transmethylation: meaning, definition, pronunciation and examples
Very lowHighly technical/scientific
Quick answer
What does “transmethylation” mean?
The transfer of a methyl group (CH₃) from one molecule to another.
Audio
Pronunciation
Definition
Meaning and Definition
The transfer of a methyl group (CH₃) from one molecule to another.
A biochemical reaction in which a methyl group is moved between compounds, often involving cofactors like S-adenosylmethionine; a subset of transalkylation reactions crucial in metabolism, gene regulation (epigenetics), and detoxification pathways.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. Usage is identical across scientific English.
Connotations
Purely technical, no regional connotations.
Frequency
Equally rare in both varieties, confined to specialist literature.
Grammar
How to Use “transmethylation” in a Sentence
The [enzyme] catalyzes the transmethylation of [substrate] to [product].[Compound A] acts as a methyl donor in the transmethylation reaction.Vocabulary
Collocations
Examples
Examples of “transmethylation” in a Sentence
verb
British English
- The enzyme can transmethylate a variety of substrate molecules.
American English
- The compound is designed to transmethylate the target protein.
adjective
British English
- The transmethylation activity of the protein was assayed.
American English
- Researchers identified a key transmethylation enzyme.
Usage
Meaning in Context
Business
Not used.
Academic
Used in advanced biochemistry, genetics, and pharmacology research papers and textbooks.
Everyday
Not used.
Technical
Core term in descriptions of metabolic pathways, epigenetic modifications, and drug metabolism.
Vocabulary
Synonyms of “transmethylation”
Neutral
Weak
Vocabulary
Antonyms of “transmethylation”
Watch out
Common Mistakes When Using “transmethylation”
- Confusing it with general 'methylation' (which can imply addition from a simple source, not necessarily transfer between two compounds).
- Misspelling as 'transmethylisation' (British) is not standard; the '-ation' suffix is universal.
FAQ
Frequently Asked Questions
No. Methylation is a broader term for adding a methyl group from any source. Transmethylation specifically refers to the transfer of a methyl group from one molecule (the donor) to another (the acceptor).
It is crucial for many biological processes, including the regulation of gene expression (epigenetics via DNA/histone methylation), metabolism, and the detoxification and breakdown of various compounds.
S-adenosylmethionine (SAM) is the primary biological methyl donor in most transmethylation reactions.
No, it is a highly specialised scientific term. Using it outside a technical context would likely cause confusion.
The transfer of a methyl group (CH₃) from one molecule to another.
Transmethylation is usually highly technical/scientific in register.
Transmethylation: in British English it is pronounced /ˌtrænzmɛθɪˈleɪʃ(ə)n/, and in American English it is pronounced /ˌtrænzmɛθəˈleɪʃən/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'TRANSfer of a METHYL group' – transmethylation.
Conceptual Metaphor
A postal service for chemical tags (methyl groups being 'delivered' from a donor to an acceptor molecule).
Practice
Quiz
Transmethylation is most closely associated with which field?