KCNK1

Potassium two pore domain channel subfamily K member 1 O00180 KCNK1_HUMAN
Protein Coding Chr 1 1q42.2 Swiss-Prot reviewed Entrez 3775
Mutations
218
CL 47 · Tissue 166
Samples
210
CL 45 · Tissue 160
Peptides
150
unique mutant peptides
Transcripts
1
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
Mutations21847166
Samples21045160
Peptides15031128

Function

KCNK1 · Potassium two pore domain channel subfamily K member 1

This gene encodes one of the members of the superfamily of potassium channel proteins containing two pore-forming P domains. The product of this gene has not been shown to be a functional channel, however, it may require other non-pore-forming proteins for activity. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

1 transcript · 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
ENST00000366621 O00180 218 150

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1q42.2
Entrez ID
Aliases
DPKHOHOK2P1K2p1.1KCNO1TWIK-1

Recurrent Mutations

All 150 amino-acid changes on canonical ENST00000366621 · 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 KCNK1 · 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 KCNK1 – 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%
Melanoma
3/210 1%
45/1899 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Glioblastoma
1/98 1%
0/0 0%
Endometrial Carcinoma
0/42 0%
6/612 1%
Gastric Carcinoma
0/74 0%
16/1809 1%
Non-Small Cell Lung Carcinoma
6/304 2%
7/1390 0%
Hodgkins Lymphoma
1/16 6%
0/122 0%
Squamous Cell Lung Carcinoma
1/57 2%
5/810 1%
Bladder Carcinoma
1/58 2%
6/956 1%
Other Sarcomas
4/69 6%
1/699 0%
Colorectal Carcinoma
3/143 2%
17/3239 1%
Other Solid Cancers
0/94 0%
8/1515 1%
Burkitts Lymphoma
1/32 3%
0/196 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Thyroid Gland Carcinoma
0/45 0%
7/1592 0%
B-Cell Non-Hodgkins Lymphoma
4/88 5%
7/2534 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
7/2550 0%
Head and Neck Carcinoma
2/85 2%
3/1574 0%
Neuroendocrine Tumour
1/154 1%
1/577 0%
B-Lymphoblastic Leukemia
4/55 7%
2/2640 0%
Non-Cancerous
0/104 0%
2/830 0%
Kidney Carcinoma
2/85 2%
2/1862 0%
Prostate Carcinoma
1/13 8%
3/2105 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
Glioma
0/52 0%
4/2127 0%
Breast Carcinoma
0/144 0%
6/3264 0%
Esophageal Carcinoma
0/23 0%
1/769 0%

Mutation Distribution

Where KCNK1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in KCNK1 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 218 mutations in KCNK1

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