5,189 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Unnatural amino acid photo-crosslinking of the IKs channel complex demonstrates a KCNE1:KCNQ1 stoichiometry of up to 4:4

    Christopher I Murray, Maartje Westhoff ... David Fedida
    The IKs potassium channel complex displays functional flexibility that depends on the ratio of its constituent KCNQ1 and KCNE1 protein subunits.
    1. Structural Biology and Molecular Biophysics

    Unmasking coupling between channel gating and ion permeation in the muscle nicotinic receptor

    John R Strikwerda, Steven M Sine
    Mutating a highly conserved intramembrane salt bridge unmasks structural and functional coupling between channel gating and ion permeation in the muscle nicotinic receptor.
    1. Structural Biology and Molecular Biophysics

    Aminomethanesulfonic acid illuminates the boundary between full and partial agonists of the pentameric glycine receptor

    Josip Ivica, Hongtao Zhu ... Lucia G Sivilotti
    The sulfonate analog of glycine is very efficacious in activating glycine channels and causes conformational changes in this pentameric ligand-gated channel that are similar to those produced by glycine itself.
    1. Structural Biology and Molecular Biophysics

    Ligand discrimination and gating in cyclic nucleotide-gated ion channels from apo and partial agonist-bound cryo-EM structures

    Jan Rheinberger, Xiaolong Gao ... Crina M Nimigean
    High resolution SthK channel cryo-EM structures in different ligand-bound states combined with single-channel functional data in the same conditions constrain a gating mechanism for CNG channels.
    1. Cell Biology

    β-blockers augment L-type Ca2+ channel activity by targeting spatially restricted β2AR signaling in neurons

    Ao Shen, Dana Chen ... Yang K Xiang
    FRET biosensor-based measurement of cAMP signaling and single-channel recording reveal that β-blockers trigger local activation of adrenergic receptors and calcium channels in primary neurons.
    1. Cell Biology
    2. Neuroscience

    Activity and Ca2+ regulate the mobility of TRPV1 channels in the plasma membrane of sensory neurons

    Eric N Senning, Sharona E Gordon
    Channel activity is a novel regulatory mechanism for channel mobility in the plasma membrane.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    The mammalian rod synaptic ribbon is essential for Cav channel facilitation and ultrafast synaptic vesicle fusion

    Chad Paul Grabner, Tobias Moser
    The mouse rod photoreceptor ribbon creates a large number of releasable vesicles with uniform release kinetics.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    The heteromeric PC-1/PC-2 polycystin complex is activated by the PC-1 N-terminus

    Kotdaji Ha, Mai Nobuhara ... Markus Delling
    Soluble fragments cleaved from the N-terminus of PC-1 activate the PC-1/PC-2 heteromeric polycystin channel, describing for the first time that the N-terminus itself is an endogenous ligand.
    1. Neuroscience

    Balance of activity during a critical period tunes a developing network

    Iain Hunter, Bramwell Coulson ... Richard A Baines
    Neurodevelopmental critical periods act to integrate activity to encode homeostatic set points that remain fixed thereafter.
    1. Neuroscience

    A dynamic generative model can extract interpretable oscillatory components from multichannel neurophysiological recordings

    Proloy Das, Mingjian He, Patrick L Purdon
    Oscillation component analysis enables cognitive neuroscientists to summarize millisecond-precision high-dimensional neurophysiological recordings into a smaller set of oscillatory components through biophysically inspired generative modeling of neural oscillations.

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