HAP1

Huntingtin associated protein 1 P54257 HAP1_HUMAN
Protein Coding Chr 17 17q21.2 Swiss-Prot reviewed Entrez 9001
Mutations
1,383
CL 150 · Tissue 1,222
Samples
340
CL 62 · Tissue 273
Peptides
286
unique mutant peptides
Transcripts
5
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
Mutations1,3831501,222
Samples34062273
Peptides28647241

Function

HAP1 · Huntingtin associated protein 1

Huntington's disease (HD), a neurodegenerative disorder characterized by loss of striatal neurons, is caused by an expansion of a polyglutamine tract in the HD protein huntingtin. This gene encodes a protein that interacts with huntingtin, with two cytoskeletal proteins (dynactin and pericentriolar autoantigen protein 1), and with a hepatocyte growth factor-regulated tyrosine kinase substrate. The interactions with cytoskeletal proteins and a kinase substrate suggest a role for this protein in vesicular trafficking or organelle transport. Several alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

5 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
ENST00000347901 P54257-2 375 242
ENST00000310778 P54257 358 238
ENST00000341193 P54257-4 326 219
ENST00000393939 P54257-3 323 216
ENST00000458656 H7C295* 1 1

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q21.2
Entrez ID
Aliases
HAP2HIP5HLPhHLP1

Recurrent Mutations

All 242 amino-acid changes on canonical ENST00000347901 · 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 HAP1 · 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 HAP1 – 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
4/40 10%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
6/133 5%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Endometrial Carcinoma
5/42 12%
18/612 3%
Rhabdomyosarcoma
1/33 3%
4/171 2%
Colorectal Carcinoma
21/143 15%
50/3239 2%
Melanoma
2/210 1%
37/1899 2%
Hodgkins Lymphoma
2/16 12%
0/122 0%
Cervical Carcinoma
0/35 0%
6/422 1%
Neuroendocrine Tumour
7/154 5%
1/577 0%
Non-Small Cell Lung Carcinoma
5/304 2%
13/1390 1%
Germ Cell Tumour
0/25 0%
2/169 1%
Bladder Carcinoma
1/58 2%
8/956 1%
Other Solid Cancers
0/94 0%
14/1515 1%
Thyroid Gland Carcinoma
1/45 2%
11/1592 1%
Hepatocellular Carcinoma
0/46 0%
16/2210 1%
Gastric Carcinoma
0/74 0%
13/1809 1%
Squamous Cell Lung Carcinoma
0/57 0%
6/810 1%
Esophageal Carcinoma
0/23 0%
5/769 1%
Plasma Cell Myeloma
0/44 0%
2/305 1%
Ovarian Carcinoma
1/109 1%
5/998 0%
Head and Neck Carcinoma
1/85 1%
8/1574 1%
Small Cell Lung Carcinoma
0/9 0%
4/752 1%
Kidney Carcinoma
2/85 2%
7/1862 0%
Mesothelioma
1/62 2%
0/165 0%
Non-Cancerous
0/104 0%
4/830 0%
Pancreatic Carcinoma
1/89 1%
5/1611 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Breast Carcinoma
0/144 0%
10/3264 0%

Mutation Distribution

Where HAP1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in HAP1 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 1,383 mutations in HAP1

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