Why does it make sense that AMP is a positive allosteric regulator of PFK-1 enzyme activity, whereas citrate is a negative allosteric regulator of PFK-1, ie., what do these metabolites signal in the cell when their levels are high?

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter26: Synthesis And Degradation Of Nucleotides
Section: Chapter Questions
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BIOC 384

Regulation of the Glycolytic Pathway

Q9.3:  Why does it make sense that AMP is a positive allosteric regulator of PFK-1 enzyme activity, whereas citrate is a negative allosteric regulator of PFK-1, ie., what do these metabolites signal in the cell when their levels are high?

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