HPF1

Histone PARylation factor 1 Q9NWY4 HPF1_HUMAN
Protein Coding Chr 4 4q33 Swiss-Prot reviewed Entrez 54969
Mutations
115
CL 21 · Tissue 93
Samples
114
CL 21 · Tissue 92
Peptides
87
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
Mutations1152193
Samples1142192
Peptides871376

Function

HPF1 · Histone PARylation factor 1

Enables chromatin binding activity and histone binding activity. Involved in double-strand break repair; peptidyl-serine ADP-ribosylation; and regulation of protein modification process. Located in chromatin; nucleus; and site of DNA damage. [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
ENST00000393381 Q9NWY4 115 87

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q33
Entrez ID
Aliases
C4orf27

Recurrent Mutations

All 87 amino-acid changes on canonical ENST00000393381 · 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 HPF1 · 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 HPF1 – 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
1/42 2%
9/612 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Non-Small Cell Lung Carcinoma
4/304 1%
8/1390 1%
Squamous Cell Lung Carcinoma
3/57 5%
3/810 0%
Bladder Carcinoma
1/58 2%
6/956 1%
Neuroendocrine Tumour
2/154 1%
1/577 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%
Colorectal Carcinoma
4/143 3%
7/3239 0%
Other Solid Cancers
1/94 1%
4/1515 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Melanoma
0/210 0%
6/1899 0%
Gastric Carcinoma
0/74 0%
5/1809 0%
Ovarian Carcinoma
0/109 0%
3/998 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Thyroid Gland Carcinoma
0/45 0%
4/1592 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
6/2550 0%
Medulloblastoma
0/0 0%
1/450 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Breast Carcinoma
2/144 1%
5/3264 0%
Non-Cancerous
1/104 1%
0/830 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
2/2534 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
Glioma
0/52 0%
1/2127 0%
Other Blood Cancers
1/61 2%
0/2725 0%

Mutation Distribution

Where HPF1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in HPF1 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 115 mutations in HPF1

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