Dehydratase

Part of speech: noun

Definitions

1. An enzyme that catalyzes the removal of water molecules from organic substrates as part of metabolic reactions ; a biological catalyst facilitating dehydration synthesis or elimination processes ; a protein promoting the breakdown of compounds by eliminating water during enzymatic transformation
2. A type of enzyme responsible for the removal of water to form double bonds or ring structures in molecules ; a catalyst that participates in metabolic pathways by facilitating water removal ; a protein that speeds up chemical reactions involving elimination of water from substrates
3. An enzyme class that drives chemical reactions by extracting water from molecules to alter their structure ; a biological catalyst removing water to aid in synthesis or degradation pathways ; a protein enzyme that intervenes in metabolism by promoting dehydration of specific compounds

Etymology: Dehydratase is a straightforward chemist's coinage: "dehydrate" with the suffix "-ase", the standard ending for enzymes, the same ending that gives us names like diastase. The structure reveals the whole history. "De-" is the Latin prefix meaning "removal of," and "hydrate" traces back through French to the Greek "hudōr," meaning water, which also appears in words like hydrogen and hydraulic. The chain runs through the water root in Greek, the Latin-derived prefix "de-", and a French-derived verb "hydrate" that English chemists used for combining substances with water. Adding "de-" reverses that action, so "dehydrate" means to remove water. The enzyme name then describes the work the protein does: it removes water from a molecule. The "-ase" ending itself has a memorable origin. It was carved out of "diastase," the name given to an enzyme found in germinating barley, and the "-ase" ending was then used for enzymes in general. Dehydratase follows that pattern, so its name tells you both what the enzyme does and that it belongs to the family of enzymes.

Synonyms: dehydrase, enzyme