HMGB1

High mobility group box 1 P09429 HMGB1_HUMAN
Protein Coding Chr 13 13q12.3 Swiss-Prot reviewed Entrez 3146
Mutations
461
CL 65 · Tissue 384
Samples
88
CL 15 · Tissue 72
Peptides
68
unique mutant peptides
Transcripts
6
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
Mutations46165384
Samples881572
Peptides681459

Function

HMGB1 · High mobility group box 1

This gene encodes a protein that belongs to the High Mobility Group-box superfamily. The encoded non-histone, nuclear DNA-binding protein regulates transcription, and is involved in organization of DNA. This protein plays a role in several cellular processes, including inflammation, cell differentiation and tumor cell migration. Multiple pseudogenes of this gene have been identified. Alternative splicing results in multiple transcript variants that encode the same protein. [provided by RefSeq, Sep 2015].

Isoforms & Proteins

6 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
ENST00000341423 P09429 92 63
ENST00000339872 P09429 87 62
ENST00000399494 P09429 87 62
ENST00000405805 P09429 87 62
ENST00000326004 Q5T7C4* 54 44
ENST00000399489 Q5T7C4* 54 44

Gene Properties

Type
Protein Coding
Chromosome
13
Cytoband
13q12.3
Entrez ID
Aliases
HMG-1HMG1HMG3SBP-1

Recurrent Mutations

All 63 amino-acid changes on canonical ENST00000341423 · 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 HMGB1 · 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 HMGB1 – 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
3/40 8%
0/0 0%
Hodgkins Lymphoma
0/16 0%
3/122 2%
Endometrial Carcinoma
2/42 5%
8/612 1%
Chondrosarcoma
0/14 0%
1/75 1%
Glioblastoma
1/98 1%
0/0 0%
Thyroid Gland Carcinoma
1/45 2%
12/1592 1%
Burkitts Lymphoma
1/32 3%
0/196 0%
Neuroendocrine Tumour
2/154 1%
1/577 0%
Meningioma
0/3 0%
1/252 0%
Colorectal Carcinoma
2/143 1%
11/3239 0%
Hepatocellular Carcinoma
0/46 0%
7/2210 0%
Bladder Carcinoma
0/58 0%
3/956 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Non-Cancerous
0/104 0%
2/830 0%
Melanoma
1/210 0%
3/1899 0%
Gastric Carcinoma
0/74 0%
3/1809 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Non-Small Cell Lung Carcinoma
1/304 0%
1/1390 0%
Other Solid Cancers
0/94 0%
2/1515 0%
Kidney Carcinoma
0/85 0%
2/1862 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Ovarian Carcinoma
1/109 1%
0/998 0%
Breast Carcinoma
0/144 0%
2/3264 0%
Pancreatic Carcinoma
0/89 0%
1/1611 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
Glioma
0/52 0%
1/2127 0%
B-Lymphoblastic Leukemia
0/55 0%
1/2640 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
1/2534 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
1/2550 0%

Mutation Distribution

Where HMGB1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in HMGB1 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 461 mutations in HMGB1

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