Definition, Meaning & Synonyms

cofactor

Noun
/ˈkoʊˌfæktər/
Definition
A cofactor is a non-protein chemical compound or metallic ion that is required for the activity of a biological molecule, typically an enzyme.
Examples
  • The vitamin acts as a cofactor in enzymatic reactions.
  • Carbonic anhydrase requires zinc as a cofactor to catalyze the conversion of carbon dioxide to bicarbonate.
  • Some enzymes need more than one cofactor to perform their functions effectively.
Meaning
In biochemistry, cofactors help enzymes to function and facilitate biochemical reactions in the body.
Synonyms
  • Activator
  • Helper molecule
  • Catalyst