TKT

Transketolase P29401 TKT_HUMAN
Protein Coding Chr 3 3p21.1 Swiss-Prot reviewed Entrez 7086
Mutations
675
CL 106 · Tissue 543
Samples
228
CL 48 · Tissue 172
Peptides
192
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
Mutations675106543
Samples22848172
Peptides19232157

Function

TKT · Transketolase

This gene encodes a thiamine-dependent enzyme which plays a role in the channeling of excess sugar phosphates to glycolysis in the pentose phosphate pathway. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Apr 2012].

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
ENST00000462138 P29401 238 179
ENST00000423516 P29401-2 214 169
ENST00000423525 P29401 213 168
ENST00000367921 Q16832 10 6

Gene Properties

Type
Protein Coding
Chromosome
3
Cytoband
3p21.1
Entrez ID
Aliases
HEL-S-48HEL107SDDHDTKTKT1

Recurrent Mutations

All 179 amino-acid changes on canonical ENST00000462138 · 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 TKT · 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 TKT – 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
2/25 8%
0/0 0%
Endometrial Carcinoma
3/42 7%
14/612 2%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Melanoma
2/210 1%
34/1899 2%
Cervical Carcinoma
0/35 0%
6/422 1%
Glioblastoma
1/98 1%
0/0 0%
Gastric Carcinoma
1/74 1%
15/1809 1%
Colorectal Carcinoma
5/143 4%
22/3239 1%
Other Sarcomas
3/69 4%
3/699 0%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Other Solid Cancers
3/94 3%
8/1515 1%
Ewings Sarcoma
0/63 0%
2/262 1%
Head and Neck Carcinoma
1/85 1%
9/1574 1%
Ovarian Carcinoma
1/109 1%
5/998 0%
Bladder Carcinoma
0/58 0%
5/956 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Thyroid Gland Carcinoma
1/45 2%
7/1592 0%
Non-Small Cell Lung Carcinoma
4/304 1%
4/1390 0%
Mesothelioma
1/62 2%
0/165 0%
Neuroendocrine Tumour
2/154 1%
1/577 0%
Hepatocellular Carcinoma
1/46 2%
8/2210 0%
Prostate Carcinoma
3/13 23%
5/2105 0%
Non-Cancerous
1/104 1%
2/830 0%
Breast Carcinoma
4/144 3%
6/3264 0%
Pancreatic Carcinoma
1/89 1%
3/1611 0%
Glioma
0/52 0%
5/2127 0%
Medulloblastoma
0/0 0%
1/450 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
3/2534 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in TKT 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 675 mutations in TKT

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