Adenosine triphosphate

Adenosine triphosphate

Identifiers
CAS Number	56-65-5 Y
3D model (Jmol)	Interactive image Interactive image
ChEBI	CHEBI:15422 Y
ChEMBL	ChEMBL14249 Y
ChemSpider	5742 Y
DrugBank	DB00171 Y
ECHA InfoCard	100.000.258
IUPHAR/BPS	1713
KEGG	C00002 Y
PubChem	5957
UNII	8L70Q75FXE Y
InChI InChI=1S/C10H16N5O13P3/c11-8-5-9(13-2-12-8)15(3-14-5)10-7(17)6(16)4(26-10)1-25-30(21,22)28-31(23,24)27-29(18,19)20/h2-4,6-7,10,16-17H,1H2,(H,21,22)(H,23,24)(H2,11,12,13)(H2,18,19,20)/t4-,6-,7-,10-/m1/s1 Y Key: ZKHQWZAMYRWXGA-KQYNXXCUSA-N Y Key: ZKHQWZAMYRWXGA-KQYNXXCUBG
SMILES O=P(O)(O)OP(=O)(O)OP(=O)(O)OC[C@H]3O[C@@H](n2cnc1c(ncnc12)N)[C@H](O)[C@@H]3O c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N
Properties
Chemical formula	C10H16N5O13P3
Molar mass	507.18 g/mol
Density	1.04 g/cm3 (disodium salt)
Melting point	187 °C (369 °F; 460 K) disodium salt; decomposes
Acidity (pKa)	6.5
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Adenosine triphosphate (ATP) is a nucleoside triphosphate (NTP) a small molecule used in cells as a coenzyme. It is often referred to as the "molecular unit of currency" of intracellular energy transfer.

ATP transports chemical energy within cells for metabolism. Most cellular functions need energy in order to be carried out: synthesis of proteins, synthesis of membranes, movement of the cell, cellular division, transport of various solutes etc. The ATP is the molecule that carries energy to the place where the energy is needed. When ATP breaks into ADP (Adenosine diphosphate) and P_i (phosphate), the breakdown of the last covalent link of phosphate (a simple -PO₄) liberates energy that is used in reactions where it is needed.

It is one of the end products of photophosphorylation, aerobic respiration, and fermentation, and is used by enzymes and structural proteins in many cellular processes, including biosynthetic reactions, motility, and cell division. One molecule of ATP contains adenine, ribose, and three phosphate groups, and it is produced by a wide variety of enzymes, including ATP synthase, from adenosine diphosphate (ADP) or adenosine monophosphate (AMP) and various phosphate group donors. Substrate-level phosphorylation, oxidative phosphorylation in cellular respiration, and photophosphorylation in photosynthesis are three major mechanisms of ATP biosynthesis.