Glucose 6-phosphate

When liver glycogen is full… how is glucose metabolism inhibited?
By accumulation of which one?
Fructose-6-phosphate
Glucose-6-phosphate
Glucose-1-phosphate
Pyruvate
I thought glu-6-p just goes on glycolysis to pyruvate and AcoA and to fatty acid synthesis…
If you want to control a metabolic pathway the best sites to do it at at reactions that are irreversible and rate limiting. In the case of humans this mostly is done through inhibition of the enzyme phosphofructokinase 1, which is inhibited by high levels of ATP and citrate (the former implying there’s lots of energy about and the latter coming from the Kreb’s cycle, implying there’s lots of respiration going on), and low pH (this is important to make sure you don’t damage your muscles too badly by doing too much glycolysis with anaerobic respiration, making it too acidic). It is activated by AMP (which is used to make ATP).
Also, glucagon inhibits the enzyme (as glucagon is released during low glucose, when you don’t want to use it all up with glycolysis), by repressing its synthesis.
Pasto’s biology cells met resp details
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G6PD Deficiency (Glucose-6-phosphate Dehydrogenase Deficiency) What’s G6PD deficiencyGlucose-6-phosphate dehydrogenase deficiency is a genetic disorder that occurs most often in males. This condition mainly affects red blood cells, which carry oxygen from the lungs to tissues throughout the body. In affected individuals, a defect in an enzyme called glucose-6-phosphate dehydrogenase causes red blood cells to break down prematurely. This destruction of red blo… |
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Effect of chlorine dioxide, chlorite, and nitrite on mice with low and high levels of glucose-6-phosphate dehydrogenase (G6PD) in their erythrocytes … |
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Symposium on Glucose-6-Phosphate Dehudrogenase, the Red Cell, and Hemolysis. … |