MCUB

Mitochondrial calcium uniporter dominant negative subunit beta Q9NWR8 MCUB_HUMAN
Protein Coding Chr 4 4q25 Swiss-Prot reviewed Entrez 55013
Mutations
149
CL 33 · Tissue 115
Samples
143
CL 33 · Tissue 109
Peptides
98
unique mutant peptides
Transcripts
1
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
Mutations14933115
Samples14333109
Peptides982375

Function

MCUB · Mitochondrial calcium uniporter dominant negative subunit beta

Predicted to enable calcium channel inhibitor activity. Predicted to be involved in calcium import into the mitochondrion and mitochondrial calcium ion homeostasis. Located in mitochondrion and nucleoplasm. Is integral component of mitochondrial inner membrane. Part of uniplex complex. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

1 transcript · 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
ENST00000394650 Q9NWR8 149 98

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q25
Entrez ID
Aliases
CCDC109B

Recurrent Mutations

All 98 amino-acid changes on canonical ENST00000394650 · 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 MCUB · 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 MCUB – 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%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
3/133 2%
Endometrial Carcinoma
4/42 10%
8/612 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Glioblastoma
1/98 1%
0/0 0%
Burkitts Lymphoma
0/32 0%
2/196 1%
Squamous Cell Lung Carcinoma
4/57 7%
2/810 0%
Cervical Carcinoma
1/35 3%
2/422 0%
Melanoma
3/210 1%
11/1899 1%
Germ Cell Tumour
1/25 4%
0/169 0%
Colorectal Carcinoma
2/143 1%
15/3239 0%
Thyroid Gland Carcinoma
0/45 0%
8/1592 0%
Osteosarcoma
0/45 0%
1/166 1%
Mesothelioma
1/62 2%
0/165 0%
Gastric Carcinoma
0/74 0%
8/1809 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Other Sarcomas
3/69 4%
0/699 0%
Glioma
2/52 4%
5/2127 0%
Other Solid Cancers
0/94 0%
5/1515 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Non-Small Cell Lung Carcinoma
0/304 0%
4/1390 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Non-Cancerous
0/104 0%
2/830 0%
Breast Carcinoma
2/144 1%
5/3264 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
5/2550 0%
Ovarian Carcinoma
0/109 0%
2/998 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
2/2534 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in MCUB 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 149 mutations in MCUB

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