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n. A nonproteinaceous organic substance that usually contains a vitamin or mineral and combines with a specific protein, the apoenzyme, to form an active enzyme system.

n. Any small molecule that is necessary for the functioning of an enzyme.

a molecule that is essential for the activity of some enzymes; it may exist free in solution within a living organism, but functions by binding to an enzyme to assist in catalyzing a reaction. The molecule itself may be temporarily changed during the reaction, but is ultimately restored to its original form. Many vitamins function as coenzymes.

n. a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes

"~ Low-Dose CoQ10 Supplements Won't Ease Parkinson's (HealthDay) -- "Low doses of an antioxidant called coenzyme Q10 (CoQ10), sold as a dietary supplement, do not appear to improve Parkinson's disease symptoms, a German study finds.""

molecule   

cocarboxylase    nicotinamide adenine dinucleotide phosphate    triphosphopyridine nucleotide    thiamine pyrophosphate    ubiquinone   

coenzyme A    coenzyme Q   

inspect    reality    3-101    Mr.    ==========