It consists of an adenine nucleotide joined to a nicotinamide nucleotide. NAD + acts as an electron carrier in redox reactions, such as the citric acid cycle and the electron transport chain, enabling ...

Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells. This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups.

In DNA, adenine pairs with thymine (T) through two hydrogen bonds, while in RNA, it pairs with uracil (U). Adenine is also a component of important biomolecules such as ATP (adenosine triphosphate), ...