Reading about the light emitting reaction of luciferin + ATP, catalysed by luciferase I am confused about the following.
On this webpage the partial formula is written as:
luciferin + ATP → luciferyl adenylate + PPi
which seems to me like a one way reaction.
Is it possible for this reaction to take place in reverse? And what about the link on books.google.nl showing a reversible reaction with light involved? What about that?
Thank you for clarifying.
EDIT 2014-02-25: This article: "Kinetics of inhibition of firefly luciferase by dehydroluciferyl-coenzyme A, dehydroluciferin and L-luciferin" by Luis Pinto da Silva etc (Link) shows the following reactions:
Where Luc is firefly luciferase, LH2 is luciferin, L-CoA is dehydroluciferyl-coenzyme A, L is dehydroluciferin, ATP is Adenosine triphosphate, AMP is adenosine-5`-monophosphate, PPi is inorganic pyrophosphate, O2 is oxygen, CO2 is carbondioxide.
Looking at the last equation, it seems it is possible to form ATP as a product, as it is on the right side of the arrow. Remarkable, I would say. still I do not see any luciferin (LH2) on the right side of any equation, so the answer to question of this topic remains
no thus far.