Results 21 to 30 of about 194,006 (386)

Boron-mediated directed aromatic C–H hydroxylation

open access: yesNature Communications, 2020
Transition metal-catalysed C–H hydroxylation is one of the most notable advances in synthetic chemistry during the past few decades and it has been widely employed in the preparation of alcohols and phenols. The site-selective hydroxylation of aromatic C–
Jiahang Lv   +4 more
semanticscholar   +1 more source

Auxin-induced SCFTIR1-Aux/IAA interaction involves stable modification of the SCFTIR1 complex [PDF]

open access: yes, 2004
The plant hormone auxin can regulate gene expression by destabilizing members of the Aux/IAA family of transcriptional repressors. Auxin-induced Aux/IAA degradation requires the protein-ubiquitin ligase SCFTIR1, with auxin acting to enhance the ...
Abel   +18 more
core   +2 more sources

Conversion of Unsaturated Short- to Medium-Chain Fatty Acids by Unspecific Peroxygenases (UPOs)

open access: yesApplied Microbiology, 2023
Eighteen short- to medium-chain monounsaturated fatty acids were screened for hydroxylation and epoxidation using eleven different peroxygenase preparations.
Alexander Karich   +5 more
doaj   +1 more source

Protein Hydroxylation by Hypoxia-Inducible Factor (HIF) Hydroxylases: Unique or Ubiquitous?

open access: yesCells, 2019
All metazoans that utilize molecular oxygen (O2) for metabolic purposes have the capacity to adapt to hypoxia, the condition that arises when O2 demand exceeds supply. This is mediated through activation of the hypoxia-inducible factor (HIF) pathway.
Moritz J. Strowitzki   +2 more
semanticscholar   +1 more source

In Vivo Evolution of Butane Oxidation by Terminal Alkane Hydroxylases AlkB and CYP153A6 [PDF]

open access: yes, 2009
Enzymes of the AlkB and CYP153 families catalyze the first step in the catabolism of medium-chain-length alkanes, selective oxidation of the alkane to the 1-alkanol, and enable their host organisms to utilize alkanes as carbon sources.
Arnold, Frances H.   +3 more
core   +3 more sources

Efficient regio- and stereoselective access to novel fluorinated β-aminocyclohexanecarboxylates

open access: yesBeilstein Journal of Organic Chemistry, 2013
A regio- and stereoselective method has been developed for the synthesis of novel fluorinated 2-aminocyclohexanecarboxylic acid derivatives with the fluorine attached to position 4 of the ring.
Loránd Kiss   +4 more
doaj   +1 more source

Efficient hydroxylation of flavonoids by using whole-cell P450 sca-2 biocatalyst in Escherichia coli

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The hydroxylation is an important way to generate the functionalized derivatives of flavonoids. However, the efficient hydroxylation of flavonoids by bacterial P450 enzymes is rarely reported.
Baodong Hu   +24 more
doaj   +1 more source

Characterization of porcine hepatic and intestinal drug metabolizing CYP450 : comparison with human orthologues from a quantitative, activity and selectivity perspective [PDF]

open access: yes, 2019
Over the past two decades, the pig has gained attention as a potential model for human drug metabolism. Cytochrome P450 enzymes (CYP450), a superfamily of biotransformation enzymes, are pivotal in drug metabolism.
Croubels, Siska   +7 more
core   +1 more source

Inhibition of CpLIP2 Lipase Hydrolytic Activity by Four Flavonols (Galangin, Kaempferol, Quercetin, Myricetin) Compared to Orlistat and Their Binding Mechanisms Studied by Quenching of Fluorescence

open access: yesMolecules, 2019
The inhibition of recombinant CpLIP2 lipase/acyltransferase from Candida parapsiolosis was considered a key model for novel antifungal drug discovery and a potential therapeutic target for candidiasis. Lipases have identified recently as potent virulence
Ruba Nasri   +6 more
doaj   +1 more source

Designed whole-cell-catalysis-assisted synthesis of 9,11-secosterols

open access: yesBeilstein Journal of Organic Chemistry, 2021
A method for the synthesis of 9,11-secosteroids starting from the natural corticosteroid cortisol is described. There are two key steps in this approach, combining chemistry and synthetic biology.
Marek Kõllo   +7 more
doaj   +1 more source

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