ASF1A

Anti-silencing function 1A histone chaperone Q9Y294 ASF1A_HUMAN
Protein Coding Chr 6 6q22.31 Swiss-Prot reviewed Entrez 25842
Mutations
54
CL 10 · Tissue 44
Samples
54
CL 10 · Tissue 44
Peptides
42
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
Mutations541044
Samples541044
Peptides42637

Function

ASF1A · Anti-silencing function 1A histone chaperone

This gene encodes a member of the H3/H4 family of histone chaperone proteins and is similar to the anti-silencing function-1 gene in yeast. The protein is a key component of a histone donor complex that functions in nucleosome assembly. It interacts with histones H3 and H4, and functions together with a chromatin assembly factor during DNA replication and repair. [provided by RefSeq, Jul 2008].

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
ENST00000229595 Q9Y294 54 42

Gene Properties

Type
Protein Coding
Chromosome
6
Cytoband
6q22.31
Entrez ID
Aliases
CGI-98CIAHSPC146

Recurrent Mutations

All 42 amino-acid changes on canonical ENST00000229595 · 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 ASF1A · 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 ASF1A – 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
Endometrial Carcinoma
2/42 5%
5/612 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Other Sarcomas
2/69 3%
1/699 0%
Colorectal Carcinoma
0/143 0%
12/3239 0%
Squamous Cell Lung Carcinoma
2/57 4%
1/810 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Gastric Carcinoma
0/74 0%
3/1809 0%
Melanoma
0/210 0%
3/1899 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Ovarian Carcinoma
1/109 1%
0/998 0%
Breast Carcinoma
0/144 0%
3/3264 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
0/2550 0%
Other Solid Cancers
0/94 0%
1/1515 0%
Head and Neck Carcinoma
1/85 1%
0/1574 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%

Mutation Distribution

Where ASF1A is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ASF1A 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 54 mutations in ASF1A

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