The following points highlight the two main groups of coenzymes. The groups are: 1. Specific Coenzymes 2. General Activators. Group # 1. Specific Coenzymes: These are usually organic compounds of complicated structure often acting as carriers of some chemical group. Many coenzymes are either vitamins or derivatives of vitamins. Depending upon the nature of chemical group which they carry, the [...]
In this article we will discuss about the structure and function of various coenzymes. 1. NAD/NADP: Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) are derivatives of the B-vitamin, nicotinic acid. The structures are shown in Fig. 8.30: NAD and NADP act as conezymes for many degydrogenases where they are involved in transfer of hydrogen, causing either oxidation [...]
The below mentioned article provides a short note on Coenzymes:- 1. Meaning of Coenzymes 2. Classification of Coenzymes 3. Coenzyme A (CoA). Meaning of Coenzymes: Many reactions of substrates are catalyzed by enzymes only in the presence of a specific non-protein organic molecule called the coenzyme. Coenzymes combine with the apoenzyme (the protein part) to form holoenzyme. The coenzymes are [...]