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Phosphoenolpyruvate

phosphoenolpyruvate

(Science: biochemistry) An important metabolic intermediate. The enol (less stable) form of pyruvic acid is trapped as its phosphate ester, giving the molecule a high phosphate transfer potential. Formed from 2 phosphoglycerate by the action of enolase.


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Na,K-ATPase as a pump. Request for Reference(s)

... (the sodium and potassium concentrations in it will be the same as in the washing solutions). Now add ATP (and an ATP generating system, e.g. phosphoenolpyruvate plus pyruvate kinase) to the interior of the axon ghost and securely tie the ends of the axon so that its contents are not mixed ...

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by Vladimir Matveev
Wed Jan 05, 2011 9:08 am
 
Forum: Cell Biology
Topic: Na,K-ATPase as a pump. Request for Reference(s)
Replies: 8
Views: 6109

C4 and photorespiration

... between the Rubisco enzyme and molecular oxygen. This is done by an accesory fixation pathway: the enzyme PEP carboxylase first fixes CO2 onto Phosphoenolpyruvate(PEP) to give phosphate and oxaloacetate which is then reduced to malate in the mesophyll cell. then the malate goes to the bundle ...

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by MrMistery
Wed Sep 24, 2008 2:25 am
 
Forum: Botany Discussion
Topic: C4 and photorespiration
Replies: 1
Views: 3826

Biology H Help!!!!

... molecules that produce ATP in glycolsis is the conversion of 1,3 Bisphosphoglycerate to 3, Phosphoglycerate yeilds an ATP and the conversion of Phosphoenolpyruvate to pyruvate yields an ATP these reaction are times by two but since there was 2 ATP invested to start the process you only yield ...

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by canan5000
Tue Dec 04, 2007 6:39 am
 
Forum: Molecular Biology
Topic: Biology H Help!!!!
Replies: 5
Views: 3965

Which is the correct option

Another example that I could think of is a PTS (phosphotransferase system) which is also utilized mainly in Gram+ bacteria. In this system, it uses phosphoenolpyruvate (PEP) instead of ATP to phosphorylate glucose and get the glucose in through the specific transmembrane gate protein. But it's known ...

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by victor
Thu Nov 22, 2007 12:18 pm
 
Forum: Cell Biology
Topic: Which is the correct option
Replies: 8
Views: 3128

Where are the water goes during anaerobic respiration?

So, what is the process involves in the conversion of glycerate-3-phosphate to phosphoenolpyruvate?What enzymes catalysed the reaction? No matter arobic or anarobic........ that has to take place...Glycolysis to for Pyruvate.

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by sachin
Sat Jan 13, 2007 3:40 pm
 
Forum: Cell Biology
Topic: Where are the water goes during anaerobic respiration?
Replies: 4
Views: 2224
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