TMEM120B

Transmembrane protein 120B A0PK00 T120B_HUMAN
Protein Coding Chr 12 12q24.31 Swiss-Prot reviewed Entrez 144404
Mutations
217
CL 45 · Tissue 166
Samples
194
CL 40 · Tissue 148
Peptides
144
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
Mutations21745166
Samples19440148
Peptides14435112

Function

TMEM120B · Transmembrane protein 120B

Predicted to be involved in fat cell differentiation and protein heterooligomerization. Predicted to be integral component of membrane. Predicted to be active in nuclear inner membrane. [provided by Alliance of Genome Resources, Apr 2022]

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
ENST00000449592 A0PK00 169 114
ENST00000540377 F5H465* 48 30

Gene Properties

Type
Protein Coding
Chromosome
12
Cytoband
12q24.31
Entrez ID

Recurrent Mutations

All 114 amino-acid changes on canonical ENST00000449592 · 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 TMEM120B · 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 TMEM120B – 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
3/40 8%
0/0 0%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Glioblastoma
3/98 3%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
4/133 3%
Thymic Epithelial Tumor
0/0 0%
1/39 3%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Endometrial Carcinoma
1/42 2%
8/612 1%
Melanoma
6/210 3%
17/1899 1%
Cervical Carcinoma
0/35 0%
5/422 1%
Plasma Cell Myeloma
3/44 7%
0/305 0%
Colorectal Carcinoma
6/143 4%
18/3239 1%
Gastric Carcinoma
0/74 0%
12/1809 1%
Head and Neck Carcinoma
1/85 1%
9/1574 1%
Esophageal Squamous Cell Carcinoma
0/51 0%
14/2550 1%
Non-Cancerous
0/104 0%
5/830 1%
Biliary Tract Carcinoma
0/54 0%
5/950 1%
Osteosarcoma
0/45 0%
1/166 1%
Non-Small Cell Lung Carcinoma
1/304 0%
7/1390 0%
Glioma
0/52 0%
10/2127 0%
Ovarian Carcinoma
0/109 0%
5/998 0%
Pancreatic Carcinoma
0/89 0%
6/1611 0%
Thyroid Gland Carcinoma
0/45 0%
5/1592 0%
Other Solid Cancers
2/94 2%
3/1515 0%
Neuroendocrine Tumour
1/154 1%
1/577 0%
Small Cell Lung Carcinoma
1/9 11%
1/752 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Breast Carcinoma
3/144 2%
5/3264 0%
Kidney Carcinoma
1/85 1%
2/1862 0%
Other Sarcomas
1/69 1%
0/699 0%
Squamous Cell Lung Carcinoma
1/57 2%
0/810 0%

Mutation Distribution

Where TMEM120B is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in TMEM120B 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 217 mutations in TMEM120B

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