Results 221 to 230 of about 114,163 (257)
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Tyrphostin 47 nonenzymatically decarboxylates [1-14C]-pyruvate.
Annals of clinical and laboratory science, 1995Tyrphostins inhibit tyrosine kinases and have little effect on the activity of serine/threonine kinases. Pyruvate dehydrogenase kinase inactivates pyruvate dehydrogenase by phosphorylating serine residues within the multienzyme complex. This serine/theronine kinase represents a new family of protein kinases, and one (tyrphostin 47) of two tyrphostins ...
F L, Kiechle +2 more
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Chemischer Informationsdienst, 1978 Frank Jordan, Donald J. Kuo, E. U. Monse
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Carbon isotope effect on the enzymatic decarboxylation of pyruvic acid
Biochemical and Biophysical Research Communications, 1976Abstract The decarboxylation of pyruvic acid by the thiamine pyrophosphate dependent pyruvate decarboxylase from brewer's yeast is accompanied by a carboxyl carbon isotope effect k 12 k 13 = 1.0083±0.0003 at 25°, pH 6.8. The small size of the isotope effect indicates that decarboxylation is not rate-determining in the overall ...
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Stereochemistry of the decarboxylation of glyoxylic acid by yeast pyruvate decarboxylase
Journal of the Chemical Society, Perkin Transactions 1, 2000Tritiated glyoxylic acid was incubated with pyruvate decarboxylase. The hydroxymethylthiamine diphosphate formed was ozonolysed to give tritiated glycolic acid, the absolute configuration of which was investigated by analysis using glycolate oxidase. The tritiated glycolic acid proved to be racemic.
Hiran Vegad +3 more
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Potentiometric determination of L-glutamic and pyruvic acids via enzymatic decarboxylation
Bioelectrochemistry and Bioenergetics, 1976Abstract A potentiometric method, for the determination of L -glutamic acid via enzymatic decarboxylation, was reported previously. In this method, a CO 2 -electrode is used for the measurement of carbon dioxide released from the decarboxylation of glutamic acid.
Shang J. Yao +3 more
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[Relationship of intramolecular carbon isotopes in pyruvate decarboxylation].
Biofizika, 1983Relationships were obtained which made possible to calculate isotope content of carbon atoms in the products and reaction compound in the course of piruvate decarboxilation. Isotope composition was determined from kinetic isotope effect accompanying the destruction of carbon bonds. Some applications of the expressions obtained are presented.
A A, Ivlev, D A, Kniazev, A G, Kaloshin
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Biotechnology Progress, 2002
Abstract Pyruvate conversion to acetyl‐CoA by the pyruvate dehydrogenase (PDH) multienzyme complex is known as a key node in affecting the metabolic fluxes of animal cell culture. However, its possible role in causing possible nonlinear dynamic behavior such as oscillations and multiplicity of animal cells has ...
Zeng, An-Ping +2 more
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Abstract Pyruvate conversion to acetyl‐CoA by the pyruvate dehydrogenase (PDH) multienzyme complex is known as a key node in affecting the metabolic fluxes of animal cell culture. However, its possible role in causing possible nonlinear dynamic behavior such as oscillations and multiplicity of animal cells has ...
Zeng, An-Ping +2 more
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A DFT study of the structures of pyruvic acid isomers and their decarboxylation
Organic & Biomolecular Chemistry, 2006Pyruvic acid and its isomers, including the enol tautomers and enantiomeric lactone structures, have been investigated at the B3LYP/6-311 + + G(3df,3pd) level, and it is found that a keto form with trans C(methyl)C(keto)C(acid)O(hydroxyl) and cis C(keto)C(acid)OH, and with one methyl hydrogen in a synperiplanar position with respect to the keto oxygen,
Rita, Kakkar +2 more
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Journal of Computational Chemistry, 1993
AbstractTwo conformers of protonated pyruvate, CH3C+(OH)COO, with the OH group either trans or cis to the methyl group and the carboxylate group in the CCC plane have been studied using the ab initio SCF/3‐21G method, as well as by some semiempirical AM1 calculations.
Kathryn E. Norris +2 more
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AbstractTwo conformers of protonated pyruvate, CH3C+(OH)COO, with the OH group either trans or cis to the methyl group and the carboxylate group in the CCC plane have been studied using the ab initio SCF/3‐21G method, as well as by some semiempirical AM1 calculations.
Kathryn E. Norris +2 more
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