Pyrroloquinoline quinone (PQQ) is the organic cofactor in soybean lipoxygenase-1
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چکیده
منابع مشابه
The pyrroloquinoline quinone (PQQ)-containing quinoprotein dehydrogenases.
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Galactose oxidase from Dactylium dendroides was shown to contain one molecule of covalently bound pyrroloquinoline quinone (PQQ)/enzyme molecule. From the spectroscopic characteristics reported for the enzyme forms, a mechanistic role for PQQ could be deduced. In analogy with other quinoproteins, the initial formation of a PQQ-substrate adduct is proposed. Following internal hydrogen transfer, ...
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Pyrroloquinoline quinone (4, 5-dihydro(4), 5-dioxo(1) H-pyrroloquinoline-2,7, 9 tricarboxylic acid) being a three ortho cyclic quinone substitutes the role of a redox-cofactor for various bacterial dehydrogenases such as methanol, ethanol and glucose dehydrogenases [1-6] also termed as methotaxin [7]. PQQ structure prediction shows that it has been originated from tyrosine and Glutamic-acid [8]...
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A subchronic oral toxicity study on pyrroloquinoline quinone (PQQ) disodium salt was performed in rats. Sprague-Dawley rats were randomly divided into four groups (10 rats/sex/group) and administered with PQQ disodium salt at doses of 0 (control), 100, 200 and 400 mg/kg bw/day by gavage for 13 weeks. Daily clinical observations and weekly measurement of body weights and food consumption were co...
متن کاملOne-electron Reduction of Pyrroloquinoline Quinone (pqq), in Aqueous Solutions: a Pulse Radiolysis Study
One electron reduction of Pyrroloquinoline quinone (PQQ) was studied using pulse radiolysis technique. Reactions of hydrated electron, H atom, radical and superoxide radicals produced very similar transient species. The radicals did not show decay in few milliseconds. The one-electron reduction potential of PQQ was determined at pH 7 using both methyl viologen and benzyl viologen couples and wa...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1988
ISSN: 0014-5793
DOI: 10.1016/0014-5793(88)81261-4