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Adenosine triphosphate

Energy-carrying molecule in living cells / From Wikipedia, the free encyclopedia

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Adenosine triphosphate (ATP) is an organic compound that provides energy to drive and support many processes in living cells, such as muscle contraction, nerve impulse propagation, condensate dissolution, and chemical synthesis. Found in all known forms of life, ATP is often referred to as the "molecular unit of currency" of intracellular energy transfer.[2] When consumed in metabolic processes, it converts either to adenosine diphosphate (ADP) or to adenosine monophosphate (AMP). Other processes regenerate ATP. The human body recycles its own body weight equivalent in ATP each day.[3] It is also a precursor to DNA and RNA, and is used as a coenzyme.

Quick facts: Names, Identifiers, Properties... ▼
Adenosine-5'-triphosphate
Adenosintriphosphat_protoniert.svg
ATP-xtal-3D-balls.png
ATP-xtal-3D-vdW.png
Names
IUPAC name
Adenosine 5′-(tetrahydrogen triphosphate)
Systematic IUPAC name
O1-{[(2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl} tetrahydrogen triphosphate
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.000.258 Edit this at Wikidata
KEGG
UNII
  • 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 checkY
    Key: ZKHQWZAMYRWXGA-KQYNXXCUSA-N checkY
  • Key: ZKHQWZAMYRWXGA-KQYNXXCUBG
  • 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
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) 0.9, 1.4, 3.8, 6.5
UV-vis (λmax) 259 nm[1]
Absorbance ε259 = 15.4 mM−1 cm−1 [1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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A chemical formula
Interactive animation of the structure of ATP

From the perspective of biochemistry, ATP is classified as a nucleoside triphosphate, which indicates that it consists of three components: a nitrogenous base (adenine), the sugar ribose, and the triphosphate.