SERPINB6
Serpin B6
Also known as: CAP, DFNB91, PI6, PTI, SPB6_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P35237
- Gene
- SERPINB6
- Ensembl
- ENSG00000124570
- Chromosome
- 6
- Canonical length
- 376 aa
- Protein class
- Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Centrosome
OverviewNCBI Gene
The protein encoded by this gene is a member of the serpin (serine proteinase inhibitor) superfamily, and ovalbumin(ov)-serpin subfamily. It was originally discovered as a placental thrombin inhibitor. The mouse homolog was found to be expressed in the hair cells of the inner ear. Mutations in this gene are associated with nonsyndromic progressive hearing loss, suggesting that this serpin plays an important role in the inner ear in the protection against leakage of lysosomal content during stress, and that loss of this protection results in cell death and sensorineural hearing loss. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2010]
Canonical amino-acid sequenceUniProt
376 residues, UniProt reviewed canonical sequence.
>P35237|SERPINB6
1 MDVLAEANGT FALNLLKTLG KDNSKNVFFS PMSMSCALAM VYMGAKGNTA AQMAQILSFN
61 KSGGGGDIHQ GFQSLLTEVN KTGTQYLLRM ANRLFGEKSC DFLSSFRDSC QKFYQAEMEE
121 LDFISAVEKS RKHINTWVAE KTEGKIAELL SPGSVDPLTR LVLVNAVYFR GNWDEQFDKE
181 NTEERLFKVS KNEEKPVQMM FKQSTFKKTY IGEIFTQILV LPYVGKELNM IIMLPDETTD
241 LRTVEKELTY EKFVEWTRLD MMDEEEVEVS LPRFKLEESY DMESVLRNLG MTDAFELGKA
301 DFSGMSQTDL SLSKVVHKSF VEVNEEGTEA AAATAAIMMM RCARFVPRFC ADHPFLFFIQ
361 HSKTNGILFC GRFSSPLocalizationUniProt · AlphaFold · HPA
Whether an antibody against SERPINB6 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.23
- Highest tissue expression
- 266 nTPM
Expression across tissuesHPA
Tissue
- pancreas: 266 nTPM
- tongue: 249 nTPM
- heart muscle: 234 nTPM
- skeletal muscle: 228 nTPM
- small intestine: 198 nTPM
- testis: 194 nTPM
Single-cell type
- late spermatids: 1,571 nCPM
- esophageal apical cells: 982 nCPM
- pancreatic acinar cells: 691 nCPM
- late primary spermatocytes: 596 nCPM
- early spermatids: 596 nCPM
- extravillous trophoblasts: 484 nCPM
Immune cell
- eosinophil: 122 nTPM
- intermediate monocyte: 108 nTPM
- classical monocyte: 105 nTPM
- myeloid DC: 104 nTPM
- non-classical monocyte: 91 nTPM
- total PBMC: 91 nTPM
Brain region
- white matter: 94 nTPM
- medulla oblongata: 92 nTPM
- basal ganglia: 83 nTPM
- midbrain: 81 nTPM
- spinal cord: 80 nTPM
- pons: 80 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about SERPINB6.
Disease | AllUniProt
Conditions SERPINB6 is implicated in, by any mechanism.
- Deafness, autosomal recessive, 91 (DFNB91) MIM:613453
Disease | GeneticClinVar
4 pathogenic / likely-pathogenic of 217 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Autosomal recessive nonsyndromic hearing loss 91
- Rare genetic deafness
- Melanoma
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)
- 1.12
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.06
- DepMap mean gene effect
- -0.01
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% 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
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads SERPINB6 as an antibody target. Whether an autoantibody or antibody against SERPINB6 could matter depends on whether native SERPINB6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SERPINB6 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label SERPINB6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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