2012
DOI: 10.1074/jbc.m112.347153
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Functional Linkage of Adenine Nucleotide Binding Sites in Mammalian Muscle 6-Phosphofructokinase

Abstract: Background: Crystal structures of 6-phosphofructokinases revealed nucleotide binding sites with unknown functional relevance. Results: Function of two allosteric nucleotide binding sites was determined by mutagenesis and kinetic studies and revealed reciprocal linkage of both. Conclusion: Activity of mammalian Pfk is regulated by structurally linked new allosteric sites. Significance: Reciprocal linkage between allosteric binding sites evolved convergent in prokaryotes and eukaryotes.

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Cited by 26 publications
(28 citation statements)
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“…The decrease in nucleotide triphosphates in yap −/− mutants coincided with an increase in adenosine monophosphate (AMP), guanosine monophosphate (GMP), cytidine monophosphate (CMP), and uridine monophosphate (UMP) (Appendix Fig S5B). Surprisingly, we observed an increase in FBP levels in yap −/− mutant embryos; however, this may be due to allosteric activation of phosphofructokinase (PFK) activity by elevated AMP (Bruser et al , ). Collectively, the decrease in glycolytic intermediates and concomitant increase in nucleotide monophosphates could be a manifestation of energetic stress, caused by abnormal glucose metabolism.…”
Section: Resultsmentioning
confidence: 79%
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“…The decrease in nucleotide triphosphates in yap −/− mutants coincided with an increase in adenosine monophosphate (AMP), guanosine monophosphate (GMP), cytidine monophosphate (CMP), and uridine monophosphate (UMP) (Appendix Fig S5B). Surprisingly, we observed an increase in FBP levels in yap −/− mutant embryos; however, this may be due to allosteric activation of phosphofructokinase (PFK) activity by elevated AMP (Bruser et al , ). Collectively, the decrease in glycolytic intermediates and concomitant increase in nucleotide monophosphates could be a manifestation of energetic stress, caused by abnormal glucose metabolism.…”
Section: Resultsmentioning
confidence: 79%
“…ª 2018 The Authors The EMBO Journal 37: e100294 | 2018 embryos; however, this may be due to allosteric activation of phosphofructokinase (PFK) activity by elevated AMP (Bruser et al, 2012). Collectively, the decrease in glycolytic intermediates and concomitant increase in nucleotide monophosphates could be a manifestation of energetic stress, caused by abnormal glucose metabolism.…”
Section: Yap Regulates Glucose Metabolism and Nucleotide Biosynthesismentioning
confidence: 99%
“…PFK1 activity was determined using an auxiliary enzyme assay (Brüser et al, 2012) with kinetic analysis using 200-µl reactions containing 50 mM Tris-HCl, pH 7.4, 100 mM KCl, 10 mM MgCl 2 , 0.15 mM NADH, 0.675 U/ml aldolase, 5 U/ml triosephosphate isomerase, and 2 U/ml glycerol phosphate dehydrogenase. ATP and F6P were used as indicated.…”
Section: Pfk1 Activity Assaysmentioning
confidence: 99%
“…By contrast, PFK1 can be activated by metabolites which are elevated with energy deprivation. AMP (adenosine monophosphate) and ADP (adenosine diphosphate) activate PFK1 via a binding site that is dependent upon the amino acids Ser 377, Lys 678, Asn 341 (Bruser et al , 2012). …”
Section: Phosphofructokinase 1 (Pfk1) Allosteric Regulationmentioning
confidence: 99%