Results 171 to 180 of about 15,601 (218)
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Analytical Chemistry, 2021
Catalytic current of pyrroloquinoline quinone (PQQ)-glucose dehydrogenase (PQQ-GDH) immobilized over electropolymerized methylene green (MG) is increased only five times after the addition of the freely diffusing mediator. This value, being an efficiency
M. Komkova +4 more
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Catalytic current of pyrroloquinoline quinone (PQQ)-glucose dehydrogenase (PQQ-GDH) immobilized over electropolymerized methylene green (MG) is increased only five times after the addition of the freely diffusing mediator. This value, being an efficiency
M. Komkova +4 more
semanticscholar +1 more source
Biosensors and Bioelectronics, 2004
The performance of pyrroloquinoline quinone (PQQ) dependent alcohol dehydrogenase (ADH) and two types of PQQ-glucose dehydrogenases in solution and when immobilized on the carbon paste electrodes modified with ferrocene derivatives is investigated. The immobilization of ADH consisting of PQQ and four hemes improves its stability up to 10 times.
Valdas, Laurinavicius +3 more
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The performance of pyrroloquinoline quinone (PQQ) dependent alcohol dehydrogenase (ADH) and two types of PQQ-glucose dehydrogenases in solution and when immobilized on the carbon paste electrodes modified with ferrocene derivatives is investigated. The immobilization of ADH consisting of PQQ and four hemes improves its stability up to 10 times.
Valdas, Laurinavicius +3 more
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ChemInform Abstract: Formation of Derivatives of PQQ and PQQ‐Triester for the Detection of PQQ.
ChemInform, 1994AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
P. MARTIN, T. WINKLER
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In Analysis, 2021
α-Synuclein (α-syn) is a hallmark protein of Parkinson's disease (PD). The aggregation process of α-syn has been heavily associated with the pathogenesis of PD. With the exponentially growing number of potential therapeutic compounds that can inhibit the
Shaopei Li +3 more
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α-Synuclein (α-syn) is a hallmark protein of Parkinson's disease (PD). The aggregation process of α-syn has been heavily associated with the pathogenesis of PD. With the exponentially growing number of potential therapeutic compounds that can inhibit the
Shaopei Li +3 more
semanticscholar +1 more source
Journal of Bioscience and Bioengineering, 1999
About twenty years ago, the cofactor pyrroloquinoline quinone, PQQ, was discovered. Here the author gives his personal view on the reasons why this cofactor was so lately discovered and how the steps in its identification were made. The discovery not only led to subsequent studies on the physiological significance of PQQ but also initiated ...
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About twenty years ago, the cofactor pyrroloquinoline quinone, PQQ, was discovered. Here the author gives his personal view on the reasons why this cofactor was so lately discovered and how the steps in its identification were made. The discovery not only led to subsequent studies on the physiological significance of PQQ but also initiated ...
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The Biochemistry, Physiology and Genetics of PQQ and PQQ-containing Enzymes
1998Pyrrolo-quinoline quinone (PQQ) is the non-covalently bound prosthetic group of many quinoproteins catalysing reactions in the periplasm of Gram-negative bacteria. Most of these involve the oxidation of alcohols or aldose sugars. PQQ is formed by fusion of glutamate and tyrosine, but details of the biosynthetic pathway are not known; a polypeptide ...
P M, Goodwin, C, Anthony
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Methoxatin (PQQ) in guinea-pig neutrophils
Free Radical Biology and Medicine, 1994PQQ, also called methoxatin, has been isolated from guinea-pig neutrophils. The organic cations diphenyleneiodonium (DPI) and diphenyliodonium (BPI) and the aromatic o-diamine 4,5-dimethylphenylenediamine (DIMPDA) sequester synthetic PQQ and inhibit its redox-cycling activity in a model system.
A, Bishop +3 more
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Life Sciences, 1993
The effects of pyrroloquinoline quinone (PQQ) and PQQ-oxazole (PQQ-glycine adduct) on DNA synthesis were examined using cultured human fibroblasts. Confluent fibroblasts were cultured in serum-free Dulbecco's modified Eagle's media, and various concentrations of PQQ and PQQ-oxazole were added to the media.
Y, Naito +3 more
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The effects of pyrroloquinoline quinone (PQQ) and PQQ-oxazole (PQQ-glycine adduct) on DNA synthesis were examined using cultured human fibroblasts. Confluent fibroblasts were cultured in serum-free Dulbecco's modified Eagle's media, and various concentrations of PQQ and PQQ-oxazole were added to the media.
Y, Naito +3 more
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Engineered PQQ-Dependent Alcohol Dehydrogenase for the Oxidation of 5-(Hydroxymethyl)furoic Acid
, 2020Furan-2,5-dicarboxylic acid (FDCA) is a bio-based platform chemical with the potential to replace terephthalic acid in the production of polymers.
M. Wehrmann +8 more
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2020
Pyrroloquinoline quinone (PQQ) biosynthesis is complicated by the fact that it is synthesized in the cytoplasm and must then find its way to the periplasm where the active enzyme/cofactor complex is assembled. Clearly the a-nitrogen of tyrosine was not randomized in PQQ, demonstrating that tyrosine, and not its requisite a-keto acid, is the precursor ...
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Pyrroloquinoline quinone (PQQ) biosynthesis is complicated by the fact that it is synthesized in the cytoplasm and must then find its way to the periplasm where the active enzyme/cofactor complex is assembled. Clearly the a-nitrogen of tyrosine was not randomized in PQQ, demonstrating that tyrosine, and not its requisite a-keto acid, is the precursor ...
openaire +1 more source