SUPT3H

SPT3 homolog, SAGA and STAGA complex component O75486 SUPT3_HUMAN
Protein Coding Chr 6 6p21.1 Swiss-Prot reviewed Entrez 8464
Mutations
418
CL 80 · Tissue 328
Samples
197
CL 45 · Tissue 150
Peptides
171
unique mutant peptides
Transcripts
4
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
Mutations41880328
Samples19745150
Peptides17134137

Function

SUPT3H · SPT3 homolog, SAGA and STAGA complex component

Enables transcription coactivator activity. Involved in histone H3 acetylation and histone deubiquitination. Located in nucleoplasm. Part of SAGA complex and transcription factor TFTC complex. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

4 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
ENST00000371459 O75486 184 130
ENST00000371460 O75486-4 169 128
ENST00000371458 Q5VWT9* 59 50
ENST00000637763 A0A1B0GVT7* 6 5

Gene Properties

Type
Protein Coding
Chromosome
6
Cytoband
6p21.1
Entrez ID
Aliases
SPT3SPT3L

Recurrent Mutations

All 130 amino-acid changes on canonical ENST00000371459 · 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 SUPT3H · 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 SUPT3H – 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
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Unknown
1/10 10%
0/29 0%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Glioblastoma
2/98 2%
0/0 0%
Burkitts Lymphoma
4/32 12%
0/196 0%
Endometrial Carcinoma
1/42 2%
9/612 1%
Melanoma
4/210 2%
17/1899 1%
Other Solid Cancers
3/94 3%
10/1515 1%
Esophageal Squamous Cell Carcinoma
4/51 8%
16/2550 1%
Squamous Cell Lung Carcinoma
0/57 0%
6/810 1%
Neuroendocrine Tumour
4/154 3%
1/577 0%
Colorectal Carcinoma
9/143 6%
14/3239 0%
Bladder Carcinoma
1/58 2%
5/956 1%
Non-Small Cell Lung Carcinoma
3/304 1%
7/1390 0%
Gastric Carcinoma
0/74 0%
10/1809 1%
Osteosarcoma
0/45 0%
1/166 1%
Head and Neck Carcinoma
0/85 0%
7/1574 0%
Glioma
0/52 0%
9/2127 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Thyroid Gland Carcinoma
0/45 0%
6/1592 0%
Non-Cancerous
0/104 0%
3/830 0%
Prostate Carcinoma
0/13 0%
6/2105 0%
Breast Carcinoma
0/144 0%
9/3264 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Ovarian Carcinoma
0/109 0%
2/998 0%
Neuroblastoma
2/87 2%
0/1331 0%
Other Sarcomas
1/69 1%
0/699 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%

Mutation Distribution

Where SUPT3H is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SUPT3H 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 418 mutations in SUPT3H

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