NAD

**Definition:** A coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH). (Dorland, 27th ed)

**Tree numbers:** - D03.633.100.759.646.138.694 - D08.211.589 - D13.695.667.138.694 - D13.695.827.068.694

**Synonyms:** - Coenzyme I - Dihydronicotinamide Adenine Dinucleotide - Nadide - DPN - Nicotinamide-Adenine Dinucleotide - Diphosphopyridine Nucleotide