SIRT3

Sirtuin 3 Q9NTG7 SIR3_HUMAN
Protein Coding Chr 11 11p15.5 Swiss-Prot reviewed Entrez 23410
Mutations
669
CL 117 · Tissue 535
Samples
164
CL 42 · Tissue 116
Peptides
153
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
Mutations669117535
Samples16442116
Peptides15328125

Function

SIRT3 · Sirtuin 3

SIRT3 encodes a member of the sirtuin family of class III histone deacetylases, homologs to the yeast Sir2 protein. The encoded protein is found exclusively in mitochondria, where it can eliminate reactive oxygen species, inhibit apoptosis, and prevent the formation of cancer cells. SIRT3 has far-reaching effects on nuclear gene expression, cancer, cardiovascular disease, neuroprotection, aging, and metabolic control. [provided by RefSeq, May 2019].

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
ENST00000382743 Q9NTG7 169 121
ENST00000524564 E9PN58* 132 100
ENST00000525319 E9PK80* 127 94
ENST00000532956 E9PM75* 125 91
ENST00000529382 Q9NTG7-2 116 86

Gene Properties

Type
Protein Coding
Chromosome
11
Cytoband
11p15.5
Entrez ID
Aliases
SIR2L3

Recurrent Mutations

All 121 amino-acid changes on canonical ENST00000382743 · 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 SIRT3 · 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 SIRT3 – 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 Myeloid Leukemia
4/90 4%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
2/133 2%
Endometrial Carcinoma
2/42 5%
7/612 1%
Glioblastoma
1/98 1%
0/0 0%
Other Solid Cancers
1/94 1%
14/1515 1%
Burkitts Lymphoma
2/32 6%
0/196 0%
Bladder Carcinoma
1/58 2%
7/956 1%
Colorectal Carcinoma
4/143 3%
18/3239 1%
Melanoma
4/210 2%
9/1899 0%
Ewings Sarcoma
2/63 3%
0/262 0%
Non-Small Cell Lung Carcinoma
5/304 2%
5/1390 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Rhabdomyosarcoma
1/33 3%
0/171 0%
Hepatocellular Carcinoma
2/46 4%
8/2210 0%
Mesothelioma
1/62 2%
0/165 0%
Medulloblastoma
0/0 0%
2/450 0%
Neuroendocrine Tumour
3/154 2%
0/577 0%
Meningioma
0/3 0%
1/252 0%
Squamous Cell Lung Carcinoma
1/57 2%
2/810 0%
Gastric Carcinoma
1/74 1%
5/1809 0%
Glioma
0/52 0%
6/2127 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Prostate Carcinoma
1/13 8%
4/2105 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
B-Lymphoblastic Leukemia
2/55 4%
3/2640 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
Ovarian Carcinoma
1/109 1%
1/998 0%

Mutation Distribution

Where SIRT3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SIRT3 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 669 mutations in SIRT3

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