Results 281 to 290 of about 95,354 (345)
Bioelectrocatalysis of Pyruvate with PQQ-dependent Pyruvate Dehydrogenase [PDF]
ECS Transactions, 2010 Although pyruvate has not been considered as a fuel for an enzymatic biofuel cell, there are dehydrogenase enzyme capable of oxidizing pyruvate. This paper details the discovery of a pyrroloquinoline quinone-dependent pyruvate dehydrogenase (PQQ-PDH) in Gluconobacter species.
Becky L. Treu +2 more
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Direct Synthesis of β,γ-Unsaturated α-Keto Esters from Aldehydes and Pyruvates
Synlett : Accounts and Rapid Communications in Synthetic Organic Chemistry, 2019Herein, we describe two practical methods to synthesize β,γ-unsaturated α-keto esters directly from aldehydes and pyruvates promoted by BF3•Et2O in the presence of Ac2O or by Ti(OEt)4 under mild conditions.
J. Mansaray +3 more
semanticscholar +1 more source
Amperometric sensor for pyruvate with immobilized pyruvate oxidase
Analytica Chimica Acta, 1987Abstract Several procedures for immobilization of pyruvate oxidase by chemical bonding are reported. Attachment to nylon net was unsatisfactory in terms of yield and stability. Polyazetidine, a new commercially available prepolymer and a new nylon membrane with surface carboxyl groups provided good long-term stability, up to 30 days in the case of ...
M. Mascini, MAZZEI, Franco
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The International Journal of Biochemistry & Cell Biology, 1998
Pyruvate carboxylase [EC 6.4.1.1] is a member of the family of biotin-dependent carboxylases and is found widely among eukaryotic tissues and in many prokaryotic species. It catalyses the ATP-dependent carboxylation of pyruvate to form oxaloacetate which may be utilised in the synthesis of glucose, fat, some amino acids or their derivatives and several
Wallace, J. +2 more
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Pyruvate carboxylase [EC 6.4.1.1] is a member of the family of biotin-dependent carboxylases and is found widely among eukaryotic tissues and in many prokaryotic species. It catalyses the ATP-dependent carboxylation of pyruvate to form oxaloacetate which may be utilised in the synthesis of glucose, fat, some amino acids or their derivatives and several
Wallace, J. +2 more
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Chemical Communications, 2014
Concise cascade reactions of pyruvates with aldehydes that generate functionalized dihydropyran derivatives in one pot have been developed. The products, dihydropyrans, were further concisely transformed to various molecules.
P. V. Chouthaiwale, F. Tanaka
semanticscholar +1 more source
Concise cascade reactions of pyruvates with aldehydes that generate functionalized dihydropyran derivatives in one pot have been developed. The products, dihydropyrans, were further concisely transformed to various molecules.
P. V. Chouthaiwale, F. Tanaka
semanticscholar +1 more source
Journal of combinatorial chemistry, 2010
A library of fused pyridine-4-carboxylic acids (including pyrazolo[3,4-b]pyridines, isoxazolo[5,4-b]pyridines, furo[2,3-b]pyridines, thieno[2,3-b]pyridines, and pyrido[2,3-d]pyrimidines) was generated by Combes-type reaction of acyl pyruvates and ...
D. Volochnyuk +8 more
semanticscholar +1 more source
A library of fused pyridine-4-carboxylic acids (including pyrazolo[3,4-b]pyridines, isoxazolo[5,4-b]pyridines, furo[2,3-b]pyridines, thieno[2,3-b]pyridines, and pyrido[2,3-d]pyrimidines) was generated by Combes-type reaction of acyl pyruvates and ...
D. Volochnyuk +8 more
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Analytica Chimica Acta, 1980
Abstract Pyruvate oxidase (E.C. 1.2.3.3.) is immobilized by adsorption on a porous acetylcellulose membrane, and combined with an oxygen electrode to provide a sensor for pyruvate (0.1–0.8 mM). The response time is 2 min. Glutamate pyruvate transaminase (0.5–180 × 10 -3 I.U. ml -1 ) is determined by its effect on pyruvate production by the alanine—α-
Kunio Matsumoto +4 more
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Abstract Pyruvate oxidase (E.C. 1.2.3.3.) is immobilized by adsorption on a porous acetylcellulose membrane, and combined with an oxygen electrode to provide a sensor for pyruvate (0.1–0.8 mM). The response time is 2 min. Glutamate pyruvate transaminase (0.5–180 × 10 -3 I.U. ml -1 ) is determined by its effect on pyruvate production by the alanine—α-
Kunio Matsumoto +4 more
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Pyruvate carboxylase deficiency
Journal of Inherited Metabolic Disease, 1984AbstractThe causes of congenital lactic acidaemia are outlined. Isolated pyruvate carboxylase deficiency is reviewed in detail with a report of a recent case and a discussion of the biochemical consequences. Other causes of defective pyruvate carboxylation are described, particularly the combined carboxylase defects.
Janet-H. Stirk +4 more
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Journal of Organic Chemistry
Reactions of pyruvates as nucleophiles under catalytic conditions are difficult to control without the use of enzymes as catalysts. Here, enantioselective aldol reactions of pyruvates with chlorinated and fluorinated aldehydes and ketones under ...
Santanu Mondal, F. Tanaka
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Reactions of pyruvates as nucleophiles under catalytic conditions are difficult to control without the use of enzymes as catalysts. Here, enantioselective aldol reactions of pyruvates with chlorinated and fluorinated aldehydes and ketones under ...
Santanu Mondal, F. Tanaka
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Pyruvate carboxylase: Affinity labelling of the pyruvate binding site
Biochemical and Biophysical Research Communications, 1975Abstract The active-site-directed reagent, bromopyruvate has been used to covalently label the pyruvate binding site of pyruvate carboxylase (E.C.6.4.1.1.) isolated from sheep liver. Oxalo-acetate proved to be the most effective reaction component in protecting the enzyme against inactivation; pyruvate was less effective although its efficiency was ...
John C. Wallace +2 more
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