SPATA18

Spermatogenesis associated 18 Q8TC71 MIEAP_HUMAN
Protein Coding Chr 4 4q12 Swiss-Prot reviewed Entrez 132671
Mutations
912
CL 134 · Tissue 765
Samples
452
CL 84 · Tissue 362
Peptides
341
unique mutant peptides
Transcripts
2
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
Mutations912134765
Samples45284362
Peptides34160290

Function

SPATA18 · Spermatogenesis associated 18

This gene encodes a p53-inducible protein that is able to induce lysosome-like organelles within mitochondria that eliminate oxidized mitochondrial proteins, thereby contributing to mitochondrial quality control. Dysregulation of mitochondrial quality control is associated with cancer and degenerative diseases. The encoded protein mediates accumulation of the lysosome-like mitochondrial organelles through interaction with B cell lymphoma 2 interacting protein 3 and B cell lymphoma 2 interacting protein 3 like at the outer mitochondrial membrane, which allows translocation of lysosomal proteins to the mitochondrial matrix from the cytosol. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016].

Isoforms & Proteins

2 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
ENST00000295213 Q8TC71 487 326
ENST00000419395 Q8TC71-2 425 294

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q12
Entrez ID
Aliases
MieapSPETEX1

Recurrent Mutations

All 326 amino-acid changes on canonical ENST00000295213 · 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 SPATA18 · 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 SPATA18 – 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
5/40 12%
0/0 0%
Melanoma
6/210 3%
73/1899 4%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Endometrial Carcinoma
6/42 14%
17/612 3%
Non-Small Cell Lung Carcinoma
10/304 3%
40/1390 3%
Gastrointestinal Stromal Tumour
0/0 0%
3/133 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Glioblastoma
2/98 2%
0/0 0%
Colorectal Carcinoma
9/143 6%
49/3239 2%
Gastric Carcinoma
1/74 1%
30/1809 2%
Hodgkins Lymphoma
0/16 0%
2/122 2%
Squamous Cell Lung Carcinoma
3/57 5%
9/810 1%
Other Solid Cancers
2/94 2%
18/1515 1%
Bladder Carcinoma
4/58 7%
8/956 1%
Hepatocellular Carcinoma
0/46 0%
23/2210 1%
Rhabdomyosarcoma
1/33 3%
1/171 1%
Esophageal Carcinoma
0/23 0%
7/769 1%
Burkitts Lymphoma
2/32 6%
0/196 0%
Small Cell Lung Carcinoma
0/9 0%
6/752 1%
Neuroendocrine Tumour
3/154 2%
2/577 0%
Cervical Carcinoma
0/35 0%
3/422 1%
Non-Cancerous
3/104 3%
3/830 0%
Ewings Sarcoma
2/63 3%
0/262 0%
Ovarian Carcinoma
1/109 1%
5/998 0%
Prostate Carcinoma
1/13 8%
10/2105 0%
Other Sarcomas
0/69 0%
4/699 1%
Germ Cell Tumour
1/25 4%
0/169 0%
Osteosarcoma
1/45 2%
0/166 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
12/2550 0%
Thyroid Gland Carcinoma
1/45 2%
6/1592 0%

Mutation Distribution

Where SPATA18 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SPATA18 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 912 mutations in SPATA18

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