KCNC3

Potassium voltage-gated channel subfamily C member 3 Q14003 KCNC3_HUMAN
Protein Coding Chr 19 19q13.33 Swiss-Prot reviewed Entrez 3748
Mutations
707
CL 113 · Tissue 580
Samples
350
CL 78 · Tissue 263
Peptides
277
unique mutant peptides
Transcripts
3
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
Mutations707113580
Samples35078263
Peptides27763212

Function

KCNC3 · Potassium voltage-gated channel subfamily C member 3

The Shaker gene family of Drosophila encodes components of voltage-gated potassium channels and is comprised of four subfamilies. Based on sequence similarity, this gene is similar to one of these subfamilies, namely the Shaw subfamily. The protein encoded by this gene belongs to the delayed rectifier class of channel proteins and is an integral membrane protein that mediates the voltage-dependent potassium ion permeability of excitable membranes. Alternate splicing results in several transcript variants. [provided by RefSeq, Mar 2014].

Isoforms & Proteins

3 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
ENST00000477616 Q14003 381 269
ENST00000376959 E7ETH1* 303 217
ENST00000474951 E9PQY4* 23 18

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19q13.33
Entrez ID
Aliases
KSHIIIDKV3.3SCA13

Recurrent Mutations

All 268 amino-acid changes on canonical ENST00000477616 · 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 KCNC3 · 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 KCNC3 – 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
7/40 18%
0/0 0%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Endometrial Carcinoma
4/42 10%
12/612 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Melanoma
7/210 3%
37/1899 2%
Colorectal Carcinoma
12/143 8%
44/3239 1%
Other Solid Cancers
3/94 3%
22/1515 1%
Mesothelioma
1/62 2%
2/165 1%
Plasma Cell Myeloma
1/44 2%
3/305 1%
Esophageal Squamous Cell Carcinoma
3/51 6%
25/2550 1%
Gastric Carcinoma
4/74 5%
16/1809 1%
Glioblastoma
1/98 1%
0/0 0%
Ewings Sarcoma
3/63 5%
0/262 0%
Bladder Carcinoma
1/58 2%
8/956 1%
Cervical Carcinoma
0/35 0%
4/422 1%
Squamous Cell Lung Carcinoma
0/57 0%
7/810 1%
Head and Neck Carcinoma
1/85 1%
12/1574 1%
Meningioma
0/3 0%
2/252 1%
Thyroid Gland Carcinoma
0/45 0%
12/1592 1%
Hodgkins Lymphoma
1/16 6%
0/122 0%
Esophageal Carcinoma
0/23 0%
5/769 1%
Neuroendocrine Tumour
3/154 2%
1/577 0%
Small Cell Lung Carcinoma
0/9 0%
4/752 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Osteosarcoma
1/45 2%
0/166 0%
Non-Small Cell Lung Carcinoma
4/304 1%
4/1390 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Other Sarcomas
0/69 0%
3/699 0%

Mutation Distribution

Where KCNC3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in KCNC3 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 707 mutations in KCNC3

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