11:115:301 Lecture Notes - Lecture 12: Rossmann Fold, Acetaldehyde, Pyruvic Acid
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22 Sep 2019
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3 irreversible reactions all kinase reactions. Nadh generated by the oxidation of g3p consumed in reduction of acetaldehyde to ethanol. Get rid of reduced nadh reduce pyruvate to lactate. If it stays as nadh poisons the cell. Pyruvate metabolized to co2 and water through citric acid cycle + etc. The regeneration of nad+ in the reduction of pyruvate to lactate or ethanol sustains the process of glycolysis in anaerobic conditions. The reduction of acetaldehyde to ethanol by nadh catalyzed by alcohol. Catalyzes the reduction of pyruvate by nadh to form lactate. Galactose + fructose can be funneled into the glycolytic pathway. No catabolic pathways for metabolizing fructose must convert fructose into metabolite of glucose. Main site of fructose metabolism = liver. Fructose 1-phosphate glyceraldehyde + dihydroxyacetone phosphate. Must be converted to metabolites of glucose. Galactose 1-phosphate acquires uridyl group from uridine diphosphate glucose udp-galactose + glucose 1-phosphate. Gal 1-p enters and glu 1-p leaves.
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