GNAI2

G protein subunit alpha i2 P04899 GNAI2_HUMAN
Protein Coding Chr 3 3p21.31 Swiss-Prot reviewed Entrez 2771
Mutations
1,002
CL 98 · Tissue 869
Samples
227
CL 42 · Tissue 179
Peptides
154
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
Mutations1,00298869
Samples22742179
Peptides15432126

Function

GNAI2 · G protein subunit alpha i2

The protein encoded by this gene is an alpha subunit of guanine nucleotide binding proteins (G proteins). The encoded protein contains the guanine nucleotide binding site and is involved in the hormonal regulation of adenylate cyclase. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013].

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
ENST00000313601 P04899 236 133
ENST00000451956 P04899-3 204 119
ENST00000422163 P04899-5 202 117
ENST00000266027 P04899-6 180 107
ENST00000440628 P04899-6 180 107

Gene Properties

Type
Protein Coding
Chromosome
3
Cytoband
3p21.31
Entrez ID
Aliases
GIPGNAI2BHG1CH_LUCA15.1H_LUCA16.1

Recurrent Mutations

All 133 amino-acid changes on canonical ENST00000313601 · 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 GNAI2 · 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 GNAI2 – 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
4/40 10%
0/0 0%
Burkitts Lymphoma
0/32 0%
22/196 11%
Endometrial Carcinoma
2/42 5%
10/612 2%
Melanoma
6/210 3%
23/1899 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Colorectal Carcinoma
7/143 5%
30/3239 1%
Glioblastoma
1/98 1%
0/0 0%
Plasma Cell Myeloma
0/44 0%
3/305 1%
B-Cell Non-Hodgkins Lymphoma
5/88 6%
15/2534 1%
Gastric Carcinoma
0/74 0%
14/1809 1%
Ewings Sarcoma
2/63 3%
0/262 0%
Bladder Carcinoma
0/58 0%
6/956 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Other Sarcomas
2/69 3%
2/699 0%
Other Solid Cancers
1/94 1%
7/1515 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Squamous Cell Lung Carcinoma
2/57 4%
1/810 0%
Other Blood Cancers
1/61 2%
8/2725 0%
Thyroid Gland Carcinoma
1/45 2%
4/1592 0%
Head and Neck Carcinoma
1/85 1%
4/1574 0%
Glioma
0/52 0%
6/2127 0%
Prostate Carcinoma
0/13 0%
5/2105 0%
Kidney Carcinoma
0/85 0%
4/1862 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
Breast Carcinoma
1/144 1%
5/3264 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Pancreatic Carcinoma
2/89 2%
1/1611 0%
Ovarian Carcinoma
0/109 0%
2/998 0%
B-Lymphoblastic Leukemia
2/55 4%
2/2640 0%
Neuroendocrine Tumour
0/154 0%
1/577 0%

Mutation Distribution

Where GNAI2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in GNAI2 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 1,002 mutations in GNAI2

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