COL20A1

Collagen type XX alpha 1 chain Q9P218 COKA1_HUMAN
Protein Coding Chr 20 20q13.33 Swiss-Prot reviewed Entrez 57642
Mutations
1,663
CL 290 · Tissue 1,361
Samples
800
CL 176 · Tissue 618
Peptides
633
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
Mutations1,6632901,361
Samples800176618
Peptides633130529

Function

COL20A1 · Collagen type XX alpha 1 chain

Predicted to be located in endoplasmic reticulum lumen and extracellular region. Predicted to be part of collagen trimer. Predicted to be active in collagen-containing extracellular matrix and extracellular space. [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
ENST00000358894 Q9P218 873 604
ENST00000422202 Q9P218-2 790 576

Gene Properties

Type
Protein Coding
Chromosome
20
Cytoband
20q13.33
Entrez ID

Recurrent Mutations

All 604 amino-acid changes on canonical ENST00000358894 · 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 COL20A1 · 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 COL20A1 – 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
6/40 15%
0/0 0%
Endometrial Carcinoma
10/42 24%
26/612 4%
Melanoma
13/210 6%
103/1899 5%
Non-Small Cell Lung Carcinoma
31/304 10%
50/1390 4%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Squamous Cell Lung Carcinoma
5/57 9%
27/810 3%
Other Solid Cancers
7/94 7%
46/1515 3%
Glioblastoma
3/98 3%
0/0 0%
Colorectal Carcinoma
21/143 15%
74/3239 2%
Small Cell Lung Carcinoma
2/9 22%
16/752 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Neuroendocrine Tumour
13/154 8%
3/577 1%
Gastric Carcinoma
4/74 5%
37/1809 2%
Plasma Cell Myeloma
3/44 7%
3/305 1%
Thyroid Gland Carcinoma
1/45 2%
25/1592 2%
Germ Cell Tumour
0/25 0%
3/169 2%
Cervical Carcinoma
0/35 0%
7/422 2%
Hepatocellular Carcinoma
5/46 11%
27/2210 1%
Esophageal Carcinoma
1/23 4%
10/769 1%
Ovarian Carcinoma
8/109 7%
7/998 1%
Rhabdomyosarcoma
1/33 3%
1/171 1%
Osteosarcoma
1/45 2%
1/166 1%
Biliary Tract Carcinoma
1/54 2%
8/950 1%
Bladder Carcinoma
1/58 2%
8/956 1%
B-Cell Non-Hodgkins Lymphoma
4/88 5%
19/2534 1%
Burkitts Lymphoma
2/32 6%
0/196 0%
Mesothelioma
2/62 3%
0/165 0%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Non-Cancerous
0/104 0%
8/830 1%

Mutation Distribution

Where COL20A1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in COL20A1 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 1,663 mutations in COL20A1

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