4,109 results found
    1. Biophysics and Structural Biology
    2. Neuroscience

    Cooperative and acute inhibition by multiple C-terminal motifs of L-type Ca2+ channels

    Nan Liu et al.
    C-terminus mediated inhibition is one emerging modality of intervention for L-type Ca2+ channels, which coordinate multiple motifs to acutely tune Ca2+ current and Ca2+ influx down to the lower limits preset by end-stage Ca2+-dependent inactivation.
    1. Biophysics and Structural Biology
    2. Neuroscience

    Ca2+ entry into neurons is facilitated by cooperative gating of clustered CaV1.3 channels

    Claudia M Moreno et al.
    CaV1.3 channels of the short isoform are coupled via their C-terminal domains in a Ca2+-CaM-dependent manner, which facilitates Ca2+ influx and increases the discharge of hippocampal neurons.
    1. Neuroscience

    Small conductance Ca2+-activated K+ channels induce the firing pause periods during the activation of Drosophila nociceptive neurons

    Koun Onodera et al.
    Drosophila nociceptive neurons convert high-intensity stimuli into characteristic fluctuations of firing rates, quiescent periods of which are regulated by hyperpolarization through small conductance Ca2+-activated K+ channels.
    1. Biophysics and Structural Biology

    Graded Ca2+/calmodulin-dependent coupling of voltage-gated CaV1.2 channels

    Rose E Dixon et al.
    The Ca2+-driven functional coupling of CaV1.2 channels is a mechanism of channel memory that may modulate the amplification of Ca2+ influx.
    1. Neuroscience

    Nanodomain coupling explains Ca2+ independence of transmitter release time course at a fast central synapse

    Itaru Arai, Peter Jonas
    Ca2+ channels and release sensors at a fast central synapse are tightly coupled, which minimizes the effect of extracellular Ca2+ concentration on the timing of transmitter release.
    1. Developmental Biology and Stem Cells

    DNA methylation and gene expression changes derived from assisted reproductive technologies can be decreased by reproductive fluids

    Sebastian Canovas et al.
    Reproductive fluids help the correct establishment of some epigenetic marks and gene expression in preimplantation pig embryos.
    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. Biophysics and Structural Biology

    Subdued, a TMEM16 family Ca2+-activated Cl channel in Drosophila melanogaster with an unexpected role in host defense

    Xiu Ming Wong et al.
    A newly characterized calcium-activated chloride channel has been implicated in the immune system of Drosophila, shedding light on an enigmatic family of transmembrane proteins that are ubiquitous in nature.
    1. Biophysics and Structural Biology

    Proximal clustering between BK and CaV1.3 channels promotes functional coupling and BK channel activation at low voltage

    Oscar Vivas et al.
    Super-resolution imaging reveals a novel multi-channel arrangement that explains how big potassium (BK) channel activation closely tracks the opening of low-voltage-activated L-type calcium channels.
    1. Biophysics and Structural Biology
    2. Neuroscience

    Mechanical sensitivity of Piezo1 ion channels can be tuned by cellular membrane tension

    Amanda H Lewis, Jörg Grandl
    Tension is the activating stimulus of Piezo1 mechanosensitive ion channels and resting membrane tension modulates overall channel sensitivity to mechanical stimulation.

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