Seroatlas · Human Serome Atlas

DNAJB13

DnaJ homolog subfamily B member 13

Also known as: DJB13_HUMAN, RSPH16A, TSARG6

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

Protein identityUniProt · HPA

UniProt accession
P59910
Gene
DNAJB13
Ensembl
ENSG00000187726
Chromosome
11
Canonical length
316 aa
Protein class
Disease related genes, Human disease related genes, Predicted intracellular proteins
Subcellular location
Nucleoli,Nucleoli rim,Mitotic chromosome,Vesicles,Plasma membrane,Primary cilium,Primary cilium tip,Mid piece,Principal piece,End piece
Quaternary structure
Homodimer

OverviewNCBI Gene

This gene encodes a member of the heat shock protein 40 co-chaperone family which is produced in large amounts in the testis and is located on the radial spokes of the axoneme in human sperm flagella and other flagellar structures. The encoded protein associates with the sperm annulus, as part of the septin complex, through direct interaction with septin 4, during sperm terminal differentiation. Naturally occurring mutations in this gene are associated with primary ciliary dyskinesia and male infertility. [provided by RefSeq, Apr 2017]

Canonical amino-acid sequenceUniProt

316 residues, UniProt reviewed canonical sequence.

>P59910|DNAJB13
     1  MGQDYYSVLG ITRNSEDAQI KQAYRRLALK HHPLKSNEPS SAEIFRQIAE AYDVLSDPMK
    61  RGIYDKFGEE GLKGGIPLEF GSQTPWTTGY VFHGKPEKVF HEFFGGNNPF SEFFDAEGSE
   121  VDLNFGGLQG RGVKKQDPQV ERDLYLSLED LFFGCTKKIK ISRRVLNEDG YSSTIKDKIL
   181  TIDVKPGWRQ GTRITFEKEG DQGPNIIPAD IIFIVKEKLH PRFRRENDNL FFVNPIPLGK
   241  ALTCCTVEVR TLDDRLLNIP INDIIHPKYF KKVPGEGMPL PEDPTKKGDL FIFFDIQFPT
   301  RLTPQKKQML RQALLT

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against DNAJB13 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)
0.33
Highest tissue expression
50 nTPM

Expression across tissuesHPA

Tissue

  • fallopian tube: 50 nTPM
  • choroid plexus: 25 nTPM
  • testis: 18 nTPM
  • epididymis: 4.9 nTPM
  • cervix: 4.4 nTPM
  • bone marrow: 4.2 nTPM

Single-cell type

  • fallopian tube ciliated cells: 273 nCPM
  • endometrial ciliated cells: 171 nCPM
  • epididymal efferent duct ciliated cells: 141 nCPM
  • respiratory ciliated cells: 137 nCPM
  • ependymal cells: 110 nCPM
  • late primary spermatocytes: 91 nCPM

Immune cell

  • basophil: 0.7 nTPM
  • plasmacytoid DC: 0.7 nTPM
  • memory B-cell: 0.3 nTPM
  • naive CD8 T-cell: 0.3 nTPM
  • eosinophil: 0.2 nTPM
  • gdT-cell: 0.2 nTPM

Brain region

  • choroid plexus: 24 nTPM
  • midbrain: 11 nTPM
  • medulla oblongata: 9.6 nTPM
  • spinal cord: 7.2 nTPM
  • pons: 4.7 nTPM
  • hypothalamus: 4 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about DNAJB13.

Disease | AllUniProt

Conditions DNAJB13 is implicated in, by any mechanism.

Disease | GeneticClinVar

13 pathogenic / likely-pathogenic of 230 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)
0.78
gnomAD pLI
0
gnomAD missense Z
0.68
DepMap mean gene effect
-0.1
DepMap dependency class
selective

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 DNAJB13 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 DNAJB13 as an antibody target. Whether an autoantibody or antibody against DNAJB13 could matter depends on whether native DNAJB13 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

DNAJB13 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 DNAJB13 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/DNAJB13. 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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