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13h
comment How Does NADPH Reduce 1,3-BPG?
For the mechanism of the glyceraldehyde-3-phosphate dehydrogenase reaction see Fersht, Enzyme Structure and Mechanism‌​, pp 469-472. Pages 472-473 may also be of interest.
14h
comment How Does NADPH Reduce 1,3-BPG?
@stygian. It might help if you specified exactly the reaction you are interested in. In both glycolysis and the Calvin cycle is it 3-phosphoglycerate that is produced/consumed in the glyceraldehyde-3-phosphate dehydrogenase reaction. 1,3-diphosphoglycerate is produced/consumed in a separate reaction.
Sep
30
awarded  Explainer
Sep
12
comment Why do I only breathe out of one nostril?
Does Viagra have any effect?
Aug
21
comment What are the minimal chemical requirements for a food which we all can eat?
Well ... You may have some trouble synthesizing Vitamin B12 by running electricity through a jar of chemicals ... but (as it is a thought experiment) perhaps the famous Miller-Urey experiment is where we should start.
Aug
21
comment Can humans survive without consuming life?
@N0ir As John Lennon put it "Imagine there's no heaven..."
Aug
21
comment Can humans survive without consuming life?
@alex But what about glycogen? Doesn't the breakdown and synthesis of glycogen not require enzymes? And doesn't glycoysis, the TCA cycle and the Respiratory Redox Chain make extensive use of enzymes in turning glucose into "energy"? IMO Chris makes a very good point (to which we may add that no net synthesis of glucose can occur from fatty acids).
Jul
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awarded  Yearling
Jun
11
awarded  Enlightened
Jun
11
awarded  Good Answer
Mar
8
awarded  Enlightened
Mar
8
awarded  Nice Answer
Feb
7
awarded  Civic Duty
Dec
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awarded  Custodian
Dec
20
reviewed Approve Standard Classification of Disease
Nov
4
comment Why is ATP the preferred choice for energy carriers?
It might be worth while having a look at this great article by F. H. Westheimer Why Nature Choose Phosphates, published in Science in 1987
Nov
1
comment How, on a physical level, does ATP confer energy?
ADP also contains a 'high energy' bond where ΔG˚ for hydrolysis is about −30 kJ/mol. I presume you are not implying otherwise. That is, the 'beta-phosphate' may also be thought of as being 'very unstable'. As I understand things, the (free) energy 'currency' of ATP arises from the fact that the ATP = ADP +Pi reaction is maintained far from equilibrium in the cell.
Nov
1
revised Are all body atoms really recycled several times during a life?
Fixed clanger no 2
Nov
1
comment What is Luc Montagnier's research on electromagnetic signals from DNA about?
It seems to me that there is no evidence for fraud here, just as there was is no evidence of fraud in Pauling's famous claim that high doses of Vitamin C cures the common cold. We are surely dealing with yet another case of an imminent scientist making an extraordinary and implausible claim that is not supported by the evidence, and where the experimental results are open to many other much more plausible explanations.
Nov
1
revised Are all body atoms really recycled several times during a life?
added 1724 characters in body