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	Carb_anhydrase	e4x5sB1	A: beta meanders	X: Carbonic anhydrase (From Topology)	H: Carbonic anhydrase (From Topology)	T: Carbonic anhydrase	F: Carb_anhydrase	ECOD (1.6)
A	Carb_anhydrase	e4x5sA1	A: beta meanders	X: Carbonic anhydrase (From Topology)	H: Carbonic anhydrase (From Topology)	T: Carbonic anhydrase	F: Carb_anhydrase	ECOD (1.6)

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	cellular metabolic process small molecule metabolic process metabolic process cellular process one-carbon metabolic process	-

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

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.