BHMT

Betaine--homocysteine S-methyltransferase Q93088 BHMT1_HUMAN
Protein Coding Chr 5 5q14.1 Swiss-Prot reviewed Entrez 635
Mutations
367
CL 60 · Tissue 304
Samples
232
CL 41 · Tissue 189
Peptides
180
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
Mutations36760304
Samples23241189
Peptides18031151

Function

BHMT · Betaine--homocysteine S-methyltransferase

This gene encodes a cytosolic enzyme that catalyzes the conversion of betaine and homocysteine to dimethylglycine and methionine, respectively. Defects in this gene could lead to hyperhomocyst(e)inemia, but such a defect has not yet been observed. [provided by RefSeq, Jul 2008].

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
ENST00000274353 Q93088 239 170
ENST00000524080 E5RJH0* 128 97

Gene Properties

Type
Protein Coding
Chromosome
5
Cytoband
5q14.1
Entrez ID
Aliases
BHMT1HEL-S-61p

Recurrent Mutations

All 170 amino-acid changes on canonical ENST00000274353 · 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 BHMT · 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 BHMT – 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
Gastrointestinal Stromal Tumour
0/0 0%
6/133 5%
Endometrial Carcinoma
3/42 7%
14/612 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Melanoma
5/210 2%
31/1899 2%
Colorectal Carcinoma
13/143 9%
20/3239 1%
Squamous Cell Lung Carcinoma
0/57 0%
8/810 1%
Small Cell Lung Carcinoma
0/9 0%
7/752 1%
Other Solid Cancers
2/94 2%
11/1515 1%
Non-Small Cell Lung Carcinoma
0/304 0%
12/1390 1%
Plasma Cell Myeloma
1/44 2%
1/305 0%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Kidney Carcinoma
1/85 1%
9/1862 0%
Ovarian Carcinoma
0/109 0%
5/998 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Gastric Carcinoma
0/74 0%
7/1809 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Thyroid Gland Carcinoma
1/45 2%
4/1592 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Pancreatic Carcinoma
0/89 0%
5/1611 0%
Glioma
0/52 0%
6/2127 0%
Esophageal Carcinoma
1/23 4%
1/769 0%
Breast Carcinoma
2/144 1%
6/3264 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Other Blood Cancers
1/61 2%
5/2725 0%
Non-Cancerous
0/104 0%
2/830 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
4/2550 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in BHMT 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 367 mutations in BHMT

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