4BWZ | pdb_00004bwz

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Na_H_Exchanger	e4bwzA1	A: alpha complex topology	X: Cation-proton antiporter	H: Cation-proton antiporter (CPA) (From Topology)	T: Cation-proton antiporter (CPA)	F: Na_H_Exchanger	ECOD (1.6)

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	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 cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	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

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.

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