Seroatlas · Human Serome Atlas

CAMP

Cathelicidin antimicrobial peptide

Also known as: CAMP_HUMAN, CAP18, FALL-39, FALL39, LL37

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P49913
Gene
CAMP
Ensembl
ENSG00000164047
Chromosome
3
Canonical length
170 aa
Protein class
Plasma proteins, Predicted secreted proteins, Transporters
Secretome location
Secreted to blood
Quaternary structure
Homotrimer

OverviewNCBI Gene

This gene encodes a member of an antimicrobial peptide family, characterized by a highly conserved N-terminal signal peptide containing a cathelin domain and a structurally variable cationic antimicrobial peptide, which is produced by extracellular proteolysis from the C-terminus. The protein plays an important role in innate immunity defense against viruses. In addition to its antibacterial, antifungal, and antiviral activities, the encoded protein functions in cell chemotaxis, immune mediator induction, and inflammatory response regulation. [provided by RefSeq, Sep 2021]

Canonical amino-acid sequenceUniProt

170 residues, UniProt reviewed canonical sequence.

>P49913|CAMP
     1  MKTQRDGHSL GRWSLVLLLL GLVMPLAIIA QVLSYKEAVL RAIDGINQRS SDANLYRLLD
    61  LDPRPTMDGD PDTPKPVSFT VKETVCPRTT QQSPEDCDFK KDGLVKRCMG TVTLNQARGS
   121  FDISCDKDNK RFALLGDFFR KSKEKIGKEF KRIVQRIKDF LRNLVPRTES

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against CAMP 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
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.43
Highest tissue expression
2,752 nTPM

Expression across tissuesHPA

Tissue

  • bone marrow: 2,752 nTPM
  • epididymis: 321 nTPM
  • spleen: 28 nTPM
  • salivary gland: 14 nTPM
  • thymus: 9.9 nTPM
  • lung: 9.6 nTPM

Single-cell type

  • epididymal principal cells: 2,707 nCPM
  • neutrophil progenitors: 1,430 nCPM
  • neutrophils: 240 nCPM
  • salivary acinar cells: 137 nCPM
  • salivary myoepithelial cells: 84 nCPM
  • tuft cells: 81 nCPM

Immune cell

  • neutrophil: 338 nTPM
  • total PBMC: 87 nTPM
  • eosinophil: 85 nTPM
  • basophil: 38 nTPM
  • non-classical monocyte: 28 nTPM
  • intermediate monocyte: 9.8 nTPM

Brain region

  • cerebral cortex: 0.4 nTPM
  • medulla oblongata: 0.4 nTPM
  • pons: 0.2 nTPM
  • basal ganglia: 0.1 nTPM
  • hippocampal formation: 0.1 nTPM
  • midbrain: 0.1 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about CAMP.

Disease | ImmuneIEDB

Conditions an epitope on CAMP was assayed in.

Disease | AutoantibodyPubMed

Conditions in which antibodies against CAMP are reported. Each links to that disease's full target list.

ReferencesPubMed · IEDB

Publications for CAMP from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Reference: AutoantibodyPubMed

11 publications

Show 6 more

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

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)
1.55
gnomAD pLI
0
gnomAD missense Z
0.16
DepMap mean gene effect
-0.01
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% 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

  • Cystatin superfamily
  • Cathelicidin
  • Cathelicidin-like
  • Cathelicidin, conserved site
  • Cathelicidin, antimicrobial peptide, C-terminal
  • LPS binding domain of CAP18 (C terminal)

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads CAMP as an antibody target. Whether an autoantibody or antibody against CAMP could matter depends on whether native CAMP is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

CAMP is annotated as secreted, so native CAMP circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Annotation status

The present source text does not explicitly label CAMP as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/CAMP. 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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