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Author Topic: What happens to the phosphate from ATP in cells  (Read 10481 times)

Offline englishgent

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What happens to the phosphate from ATP in cells
« on: 27/11/2004 01:12:14 »
Just wondered if anyone can help me with this hope is not a little to basic for this forum. After ATP releases one of its phosphate atoms and becomes ADP what happens to the phosphate atom that was released ? Obviouslys ADP is turned back into ATP by utilising the phosphate atom from creatine phosphate but this still leaves us a spare phosphate atom floating about ?? what happend to this? Can anyone help me with this?


 

Offline chris

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Re: What happens to the phosphate from ATP in cells
« Reply #1 on: 28/11/2004 16:28:16 »
The cleaved phosphate group is known as pyrophosphate or 'inorganic phosphate', and there is a 'pool' of it within all cells which can be used for reactions. It is therefore recruited back into a variety of biosynthetic pathyways fairly promptly. e.g. formation of GTP, TTP,ATP, CTG, the ribonucleotides, protein phosphorylation etc etc.

Does that help ?

Chris

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Offline englishgent

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Re: What happens to the phosphate from ATP in cells
« Reply #2 on: 28/11/2004 16:58:29 »
Thats great man thanks very much you are the only person who has been able to give me a satisfactory answer :)
 

Offline Ylide

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Re: What happens to the phosphate from ATP in cells
« Reply #3 on: 12/12/2004 05:09:36 »
Pyrophosphate is actually a phosphoester linkage 2 inorganic phosphate groups, the hydrolysis of which results in 2 inorganic phosphates or "Pi" as biochemists like to write as shorthand.  But Chris pretty much nailed it, it's recycled into other biochemical pathways in the cell.  



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Re: What happens to the phosphate from ATP in cells
« Reply #3 on: 12/12/2004 05:09:36 »

 

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