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Pyrrolyl-substituted allenylidene complexes by reaction of 10 with pyrroles.

Pyrrolysine , two additional genetically encoded amino acids.

PyrroUdine-type nicotincads the structural changes of tV-methylmyosmine based on pH are highlighted by the bracket

Pyrryldipyrrylmethene structure of prodigiosin confirmed by synthesis

Pyrumidal XY, molecule.

Pyruvate and glucose as precursors of the five-carbon chain of the thia-zole of thiamine in E. coli.

Pyruvate branch with diacetyl production and citrate metabolism. Underline indicates reactions that have to be modified to increase diacetyl production .

Pyruvate can be further transformed to lactate or ethanol under anaerobic conditions , or, under aerobic conditions, it can enter the TCA cycle see

Pyruvate carboxylase

Pyruvate carboxylase bypass reactions

Pyruvate carboxylase reaction. Pyruvate carboxylase adds a carboxyl group from bicarbonate to pyruvate to form oxaloacetate. Biotin is used to activate and transfer the CO2. The energy to form the covalent biotin-C02 complex is provided by the high-energy phosphate bond of ATP, which is cleaved in the reaction. The enzyme is activated by acetyl CoA.

Pyruvate Dehydrogenase

Pyruvate dehydrogenase complex catalyzes oxidation of the a-ketoacid pyruvate to acetyl CoA.

Pyruvate dehydrogenase multienzyme complex. The component of the pyruvate dehydrogenase multienzyme complex which undergoes reversible phosphorylation dephosphorylation is El, pyruvate decarboxylase. In this manner the activity of the entire complex is regulated.

Pyruvate derivation and acetyi CoA synthesis. Observe that pyruvate, and subsequently the acetyl CoA pathway, has chain roots in the primary metabolism. Pyruvate can also be synthetized by conversion reactions. The secondary acetyl CoA is constructed as a building block on the pyruvate and glycolysis.

Pyruvate Formation from Amino Acids. Pymvate is the point of entry for alanine, serine, cysteine, glycine, threonine, and tryptophan.

Pyruvate kinase

Pyruvate kinase domains 1, 2, and 3 as an example of a protein whose domains show no structural resemblance whatsoever.

Pyruvate metabolism in citrus fruit .

Pyruvate metabolism, gluconeogenesis and glycolysis. Key enzymes shown are

Pyruvate pathways

Pyruvate-dependent aldolases and the reactions they catalyze. P PO32.

Pyruvatetformate lyase

Pyruvic acid decarboxylation

Pyruvoyl Dependent Decarboxylase Mechanism



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