• Cofactor

    Full definition of cofactor

    Noun

    cofactor

    (plural cofactors)
    1. a contributing factor
    2. (biochemistry) a substance, especially a coenzyme or a metal, that must be present for an enzyme to function
    3. (biochemistry) a molecule that binds to and regulates the activity of a protein
    4. (mathematics) the result of a number being divided by one of its factors
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