GP9

Glycoprotein IX platelet P14770 GPIX_HUMAN
Protein Coding Chr 3 3q21.3 Swiss-Prot reviewed Entrez 2815
Mutations
133
CL 20 · Tissue 106
Samples
128
CL 20 · Tissue 101
Peptides
92
unique mutant peptides
Transcripts
1
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
Mutations13320106
Samples12820101
Peptides921580

Function

GP9 · Glycoprotein IX platelet

This gene encodes a small membrane glycoprotein found on the surface of human platelets. It forms a 1-to-1 noncovalent complex with glycoprotein Ib, a platelet surface membrane glycoprotein complex that functions as a receptor for von Willebrand factor. The complete receptor complex includes noncovalent association of the alpha and beta subunits with the protein encoded by this gene and platelet glycoprotein V. Defects in this gene are a cause of Bernard-Soulier syndrome, also known as giant platelet disease. These patients have unusually large platelets and have a clinical bleeding tendency. [provided by RefSeq, Oct 2008].

Isoforms & Proteins

1 transcript · 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
ENST00000307395 P14770 133 92

Gene Properties

Type
Protein Coding
Chromosome
3
Cytoband
3q21.3
Entrez ID
Aliases
CD42aGPIX

Recurrent Mutations

All 92 amino-acid changes on canonical ENST00000307395 · 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 GP9 · 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 GP9 – 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
2/40 5%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
3/133 2%
Melanoma
1/210 0%
16/1899 1%
Bladder Carcinoma
1/58 2%
7/956 1%
Squamous Cell Lung Carcinoma
3/57 5%
3/810 0%
Biliary Tract Carcinoma
0/54 0%
6/950 1%
Other Solid Cancers
1/94 1%
8/1515 1%
Colorectal Carcinoma
2/143 1%
16/3239 0%
Thyroid Gland Carcinoma
0/45 0%
8/1592 0%
Gastric Carcinoma
0/74 0%
9/1809 0%
Endometrial Carcinoma
1/42 2%
2/612 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Prostate Carcinoma
1/13 8%
5/2105 0%
Neuroendocrine Tumour
0/154 0%
2/577 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
7/2550 0%
Medulloblastoma
0/0 0%
1/450 0%
Non-Cancerous
0/104 0%
2/830 0%
Head and Neck Carcinoma
2/85 2%
1/1574 0%
Kidney Carcinoma
1/85 1%
2/1862 0%
Neuroblastoma
2/87 2%
0/1331 0%
Other Sarcomas
1/69 1%
0/699 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Ovarian Carcinoma
1/109 1%
0/998 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
2/2534 0%
Other Blood Cancers
0/61 0%
2/2725 0%
Breast Carcinoma
0/144 0%
2/3264 0%
Glioma
0/52 0%
1/2127 0%
Hepatocellular Carcinoma
1/46 2%
0/2210 0%

Mutation Distribution

Where GP9 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in GP9 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 37 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 133 mutations in GP9

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