MAG

Myelin associated glycoprotein P20916 MAG_HUMAN
Protein Coding Chr 19 19q13.12 Swiss-Prot reviewed Entrez 4099
Mutations
1,373
CL 194 · Tissue 1,156
Samples
475
CL 90 · Tissue 379
Peptides
340
unique mutant peptides
Transcripts
5
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
Mutations1,3731941,156
Samples47590379
Peptides34064292

Function

MAG · Myelin associated glycoprotein

The protein encoded by this gene is a type I membrane protein and member of the immunoglobulin superfamily. It is thought to be involved in the process of myelination. It is a lectin that binds to sialylated glycoconjugates and mediates certain myelin-neuron cell-cell interactions. Three alternatively spliced transcripts encoding different isoforms have been described for this gene. [provided by RefSeq, Nov 2010].

Isoforms & Proteins

5 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
ENST00000392213 P20916 497 319
ENST00000537831 P20916-3 426 288
ENST00000361922 P20916-2 404 277
ENST00000597035 M0R3I4* 45 30
ENST00000600291 M0QZU4* 1 1

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19q13.12
Entrez ID
Aliases
GMAS-MAGSIGLEC-4ASIGLEC4SIGLEC4ASPG75

Recurrent Mutations

All 319 amino-acid changes on canonical ENST00000392213 · 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 MAG · 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 MAG – 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
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Endometrial Carcinoma
4/42 10%
17/612 3%
Glioblastoma
3/98 3%
0/0 0%
Colorectal Carcinoma
16/143 11%
86/3239 3%
Melanoma
6/210 3%
48/1899 3%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Non-Small Cell Lung Carcinoma
9/304 3%
30/1390 2%
Gastric Carcinoma
2/74 3%
34/1809 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Squamous Cell Lung Carcinoma
1/57 2%
15/810 2%
Neuroendocrine Tumour
12/154 8%
1/577 0%
Small Cell Lung Carcinoma
2/9 22%
10/752 1%
Cervical Carcinoma
3/35 9%
3/422 1%
Other Solid Cancers
2/94 2%
18/1515 1%
Ovarian Carcinoma
7/109 6%
6/998 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Glioma
0/52 0%
18/2127 1%
Esophageal Squamous Cell Carcinoma
0/51 0%
20/2550 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Biliary Tract Carcinoma
0/54 0%
7/950 1%
Bladder Carcinoma
0/58 0%
7/956 1%
Head and Neck Carcinoma
2/85 2%
9/1574 1%
Other Sarcomas
1/69 1%
4/699 1%
Thyroid Gland Carcinoma
4/45 9%
4/1592 0%
Osteosarcoma
1/45 2%
0/166 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Mesothelioma
0/62 0%
1/165 1%
Medulloblastoma
0/0 0%
2/450 0%
Non-Cancerous
1/104 1%
3/830 0%
Pancreatic Carcinoma
4/89 4%
2/1611 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in MAG 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 1,373 mutations in MAG

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