C3orf33

Mitochondrial inner membrane subdomain organizer 1 Q6P1S2 MISO1_HUMAN
Swiss-Prot reviewed
Mutations
243
CL 47 · Tissue 195
Samples
128
CL 28 · Tissue 99
Peptides
100
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
Mutations24347195
Samples1282899
Peptides1002180

Function

C3orf33 · Mitochondrial inner membrane subdomain organizer 1

Regulates mitochondrial morphology and mitochondrial DNA (mtDNA) homeostasis. Promotes the formation of specialized mitochondrial subdomains called small MTFP1-enriched mitochondria (SMEM). Negatively regulates mitochondrial fusion by excluding fusion coordinator OPA1 from SMEM. Recruits mtDNA, potentially through interaction with SSBP1, and facilitates mtDNA transport to the mitochondrial periphery. Also recruits other proteins, including PHB1, PHB2 and MTFP1, into SMEM which promotes peripheral mitochondrial fission, facilitating lysosome-mediated clearance of damaged mtDNA via mitophagy

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
ENST00000340171 Q6P1S2 133 93
ENST00000534941 Q6P1S2-2 110 81

Gene Properties

Recurrent Mutations

All 93 amino-acid changes on canonical ENST00000340171 · 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 C3orf33 · 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 C3orf33 – 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%
Glioblastoma
2/98 2%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
2/133 2%
Endometrial Carcinoma
3/42 7%
5/612 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Non-Small Cell Lung Carcinoma
6/304 2%
6/1390 0%
Squamous Cell Lung Carcinoma
0/57 0%
5/810 1%
Melanoma
1/210 0%
11/1899 1%
Thyroid Gland Carcinoma
0/45 0%
9/1592 1%
Colorectal Carcinoma
3/143 2%
13/3239 0%
Mesothelioma
1/62 2%
0/165 0%
Head and Neck Carcinoma
3/85 4%
4/1574 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Other Solid Cancers
1/94 1%
5/1515 0%
Hepatocellular Carcinoma
0/46 0%
7/2210 0%
Bladder Carcinoma
0/58 0%
3/956 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%
Other Sarcomas
0/69 0%
2/699 0%
Glioma
0/52 0%
5/2127 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Medulloblastoma
0/0 0%
1/450 0%
Wilms Tumour
0/5 0%
1/474 0%
Non-Cancerous
1/104 1%
1/830 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
Gastric Carcinoma
0/74 0%
3/1809 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
2/2550 0%
Kidney Carcinoma
0/85 0%
2/1862 0%
Neuroblastoma
0/87 0%
1/1331 0%
Breast Carcinoma
0/144 0%
2/3264 0%

Mutation Distribution

Where C3orf33 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in C3orf33 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 243 mutations in C3orf33

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