KRTAP4-2

Keratin associated protein 4-2 Q9BYR5 KRA42_HUMAN
Protein Coding Chr 17 17q21.2 Swiss-Prot reviewed Entrez 85291
Mutations
163
CL 31 · Tissue 130
Samples
159
CL 31 · Tissue 126
Peptides
62
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
Mutations16331130
Samples15931126
Peptides62856

Function

KRTAP4-2 · Keratin associated protein 4-2

This protein is a member of the keratin-associated protein (KAP) family. The KAP proteins form a matrix of keratin intermediate filaments which contribute to the structure of hair fibers. KAP family members appear to have unique, family-specific amino- and carboxyl-terminal regions and are subdivided into three multi-gene families according to amino acid composition: the high sulfur, the ultrahigh sulfur, and the high tyrosine/glycine KAPs. This protein is a member of the ultrahigh sulfur KAP family and the gene is localized to a cluster of KAPs at 17q12-q21. [provided by RefSeq, Jul 2008].

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
ENST00000377726 Q9BYR5 162 61
ENST00000709608 A0AAG2UW37* 1 1

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q21.2
Entrez ID
Aliases
KAP4.2KRTAP4.2

Recurrent Mutations

All 61 amino-acid changes on canonical ENST00000377726 · 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 KRTAP4-2 · 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 KRTAP4-2 – 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
Gastrointestinal Stromal Tumour
0/0 0%
5/133 4%
Esophageal Carcinoma
0/23 0%
18/769 2%
Glioblastoma
1/98 1%
0/0 0%
Hepatocellular Carcinoma
0/46 0%
22/2210 1%
Burkitts Lymphoma
2/32 6%
0/196 0%
Melanoma
7/210 3%
10/1899 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Non-Small Cell Lung Carcinoma
7/304 2%
5/1390 0%
Neuroendocrine Tumour
5/154 3%
0/577 0%
Squamous Cell Lung Carcinoma
1/57 2%
4/810 0%
Rhabdomyosarcoma
1/33 3%
0/171 0%
Osteosarcoma
1/45 2%
0/166 0%
Endometrial Carcinoma
1/42 2%
2/612 0%
Pancreatic Carcinoma
0/89 0%
7/1611 0%
Bladder Carcinoma
1/58 2%
3/956 0%
Other Solid Cancers
1/94 1%
5/1515 0%
Ovarian Carcinoma
1/109 1%
3/998 0%
Colorectal Carcinoma
0/143 0%
12/3239 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Head and Neck Carcinoma
1/85 1%
4/1574 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Other Blood Cancers
0/61 0%
6/2725 0%
Gastric Carcinoma
0/74 0%
4/1809 0%
Glioma
0/52 0%
4/2127 0%
Neuroblastoma
1/87 1%
1/1331 0%
Other Sarcomas
0/69 0%
1/699 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Non-Cancerous
0/104 0%
1/830 0%
Breast Carcinoma
0/144 0%
3/3264 0%
Prostate Carcinoma
0/13 0%
1/2105 0%

Mutation Distribution

Where KRTAP4-2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in KRTAP4-2 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 1 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 163 mutations in KRTAP4-2

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