High Quality Content by WIKIPEDIA articles! Nicotinamide adenine dinucleotide, abbreviated NAD+, is a coenzyme found in all living cells The compound is a dinucleotide, since it consists of two nucleotides joined through their phosphate groups, with one nucleotide containing an adenine base and the other containing nicotinamide In metabolism, однщп NAD+ is involved in redox reactions, carrying electrons from one reaction to another The coenzyme is therefore found in two forms in cells: NAD+ is an oxidizing agent ? it accepts electrons from other molecules and becomes reduced This reaction forms NADH, which can then be used as a reducing agent to donate electrons These electron transfer reactions are the main function of NAD+.  Рассказано2010 г Мягкая обложка, 128 стр ISBN 6130357133.