HTATSF1

HIV-1 Tat specific factor 1 O43719 HTSF1_HUMAN
Protein Coding Chr X Xq26.3 Swiss-Prot reviewed Entrez 27336
Mutations
777
CL 113 · Tissue 650
Samples
370
CL 67 · Tissue 297
Peptides
298
unique mutant peptides
Transcripts
2
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
Mutations777113650
Samples37067297
Peptides29838257

Function

HTATSF1 · HIV-1 Tat specific factor 1

The protein encoded by this gene functions as a cofactor for the stimulation of transcriptional elongation by HIV-1 Tat, which binds to the HIV-1 promoter through Tat-TAR interaction. This protein may also serve as a dual-function factor to couple transcription and splicing and to facilitate their reciprocal activation. Alternatively spliced transcript variants have been found for this gene.[provided by RefSeq, Sep 2009].

Isoforms & Proteins

2 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
ENST00000218364 O43719 413 298
ENST00000535601 O43719 364 284

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq26.3
Entrez ID
Aliases
TAT-SF1TATSF1dJ196E23.2

Recurrent Mutations

All 298 amino-acid changes on canonical ENST00000218364 · 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 HTATSF1 · 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 HTATSF1 – 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-Cell Non-Hodgkins Lymphoma
3/26 12%
0/0 0%
Endometrial Carcinoma
8/42 19%
23/612 4%
Unknown
0/10 0%
1/29 3%
Melanoma
2/210 1%
43/1899 2%
Squamous Cell Lung Carcinoma
3/57 5%
13/810 2%
Cervical Carcinoma
0/35 0%
8/422 2%
Colorectal Carcinoma
17/143 12%
40/3239 1%
Gastrointestinal Stromal Tumour
0/0 0%
2/133 2%
Hodgkins Lymphoma
0/16 0%
2/122 2%
Non-Small Cell Lung Carcinoma
5/304 2%
19/1390 1%
Chondrosarcoma
0/14 0%
1/75 1%
Bladder Carcinoma
0/58 0%
11/956 1%
Glioblastoma
1/98 1%
0/0 0%
Osteosarcoma
1/45 2%
1/166 1%
Breast Carcinoma
2/144 1%
30/3264 1%
Other Solid Cancers
5/94 5%
9/1515 1%
Neuroendocrine Tumour
5/154 3%
1/577 0%
Ovarian Carcinoma
5/109 5%
4/998 0%
Gastric Carcinoma
0/74 0%
14/1809 1%
Small Cell Lung Carcinoma
0/9 0%
5/752 1%
Non-Cancerous
1/104 1%
5/830 1%
Head and Neck Carcinoma
0/85 0%
9/1574 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Mesothelioma
0/62 0%
1/165 1%
Hepatocellular Carcinoma
0/46 0%
10/2210 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
8/2550 0%
Kidney Carcinoma
0/85 0%
7/1862 0%
Glioma
0/52 0%
7/2127 0%

Mutation Distribution

Where HTATSF1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in HTATSF1 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 777 mutations in HTATSF1

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