NECTIN4
Nectin-4
Also known as: LNIR, NECT4_HUMAN, nectin-4, PRR4, PVRL4
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q96NY8
- Gene
- NECTIN4
- Ensembl
- ENSG00000143217
- Chromosome
- 1
- Canonical length
- 510 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted membrane proteins, Predicted secreted proteins
- Subcellular location
- Plasma membrane
- Secretome location
- Secreted in other tissues
OverviewNCBI Gene
This gene encodes a member of the nectin family. The encoded protein contains two immunoglobulin-like (Ig-like) C2-type domains and one Ig-like V-type domain. It is involved in cell adhesion through trans-homophilic and -heterophilic interactions. It is a single-pass type I membrane protein. The soluble form is produced by proteolytic cleavage at the cell surface by the metalloproteinase ADAM17/TACE. The secreted form is found in both breast tumor cell lines and breast tumor patients. Mutations in this gene are the cause of ectodermal dysplasia-syndactyly syndrome type 1, an autosomal recessive disorder. Alternatively spliced transcript variants have been found but the full-length nature of the variant has not been determined.[provided by RefSeq, Jan 2011]
Canonical amino-acid sequenceUniProt
510 residues, UniProt reviewed canonical sequence.
>Q96NY8|NECTIN4
1 MPLSLGAEMW GPEAWLLLLL LLASFTGRCP AGELETSDVV TVVLGQDAKL PCFYRGDSGE
61 QVGQVAWARV DAGEGAQELA LLHSKYGLHV SPAYEGRVEQ PPPPRNPLDG SVLLRNAVQA
121 DEGEYECRVS TFPAGSFQAR LRLRVLVPPL PSLNPGPALE EGQGLTLAAS CTAEGSPAPS
181 VTWDTEVKGT TSSRSFKHSR SAAVTSEFHL VPSRSMNGQP LTCVVSHPGL LQDQRITHIL
241 HVSFLAEASV RGLEDQNLWH IGREGAMLKC LSEGQPPPSY NWTRLDGPLP SGVRVDGDTL
301 GFPPLTTEHS GIYVCHVSNE FSSRDSQVTV DVLDPQEDSG KQVDLVSASV VVVGVIAALL
361 FCLLVVVVVL MSRYHRRKAQ QMTQKYEEEL TLTRENSIRR LHSHHTDPRS QPEESVGLRA
421 EGHPDSLKDN SSCSVMSEEP EGRSYSTLTT VREIETQTEL LSPGSGRAEE EEDQDEGIKQ
481 AMNHFVQENG TLRAKPTGNG IYINGRGHLVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against NECTIN4 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
- 1
- Mean surface accessibility (rSASA)
- 0.43
- Highest tissue expression
- 110 nTPM
Expression across tissuesHPA
Tissue
- skin: 110 nTPM
- esophagus: 96 nTPM
- vagina: 56 nTPM
- cervix: 41 nTPM
- salivary gland: 32 nTPM
- urinary bladder: 16 nTPM
Single-cell type
- esophageal apical cells: 744 nCPM
- syncytiotrophoblasts: 572 nCPM
- esophageal suprabasal cells: 312 nCPM
- ocular epithelial cells: 247 nCPM
- urothelial cells: 241 nCPM
- suprabasal keratinocytes: 233 nCPM
Immune cell
- neutrophil: 0.8 nTPM
- basophil: 0.4 nTPM
- eosinophil: 0.3 nTPM
- classical monocyte: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
Brain region
- thalamus: 1.5 nTPM
- cerebellum: 1.3 nTPM
- white matter: 1.3 nTPM
- cerebral cortex: 1.2 nTPM
- hippocampal formation: 1.1 nTPM
- hypothalamus: 1.1 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about NECTIN4.
Disease | AllUniProt
Conditions NECTIN4 is implicated in, by any mechanism.
- Ectodermal dysplasia-syndactyly syndrome 1 (EDSS1) MIM:613573
Disease | GeneticClinVar
12 pathogenic / likely-pathogenic of 93 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Ectodermal dysplasia-syndactyly syndrome 1
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)
- 1.72
- gnomAD pLI
- 0.04
- DepMap mean gene effect
- -0.08
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 9% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules
- homophilic cell adhesion via plasma membrane adhesion molecules
- negative regulation of natural killer cell mediated cytotoxicity
Molecular functions
- cell adhesion mediator activity
- identical protein binding
- receptor ligand activity
- virus receptor activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Immunoglobulin subtype 2
- Immunoglobulin domain subtype
- Immunoglobulin-like domain
- Immunoglobulin V-set domain
- CD80-like, immunoglobulin C2-set
- Immunoglobulin-like fold
- Nectin-3/4, second Ig domain
- Immunoglobulin-like domain superfamily
- Nectin and Nectin-like
- Immunoglobulin V-set domain
- CD80-like C2-set immunoglobulin domain
- Immunoglobulin domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NECTIN4 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 NECTIN4 as an antibody target. Whether an autoantibody or antibody against NECTIN4 could matter depends on whether native NECTIN4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NECTIN4 is annotated at the cell surface, where native NECTIN4 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 NECTIN4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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