Results 71 to 80 of about 486,719 (268)

Molecular Structure of Heterocycles: 6. Solvent Effects on the 17O Nmr Chemical Shifts of 5-Trichloromethylisoxazoles

Journal of the Brazilian Chemical Society, 2001
A multilinear-regression analysis using the Kamlet-Abboud-Taft (KAT) solvatochromic parameters in order to elucidate and quantify the solvent effects on the 17O chemical shifts of three 5-trichloromethylisoxazoles [(1a) non-, (1b) 3-methyl- and (1c) 4 ...
Martins Marcos A. P., Freitag Rogério A., Zimmermanna Nilo E. K., Sinhorin Adilson P., Cúnico Wilson, Bastos Giovani P., Zanatta Nilo, Bonacorso Helio G.   +7 more
doaj  

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

First principle investigation of the linker length effects on the thermodynamics of divalent pseudorotaxanes

Beilstein Journal of Organic Chemistry, 2015
The Gibbs energies of association (Gibbs free (binding) energies) for divalent crown-8/ammonium pseudorotaxanes are determined by investigating the influence of different linkers onto the binding. Calculations are performed with density functional theory
Andreas J. Achazi, Doreen Mollenhauer, Beate Paulus   +2 more
doaj   +1 more source

Chemical Composition of <em>Artemisia annua</em> L. Leaves and Antioxidant Potential of Extracts as a Function of Extraction Solvents

Molecules, 2012
This study was conducted to investigate the chemical and nutritional composition of <em>Artemisia annua</em> leaves in addition to determination of antioxidant potential of their extracts prepared in different solvents.
Maznah Ismail, Shahid Iqbal, Umer Younas, Kim Wei Chan, Muhammad Zia-Ul-Haq   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Study the Effect of Solvent / Non-solvent on Polycarbonate [PDF]

American Journal of Nanosciences, 2017
A stable superhydrophobic PC surface was obtained by a simple phase separation method at room temperature. The water contact angle of the superhydrophobic PC surface is 156± 2°. FESEM image exhibited that the PC surface composed of flower-like shaped linked together centrally with branches offered roughness on the surface with a hierarchical micro/nano-
openaire   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Multi-Morphology CeO₂ Synthesis via Synergistic Induction by Solvent and Ammonium Bicarbonate

Molecules
CeO2 is a crucial functional material in catalysis and energy applications, whose performance is highly morphology-dependent. Traditional synthesis methods often rely on organic templates or surfactants, which complicate the processes and pose ...
Yaohui Xu, Yu Hu, Sihan Li, Xiaoyu Gong, Shiya Xiao, Xin Zhang, Lian Li, Yanxi Liu, Zhao Ding   +8 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source