MeSH 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);
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)