NSUN3

NOP2/Sun RNA methyltransferase 3 Q9H649 NSUN3_HUMAN
Protein Coding Chr 3 3q11.2 Swiss-Prot reviewed Entrez 63899
Mutations
166
CL 32 · Tissue 132
Samples
161
CL 32 · Tissue 127
Peptides
129
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
Mutations16632132
Samples16132127
Peptides12920114

Function

NSUN3 · NOP2/Sun RNA methyltransferase 3

Enables tRNA (cytosine-5-)-methyltransferase activity. Involved in regulation of mitochondrial translation and tRNA wobble base cytosine methylation. Located in mitochondrial matrix. Implicated in combined oxidative phosphorylation deficiency 48. [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
ENST00000314622 Q9H649 166 129

Gene Properties

Type
Protein Coding
Chromosome
3
Cytoband
3q11.2
Entrez ID
Aliases
COXPD48MST077MSTP077

Recurrent Mutations

All 129 amino-acid changes on canonical ENST00000314622 · 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 NSUN3 · 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 NSUN3 – 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
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Colorectal Carcinoma
10/143 7%
25/3239 1%
Rhabdomyosarcoma
2/33 6%
0/171 0%
Endometrial Carcinoma
2/42 5%
4/612 1%
Squamous Cell Lung Carcinoma
0/57 0%
7/810 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Neuroendocrine Tumour
5/154 3%
0/577 0%
Small Cell Lung Carcinoma
0/9 0%
5/752 1%
Non-Small Cell Lung Carcinoma
1/304 0%
9/1390 1%
Melanoma
2/210 1%
10/1899 1%
Plasma Cell Myeloma
2/44 5%
0/305 0%
Gastric Carcinoma
0/74 0%
10/1809 1%
Osteosarcoma
0/45 0%
1/166 1%
Burkitts Lymphoma
0/32 0%
1/196 1%
Glioma
0/52 0%
8/2127 0%
Other Solid Cancers
2/94 2%
3/1515 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
6/2550 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Hepatocellular Carcinoma
0/46 0%
6/2210 0%
Other Sarcomas
2/69 3%
0/699 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Medulloblastoma
0/0 0%
1/450 0%
Kidney Carcinoma
0/85 0%
4/1862 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
4/2534 0%
Breast Carcinoma
0/144 0%
4/3264 0%
Non-Cancerous
0/104 0%
1/830 0%
Bladder Carcinoma
0/58 0%
1/956 0%

Mutation Distribution

Where NSUN3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in NSUN3 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 166 mutations in NSUN3

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