DNAJB2

DnaJ heat shock protein family (Hsp40) member B2 P25686 DNJB2_HUMAN
Protein Coding Chr 2 2q35 Swiss-Prot reviewed Entrez 3300
Mutations
314
CL 39 · Tissue 271
Samples
173
CL 27 · Tissue 143
Peptides
137
unique mutant peptides
Transcripts
3
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations31439271
Samples17327143
Peptides13722117

Function

DNAJB2 · DnaJ heat shock protein family (Hsp40) member B2

This gene is almost exclusively expressed in the brain, mainly in the neuronal layers. It encodes a protein that shows sequence similarity to bacterial DnaJ protein and the yeast homologs. In bacteria, this protein is implicated in protein folding and protein complex dissociation. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2011].

Isoforms & Proteins

3 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000336576 P25686 174 133
ENST00000392086 P25686-2 139 106
ENST00000425450 C9JRD2* 1 1

Gene Properties

Type
Protein Coding
Chromosome
2
Cytoband
2q35
Entrez ID
Aliases
CMT2TDSMA5HMNR5HSJ-1HSJ1HSPF3

Recurrent Mutations

All 133 amino-acid changes on canonical ENST00000336576 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in DNAJB2 · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in DNAJB2 – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Endometrial Carcinoma
0/42 0%
13/612 2%
Glioblastoma
1/98 1%
0/0 0%
Colorectal Carcinoma
6/143 4%
25/3239 1%
Other Solid Cancers
0/94 0%
14/1515 1%
Non-Small Cell Lung Carcinoma
2/304 1%
12/1390 1%
Melanoma
2/210 1%
14/1899 1%
Gastric Carcinoma
3/74 4%
9/1809 0%
Neuroendocrine Tumour
3/154 2%
1/577 0%
Bladder Carcinoma
0/58 0%
5/956 1%
Osteosarcoma
1/45 2%
0/166 0%
Prostate Carcinoma
0/13 0%
10/2105 0%
Burkitts Lymphoma
0/32 0%
1/196 1%
Ewings Sarcoma
0/63 0%
1/262 0%
Hepatocellular Carcinoma
0/46 0%
6/2210 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Thyroid Gland Carcinoma
0/45 0%
4/1592 0%
Glioma
1/52 2%
4/2127 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
4/2534 0%
Squamous Cell Lung Carcinoma
0/57 0%
2/810 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Biliary Tract Carcinoma
1/54 2%
1/950 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
5/2550 0%
Kidney Carcinoma
0/85 0%
3/1862 0%
Neuroblastoma
2/87 2%
0/1331 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Other Sarcomas
0/69 0%
1/699 0%
Other Blood Cancers
0/61 0%
3/2725 0%
Non-Cancerous
1/104 1%
0/830 0%
Ovarian Carcinoma
0/109 0%
1/998 0%

Mutation Distribution

Where DNAJB2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in DNAJB2 were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 314 mutations in DNAJB2

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide