TMEM240

Transmembrane protein 240 Q5SV17 TM240_HUMAN
Protein Coding Chr 1 1p36.33 Swiss-Prot reviewed Entrez 339453
Mutations
75
CL 17 · Tissue 53
Samples
61
CL 17 · Tissue 42
Peptides
50
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
Mutations751753
Samples611742
Peptides501038

Function

TMEM240 · Transmembrane protein 240

This gene encodes a transmembrane-domain containing protein found in the brain and cerebellum. Mutations in this gene result in spinocerebellar ataxia 21. [provided by RefSeq, Dec 2014].

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
ENST00000378733 Q5SV17 65 49
ENST00000624426 A0A096LNN7* 10 8

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p36.33
Entrez ID
Aliases
C1orf70SCA21

Recurrent Mutations

All 49 amino-acid changes on canonical ENST00000378733 · 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 TMEM240 · 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 TMEM240 – 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
1/40 2%
0/0 0%
Colorectal Carcinoma
4/143 3%
13/3239 0%
Gastric Carcinoma
1/74 1%
5/1809 0%
Melanoma
2/210 1%
4/1899 0%
Medulloblastoma
0/0 0%
1/450 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Non-Small Cell Lung Carcinoma
1/304 0%
2/1390 0%
Endometrial Carcinoma
0/42 0%
1/612 0%
Other Sarcomas
0/69 0%
1/699 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Hepatocellular Carcinoma
1/46 2%
2/2210 0%
Breast Carcinoma
2/144 1%
2/3264 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Non-Cancerous
0/104 0%
1/830 0%
Ovarian Carcinoma
0/109 0%
1/998 0%
Glioma
2/52 4%
0/2127 0%
Other Blood Cancers
2/61 3%
0/2725 0%
Pancreatic Carcinoma
0/89 0%
1/1611 0%
Head and Neck Carcinoma
0/85 0%
1/1574 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
1/2534 0%

Mutation Distribution

Where TMEM240 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in TMEM240 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 75 mutations in TMEM240

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