What is Nicotinamide Adenine Dinucleotide Phosphate (NADP+)?

NADP+ Definition

NADP+ is a coenzyme that functions as a universal electron carrier, accepting electrons and hydrogen atoms to form NADPH, or nicotinamide adenine dinucleotide phosphate. NADP+ is created in anabolic reactions, or reaction that build large molecules from small molecules. NADPH donates the hydrogen (H) and associated electrons, oxidizing the molecule to create NADP+. This molecule is typically at a lower concentration than its counterpart NADPH, which favors the release of the hydrogen and electron from NADPH.

Function of NADP

NADP+ functions alongside many enzymes to provide energy to the many reactions in a cell. NADP+ is the used form of NADPH, and must be reduced with more electrons and a hydrogen. This is typically done during photosynthesis in plants, or as part of sugar digestion in animals. The release of energy from the bonds of sugar, or the input of energy from the sun, allows the cells of these organisms to bind hydrogen with two electrons to NADP+, creating NADPH which can move this energy, electrons, and hydrogen to a new reaction within the cell.

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