Seroatlas · Human Serome Atlas

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 GRFSSP

LocalizationUniProt · 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.

Disease | GeneticClinVar

4 pathogenic / likely-pathogenic of 217 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)
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.

Canonical record: https://seroatlas.com/gene/SERPINB6. 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).

Loading the interactive Seroatlas protein explorer...