Annotations: 5BZ2

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Carb_anhydrase	e5bz2A1	A: beta barrels	X: ACP-like	H: Acyl-carrier protein (ACP)	T: Acyl-carrier protein (ACP)	F: Carb_anhydrase	ECOD (v294.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1530.20	Mainly Alpha	Up-down Bundle	Na+/H+ antiporter like fold		CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF00999	Sodium/hydrogen exchanger, transmembrane (Na_H_Exchanger)	Sodium/hydrogen exchanger, transmembrane	Na/H antiporters are key transporters in maintaining the pH of actively metabolising cells. The molecular mechanisms of antiport are unclear. These antiporters contain 10-12 transmembrane regions (M) at the amino-terminus and a large cytoplasmic regi ...	Na/H antiporters are key transporters in maintaining the pH of actively metabolising cells. The molecular mechanisms of antiport are unclear. These antiporters contain 10-12 transmembrane regions (M) at the amino-terminus and a large cytoplasmic region at the carboxyl terminus. The transmembrane regions M3-M12 share identity with other members of the family. The M6 and M7 regions are highly conserved. Thus, this is thought to be the region that is involved in the transport of sodium and hydrogen ions. The cytoplasmic region has little similarity throughout the family. This entry represents the transmembrane region.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Na(+)/H(+) antiporter	antiporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity secondary active transmembrane transporter activity	monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport cellular process monoatomic cation transport establishment of localization sodium ion transport metal ion transport	cellular anatomical structure membrane

Chains	Accession	Name	Type
A	IPR006153	Cation/H+ exchanger, transmembrane domain	Domain
A	IPR038770	Sodium/solute symporter superfamily	Homologous Superfamily

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Alpha-helical polytopic	Monovalent cation-proton antiporter	Sodium-proton antiporter 1

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Antiporters	NapA Na⁺/H⁺ antiporter, outward facing

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.

5BZ2 | pdb_00005bz2