DEFB124
Beta-defensin 124
Also known as: DB124_HUMAN, DEFB-24
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8NES8
- Gene
- DEFB124
- Ensembl
- ENSG00000180383
- Chromosome
- 20
- Canonical length
- 71 aa
- Protein class
- Predicted secreted proteins
- Secretome location
- Secreted in other tissues
OverviewNCBI Gene
Defensins are cysteine-rich cationic polypeptides that are important in the host immunologic response to invading microorganisms. This antimicrobial protein is secreted and is a member of the beta defensin protein family. Beta defensin genes are found in several clusters throughout the genome, with this gene mapping to a cluster at 20q11.1. The encoded protein may serve to enhance innate immunity in the prostate. [provided by RefSeq, Nov 2014]
Canonical amino-acid sequenceUniProt
71 residues, UniProt reviewed canonical sequence.
>Q8NES8|DEFB124
1 MTQLLLFLVA LLVLGHVPSG RSEFKRCWKG QGACQTYCTR QETYMHLCPD ASLCCLSYAL
61 KPPPVPKHEY ELocalizationUniProt · AlphaFold · HPA
Whether an antibody against DEFB124 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)
- 0.5
- Highest tissue expression
- 1 nTPM
Expression across tissuesHPA
Tissue
- testis: 1 nTPM
- fallopian tube: 0.9 nTPM
- cervix: 0.8 nTPM
- epididymis: 0.8 nTPM
- endometrium: 0.6 nTPM
- adipose tissue: 0.4 nTPM
Single-cell type
- fallopian tube ciliated cells: 17 nCPM
- pericytes: 16 nCPM
- decidual stromal cells: 12 nCPM
- endometrial stromal cells: 11 nCPM
- respiratory ciliated cells: 8 nCPM
- epididymal principal cells: 5.7 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
- choroid plexus: 0.5 nTPM
- midbrain: 0.1 nTPM
- amygdala: 0 nTPM
- basal ganglia: 0 nTPM
- cerebellum: 0 nTPM
- cerebral cortex: 0 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)
- 1.84
- gnomAD pLI
- 0.11
- gnomAD missense Z
- 0.46
- DepMap mean gene effect
- 0.09
- 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
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads DEFB124 as an antibody target. Whether an autoantibody or antibody against DEFB124 could matter depends on whether native DEFB124 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
DEFB124 is annotated as secreted, so native DEFB124 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 DEFB124 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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