Phosphofructokinase-1 (PFK-1) is a crucial enzyme in glycolysis and acts as a key regulator of glucose breakdown for energy. PFK-1 is strongly controlled by several factors, including substrate and product levels, as well as allosteric regulators such as ATP, ADP, and citrate. However, one molecule that influences PFK-1 regulation in glycolysis is missing from this list. Which one?

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PFK-1 is regulated by glycine

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PFK-1 catalyzes the phosphorylation of citrate in the citric acid cycle, not glycolysis

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PFK-1 is regulated by the catalysis of a third phosphorylation of fructose during glycolysis

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PFK-1 is regulated by fructose-2,6-bisphosphate

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PFK-1 is regulated by the proteasome

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Phosphofructokinase-1 (PFK-1) is a crucial enzyme in glycolysis and acts as a ke...

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