8J7W | pdb_00008j7w

Cryo-EM structure of hZnT7-Fab complex in zinc state 2, determined in heterogeneous conformations- one subunit in an inward-facing zinc-bound and the other in an outward-facing zinc-bound conformation

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Cullin_AB	e8j7wF1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
E	Cullin_AB	e8j7wE1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
D	Cullin_AB	e8j7wD1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
C	Cullin_AB	e8j7wC1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
B	Cullin_AB	e8j7wB1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
A	Cullin_AB	e8j7wA1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
E, F	Heavy Chain	IGHV2	-	zinc transporter 7	SAbDab (2026-04-10)
C, D	Light Chain	IGKV3	Kappa	zinc transporter 7	SAbDab (2026-04-10)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01545	Cation efflux transmembrane domain (Cation_efflux)	Cation efflux transmembrane domain	This entry represents the transmembrane domain at the N-terminal in Cation Diffusion Facilitator (CDF) transporter proteins. These proteins are involved in the transport of divalent metal cations across cellular membranes. They facilitate the efflux ...	This entry represents the transmembrane domain at the N-terminal in Cation Diffusion Facilitator (CDF) transporter proteins. 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 SLC30A, which are involved in zinc transport, and FieF, which is associated with metal detoxification. [1-2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E, F	Heavy chain of YN7114-08 Fab	-	-	-
C, D	Light chain of YN7114-08 Fab	-	-	-
A, B	Zinc transporter 7	monoatomic cation transmembrane transporter activity zinc ion transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transition metal ion transmembrane transporter activity metal ion transmembrane transporter activity transmembrane transporter activity identical protein binding protein binding 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 zinc ion import into organelle transport monoatomic ion transmembrane transport zinc ion transport 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 zinc ion import into organelle transport monoatomic ion transmembrane transport zinc ion transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization cytosol to Golgi apparatus transport intercellular transport zinc ion transmembrane transport transition metal ion transport monoatomic ion transport cellular process zinc ion import into Golgi lumen monoatomic cation transport	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytoplasmic vesicle intracellular vesicle vesicle Golgi apparatus endomembrane system Golgi membrane membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytoplasmic vesicle intracellular vesicle vesicle Golgi apparatus endomembrane system Golgi membrane membrane bounding membrane of organelle organelle membrane organelle subcompartment sarcoplasm endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum sarcoplasmic reticulum sarcoplasmic reticulum membrane endoplasmic reticulum membrane Golgi cis cisterna membrane Golgi cisterna membrane Golgi apparatus subcompartment Golgi cisterna Golgi cis cisterna Golgi stack perinuclear region of cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR058533	Cation efflux protein, transmembrane domain	Domain
A, B	IPR045316	Zinc transporter Msc2-like	Family
A, B	IPR002524	Cation efflux	Family
A, B	IPR027469	Cation efflux transmembrane domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q8NEW0	esophageal cancer breast cancer glioblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Crohn disease malignant pancreatic neoplasm pancreatic ductal adenocarcinoma neoplasm of esophagus pancreatic intraductal papillary-mucinous carcinoma

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier (SLC) Transporter Superfamily	ZnT7 Zn²⁺/H⁺ antiporter, SLC30A7 family, full-length, apo form, outward facing dimer (OF-OF)

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.