annotations: 3NQB

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Fer4_13	e3nqbB4	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Fer4_13	ECOD (v294.1)
A	Amidohydro_1	e3nqbA2	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: TIM barrels	T: TIM barrels	F: Amidohydro_1	ECOD (v294.1)
A	Trypsin,Thrombin_light	e3nqbA3	A: a/b three-layered sandwiches	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Trypsin,Thrombin_light	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.30.40.10	Mainly Beta	Roll	Urease, subunit C	domain 1	CATH (4.3.0)
B	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)
A	2.30.40.10	Mainly Beta	Roll	Urease, subunit C	domain 1	CATH (4.3.0)
A	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13382	Adenine deaminase C-terminal domain (Adenine_deam_C)	Adenine deaminase C-terminal domain	-	Family
A, B	PF01979	Amidohydrolase family (Amidohydro_1)	Amidohydrolase family	This family of enzymes are a a large metal dependent hydrolase superfamily [1]. The family includes Adenine deaminase EC:3.5.4.2 that hydrolyses adenine to form hypoxanthine and ammonia. Adenine deaminases reaction is important for adenine utilisatio ...	This family of enzymes are a a large metal dependent hydrolase superfamily [1]. The family includes Adenine deaminase EC:3.5.4.2 that hydrolyses adenine to form hypoxanthine and ammonia. Adenine deaminases reaction is important for adenine utilisation as a purine and also as a nitrogen source [2]. This family also includes dihydroorotase and N-acetylglucosamine-6-phosphate deacetylases, EC:3.5.1.25 These enzymes catalyse the reaction N-acetyl-D-glucosamine 6-phosphate + H2O <=> D-glucosamine 6-phosphate + acetate. This family includes the catalytic domain of urease alpha subunit [3]. Dihydroorotases (EC:3.5.2.3) are also included [4-5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Adenine deaminase 2	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines adenine deaminase activity hydrolase activity catalytic activity deaminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	catabolic process purine nucleobase metabolic process primary metabolic process purine-containing compound catabolic process purine nucleobase catabolic process purine-containing compound metabolic process adenine catabolic process nucleobase-containing compound metabolic process nucleobase catabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process adenine metabolic process small molecule metabolic process metabolic process catabolic process purine nucleobase metabolic process primary metabolic process purine-containing compound catabolic process purine nucleobase catabolic process purine-containing compound metabolic process adenine catabolic process nucleobase-containing compound metabolic process nucleobase catabolic process nucleobase-containing small molecule metabolic process nucleobase metabolic process adenine metabolic process small molecule metabolic process metabolic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006679	Adenine deaminase	Family
A, B	IPR006680	Amidohydrolase-related	Domain
A, B	IPR011059	Metal-dependent hydrolase, composite domain superfamily	Homologous Superfamily
A, B	IPR032466	Metal-dependent hydrolase	Homologous Superfamily
A, B	IPR026912	Adenine deaminase C-terminal domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.