DNAJC28
DnaJ homolog subfamily C member 28
Also known as: C21orf55, C21orf78, DJC28_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9NX36
- Gene
- DNAJC28
- Ensembl
- ENSG00000177692
- Chromosome
- 21
- Canonical length
- 388 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Nuclear bodies,Centrosome,Cytosol
OverviewNCBI Gene
This gene encodes a member of the DnaJ heat shock protein family. The encoded protein, which contains a conserved N-terminal DnaJ domain, is thought to play a role in protein folding or act as a molecular chaperone protein. [provided by RefSeq, Oct 2016]
Canonical amino-acid sequenceUniProt
388 residues, UniProt reviewed canonical sequence.
>Q9NX36|DNAJC28
1 MNTMYVMMAQ ILRSHLIKAT VIPNRVKMLP YFGIIRNRMM STHKSKKKIR EYYRLLNVEE
61 GCSADEVRES FHKLAKQYHP DSGSNTADSA TFIRIEKAYR KVLSHVIEQT NASQSKGEEE
121 EDVEKFKYKT PQHRHYLSFE GIGFGTPTQR EKHYRQFRAD RAAEQVMEYQ KQKLQSQYFP
181 DSVIVKNIRQ SKQQKITQAI ERLVEDLIQE SMAKGDFDNL SGKGKPLKKF SDCSYIDPMT
241 HNLNRILIDN GYQPEWILKQ KEISDTIEQL REAILVSRKK LGNPMTPTEK KQWNHVCEQF
301 QENIRKLNKR INDFNLIVPI LTRQKVHFDA QKEIVRAQKI YETLIKTKEV TDRNPNNLDQ
361 GEGEKTPEIK KGFLNWMNLW KFIKIRSFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against DNAJC28 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
- Unknown
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.46
- Highest tissue expression
- 6.3 nTPM
Expression across tissuesHPA
Tissue
- testis: 6.3 nTPM
- heart muscle: 2.6 nTPM
- cerebellum: 2.5 nTPM
- cerebral cortex: 2.5 nTPM
- skeletal muscle: 2.5 nTPM
- kidney: 2.4 nTPM
Single-cell type
- bergmann glia: 5.5 nCPM
- choroid plexus epithelial cells: 5.1 nCPM
- brain excitatory neurons: 4.4 nCPM
- proximal tubule cells: 4.4 nCPM
- other brain neurons: 4.1 nCPM
- brain inhibitory neurons: 4 nCPM
Immune cell
- NK-cell: 0.2 nTPM
- classical monocyte: 0.1 nTPM
- eosinophil: 0.1 nTPM
- neutrophil: 0.1 nTPM
- plasmacytoid DC: 0.1 nTPM
- basophil: 0 nTPM
Brain region
- cerebral cortex: 3.2 nTPM
- cerebellum: 2.9 nTPM
- pons: 2.7 nTPM
- white matter: 2.7 nTPM
- thalamus: 2.6 nTPM
- amygdala: 2.5 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)
- 1.39
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.02
- DepMap mean gene effect
- 0.01
- 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).
Protein domainsUniProt · Pfam · InterPro
- DnaJ domain
- Chaperone J-domain superfamily
- DnaJ domain
- DnaJ homologue, subfamily C, member 28, conserved domain
- DnaJ homolog subfamily C member 28
- DnaJ homologue, subfamily C, member 28, conserved domain
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads DNAJC28 as an antibody target. Whether an autoantibody or antibody against DNAJC28 could matter depends on whether native DNAJC28 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
DNAJC28 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 DNAJC28 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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