Results 51 to 60 of about 15,584 (224)
Frontiers in Microbiology, 2017 The CrbS/R system is a two-component signal transduction system that regulates acetate utilization in Vibrio cholerae, P. aeruginosa, and P. entomophila.
Edgardo Sepulveda, Andrei N. Lupas
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Fermentation, 2021 In Saccharomyces cerevisiae, the fermentation rate and the ability to complete the sugar transformation process depend on the glucose and fructose transporter set-up. Hexose transport mainly occurs via facilitated diffusion carriers and these are encoded
Chiara Nadai +3 more
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Evolutionary Relationship between K+ Channels and Symporters [PDF]
Biophysical Journal, 1999 The hypothesis is presented that at least four families of putative K(+) symporter proteins, Trk and KtrAB from prokaryotes, Trk1,2 from fungi, and HKT1 from wheat, evolved from bacterial K(+) channel proteins. Details of this hypothesis are organized around the recently determined crystal structure of a bacterial K(+) channel: i.
Evert P. Bakker +4 more
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Advanced NanoBiomed Research, EarlyView.Cancer cell membrane‐based nanoparticles (CCM‐NPs) and cancer cell‐derived small extracellular vesicles (CsEVs) are emerging as promising drug delivery systems for targeted cancer treatment. Advances in nanotechnology have paved the way for innovative drug delivery systems that enhance the effectiveness of cancer treatment.
Wei Zhang +4 more
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Heliyon, 2021 The popular recreational drug MDMA (3,4-methylenedioxy-methamphetamine) has a documented potential as a psychopharmacological clinical and research tool.
Ángel A. Islas +2 more
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Crystallographic Characterization of Sodium Ions in a Bacterial Leucine/Sodium Symporter
Crystals, 2023 Na+ is the most abundant ion in living organisms and plays essential roles in regulating nutrient uptake, muscle contraction, and neurotransmission. The identification of Na+ in protein structures is crucial for gaining a deeper understanding of protein ...
Akira Karasawa +4 more
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Thyroid Na+/I− Symporter [PDF]
Journal of Biological Chemistry, 1997 The rat thyroid Na+/I- symporter (NIS) was expressed in Xenopus laevis oocytes and characterized using electrophysiological, tracer uptake, and electron microscopic methods. NIS activity was found to be electrogenic and Na+-dependent (Na+ >> Li+ >> H+).
Sepehr Eskandari +5 more
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ChemElectroChem, EarlyView.This concept outlines the mechanism of molecular‐level multi‐electron storage, leveraging the quantum properties of electrons in σ bonds. Effective through‐space interactions between the 2pz atomic orbitals of electrophilic centers in organic superelectrophores enable the formation of supra‐LUMOs with bonding character, capable of hosting electrons ...
Éric Brémond +2 more
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Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails
Anais da Academia Brasileira de CiênciasThe objective of this study was to identify thyroid hormones and to examine their putative site of synthesis in Achatina fulica snails. For this purpose, radioimmunoassays were performed for T3 and T4 before and after long starvation with or without ...
DANILO LUSTRINO +8 more
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Uptake of L-cystine via an ABC transporter contributes defense of oxidative stress in the L-cystine export-dependent manner in Escherichia coli. [PDF]
PLoS ONE, 2015 Intracellular thiols like L-cystine and L-cystine play a critical role in the regulation of cellular processes. Here we show that Escherichia coli has two L-cystine transporters, the symporter YdjN and the ATP-binding cassette importer FliY-YecSC.
Iwao Ohtsu +7 more
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