MED18

Mediator complex subunit 18 Q9BUE0 MED18_HUMAN
Protein Coding Chr 1 1p35.3 Swiss-Prot reviewed Entrez 54797
Mutations
207
CL 26 · Tissue 172
Samples
107
CL 17 · Tissue 85
Peptides
74
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
Mutations20726172
Samples1071785
Peptides741065

Function

MED18 · Mediator complex subunit 18

MED18 is a component of the Mediator complex, which is a coactivator for DNA-binding factors that activate transcription via RNA polymerase II (Sato et al., 2003 [PubMed 12584197]).[supplied by OMIM, Oct 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
ENST00000373842 Q9BUE0 108 74
ENST00000398997 Q9BUE0 99 73

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p35.3
Entrez ID
Aliases
SRB5p28b

Recurrent Mutations

All 74 amino-acid changes on canonical ENST00000373842 · 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 MED18 · 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 MED18 – 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
Endometrial Carcinoma
3/42 7%
6/612 1%
Glioblastoma
1/98 1%
0/0 0%
Cervical Carcinoma
2/35 6%
2/422 0%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Melanoma
0/210 0%
14/1899 1%
Colorectal Carcinoma
3/143 2%
15/3239 0%
Osteosarcoma
0/45 0%
1/166 1%
Burkitts Lymphoma
0/32 0%
1/196 1%
Other Solid Cancers
0/94 0%
7/1515 0%
Non-Small Cell Lung Carcinoma
5/304 2%
2/1390 0%
Gastric Carcinoma
0/74 0%
7/1809 0%
Glioma
0/52 0%
6/2127 0%
Other Sarcomas
0/69 0%
2/699 0%
Kidney Carcinoma
0/85 0%
5/1862 0%
Squamous Cell Lung Carcinoma
0/57 0%
2/810 0%
Head and Neck Carcinoma
0/85 0%
3/1574 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Breast Carcinoma
0/144 0%
4/3264 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
3/2550 0%
Non-Cancerous
0/104 0%
1/830 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
1/2534 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Hepatocellular Carcinoma
1/46 2%
1/2210 0%
Ovarian Carcinoma
0/109 0%
1/998 0%
Pancreatic Carcinoma
0/89 0%
1/1611 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
B-Lymphoblastic Leukemia
0/55 0%
1/2640 0%

Mutation Distribution

Where MED18 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in MED18 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 207 mutations in MED18

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