2I9U

Crystal Structure of Guanine Deaminase from C. acetobutylicum with bound guanine in the active site

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2i9ua1	All beta proteins	Composite domain of metallo-dependent hydrolases	Composite domain of metallo-dependent hydrolases	SAH/MTA deaminase-like	Guanine deaminase	(Clostridium acetobutylicum ATCC 824 ) [TaxId: 272562 ],	SCOPe (2.08)
A	d2i9ua2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Metallo-dependent hydrolases	SAH/MTA deaminase-like	Guanine deaminase	(Clostridium acetobutylicum ATCC 824 ) [TaxId: 272562 ],	SCOPe (2.08)
B	d2i9ub1	All beta proteins	Composite domain of metallo-dependent hydrolases	Composite domain of metallo-dependent hydrolases	SAH/MTA deaminase-like	Guanine deaminase	(Clostridium acetobutylicum ATCC 824 ) [TaxId: 272562 ],	SCOPe (2.08)
B	d2i9ub2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Metallo-dependent hydrolases	SAH/MTA deaminase-like	Guanine deaminase	(Clostridium acetobutylicum ATCC 824 ) [TaxId: 272562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	SAH/MTA deaminase-like	8022057	4002800	SCOP2 (2022-06-29)
A	SCOP2 Family	SAH/MTA deaminase-like	8022059	4002846	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Composite domain of metallo-dependent hydrolases	8034437	3000176	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Metallo-dependent hydrolases	8034439	3000428	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Composite domain of metallo-dependent hydrolases	8034437	3000176	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Composite domain of metallo-dependent hydrolases	8034437	3000176	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Metallo-dependent hydrolases	8034439	3000428	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	GDEase_1	e2i9uA1	A: beta sandwiches	X: Composite domain of metallo-dependent hydrolases (From Topology)	H: Composite domain of metallo-dependent hydrolases (From Topology)	T: Composite domain of metallo-dependent hydrolases	F: GDEase_1	ECOD (1.6)
A	Amidohydro_1_N	e2i9uA2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Amidohydro_1_N	ECOD (1.6)
B	GDEase_1	e2i9uB1	A: beta sandwiches	X: Composite domain of metallo-dependent hydrolases (From Topology)	H: Composite domain of metallo-dependent hydrolases (From Topology)	T: Composite domain of metallo-dependent hydrolases	F: GDEase_1	ECOD (1.6)
B	Amidohydro_1_N	e2i9uB2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Amidohydro_1_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
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	Cytosine/guanine deaminase related protein	cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding guanine deaminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines hydrolase activity catalytic activity deaminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	guanine 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 nucleobase-containing compound metabolic process guanine catabolic process nucleobase-containing small molecule metabolic process nucleobase catabolic process nucleobase metabolic process small molecule metabolic process metabolic process guanine 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 nucleobase-containing compound metabolic process guanine catabolic process nucleobase-containing small molecule metabolic process nucleobase catabolic process nucleobase metabolic process small molecule metabolic process metabolic process cellular process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR014311	Guanine 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	IPR051607	Metallo-dependent Hydrolases	Family

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.