Guest guest Posted August 26, 2006 Report Posted August 26, 2006 It takes into account the binding of adenylates to Mg2+ and the importance of the free and Mg-bound states for the translocase and adenylate kinase equilibria (in healthy plants). I hadnt seen that level of detail before in my light studies on this subject, tho maybe you have. http://jxb.oxfordjournals.org/cgi/reprint/57/10/2133.pdf I'm interested in col 2 of page 2135, where they revise the concept of adenylate energy charge -- by, again, distinguishing free and Mg-bound states. Energy charge (the adenylate mol fraction of ATP + half the adenylate mole fraction of ADP) is an index of energization that's canonically supposed to regulate lots of path-committment enzymes. This could be an important part of my bacteria's behaviour if they face energy restriction due to, say, NO inhibition of O2 respiration. 1247543 claims that energy charge very sensitively regulates translation initiation (in a eucaryote) but I only have the abstract. There's also an AMP-dependent kinase, in eucaryotes only, which goes around phosphoylating things when [AMP] rises. Quote
Guest guest Posted August 29, 2006 Report Posted August 29, 2006 Hi, . Thanks. I'll take a look at it when I can. Rich > > It takes into account the binding of adenylates to Mg2+ and the > importance of the free and Mg-bound states for the translocase and > adenylate kinase equilibria (in healthy plants). I hadnt seen that > level of detail before in my light studies on this subject, tho maybe > you have. > > http://jxb.oxfordjournals.org/cgi/reprint/57/10/2133.pdf > > I'm interested in col 2 of page 2135, where they revise the concept of > adenylate energy charge -- by, again, distinguishing free and Mg- bound > states. Energy charge (the adenylate mol fraction of ATP + half the > adenylate mole fraction of ADP) is an index of energization that's > canonically supposed to regulate lots of path-committment enzymes. This > could be an important part of my bacteria's behaviour if they face > energy restriction due to, say, NO inhibition of O2 respiration. > 1247543 claims that energy charge very sensitively regulates > translation initiation (in a eucaryote) but I only have the abstract. > There's also an AMP-dependent kinase, in eucaryotes only, which goes > around phosphoylating things when [AMP] rises. > Quote
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