Seroatlas · Human Serome Atlas

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 DDKKEYFI

LocalizationUniProt · 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.

Disease | GeneticClinVar

1 pathogenic / likely-pathogenic of 91 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

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.

Canonical record: https://seroatlas.com/gene/CADM3. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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