MAGEA3

MAGE family member A3 P43357 MAGA3_HUMAN
Protein Coding Chr X Xq28 Swiss-Prot reviewed Entrez 4102
Mutations
455
CL 58 · Tissue 392
Samples
216
CL 29 · Tissue 184
Peptides
154
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
Mutations45558392
Samples21629184
Peptides15423135

Function

MAGEA3 · MAGE family member A3

This gene is a member of the MAGEA gene family. The members of this family encode proteins with 50 to 80% sequence identity to each other. The promoters and first exons of the MAGEA genes show considerable variability, suggesting that the existence of this gene family enables the same function to be expressed under different transcriptional controls. The MAGEA genes are clustered at chromosomal location Xq28. They have been implicated in some hereditary disorders, such as dyskeratosis congenita. [provided by RefSeq, Jul 2008].

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
ENST00000370278 P43357 227 153
ENST00000598245 P43357 227 153
ENST00000417212 E7EMU0* 1 1

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq28
Entrez ID
Aliases
CT1.3HIP8HYPDMAGE3

Recurrent Mutations

All 153 amino-acid changes on canonical ENST00000370278 · 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 MAGEA3 · 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 MAGEA3 – 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
Melanoma
1/210 0%
53/1899 3%
Thymic Epithelial Tumor
0/0 0%
1/39 3%
Endometrial Carcinoma
0/42 0%
13/612 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Chondrosarcoma
1/14 7%
0/75 0%
Cervical Carcinoma
0/35 0%
5/422 1%
Squamous Cell Lung Carcinoma
2/57 4%
7/810 1%
Gastric Carcinoma
3/74 4%
16/1809 1%
Ewings Sarcoma
2/63 3%
1/262 0%
Non-Small Cell Lung Carcinoma
6/304 2%
7/1390 0%
Other Solid Cancers
0/94 0%
12/1515 1%
Colorectal Carcinoma
3/143 2%
18/3239 1%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Germ Cell Tumour
1/25 4%
0/169 0%
Bladder Carcinoma
0/58 0%
5/956 1%
Hepatocellular Carcinoma
0/46 0%
10/2210 0%
Head and Neck Carcinoma
0/85 0%
6/1574 0%
Ovarian Carcinoma
2/109 2%
2/998 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Pancreatic Carcinoma
1/89 1%
3/1611 0%
Glioma
0/52 0%
5/2127 0%
Breast Carcinoma
1/144 1%
6/3264 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Neuroblastoma
0/87 0%
2/1331 0%
Other Sarcomas
1/69 1%
0/699 0%
Non-Cancerous
1/104 1%
0/830 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
1/2534 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
Kidney Carcinoma
0/85 0%
1/1862 0%

Mutation Distribution

Where MAGEA3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in MAGEA3 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 1 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 455 mutations in MAGEA3

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