Annotations: 4X5S

The crystal structure of an alpha carbonic anhydrase from the extremophilic bacterium Sulfurihydrogenibium azorense.

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Carbonic anhydrase	8065121	3001672	SCOP2B (2022-06-29)
A	SCOP2 Family	Carbonic anhydrase	8065120	4002732	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Carbonic anhydrase	8065121	3001672	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	WD40	e4x5sB1	A: a/b three-layered sandwiches	X: OB-fold	H: Phage tail fiber protein trimerization domain	T: 7-bladed	F: WD40	ECOD (v294.1)
A	WD40	e4x5sA1	A: a/b three-layered sandwiches	X: OB-fold	H: Phage tail fiber protein trimerization domain	T: 7-bladed	F: WD40	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.10.200.10	Alpha Beta	Roll	Carbonic Anhydrase II	Alpha carbonic anhydrase	CATH (4.3.0)
A	3.10.200.10	Alpha Beta	Roll	Carbonic Anhydrase II	Alpha carbonic anhydrase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00194	Eukaryotic-type carbonic anhydrase (Carb_anhydrase)	Eukaryotic-type carbonic anhydrase		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Carbonic anhydrase (Carbonate dehydratase)	cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding carbonate dehydratase activity hydro-lyase activity lyase activity catalytic activity carbon-oxygen lyase activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR041891	Carbonic anhydrase, prokaryotic-like	Family
A, B	IPR018338	Carbonic anhydrase, alpha-class, conserved site	Conserved Site
A, B	IPR001148	Alpha carbonic anhydrase domain	Domain
A, B	IPR036398	Alpha carbonic anhydrase domain superfamily	Homologous Superfamily
A, B	IPR023561	Carbonic anhydrase, alpha-class	Family

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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.