MEX3B

Mex-3 RNA binding family member B Q6ZN04 MEX3B_HUMAN
Protein Coding Chr 15 15q25.2 Swiss-Prot reviewed Entrez 84206
Mutations
420
CL 71 · Tissue 329
Samples
357
CL 66 · Tissue 276
Peptides
270
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
Mutations42071329
Samples35766276
Peptides27050220

Function

MEX3B · Mex-3 RNA binding family member B

This gene encodes an RNA-binding phosphoprotein that is part of the MEX3 (muscle excess 3) family of translational regulators. The encoded protein contains N-terminal nuclear export and nuclear localization signals and is exported from the cytoplasm to the nucleus. The protein binds to RNA via two KH domains and also colocalizes with MEX3A, Dcp1A decapping factor and Argonaute proteins within P (processing) bodies. [provided by RefSeq, Oct 2012].

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
ENST00000329713 Q6ZN04 376 253
ENST00000558133 Q6ZN04-3 44 33

Gene Properties

Type
Protein Coding
Chromosome
15
Cytoband
15q25.2
Entrez ID
Aliases
MEX-3BRKHD3RNF195

Recurrent Mutations

All 253 amino-acid changes on canonical ENST00000329713 · 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 MEX3B · 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 MEX3B – 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
Glioblastoma
4/98 4%
0/0 0%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Endometrial Carcinoma
3/42 7%
19/612 3%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Colorectal Carcinoma
16/143 11%
64/3239 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Gastric Carcinoma
2/74 3%
26/1809 1%
Non-Small Cell Lung Carcinoma
5/304 2%
18/1390 1%
Plasma Cell Myeloma
2/44 5%
2/305 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Cervical Carcinoma
1/35 3%
4/422 1%
Thyroid Gland Carcinoma
0/45 0%
16/1592 1%
Neuroendocrine Tumour
5/154 3%
2/577 0%
Melanoma
3/210 1%
17/1899 1%
Other Solid Cancers
0/94 0%
14/1515 1%
Non-Cancerous
1/104 1%
7/830 1%
Ovarian Carcinoma
3/109 3%
5/998 0%
Hepatocellular Carcinoma
0/46 0%
16/2210 1%
Bladder Carcinoma
3/58 5%
4/956 0%
Squamous Cell Lung Carcinoma
1/57 2%
5/810 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Other Sarcomas
2/69 3%
2/699 0%
Glioma
0/52 0%
11/2127 1%
Esophageal Squamous Cell Carcinoma
0/51 0%
12/2550 0%
Prostate Carcinoma
1/13 8%
8/2105 0%
Head and Neck Carcinoma
1/85 1%
6/1574 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
10/2534 0%
Biliary Tract Carcinoma
1/54 2%
3/950 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Pancreatic Carcinoma
2/89 2%
4/1611 0%

Mutation Distribution

Where MEX3B is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in MEX3B 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 420 mutations in MEX3B

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