115 results found
    1. Cell Biology
    2. Computational and Systems Biology

    Development, calibration, and validation of a novel human ventricular myocyte model in health, disease, and drug block

    Jakub Tomek et al.
    A computer model of human cardiomyocyte was produced and validated on independent datasets, overcoming shortcomings of its predecessors, also yielding broadly relevant insights and results on major ionic currents.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Dynamic change of electrostatic field in TMEM16F permeation pathway shifts its ion selectivity

    Wenlei Ye et al.
    TMEM16F shifts its ion selectivity in response to change of intracellular Ca2+, membrane potential and ionic strength.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures and functional characterization of murine Slc26a9 reveal mechanism of uncoupled chloride transport

    Justin D Walter et al.
    The cryo-EM structure and functional characterization of the chloride-selective ion transporter Slc26a9 defines its oligomeric architecture and transport mechanism.
    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 et al.
    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. Cell Biology

    Apolipoprotein L-1 renal risk variants form active channels at the plasma membrane driving cytotoxicity

    Joseph A Giovinazzo et al.
    Cytotoxicity associated with APOL1 renal-risk variants occurs through its plasma-membrane localization, where aberrant channel activity drives a sustained sodium and calcium influx leading to cell swelling and eventually cell death.
    1. Genetics and Genomics
    2. Neuroscience

    Roles of the ClC chloride channel CLH-1 in food-associated salt chemotaxis behavior of C. elegans

    Chanhyun Park et al.
    A ClC chloride channel protein allows neurons to interpret both temporal resolution and intensity of sensory input, which thereby contributes to an experience-dependent navigation behavior.
    1. Neuroscience

    Excitation of medium spiny neurons by ‘inhibitory’ ultrapotent chemogenetics via shifts in chloride reversal potential

    Stephanie C Gantz et al.
    Modifying membrane potential by an 'inhibitory' chloride conductance such as PSAM4-GlyR is inherently unstable because the normally low intracellular concentration of chloride is readily increased by influx of chloride.
    1. Neuroscience
    2. Physics of Living Systems

    Arterial smooth muscle cell PKD2 (TRPP1) channels regulate systemic blood pressure

    Simon Bulley et al.
    Arterial myocyte PKD2 channels are activated by vasoconstrictor stimuli, which increases blood pressure, are upregulated during hypertension and cell-specific knockout in vivo reduces both physiological blood pressure and hypertension.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structure of a natural light-gated anion channelrhodopsin

    Hai Li et al.
    The atomic structure of GtACR1 provides new insight into the chemical mechanism of natural light-gated anion membrane conductance, and enables its optimization for optogenetic photoinhibition of neuron firing.
    1. Structural Biology and Molecular Biophysics

    Patient-specific mutations impair BESTROPHIN1’s essential role in mediating Ca2+-dependent Cl- currents in human RPE

    Yao Li et al.
    A multidisciplinary platform featured by patient-derived RPEs is established to study the disease-causing mechanisms of BEST1 mutations, and demonstrates gene-supplemented rescue of the mutation-caused deficiency in Ca2+-dependent Cl- current in human RPE.

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