HAPLN4

Hyaluronan and proteoglycan link protein 4 Q86UW8 HPLN4_HUMAN
Protein Coding Chr 19 19p13.11 Swiss-Prot reviewed Entrez 404037
Mutations
302
CL 66 · Tissue 224
Samples
291
CL 63 · Tissue 220
Peptides
203
unique mutant peptides
Transcripts
1
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
Mutations30266224
Samples29163220
Peptides20341161

Function

HAPLN4 · Hyaluronan and proteoglycan link protein 4

Predicted to enable hyaluronic acid binding activity. Predicted to be involved in central nervous system development and skeletal system development. Predicted to be located in extracellular region. Predicted to be active in extracellular matrix. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

1 transcript · 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
ENST00000291481 Q86UW8 302 203

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19p13.11
Entrez ID
Aliases
BRAL2

Recurrent Mutations

All 203 amino-acid changes on canonical ENST00000291481 · 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 HAPLN4 · 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 HAPLN4 – 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
Acute Monocytic Leukemia
0/1 0%
1/25 4%
Endometrial Carcinoma
7/42 17%
13/612 2%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Colorectal Carcinoma
6/143 4%
51/3239 2%
Melanoma
8/210 4%
26/1899 1%
Gastric Carcinoma
2/74 3%
21/1809 1%
Chondrosarcoma
1/14 7%
0/75 0%
Germ Cell Tumour
2/25 8%
0/169 0%
Glioblastoma
1/98 1%
0/0 0%
Ovarian Carcinoma
2/109 2%
9/998 1%
Neuroendocrine Tumour
6/154 4%
1/577 0%
Non-Small Cell Lung Carcinoma
4/304 1%
12/1390 1%
Other Solid Cancers
2/94 2%
13/1515 1%
Squamous Cell Lung Carcinoma
0/57 0%
7/810 1%
Other Sarcomas
1/69 1%
5/699 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Ewings Sarcoma
1/63 2%
1/262 0%
Esophageal Carcinoma
0/23 0%
4/769 1%
Thyroid Gland Carcinoma
2/45 4%
6/1592 0%
Cervical Carcinoma
1/35 3%
1/422 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Medulloblastoma
0/0 0%
2/450 0%
Head and Neck Carcinoma
0/85 0%
7/1574 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
7/2550 0%
B-Lymphoblastic Leukemia
7/55 13%
2/2640 0%
Prostate Carcinoma
2/13 15%
5/2105 0%
Non-Cancerous
1/104 1%
2/830 0%
Bladder Carcinoma
0/58 0%
3/956 0%
Pancreatic Carcinoma
0/89 0%
4/1611 0%
Glioma
0/52 0%
5/2127 0%

Mutation Distribution

Where HAPLN4 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in HAPLN4 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 302 mutations in HAPLN4

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