TRMT2A

TRNA methyltransferase 2A Q8IZ69 TRM2A_HUMAN
Protein Coding Chr 22 22q11.21 Swiss-Prot reviewed Entrez 27037
Mutations
1,126
CL 261 · Tissue 848
Samples
381
CL 160 · Tissue 216
Peptides
232
unique mutant peptides
Transcripts
4
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
Mutations1,126261848
Samples381160216
Peptides23245188

Function

TRMT2A · TRNA methyltransferase 2A

The protein encoded by this gene is of unknown function. However, it is orthologous to the mouse Trmt2a gene and contains an RNA methyltransferase domain. Expression of this gene varies during the cell cycle, with aberrant expression being a possible biomarker in certain breast cancers. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Apr 2012].

Isoforms & Proteins

4 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
ENST00000252136 Q8IZ69 387 212
ENST00000439169 F2Z2W7* 265 205
ENST00000403707 Q8IZ69 255 198
ENST00000404751 Q8IZ69-2 219 176

Gene Properties

Type
Protein Coding
Chromosome
22
Cytoband
22q11.21
Entrez ID
Aliases
HTF9C

Recurrent Mutations

All 212 amino-acid changes on canonical ENST00000252136 · 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 TRMT2A · 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 TRMT2A – 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
4/40 10%
0/0 0%
Hodgkins Lymphoma
3/16 19%
3/122 2%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Cervical Carcinoma
4/35 11%
8/422 2%
Endometrial Carcinoma
5/42 12%
11/612 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Ewings Sarcoma
4/63 6%
3/262 1%
Germ Cell Tumour
4/25 16%
0/169 0%
Glioblastoma
2/98 2%
0/0 0%
Non-Small Cell Lung Carcinoma
16/304 5%
9/1390 1%
Plasma Cell Myeloma
5/44 11%
0/305 0%
Melanoma
12/210 6%
17/1899 1%
Colorectal Carcinoma
9/143 6%
37/3239 1%
Gastric Carcinoma
5/74 7%
18/1809 1%
Chondrosarcoma
1/14 7%
0/75 0%
Ovarian Carcinoma
6/109 6%
6/998 1%
Squamous Cell Lung Carcinoma
5/57 9%
4/810 0%
Bladder Carcinoma
0/58 0%
10/956 1%
Non-Cancerous
6/104 6%
3/830 0%
Head and Neck Carcinoma
7/85 8%
9/1574 1%
Neuroendocrine Tumour
7/154 5%
0/577 0%
Esophageal Squamous Cell Carcinoma
4/51 8%
18/2550 1%
Biliary Tract Carcinoma
2/54 4%
6/950 1%
Other Sarcomas
5/69 7%
1/699 0%
Other Solid Cancers
6/94 6%
6/1515 0%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Glioma
5/52 10%
11/2127 1%
Pancreatic Carcinoma
7/89 8%
4/1611 0%

Mutation Distribution

Where TRMT2A is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in TRMT2A 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 1,126 mutations in TRMT2A

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