CADM3
Cell adhesion molecule 3
Also known as: BIgR, CADM3_HUMAN, FLJ10698, IGSF4B, Necl-1, NECL1, SynCAM3, TSLL1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8N126
- Gene
- CADM3
- Ensembl
- ENSG00000162706
- Chromosome
- 1
- Canonical length
- 398 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins, Predicted membrane proteins
- Secretome location
- Intracellular and membrane
- Quaternary structure
- Homodimer
OverviewNCBI Gene
The protein encoded by this gene is a calcium-independent cell-cell adhesion protein that can form homodimers or heterodimers with other nectin proteins. The encoded protein has both homophilic and heterophilic cell-cell adhesion activity. This gene is reported to be a tumor suppressor gene. [provided by RefSeq, Oct 2016]
Canonical amino-acid sequenceUniProt
398 residues, UniProt reviewed canonical sequence.
>Q8N126|CADM3
1 MGAPAASLLL LLLLFACCWA PGGANLSQDD SQPWTSDETV VAGGTVVLKC QVKDHEDSSL
61 QWSNPAQQTL YFGEKRALRD NRIQLVTSTP HELSISISNV ALADEGEYTC SIFTMPVRTA
121 KSLVTVLGIP QKPIITGYKS SLREKDTATL NCQSSGSKPA ARLTWRKGDQ ELHGEPTRIQ
181 EDPNGKTFTV SSSVTFQVTR EDDGASIVCS VNHESLKGAD RSTSQRIEVL YTPTAMIRPD
241 PPHPREGQKL LLHCEGRGNP VPQQYLWEKE GSVPPLKMTQ ESALIFPFLN KSDSGTYGCT
301 ATSNMGSYKA YYTLNVNDPS PVPSSSSTYH AIIGGIVAFI VFLLLIMLIF LGHYLIRHKG
361 TYLTHEAKGS DDAPDADTAI INAEGGQSGG DDKKEYFILocalizationUniProt · AlphaFold · HPA
Whether an antibody against CADM3 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)
- 0.39
- Highest tissue expression
- 323 nTPM
Expression across tissuesHPA
Tissue
- cerebellum: 323 nTPM
- cerebral cortex: 160 nTPM
- basal ganglia: 130 nTPM
- hypothalamus: 97 nTPM
- amygdala: 85 nTPM
- hippocampal formation: 85 nTPM
Single-cell type
- retinal bipolar cells: 167 nCPM
- schwann cells: 132 nCPM
- brain excitatory neurons: 110 nCPM
- brain inhibitory neurons: 83 nCPM
- other brain neurons: 71 nCPM
- retinal amacrine cells: 67 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- cerebellum: 349 nTPM
- cerebral cortex: 331 nTPM
- hippocampal formation: 297 nTPM
- pons: 292 nTPM
- basal ganglia: 254 nTPM
- amygdala: 244 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CADM3.
Disease | AllUniProt
Conditions CADM3 is implicated in, by any mechanism.
- Charcot-Marie-Tooth disease, axonal, type 2FF (CMT2FF) MIM:619519
Disease | GeneticClinVar
1 pathogenic / likely-pathogenic of 91 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Charcot-Marie-Tooth disease, axonal, type 2FF
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)
- 0.36
- gnomAD pLI
- 0.93
- gnomAD missense Z
- 1.69
- DepMap mean gene effect
- 0.06
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Neurexin/syndecan/glycophorin C
- Immunoglobulin subtype 2
- Immunoglobulin domain subtype
- Immunoglobulin-like domain
- Immunoglobulin V-set domain
- CD80-like, immunoglobulin C2-set
- Immunoglobulin-like fold
- Immunoglobulin-like domain superfamily
- Immunoglobulin V-set domain
- CD80-like C2-set immunoglobulin domain
- Immunoglobulin domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CADM3 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 CADM3 as an antibody target. Whether an autoantibody or antibody against CADM3 could matter depends on whether native CADM3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CADM3 is annotated at the cell surface, where native CADM3 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 CADM3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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