The Claim
Severe dehydration in African clawed frogs (Xenopus laevis) is associated with a 25% reduction in the phosphorylation state of liver pyruvate kinase, and experimental dephosphorylation of the enzyme from control frogs replicates the kinetic profile observed in dehydrated frogs, indicating that dephosphorylation is a key regulatory mechanism for maintaining glycolytic flux during metabolic depression.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In African clawed frogs, severe dehydration reduces the phosphorylation of liver pyruvate kinase by 25%, and artificially removing phosphate groups from this enzyme in healthy frogs produces the same metabolic changes seen in dehydrated frogs, demonstrating that dephosphorylation directly regulates glycolytic activity during metabolic depression.
See the scientific wording
Severe dehydration in African clawed frogs (Xenopus laevis) is associated with a 25% reduction in the phosphorylation state of liver pyruvate kinase, and experimental dephosphorylation of enzyme from control frogs replicates the kinetic profile seen in dehydrated frogs, suggesting dephosphorylation is a key regulatory mechanism for maintaining glycolytic flux during metabolic depression.
When the frog loses a lot of water, its body slows down energy use and turns off most protein production. To keep making energy without oxygen, it removes a chemical tag from the pyruvate kinase enzyme, making it work better even when fuel is low. At the same time, it makes more copies of the gene for this enzyme so there is enough of it available when needed. Together, these changes keep energy production going during extreme dryness.
What the research says
1 studyWhen these frogs get very dry, their liver enzyme that helps make energy becomes more active because a chemical tag (phosphate) is removed. Scientists proved this by removing the tag from healthy frogs' enzymes—and they acted just like the dehydrated ones.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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