INPP5K

Inositol polyphosphate-5-phosphatase K Q9BT40 INP5K_HUMAN
Protein Coding Chr 17 17p13.3 Swiss-Prot reviewed Entrez 51763
Mutations
445
CL 74 · Tissue 360
Samples
165
CL 34 · Tissue 123
Peptides
135
unique mutant peptides
Transcripts
3
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
Mutations44574360
Samples16534123
Peptides13528104

Function

INPP5K · Inositol polyphosphate-5-phosphatase K

This gene encodes a protein with 5-phosphatase activity toward polyphosphate inositol. The protein localizes to the cytosol in regions lacking actin stress fibers. It is thought that this protein may negatively regulate the actin cytoskeleton. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Oct 2008].

Isoforms & Proteins

3 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
ENST00000421807 Q9BT40 178 132
ENST00000406424 Q9BT40-2 134 98
ENST00000320345 Q9BT40-2 133 97

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17p13.3
Entrez ID
Aliases
MDCCAIDPPSSKIP

Recurrent Mutations

All 132 amino-acid changes on canonical ENST00000421807 · 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 INPP5K · 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 INPP5K – 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
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Endometrial Carcinoma
1/42 2%
8/612 1%
Colorectal Carcinoma
7/143 5%
34/3239 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Melanoma
2/210 1%
16/1899 1%
Cervical Carcinoma
1/35 3%
2/422 0%
Ewings Sarcoma
1/63 2%
1/262 0%
Rhabdomyosarcoma
1/33 3%
0/171 0%
Osteosarcoma
1/45 2%
0/166 0%
Squamous Cell Lung Carcinoma
0/57 0%
4/810 0%
Medulloblastoma
0/0 0%
2/450 0%
Gastric Carcinoma
0/74 0%
8/1809 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Ovarian Carcinoma
0/109 0%
4/998 0%
Non-Cancerous
0/104 0%
3/830 0%
Other Solid Cancers
1/94 1%
4/1515 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Glioma
0/52 0%
6/2127 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%
Other Sarcomas
0/69 0%
2/699 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Thyroid Gland Carcinoma
0/45 0%
4/1592 0%
B-Cell Non-Hodgkins Lymphoma
3/88 3%
3/2534 0%
Wilms Tumour
0/5 0%
1/474 0%
Breast Carcinoma
6/144 4%
1/3264 0%
Bladder Carcinoma
0/58 0%
2/956 0%
Prostate Carcinoma
2/13 15%
2/2105 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
5/2550 0%

Mutation Distribution

Where INPP5K is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in INPP5K 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 445 mutations in INPP5K

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