Results 41 to 50 of about 942,347 (195)

Obligate coupling of CFTR pore opening to tight nucleotide-binding domain dimerization

open access: yeseLife, 2016
In CFTR, the chloride channel mutated in cystic fibrosis (CF) patients, ATP-binding-induced dimerization of two cytosolic nucleotide binding domains (NBDs) opens the pore, and dimer disruption following ATP hydrolysis closes it.
Csaba Mihályi   +2 more
doaj   +1 more source

PPI-MASS: An Interactive Web Server to Identify Protein-Protein Interactions From Mass Spectrometry-Based Proteomics Data

open access: yesFrontiers in Molecular Biosciences, 2021
Mass spectrometry-based proteomics methods are widely used to identify and quantify protein complexes involved in diverse biological processes. Specifically, tandem mass spectrometry methods represent an accurate and sensitive strategy for identifying ...
Mariela González-Avendaño   +21 more
doaj   +1 more source

Monod-Wyman-Changeux Analysis of Ligand-Gated Ion Channel Mutants [PDF]

open access: yes, 2017
We present a framework for computing the gating properties of ligand-gated ion channel mutants using the Monod-Wyman-Changeux (MWC) model of allostery. We derive simple analytic formulas for key functional properties such as the leakiness, dynamic range,
Einav, Tal, Phillips, Rob
core   +4 more sources

Cell-specific mechanisms of TMEM16A Ca2+-activated chloride channel in cancer

open access: yesMolecular Cancer, 2017
TMEM16A (known as anoctamin 1) Ca2+-activated chloride channel is overexpressed in many tumors. TMEM16A overexpression can be caused by gene amplification in many tumors harboring 11q13 amplification.
Hui Wang   +6 more
doaj   +1 more source

Lipid-Centric Approaches in Combating Infectious Diseases: Antibacterials, Antifungals and Antivirals with Lipid-Associated Mechanisms of Action

open access: yesAntibiotics, 2023
One of the global challenges of the 21st century is the increase in mortality from infectious diseases against the backdrop of the spread of antibiotic-resistant pathogenic microorganisms.
Olga S. Ostroumova, Svetlana S. Efimova
doaj   +1 more source

New Challenges Resulting From the Loss of Function of Nav1.4 in Neuromuscular Diseases

open access: yesFrontiers in Pharmacology, 2021
The voltage-gated sodium channel Nav1.4 is a major actor in the excitability of skeletal myofibers, driving the muscle force in response to nerve stimulation.
Sophie Nicole   +3 more
doaj   +1 more source

Channel Optical Waveguides and Directional Couplers in GaAs -- Imbedded and Ridged [PDF]

open access: yes, 1973
Two-channel imbedded directional couplers were fabricated with proton implantation, yielding complete light transfer in 2 mm. Ridged channel guides were fabricated by ion-micromachining epitaxial layers, and a method of directional coupling was ...
Garmire, E.   +4 more
core   +2 more sources

Differential interactions of bacterial lipopolysaccharides with lipid membranes: implications for TRPA1-mediated chemosensation

open access: yesScientific Reports, 2018
Bacterial lipopolysaccharides (LPS) activate the TRPA1 cation channels in sensory neurons, leading to acute pain and inflammation in mice and to aversive behaviors in fruit flies.
Justyna B. Startek   +3 more
doaj   +1 more source

Biophysical Effects Of Ion Concenteration On The Affinity Between Nanopore, OmpF Lumen and Passing Nucleotide [PDF]

open access: yes, 2010
OmpF an outer-membrane porin channel of _E. Coli_ posses beta-barrel structure, whose conductivity and gating phenomena are affected by changes in pH, salt concentration and so on. The distribution of amino acids in OmpF induces a non homologous electric
Hamid Mobasheri, Saeid Hadi
core   +2 more sources

Comparison of Langevin and Markov channel noise models for neuronal signal generation

open access: yes, 2009
The stochastic opening and closing of voltage-gated ion channels produces noise in neurons. The effect of this noise on the neuronal performance has been modelled using either approximate or Langevin model, based on stochastic differential equations or ...
A. L. Hodgkin   +15 more
core   +1 more source

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