GALK2

Galactokinase 2 Q01415 GALK2_HUMAN
Protein Coding Chr 15 15q21.1-q21.2 Swiss-Prot reviewed Entrez 2585
Mutations
908
CL 109 · Tissue 796
Samples
198
CL 37 · Tissue 158
Peptides
162
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
Mutations908109796
Samples19837158
Peptides16221142

Function

GALK2 · Galactokinase 2

This gene encodes a highly efficient N-acetylgalactosamine (GalNAc) kinase, which has galactokinase activity when galactose is present at high concentrations. The encoded protein is a member of the GHMP kinase family. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2017].

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
ENST00000560031 Q01415 201 155
ENST00000327171 Q01415-2 179 147
ENST00000396509 B7ZAX5* 176 145
ENST00000544523 B7ZAX5* 176 145
ENST00000559454 B7ZAX5* 176 145

Gene Properties

Type
Protein Coding
Chromosome
15
Cytoband
15q21.1-q21.2
Entrez ID
Aliases
GK2

Recurrent Mutations

All 155 amino-acid changes on canonical ENST00000560031 · 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 GALK2 · 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 GALK2 – 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
Endometrial Carcinoma
2/42 5%
7/612 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Melanoma
0/210 0%
23/1899 1%
Ewings Sarcoma
2/63 3%
1/262 0%
Cervical Carcinoma
0/35 0%
4/422 1%
Colorectal Carcinoma
8/143 6%
20/3239 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Squamous Cell Lung Carcinoma
0/57 0%
6/810 1%
Gastric Carcinoma
1/74 1%
12/1809 1%
Thyroid Gland Carcinoma
1/45 2%
10/1592 1%
Non-Small Cell Lung Carcinoma
4/304 1%
7/1390 0%
Small Cell Lung Carcinoma
0/9 0%
4/752 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Other Solid Cancers
0/94 0%
7/1515 0%
Hepatocellular Carcinoma
2/46 4%
8/2210 0%
Non-Cancerous
0/104 0%
4/830 0%
Neuroendocrine Tumour
2/154 1%
1/577 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Head and Neck Carcinoma
1/85 1%
5/1574 0%
Ovarian Carcinoma
3/109 3%
1/998 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
7/2550 0%
Glioma
0/52 0%
7/2127 0%
Bladder Carcinoma
1/58 2%
2/956 0%
Kidney Carcinoma
0/85 0%
5/1862 0%
Pancreatic Carcinoma
0/89 0%
4/1611 0%
Neuroblastoma
3/87 3%
0/1331 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
Breast Carcinoma
2/144 1%
4/3264 0%
B-Lymphoblastic Leukemia
2/55 4%
1/2640 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
3/2534 0%

Mutation Distribution

Where GALK2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in GALK2 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 908 mutations in GALK2

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