KRT23

Keratin 23 Q9C075 K1C23_HUMAN
Protein Coding Chr 17 17q21.2 Swiss-Prot reviewed Entrez 25984
Mutations
433
CL 70 · Tissue 363
Samples
277
CL 54 · Tissue 223
Peptides
203
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
Mutations43370363
Samples27754223
Peptides20339170

Function

KRT23 · Keratin 23

The protein encoded by this gene is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. The type I cytokeratin genes are clustered in a region of chromosome 17q12-q21. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013].

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
ENST00000209718 Q9C075 288 200
ENST00000436344 Q9C075-2 145 107

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q21.2
Entrez ID
Aliases
CK23HAIK1K23

Recurrent Mutations

All 200 amino-acid changes on canonical ENST00000209718 · 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 KRT23 · 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 KRT23 – 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%
T-Lymphoblastic Leukemia
3/40 8%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
4/133 3%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Melanoma
5/210 2%
41/1899 2%
Glioblastoma
2/98 2%
0/0 0%
Endometrial Carcinoma
4/42 10%
8/612 1%
Gastric Carcinoma
1/74 1%
19/1809 1%
Squamous Cell Lung Carcinoma
0/57 0%
9/810 1%
Bladder Carcinoma
3/58 5%
7/956 1%
Colorectal Carcinoma
8/143 6%
25/3239 1%
Plasma Cell Myeloma
1/44 2%
2/305 1%
Other Solid Cancers
1/94 1%
12/1515 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Medulloblastoma
0/0 0%
3/450 1%
Non-Small Cell Lung Carcinoma
0/304 0%
11/1390 1%
Neuroendocrine Tumour
3/154 2%
1/577 0%
Glioma
0/52 0%
11/2127 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Head and Neck Carcinoma
1/85 1%
7/1574 0%
Osteosarcoma
1/45 2%
0/166 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
10/2550 0%
Mesothelioma
1/62 2%
0/165 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Cervical Carcinoma
1/35 3%
1/422 0%
Thyroid Gland Carcinoma
0/45 0%
7/1592 0%
Biliary Tract Carcinoma
1/54 2%
3/950 0%
Non-Cancerous
1/104 1%
2/830 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Prostate Carcinoma
0/13 0%
6/2105 0%

Mutation Distribution

Where KRT23 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in KRT23 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 433 mutations in KRT23

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