SLC30A1
Proton-coupled zinc antiporter SLC30A1
Also known as: ZNT1, ZNT1_HUMAN, ZRC1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9Y6M5
- Gene
- SLC30A1
- Ensembl
- ENSG00000170385
- Chromosome
- 1
- Canonical length
- 507 aa
- Protein class
- Metabolic proteins, Predicted membrane proteins, Transporters
- Subcellular location
- Vesicles,Plasma membrane
- Quaternary structure
- Homodimer
OverviewNCBI Gene
Predicted to enable calcium channel inhibitor activity and zinc:proton antiporter activity. Involved in defense response to bacterium; intracellular zinc ion homeostasis; and zinc ion import into organelle. Located in several cellular components, including Golgi apparatus; basolateral plasma membrane; and nuclear membrane. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
507 residues, UniProt reviewed canonical sequence.
>Q9Y6M5|SLC30A1
1 MGCWGRNRGR LLCMLALTFM FMVLEVVVSR VTSSLAMLSD SFHMLSDVLA LVVALVAERF
61 ARRTHATQKN TFGWIRAEVM GALVNAIFLT GLCFAILLEA IERFIEPHEM QQPLVVLGVG
121 VAGLLVNVLG LCLFHHHSGF SQDSGHGHSH GGHGHGHGLP KGPRVKSTRP GSSDINVAPG
181 EQGPDQEETN TLVANTSNSN GLKLDPADPE NPRSGDTVEV QVNGNLVREP DHMELEEDRA
241 GQLNMRGVFL HVLGDALGSV IVVVNALVFY FSWKGCSEGD FCVNPCFPDP CKAFVEIINS
301 THASVYEAGP CWVLYLDPTL CVVMVCILLY TTYPLLKESA LILLQTVPKQ IDIRNLIKEL
361 RNVEGVEEVH ELHVWQLAGS RIIATAHIKC EDPTSYMEVA KTIKDVFHNH GIHATTIQPE
421 FASVGSKSSV VPCELACRTQ CALKQCCGTL PQAPSGKDAE KTPAVSISCL ELSNNLEKKP
481 RRTKAENIPA VVIEIKNMPN KQPESSLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against SLC30A1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 6
- Mean surface accessibility (rSASA)
- 0.46
- Highest tissue expression
- 81 nTPM
Expression across tissuesHPA
Tissue
- liver: 81 nTPM
- bone marrow: 28 nTPM
- duodenum: 27 nTPM
- kidney: 19 nTPM
- small intestine: 19 nTPM
- cervix: 18 nTPM
Single-cell type
- hepatocytes: 106 nCPM
- epididymal efferent duct ciliated cells: 98 nCPM
- endometrial luminal cells: 77 nCPM
- epididymal efferent duct absorptive cells: 77 nCPM
- endometrial glandular cells: 72 nCPM
- late primary spermatocytes: 70 nCPM
Immune cell
- intermediate monocyte: 1.5 nTPM
- basophil: 1.4 nTPM
- classical monocyte: 1.3 nTPM
- non-classical monocyte: 1.2 nTPM
- myeloid DC: 0.9 nTPM
- eosinophil: 0.5 nTPM
Brain region
- choroid plexus: 50 nTPM
- thalamus: 32 nTPM
- medulla oblongata: 29 nTPM
- midbrain: 28 nTPM
- pons: 27 nTPM
- basal ganglia: 27 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.23
- gnomAD pLI
- 0.99
- gnomAD missense Z
- 2.2
- DepMap mean gene effect
- 0.14
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cadmium ion transmembrane transport
- calcium ion import
- defense response to bacterium
- detoxification of cadmium ion
- detoxification of zinc ion
- in utero embryonic development
- intracellular calcium ion homeostasis
- intracellular zinc ion homeostasis
- negative regulation of calcium ion import
- negative regulation of neurotransmitter secretion
- positive regulation of dendritic spine morphogenesis
- regulation of postsynaptic density protein 95 clustering
- zinc export across plasma membrane
- zinc ion import into organelle
- zinc ion transmembrane transport
- zinc ion transport
- negative regulation of zinc ion transmembrane import
Molecular functions
- calcium channel inhibitor activity
- metal ion binding
- zinc ion transmembrane transporter activity
- zinc:proton antiporter activity
Cellular components
- basolateral plasma membrane
- cytoplasm
- cytoplasmic vesicle membrane
- dendrite
- endoplasmic reticulum
- endoplasmic reticulum membrane
- Golgi apparatus
- Golgi membrane
- membrane
- nuclear membrane
- plasma membrane
- postsynaptic density membrane
- postsynaptic density, intracellular component
- Schaffer collateral - CA1 synapse
- T-tubule
- glutamatergic postsynaptic density
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of SLC30A1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads SLC30A1 as an antibody target. Whether an autoantibody or antibody against SLC30A1 could matter depends on whether native SLC30A1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SLC30A1 is annotated at the cell surface, where native SLC30A1 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label SLC30A1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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