Nicotinamide Adenine Dinucleotide (NADH)

3D ModelNoAI

Nicotinamide Adenine Dinucleotide (NAD) is a coenzyme that exists in all living cells and is involved in metabolism. It consists of an adenine mononucleotide (AMP) and a nicotinamide nucleotide joined by a pyrophosphate bond. NAD can donate or accept a hydride ion (H-), making it an important electron carrier in cellular processes. It exists in the cell in an oxidized form, NAD+, and a reduced form, NADH (shown above).

NADH is produced during cellular respiration through glycolysis, pyruvate oxidation, and the citric acid cycle (TCA). In the final step of cellular respiration, oxidative phosphorylation, NADH is transported to the electron transport chain (ETC) in the mitochondrial matrix. In Complex I (NADH Dehydrogenase) of the ETC, NADH is oxidized to NAD+ by the prosthetic group FMN.

This model was generated using the web-based 3D model viewer MolView and Jmol, an open-source viewer for molecular structures. Chemical elements in the molecule were colored according to the CPK coloring system.