Results 61 to 70 of about 89,225 (346)

N-Acylation of Oxazolidinones via Aerobic Oxidative NHC Catalysis [PDF]

open access: yes, 2018
In the ongoing quest to find alternatives to atom un-economical and forcing conditions in acylation reactions, aerobic oxidative NHC catalysis has emerged as a method to convert aldehydes to potent acylating reagents.
Henrik Sundén (1399444)   +15 more
core   +1 more source

Biocatalytic approach to the chemoselective acylation of sesquiterpene lactones from chicory: a pathway to novel ester derivatives [PDF]

open access: yes, 2023
In this study, we explore the use of the immobilized lipase Novozym 435 in the selective acylation of chicory sesquiterpene lactones (STLs) - lactucin (Lc), 11β,13-dihydrolactucin (DHLc), lactucopicrin (Lp), and 11β,13-dihydrolactucopicrin (DHLp) - using
Rénato, Froidevaux   +7 more
core   +1 more source

Assaying protein palmitoylation in plants

open access: yesPlant Methods, 2008
Background Protein S-acylation (also known as palmitoylation) is the reversible post-translational addition of acyl lipids to cysteine residues in proteins through a thioester bond. It allows strong association with membranes.
Taylor Laura   +2 more
doaj   +1 more source

Histone acylation marks respond to metabolic perturbations and enable cellular adaptation

open access: yesExperimental and Molecular Medicine, 2020
Acetylation is the most studied histone acyl modification and has been recognized as a fundamental player in metabolic gene regulation, whereas other short-chain acyl modifications have only been recently identified, and little is known about their ...
Chanhee Jo   +6 more
semanticscholar   +1 more source

Chemoenzymatic Synthesis of Well‐Defined α(2,8)‐ and α(2,9)‐Linked Oligosialosides

open access: yesAngewandte Chemie, EarlyView.
Well‐defined α(2,8)‐ and α(2,9)‐linked oligosialic acids of different lengths can be prepared by employing recombinant bacterial polysialyltransferases in combination with chemically modified CMP‐Neu5Ac derivatives. After transfer, a sialoside is formed bearing an artificial entity, which blocks further glycosylation.
Jelle A. Fok   +4 more
wiley   +2 more sources

Chiral isothiourea-catalyzed kinetic resolution of 4-hydroxy[2.2]paracyclophane

open access: yesBeilstein Journal of Organic Chemistry, 2021
We herein report a method for the kinetic resolution of racemic 4-hydroxy[2.2]paracyclophane by means of a chiral isothiourea-catalyzed acylation with isobutyric anhydride.
David Weinzierl, Mario Waser
doaj   +1 more source

Palmitoylation as a Key Regulator of Ras Localization and Function

open access: yesFrontiers in Molecular Biosciences, 2021
Ras proteins require membrane association for proper function. This process is tightly regulated by reversible palmitoylation that controls not only the distribution over different subcellular compartments but also Ras compartmentalization within ...
Carla Busquets-Hernández, Gemma Triola
doaj   +1 more source

HNRNPU K181 Lactylation Drives Cervical Cancer Growth by Upregulating PHGDH and Reprogramming Serine Metabolism

open access: yesAdvanced Science, EarlyView.
Lactate in cervical cancer induces HNRNPU K181 lactylation, opposed by NAA50‐mediated acetylation and suppressed by Pazopanib. This lactylation enhances HNRNPU binding to PHGDH pre‐mRNA exon 1, maintaining exon 1‐containing transcripts and mRNA stability, thereby activating serine metabolism.
Chang Zhang   +6 more
wiley   +1 more source

Rediscovering the double Friedel-Crafts acylation : an expedient entry to phenanthrene-9,10-diones [PDF]

open access: yes, 2013
The double Friedel–Crafts acylation of readily accessible biaryls with oxalyl chloride delivers the respective phenanthrene-9,10-diones, providing an alternative to the traditional methods, which require harsh oxidizing conditions and multistep sequences.
Müller, Sebastian   +4 more
core   +1 more source

A Lipid‐Conjugation Strategy for Intracellular Reactive Oxygen Species Control in Hepatic Cells

open access: yesAngewandte Chemie, EarlyView.
A lipid conjugation strategy anchors a manganese Salen complex within phospholipid membranes, yielding stable, catalytically active liposomes. These lipid–metal assemblies efficiently degrade reactive oxygen species (ROS) and enable intracellular redox control in steatotic HepaRG cells, offering a precise route to biomimetic antioxidant design ...
Olav Vestrheim   +7 more
wiley   +2 more sources

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