Results 141 to 150 of about 2,483 (155)

Industrial applicability of enzymatic and whole-cell processes for the utilization of C1 building blocks. [PDF]

Nat Commun
Barone GD, Somvilla I, Meier HPF, Ngo ACR, Bayer T, Parmeggiani F, Rehbein V, Hlina JA, Domínguez de María P, Bornscheuer UT, Tischler D, Schmidt S.   +11 more
europepmc   +1 more source

Mitochondrial metabolic rescue in post-COVID-19 syndrome: MR spectroscopy insights and precision nutritional therapeutics. [PDF]

Front Immunol
Chen LZ, Cai Q, Zheng PF.
europepmc   +1 more source

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Protein lysine 6-oxidase (lysyl oxidase) cofactor: Methoxatin (PQQ) or pyridoxal?

International Journal of Biochemistry, 1988
1. Treatment of chick embryos with two lathyrogens lowered lysyl oxidase and increased collagen extractability. 2. Subsequent treatment with pyridoxal restored both parameters towards normal, whereas PQQ treatment was less effective. 3. These results suggest the requirement of a pyridoxal derivative for the formation of the enzyme, acting either as ...
C I, Levene, M P, O'Shea, M J, Carrington   +2 more
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Synthesis of Imidazolo Analogues of the Oxidation−Reduction Cofactor Pyrroloquinoline Quinone (PQQ)

The Journal of Organic Chemistry, 2004
Parallel syntheses of 2-hydro-, 2-methyl-, and 2-methoxycarbonylimidazo-7,9-dimethoxycarbonyl analogues of the oxidation-reduction cofactor pyrroloquinoline quinone [4,5-dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid] have been developed. The properties of the imidazolo analogues in relation to the corresponding pyrrole analogues
David M D, Fouchard, L M V, Tillekeratne, Richard A, Hudson   +2 more
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First insights into the role of PQQ cofactor in the modulation of bacterial redox state and in the early interaction with peanut (Arachis hypogaea L.)

Applied Soil Ecology, 2020
Abstract The objective of this work was to study the role of pyrroloquinolinequinone (PQQ) of Serratia sp. S119 strain in the maintenance of the bacterial redox state and in the early interaction with peanut. Lipid peroxidation and antioxidant enzymatic activities were analyzed in Serratia sp. S119 and in its PQQ minus mutant Serratia sp.
Ludueña, Liliana Mercedes, Bianucci, Eliana Carolina, Anzuay, María Soledad, Angelini, Jorge Guillermo, Fabra, Adriana Isidora, Taurian, Tania   +5 more
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Substituted Quinoline Quinones as Surrogates for the PQQ Cofactor: An Electrochemical and Computational Study

Organic Letters, 2015
Pyrroloquinoline quinones (PQQ) are important cofactors that shuttle redox equivalents in diverse metalloproteins. Quinoline 7,8-quinones have been synthesized and characterized as surrogates for PQQ to elucidate redox energetics within metalloenzyme active sites.
Walter L, Dorfner, Patrick J, Carroll, Eric J, Schelter   +2 more
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PQQ or TOPA? A theoretical suggestion for the organic cofactor of amine oxidases

Journal of Molecular Structure: THEOCHEM, 1992
Abstract Bovine serum amine oxidase contains a quinoid cofactor which was first identified as PQQ (pyrroloquinoline quinone) and recently as TOPA, the oxidized form of 6-hydroxydopa. Theoretical ab initio and PPP calculations were performed on the two molecules. The comparison of the electronic spectrum of the enzyme and of its phenylhydrazine adduct
M. Bossa, I. Gelsomino, G.O. Morpurgo, L. Morpurgo, A. Talamo   +4 more
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First Experimental Structure of a 1:1 Metal Complex with a PQQ Cofactor Derivative outside Dehydrogenase Enzymes

Inorganic Chemistry, 1999
Qualitatively similar metal coordination as in PQQ-dependent bacterial dehydrogenases was observed for the PQQ triester in the model complex I, although the unusual five-coordinate copper(I) center...
Matthias Wanner, Torsten Sixt, Karl-Wilhelm Klinkhammer, Wolfgang Kaim   +3 more
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C-4 and C-5 adducts of cofactor PQQ (pyrroloquinolinequinone). Model studies directed toward the action of quinoprotein methanol dehydrogenase

Journal of the American Chemical Society, 1993
Methanol addition to the trimethyl ester of cofactor PQQ (PQQTME) was investigated in detail to obtain information on the action of quinoprotein methanol dehydrogenase. The hemiacetal-type adduct was easily isolated from a methanol solution of PQQTME.
Shinobu Itoh, Masaki Ogino, Yoshifumi Fukui, Hiroshi Murao, Mitsuo Komatsu, Yoshiki Ohshiro, Tsuyoshi Inoue, Yasushi Kai, Nobutami Kasai   +8 more
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Biochemistry: role of PQQ as a mammalian enzyme cofactor?

Nature, 2005
The announcement by Kasahara and Kato of a new redox-cofactor vitamin for mammals, pyrroloquinoline quinone (PQQ), was based on their claim that an enzyme, predicted to be involved in mouse lysine metabolism, is a PQQ-dependent dehydrogenase. However, this claim was dependent on a sequence analysis using databases that inappropriately label beta ...
Leigh M, Felton, Chris, Anthony
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