Results 11 to 20 of about 16,837 (135)

Polyphenol Oxidase Products Are Priming Agents for LPMO Peroxygenase Activity

ChemSusChem, Volume 16, Issue 18, September 22, 2023., 2023
Priming versus fueling. It is demonstrated here that the catalytic products of a polyphenol oxidase acting on guaiacol can prime the peroxygenase activity of lytic polysaccharide monooxygenase (LPMO) towards cellulose in H2O2‐driven reactions but do not provide sufficient reducing power to fuel LPMO activity under O2‐driven reactions.
Caio de Oliveira Gorgulho Silva, Marlene Vuillemin, Mirjam A. Kabel, Willem J. H. van Berkel, Anne S. Meyer, Jane W. Agger   +5 more
wiley   +1 more source

Dinuclear Copper(I) Complexes Supported by Bis‐Tridentate N‐Donor‐Ligands: Turning‐On Tyrosinase Activity

European Journal of Inorganic Chemistry, Volume 2022, Issue 35, December 16, 2022., 2022
Dinuclear copper(I) complexes supported by bis‐tridentate N‐donor ligands with two imine functions mediate the conversion of a monophenol to its corresponding o‐quinone, in contrast to analogous complexes supported by ligands with amine functions. Abstract Four structurally related bis‐tridentate N‐donor ligands with either two secondary amine or two ...
Rebecca Schneider, Tobias A. Engesser, Jessica N. Hamann, Christian Näther, Felix Tuczek   +4 more
wiley   +1 more source

Kupfer‐katalysierte Monooxygenierung von Phenolen: Evidenz für einen mononuklearen Reaktionsmechanismus

Angewandte Chemie, Volume 134, Issue 25, June 20, 2022., 2022
Homoleptische CuI‐Komplexe mit verschiedenen Liganden (CH3CN, oDFB, NEt3) und Gegenionen mit unterschiedlicher Koordinationsfähigkeit (BF4−, OTf−, PF6−, Al(OC(CF3)3)4−) katalysieren die Umwandlung von Monophenolen in o‐Chinone. Detaillierte mechanistische Untersuchungen zeigen, dass diese Reaktion, im Gegensatz zum dinuklearen Mechanismus des Enzyms ...
Rebecca Schneider, Tobias A. Engesser, Christian Näther, Ingo Krossing, Felix Tuczek   +4 more
wiley   +1 more source

Copper‐Catalyzed Monooxygenation of Phenols: Evidence for a Mononuclear Reaction Mechanism

Angewandte Chemie International Edition, Volume 61, Issue 25, June 20, 2022., 2022
Homoleptic CuI complexes with different ligands (CH3CN, oDFB, NEt3) and counterions of varying coordination ability (BF4−, OTf−, PF6−, Al(OC(CF3)3)4−) catalyze the conversion of monophenols to o‐quinones. Detailed mechanistic research shows that this reaction follows a mononuclear pathway, in contrast to the dinuclear mechanism of the enzyme tyrosinase.
Rebecca Schneider, Tobias A. Engesser, Christian Näther, Ingo Krossing, Felix Tuczek   +4 more
wiley   +1 more source

Bacterial pigments: A colorful palette reservoir for biotechnological applications

Biotechnology and Applied Biochemistry, Volume 69, Issue 3, Page 981-1001, June 2022., 2022
Abstract Synthetic derivatives are currently used instead of pigments in many applicative fields, from food to feed, from pharmaceutical to diagnostic, from agronomy to industry. Progress in organic chemistry allowed to obtain rather cheap compounds covering the whole color spectrum. However, several concerns arise from this chemical approach, as it is
Viviana Teresa Orlandi, Eleonora Martegani, Cristina Giaroni, Andreina Baj, Fabrizio Bolognese   +4 more
wiley   +1 more source

Quality parameters of wine grape varieties under the influence of different vine spacing and training systems

Harčova Nauka ì Tehnologìâ, 2017
Physicochemical and biochemical indices, which characterize quality of white wine grape varieties Zagrey and Aromatnyi of selection of NNC «IV&W named after V. Ye. Tairov», (harvest of 2016) were determined.
O. Tkachenko, A. Pashkovskiy
doaj   +1 more source

An organ‐specific transcriptomic atlas of the medicinal plant Bletilla striata: Protein‐coding genes, microRNAs, and regulatory networks

The Plant Genome, Volume 15, Issue 2, June 2022., 2022
Abstract As one of the important species belonging to the Bletilla genus of Orchidaceae, Bletilla striata (Thunb.) Rchb. f., possesses both ornamental and medicinal values. Its dried tubers are used as a traditional Chinese medicine, and several secondary metabolites have been indicated to be the active ingredients.
Xiaoxia Ma, Kehua Tang, Zhonghai Tang, Aiwen Dong, Hang Xiao, Yijun Meng, Pu Wang   +6 more
wiley   +1 more source

Bacterial flavin-containing monooxygenase is trimethylamine monooxygenase [PDF]

, 2011
Flavin-containing monooxygenases (FMOs) are one of the most important monooxygenase systems in Eukaryotes and have many important physiological functions. FMOs have also been found in bacteria; however, their physiological function is not known.
Crombie, Andrew, Chen, Y.; id_orcid, Scrivens, James H., Nisha A. Patel, Murrell, J. Colin, Scrivens, J.H., Patel, N.A., J. Colin Murrell, Scrivens, James, Murrell, J. C. (J. Colin), Chen, Yin, James H. Scrivens, Crombie, A., Yin Chen, Patel, Nisha A., Andrew Crombie   +15 more
core   +1 more source

Engineered Bacterial Flavin‐Dependent Monooxygenases for the Regiospecific Hydroxylation of Polycyclic Phenols

ChemBioChem, Volume 23, Issue 6, March 18, 2022., 2022
The ability to perform regiospecific hydroxylations of sterically challenging monophenols was engineered into a flavin‐dependent monooxygenase. Its variants are valuable tools for production of the corresponding catechols for in vitro or live whole‐cell conversions.
Susann Herrmann, Martin Dippe, Pascal Pecher, Evelyn Funke, Markus Pietzsch, Ludger A. Wessjohann   +5 more
wiley   +1 more source

StyA1 and StyA2B from Rhodococcus opacus 1CP: a Multifunctional Styrene Monooxygenase System [PDF]

, 2010
Two-component flavoprotein monooxygenases are emerging biocatalysts that generally consist of a monooxygenase and a reductase component. Here we show that Rhodococcus opacus 1CP encodes a multifunctional enantioselective flavoprotein monooxygenase system
Groning, J.A.D., Michael Schlömann, Kaschabek, S.R., Dirk Tischler, Stefan R. Kaschabek, Tischler, D., Berkel, W.J.H., van, Willem J. H. van Berkel, René Kermer, Janosch A. D. Gröning, Schlomann, M., Kermer, R.   +11 more
core   +1 more source