Methyltransferases

Part of speech: noun

Definitions

1. An enzyme that transfers a methyl group from one molecule to another, facilitating various biochemical reactions
2. A class of enzymes responsible for adding methyl groups to substrates, impacting gene expression and metabolism
3. Biological catalysts that mediate methylation processes, playing crucial roles in cellular regulation and signaling

Etymology: Methyltransferases are a plural form, so the key is the singular "methyltransferase," which is built from two parts: "methyl" and "transferase." "Methyl" comes from "methylene," a chemical name derived from Greek "methy," meaning wine, combined with "hyle," meaning wood or matter. Chemists used it for the CH3 group, which is found in methanol, once called wood alcohol. The "-ase" ending is the standard suffix for enzymes, and "transferase" names a class of enzymes that move a chemical group from one molecule to another. Put together, a methyltransferase is an enzyme that takes a methyl group from one molecule and attaches it to another. The name describes the job exactly: it is a methyl group handed across, which is why the term looks so literal once the parts are known.

Synonyms: methylases, enzymes, transferases, catalysts, biocatalysts