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Adenosine diphosphate



(1) A nucleotide made up of adenine, ribose, and two phosphate units; having a molecular formula: C10H15N5O10P2

(2) The product of ATP de-phosphorylation via ATPases to release energy; and can be converted to ATP by phosphorylation (addition of phosphate and energy) via ATP synthases to store energy.


Adenosine diphosphate or ADP is the result when ATP loses one of its phosphate groups when the energy is released to power up many vital cellular processes.

Abbreviation: ADP.
Compare: AMP, ATP.
See also: nucleoside diphosphate.

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Re: ATP ase vs. ADP ase

ATPases are a class of enzymes that catalyze the decomposition of adenosine triphosphate (ATP) into adenosine diphosphate (ADP) and a free phosphate ion. This dephosphorylation reaction releases energy, ...

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by bellyjelly
Tue Jul 12, 2011 7:20 am
Forum: Molecular Biology
Topic: ATP ase vs. ADP ase
Replies: 9
Views: 10178

The Fiber Disease

... linear protein motor uses chemical energy released in the conversion of adenosine triphosphate (ATP) to adenosine diphosphate and a phosphate ion. The hydrolysis of 1 mole of ATP releases about 10 kcal of ...

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by Nadas Moksha
Fri Oct 27, 2006 9:34 am
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 4988528

The Fiber Disease

... hormone/choriogonadotropin-dependent, cholera toxin-catalyzed adenosine 5'-diphosphate (ADP)-ribosylation of the long and short forms of Gs alpha and pertussis toxin-catalyzed ...

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by London
Tue Aug 29, 2006 7:40 pm
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 4988528

What is ATP?

adenosine triphosphate (ATP) A common form in which energy is stored in living systems; consists ... (with ribose sugar) with three phosphate groups. The energy coin of the cell. adenosine diphosphate (ADP) Lower energy form of ATP, having two (instead of the three in ATP) phosphhate ...

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by ShortLaxPlayer15
Fri Mar 24, 2006 6:36 pm
Forum: Cell Biology
Topic: What is ATP?
Replies: 8
Views: 4159

ATP and ADP+Pi

i'm having a little confusion here. If ATP is a adenosine triphosphate group isn't that the same as ADP+Pi since thats a adenosine diphosphate and a phosphate group? i keep reading that ADP+Pi is turned into ATP but i dont understand ...

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by Khan
Sun Mar 12, 2006 11:14 pm
Forum: Cell Biology
Topic: ATP and ADP+Pi
Replies: 2
Views: 15160
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