3BYR | pdb_00003byr

Mode of Action of a Putative Zinc Transporter CzrB (Zn form)

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	d3byra_	Alpha and beta proteins (a+b)	Alpha-lytic protease prodomain-like	Cation efflux protein cytoplasmic domain-like	Cation efflux protein cytoplasmic domain-like	Putative Zinc transporter CzrB	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cation efflux protein cytoplasmic domain-like	8039594	3000470	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	ZT_dimer	e3byrA1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Cation efflux protein cytoplasmic domain-like (From Topology)	T: Cation efflux protein cytoplasmic domain-like	F: ZT_dimer	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.70.1350	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Cation efflux protein, cytoplasmic domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF16916	Cation efflux protein, cytoplasmic domain (ZT_dimer)	Cation efflux protein, cytoplasmic domain	This entry represents the cytoplasmic domain in Cation Diffusion Facilitator (CDD) transporter proteins including zinc transporters. These proteins are involved in the transport of divalent metal cations across cellular membranes. They facilitate the ...	This entry represents the cytoplasmic domain in Cation Diffusion Facilitator (CDD) transporter proteins including zinc transporters. These proteins are involved in the transport of divalent metal cations across cellular membranes. They facilitate the efflux or sequestration of metals such as zinc, cadmium, iron, manganese, and cobalt, contributing to metal homeostasis and detoxification. These proteins often function as antiporters, coupling the transport of metal ions with protons or other ions. They play crucial roles in various biological processes, including maintaining cellular metal ion balance, protecting cells from metal toxicity, and regulating metal ion concentrations in specific cellular compartments. These proteins include subfamilies like SCL30A, which are involved in zinc transport, and FieF, which is associated with metal detoxification. This domain is the dimerisation region of the whole molecule of zinc transporters since the full-length members form a homodimer during activity. The domain lies within the cytoplasm and exhibits an overall structural similarity with the copper metallochaperone Hah1 Swissprot:O00244, exhibiting an open alpha-beta domain with two alpha helices (H1 and H2) aligned on one side and a three-stranded mixed beta-sheet (S1 to S3) on the other side. The N-terminal domain is represented by Pfam:PF01545 [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CzrB protein	monoatomic cation transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transition metal ion transmembrane transporter activity metal ion transmembrane transporter activity cadmium ion transmembrane transporter activity transmembrane transporter activity zinc ion transmembrane transporter activity metal cation:monoatomic cation antiporter activity proton transmembrane transporter activity zinc efflux antiporter activity secondary active transmembrane transporter activity monoatomic cation transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transition metal ion transmembrane transporter activity metal ion transmembrane transporter activity cadmium ion transmembrane transporter activity transmembrane transporter activity zinc ion transmembrane transporter activity metal cation:monoatomic cation antiporter activity proton transmembrane transporter activity zinc efflux antiporter activity secondary active transmembrane transporter activity antiporter activity zinc:proton antiporter activity metal cation:proton antiporter activity active transmembrane transporter activity iron ion transmembrane transporter activity ferrous iron transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	inorganic ion homeostasis cellular homeostasis chemical homeostasis homeostatic process intracellular monoatomic cation homeostasis intracellular zinc ion homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050291	Cation-efflux pump FieF-like	Family
A	IPR027470	Cation efflux protein, cytoplasmic domain	Domain
A	IPR036837	Cation efflux protein, cytoplasmic domain superfamily	Homologous Superfamily
A	IPR002524	Cation efflux	Family
A	IPR027469	Cation efflux transmembrane domain superfamily	Homologous Superfamily

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.