Adenosine triphosphate

form of stored energy in organisms that is composed of a nucleotide with ribose sugar and three phosphates (Biology), ATP

Adenosine 5'-triphosphate (ATP) is a multifunctional nucleotide that is most important as a "molecular currency" of intracellular energy transfer. In this role, ATP transports chemical energy within cells for metabolism. It is produced as an energy source during the processes of photosynthesis and cellular respiration and consumed by many enzymes and a multitude of cellular processes including biosynthetic reactions, motility and cell division. In signal transduction pathways, ATP is used as a substrate by kinases that phosphorylate proteins and lipids, as well as by adenylate cyclase, which uses ATP to produce the second messenger molecule cyclic AMP.
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Adenosine triphosphate n. ATP. adenosine triphosphate, n the compound that is hydrolyzed to produce the energy necessary for metabolic processes. [more]Adenosine triphosphate - Community and Resources

Noun
1. a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
(synonym) ATP
(hypernym) nucleotide

n. adenosine triphosphate, form of stored energy in organisms that is composed of a nucleotide with ribose sugar, and three phosphates (Biology), ATP