EIF2B3

Eukaryotic translation initiation factor 2B subunit gamma Q9NR50 EI2BG_HUMAN
Protein Coding Chr 1 1p34.1 Swiss-Prot reviewed Entrez 8891
Mutations
541
CL 90 · Tissue 447
Samples
196
CL 41 · Tissue 151
Peptides
149
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
Mutations54190447
Samples19641151
Peptides14928122

Function

EIF2B3 · Eukaryotic translation initiation factor 2B subunit gamma

The protein encoded by this gene is one of the subunits of initiation factor eIF2B, which catalyzes the exchange of eukaryotic initiation factor 2-bound GDP for GTP. It has also been found to function as a cofactor of hepatitis C virus internal ribosome entry site-mediated translation. Mutations in this gene have been associated with leukodystrophy with vanishing white matter. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009].

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
ENST00000360403 Q9NR50 201 139
ENST00000372183 Q9NR50-2 171 123
ENST00000620860 Q9NR50-3 169 121

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p34.1
Entrez ID
Aliases
EIF-2BEIF2BgammaVWM3

Recurrent Mutations

All 139 amino-acid changes on canonical ENST00000360403 · 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 EIF2B3 · 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 EIF2B3 – 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
3/40 8%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Endometrial Carcinoma
4/42 10%
13/612 2%
Unknown
1/10 10%
0/29 0%
Burkitts Lymphoma
1/32 3%
4/196 2%
Melanoma
5/210 2%
17/1899 1%
Gastric Carcinoma
3/74 4%
16/1809 1%
Colorectal Carcinoma
3/143 2%
25/3239 1%
Non-Small Cell Lung Carcinoma
1/304 0%
10/1390 1%
Squamous Cell Lung Carcinoma
0/57 0%
5/810 1%
Other Solid Cancers
1/94 1%
8/1515 1%
Non-Cancerous
1/104 1%
4/830 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Head and Neck Carcinoma
0/85 0%
8/1574 1%
Ovarian Carcinoma
3/109 3%
2/998 0%
Neuroendocrine Tumour
3/154 2%
0/577 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Other Sarcomas
0/69 0%
3/699 0%
Meningioma
0/3 0%
1/252 0%
Prostate Carcinoma
0/13 0%
7/2105 0%
Biliary Tract Carcinoma
1/54 2%
2/950 0%
Pancreatic Carcinoma
2/89 2%
2/1611 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
5/2550 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Breast Carcinoma
2/144 1%
5/3264 0%
Glioma
0/52 0%
3/2127 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
B-Lymphoblastic Leukemia
2/55 4%
1/2640 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
0/2534 0%
Other Blood Cancers
1/61 2%
1/2725 0%

Mutation Distribution

Where EIF2B3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in EIF2B3 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 541 mutations in EIF2B3

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