ITPK1

Inositol-tetrakisphosphate 1-kinase Q13572 ITPK1_HUMAN
Protein Coding Chr 14 14q32.12 Swiss-Prot reviewed Entrez 3705
Mutations
722
CL 66 · Tissue 650
Samples
220
CL 34 · Tissue 183
Peptides
178
unique mutant peptides
Transcripts
4
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
Mutations72266650
Samples22034183
Peptides17825154

Function

ITPK1 · Inositol-tetrakisphosphate 1-kinase

This gene encodes an enzyme that belongs to the inositol 1,3,4-trisphosphate 5/6-kinase family. This enzyme regulates the synthesis of inositol tetraphosphate, and downstream products, inositol pentakisphosphate and inositol hexakisphosphate. Inositol metabolism plays a role in the development of the neural tube. Disruptions in this gene are thought to be associated with neural tube defects. A pseudogene of this gene has been identified on chromosome X. [provided by RefSeq, Jul 2016].

Isoforms & Proteins

4 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
ENST00000267615 Q13572 223 166
ENST00000556603 Q13572 199 153
ENST00000354313 Q13572-2 160 129
ENST00000555495 G3V4M9* 140 107

Gene Properties

Type
Protein Coding
Chromosome
14
Cytoband
14q32.12
Entrez ID
Aliases
ITRPK1

Recurrent Mutations

All 166 amino-acid changes on canonical ENST00000267615 · 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 ITPK1 · 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 ITPK1 – 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%
Unknown
1/10 10%
0/29 0%
Endometrial Carcinoma
1/42 2%
13/612 2%
Squamous Cell Lung Carcinoma
2/57 4%
8/810 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Melanoma
3/210 1%
19/1899 1%
Colorectal Carcinoma
4/143 3%
26/3239 1%
Cervical Carcinoma
2/35 6%
2/422 0%
Gastric Carcinoma
0/74 0%
16/1809 1%
Non-Small Cell Lung Carcinoma
6/304 2%
7/1390 0%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Other Solid Cancers
1/94 1%
10/1515 1%
Ovarian Carcinoma
2/109 2%
5/998 0%
Thyroid Gland Carcinoma
0/45 0%
10/1592 1%
Bladder Carcinoma
0/58 0%
6/956 1%
Non-Cancerous
0/104 0%
4/830 0%
Neuroendocrine Tumour
2/154 1%
1/577 0%
Other Sarcomas
2/69 3%
1/699 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
8/2550 0%
Head and Neck Carcinoma
0/85 0%
6/1574 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Prostate Carcinoma
0/13 0%
6/2105 0%
Glioma
0/52 0%
6/2127 0%
Breast Carcinoma
0/144 0%
9/3264 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Medulloblastoma
0/0 0%
1/450 0%
Kidney Carcinoma
1/85 1%
3/1862 0%

Mutation Distribution

Where ITPK1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ITPK1 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 722 mutations in ITPK1

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