3,530 results found
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Structural determinants of voltage-gating properties in calcium channels

    Monica L Fernández-Quintero, Yousra El Ghaleb ... Bernhard E Flucher
    Structure modeling, site-directed mutagenesis, and current recordings revealed the mechanism by which stabilization of voltage sensors in the resting and activated states determines the gating properties of the CaV1.1 calcium channel.
    1. Computational and Systems Biology
    2. Neuroscience

    Nonlinearities between inhibition and T-type calcium channel activity bidirectionally regulate thalamic oscillations

    Adam C Lu, Christine Kyuyoung Lee ... Mark P Beenhakker
    A multi-scale integration of experimental and computational approaches shows how a non-linear dependence of T-type calcium channel gating on GABAB receptor activity regulates thalamic network oscillations.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Atypical calcium regulation of the PKD2-L1 polycystin ion channel

    Paul G DeCaen, Xiaowen Liu ... David E Clapham
    Outward calcium ion currents desensitize the human PKD2-L1 ion channel via a mechanism that is independent of cytosolic motifs.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A comprehensive search for calcium binding sites critical for TMEM16A calcium-activated chloride channel activity

    Jason Tien, Christian J Peters ... Huanghe Yang
    The identification of four acidic amino acids as potential calcium-binding residues in the TMEM16A calcium-activated chloride channel furthers the molecular understanding of this ion channel family.
    1. Neuroscience

    The active-zone protein Munc13 controls the use-dependence of presynaptic voltage-gated calcium channels

    Nathaniel Calloway, Géraldine Gouzer ... Timothy A Ryan
    Munc13, a protein that is essential for exocytosis, controls the behavior of voltage gated calcium channels and shapes synaptic plasticity on fast time scales.
    1. Computational and Systems Biology
    2. Medicine

    A computational model predicts sex-specific responses to calcium channel blockers in mammalian mesenteric vascular smooth muscle

    Gonzalo Hernandez-Hernandez, Samantha C O'Dwyer ... Colleen E Clancy
    A computer model predicts different mechanisms of blood pressure regulation and effective hypertensive therapy for males and females, thereby serving as a foundational tool for improved treatment precision.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanisms of gating in the calcium-activated chloride channel bestrophin

    Alexandria N Miller, George Vaisey, Stephen B Long
    Cryo-EM structures of the gating cycle of bestrophin reveal the molecular underpinnings of activation and inactivation gating in this calcium-activated chloride channel and reveal a surprisingly wide pore.
    1. Chromosomes and Gene Expression
    2. Medicine

    A deleterious gene-by-environment interaction imposed by calcium channel blockers in Marfan syndrome

    Jefferson J Doyle, Alexander J Doyle ... MIBAVA Leducq Consortium
    Calcium channel blockers accelerate aortic aneurysm and cause premature aortic rupture in a mouse model of Marfan syndrome through protein kinase C-mediated activation of extracellular signal-regulated kinase.
    1. Cell Biology

    Ion channels and calcium signaling in motile cilia

    Julia F Doerner, Markus Delling, David E Clapham
    Direct patch clamp of ependymal motile cilia reveals that voltage-gated calcium channels in the cell body dominate their electrical and calcium signaling properties.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Recurrent gain of function mutation in calcium channel CACNA1H causes early-onset hypertension with primary aldosteronism

    Ute I Scholl, Gabriel Stölting ... Richard P Lifton
    A novel Mendelian disease featuring early-onset hypertension is caused by a recurrent gain of function mutation in CACNA1H, which encodes the voltage-gated calcium channel Cav3.2.

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