Results 41 to 50 of about 65,501 (244)

The influence of lipids on voltage-gated ion channels [PDF]

open access: yesCurrent Opinion in Structural Biology, 2012
Voltage-gated ion channels are responsible for transmitting electrochemical signals in both excitable and non-excitable cells. Structural studies of voltage-gated potassium and sodium channels by X-ray crystallography have revealed atomic details on their voltage-sensor domains (VSDs) and pore domains, and were put in context of disparate mechanistic ...
Qiu-Xing, Jiang, Tamir, Gonen
openaire   +2 more sources

Potential roles of voltage-gated ion channel disruption in Tuberous Sclerosis Complex

open access: yesFrontiers in Molecular Neuroscience
Tuberous Sclerosis Complex (TSC) is a lynchpin disorder, as it results in overactive mammalian target of rapamycin (mTOR) signaling, which has been implicated in a multitude of disease states.
Hailey X. Egido-Betancourt   +2 more
doaj   +1 more source

Cryo-EM structure of the KvAP channel reveals a non-domain-swapped voltage sensor topology

open access: yeseLife, 2019
Conductance in voltage-gated ion channels is regulated by membrane voltage through structural domains known as voltage sensors. A single structural class of voltage sensor domain exists, but two different modes of voltage sensor attachment to the pore ...
Xiao Tao, Roderick MacKinnon
doaj   +1 more source

Structural modeling of ion channels using AlphaFold2, RoseTTAFold2, and ESMFold

open access: yesChannels
Ion channels play key roles in human physiology and are important targets in drug discovery. The atomic-scale structures of ion channels provide invaluable insights into a fundamental understanding of the molecular mechanisms of channel gating and ...
Phuong Tran Nguyen   +5 more
doaj   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

Voltage-Gated Ion Channels and Electrical Excitability [PDF]

open access: yesNeuron, 1998
Our original research has been generously supported over many years by National Institutes of Health grants NS08174 and NS12547.
Armstrong, Clay M, Hille, Bertil
openaire   +2 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Marine Toxins Targeting Ion Channels

open access: yesMarine Drugs, 2006
: This introductory minireview points out the importance of ion channels for cell communication. The basic concepts on the structure and function of ion channels triggered by membrane voltage changes, the so-called voltage-gated ion channels (VGICs), as ...
Hugo R. Arias
doaj   +1 more source

KCNQs: Ligand- and Voltage-Gated Potassium Channels

open access: yesFrontiers in Physiology, 2020
Voltage-gated potassium (Kv) channels in the KCNQ (Kv7) family are essential features of a broad range of excitable and non-excitable cell types and are found in organisms ranging from Hydra vulgaris to Homo sapiens.
Geoffrey W. Abbott
doaj   +1 more source

Epilepsy‐Associated Variants of a Single SCN1A Codon Exhibit Divergent Functional Properties

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Pathogenic variants in SCN1A, which encodes the voltage‐gated sodium channel NaV1.1, are associated with multiple epilepsy syndromes exhibiting a range of clinical severity. SCN1A variants are reported in different syndromes, including Dravet syndrome, which is associated with loss‐of‐function, whereas neonatal/infantile‐onset ...
Lanie N. Liebovitz   +3 more
wiley   +1 more source

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