KCTD18

Potassium channel tetramerization domain containing 18 Q6PI47 KCD18_HUMAN
Protein Coding Chr 2 2q33.1 Swiss-Prot reviewed Entrez 130535
Mutations
445
CL 75 · Tissue 364
Samples
227
CL 48 · Tissue 175
Peptides
151
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
Mutations44575364
Samples22748175
Peptides15133123

Function

KCTD18 · Potassium channel tetramerization domain containing 18

Predicted to be involved in protein homooligomerization. [provided by Alliance of Genome Resources, Apr 2022]

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
ENST00000359878 Q6PI47 239 151
ENST00000409157 Q6PI47 206 139

Gene Properties

Type
Protein Coding
Chromosome
2
Cytoband
2q33.1
Entrez ID
Aliases
6530404F10Rik

Recurrent Mutations

All 151 amino-acid changes on canonical ENST00000359878 · 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 KCTD18 · 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 KCTD18 – 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-Lymphoblastic Leukemia
3/40 8%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
5/133 4%
Endometrial Carcinoma
2/42 5%
11/612 2%
Cervical Carcinoma
0/35 0%
6/422 1%
Colorectal Carcinoma
8/143 6%
31/3239 1%
Chondrosarcoma
1/14 7%
0/75 0%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Melanoma
6/210 3%
15/1899 1%
Bladder Carcinoma
0/58 0%
9/956 1%
Gastric Carcinoma
2/74 3%
12/1809 1%
Non-Small Cell Lung Carcinoma
0/304 0%
12/1390 1%
Neuroendocrine Tumour
5/154 3%
0/577 0%
Non-Cancerous
1/104 1%
5/830 1%
Other Solid Cancers
1/94 1%
8/1515 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Esophageal Squamous Cell Carcinoma
3/51 6%
10/2550 0%
Ovarian Carcinoma
3/109 3%
2/998 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Thyroid Gland Carcinoma
0/45 0%
5/1592 0%
Pancreatic Carcinoma
2/89 2%
3/1611 0%
Other Sarcomas
1/69 1%
1/699 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Prostate Carcinoma
2/13 15%
3/2105 0%
Squamous Cell Lung Carcinoma
1/57 2%
1/810 0%
Neuroblastoma
0/87 0%
3/1331 0%
Kidney Carcinoma
0/85 0%
4/1862 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%

Mutation Distribution

Where KCTD18 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in KCTD18 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 445 mutations in KCTD18

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