Results 91 to 100 of about 217,585 (392)

The use of the lactone motif in chemical communication.

Natural product reports (Print), 2015
A wide variety of organisms communicate via the chemical channel using small molecules. A structural feature quite often found is the lactone motif. In the present paper, the current knowledge on such lactones will be described, concentrating on the ...
S. Schulz, Susann Hötling
semanticscholar   +1 more source

High‐Performance Ambipolar Organic Electrochemical Transistors Based on Diketopyrrolopyrrole‐Dialkoxybithiazole Conjugated Polymers for Single‐component Inverters

Advanced Science, EarlyView.
Two donor‐acceptor conjugated polymers, incorporating diketopyrrolopyrrole (DPP) and dialkoxybithiazole (2Tz) units with ethylene glycol (EG) side chains, exhibit relatively balanced ambipolar organic electrochemical transistor (OECT) performance. This ambipolarity enables the realization of single‐component complementary inverters capable of ternary ...
Jiazheng Li, Zhi Li, Jiayu Huang, Jingjing Su, Peijie Xu, Siwen Wang, Ping Zhang, Yuchuan Tian, Tao Pan, Junyang Liu, Junyu Li, Gang Ye, Ryan C. Chiechi, Yanxi Zhang, Wenjing Hong   +14 more
wiley   +1 more source

The stereochemistry of the Nozaki-Hiyama-Kishi reaction and the construction of 10-membered lactones. The enantioselective total synthesis of (-)-decarestrictine D

Journal of the Brazilian Chemical Society, 2001
The use of the intramolecular Nozaki-Hiyama-Kishi reaction to construct 10-membered lactones is described. The influence of the nature of the protecting groups at C4 and C5 on the stereochemistry of the newly formed stereogenic center at C7 was ...
Pilli Ronaldo A., Victor Mauricio M.
doaj  

Identification of Quorum-Sensing Molecules of N-Acyl-Homoserine Lactone in Gluconacetobacter Strains by Liquid Chromatography-Tandem Mass Spectrometry

Molecules, 2019
Many Gram-negative bacteria can regulate gene expression in a cell density-dependent manner via quorum-sensing systems using N-acyl-homoserine lactones (AHLs), which are typical quorum-sensing signaling molecules, and thus modulate physiological ...
Ling-Pu Liu, Long-Hui Huang, Xiao-Tong Ding, Lin Yan, Shi-Ru Jia, Yu-Jie Dai, Yan-Yan Xie, Cheng Zhong   +7 more
doaj   +1 more source

Deconjugation Kinetics of Glucuronidated Phase II Flavonoid Metabolites by B-glucuronidase from Neutrophils [PDF]

, 2010
Flavonoids are inactivated by phase II metabolism and occur in the body as glucuronides. Mammalian ß-glucuronidase released from neutrophils at inflammatory sites may be able to deconjugate and thus activate flavonoid glucuronides.
Arts, I.C.W., Bartholomé, R., Bast, A., Dagnelie, P.C., Haenen, G., Hollman, P.C.H., Keijer, J., Kroon, P.A., Needs, P.W., Roos, D.   +9 more
core   +2 more sources

Higher‐Level Structural Classification of Pseudomonas Cyclic Lipopeptides through Their Bioactive Conformation

Advanced Science, EarlyView.
Solution structures of a series of cyclic lipodepsipeptides from Pseudomonas reveal that these specialized metabolites adopt left‐handed alpha helical conformations of only two types, being either ‘stapled’ or ‘catch‐pole’ helix. The particular modular distribution of the biosynthetic gene clusters is found to determine the extent of their conserved ...
Benjámin Kovács, Durga Prasad, Vic De Roo, Matthias Vanheede, Penthip Muangkaew, Annemieke Madder, Monica Höfte, René De Mot, Niels Geudens, José C. Martins   +9 more
wiley   +1 more source

The role of CDC48 in the retro-translocation of non-ubiquitinated toxin substrates in plant cells [PDF]

, 2009
When the catalytic A subunits of the castor bean toxins ricin and Ricinus communis agglutinin (denoted as RTA and RCA A, respectively) are delivered into the endoplasmic reticulum (ER) of tobacco protoplasts, they become substrates for ER ...
Aldo Ceriotti, Allen, Bays, Brandizzi, Braun, Caldwell, Campbell, Carlson, Carter, Carvalho, Chaddock, Christopher J. Snowden, Contento, Dalal, Day, Deak, Deeks, Denecke, Denic, Di Cola, Di Cola, Feiler, Frigerio, Hellens, Hunter, J. Michael Lord, Jarosch, Jolliffe, Kirst, Klein, Kothe, Lee, Lord, Lorenzo Frigerio, Lynne M. Roberts, Maliga, Martinez, Meusser, Muller, Nicholas A. Jolliffe, Pedrazzini, Pimpl, Rabinovich, Rancour, Rape, Richard S. Marshall, Richly, Roberts, Roberts, Roberts, Romisch, Schmid, Schuberth, Simpson, Smalle, Swanson, Tabe, Tsai, Vashist, Vashist, Vitale, Wahlman, Wiertz, Wojcik, Wojcik, Worthington, Ye, Ye, Yoshida, Yoshida   +69 more
core   +2 more sources

Systematic Metabolic Engineering and Model‐Guided Optimization for High‐Level Production of L‐Theanine From Xylose in Escherichia Coli

Advanced Science, EarlyView.
This study is pioneering in constructing the shortest known synthetic pathway for L‐theanine production from xylose within E coli. Through comprehensive metabolic engineering strategies, our engineered strain achieved the highest reported L‐theanine titer from xylose, with a titer of 95.42 g/L, and a yield of 0.55 g/g.
Haolin Han, Boyuan Xue, Guangqi Shan, Meng Meng, Shaojie Wang, Haijia Su   +5 more
wiley   +1 more source

Lactonization of α-Ferrocenyl Ketocarboxylic Acids via Nucleophilic Attack of Carbonyl Oxygen

Crystals
The effects of the ferrocenyl moiety to enhance the nucleophilicity of the carbonyl group, situated at its adjacent position, have been explored in a series of α-ferrocenyl ketocarboxylic acids.
Uttam R. Pokharel, Brennan J. Curole, Autumn M. Andras, Brandon P. LeBlanc, Frank R. Fronczek   +4 more
doaj   +1 more source

UPLC-PDA-Q Exactive Orbitrap-MS profiling of the lipophilic compounds product isolated from Eucalyptus viminalis plants

Heliyon, 2020
The lipophilic compounds product (LCP), which was isolated and purified from Eucalyptus viminalis plants, has shown earlier broad antimicrobial and anti-inflammatory activities. To study secondary compounds responsible for the pharmacological activities,
Vladimir Ossipov, Anne Koivuniemi, Praskovia Mizina, Juha-Pekka Salminen   +3 more
doaj   +1 more source