1,025 results found
    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

    Real time dynamics of Gating-Related conformational changes in CorA

    Martina Rangl et al.
    High-speed atomic force microscopy reveals that the open state of the divalent ion channel CorA is highly dynamic and defined by the fast exchange between conformations.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Conformational dynamics in TRPV1 channels reported by an encoded coumarin amino acid

    Ximena Steinberg et al.
    Single-molecule measurement of conformational dynamics using a genetically encoded fluorescent probe suggests that the selectivity filter region of TRPV1 channels undergoes dynamic motion during agonist activation.
    1. Neuroscience

    Elementary sensory-motor transformations underlying olfactory navigation in walking fruit-flies

    Efrén Álvarez-Salvado et al.
    A high-throughput behavioral paradigm and computational modeling are used to decompose olfactory navigation in walking Drosophila melanogaster into a set of quantitative relationships between sensory input and motor output.
    1. Neuroscience

    Lognormal firing rate distribution reveals prominent fluctuation–driven regime in spinal motor networks

    Peter C Petersen, Rune W Berg
    Neuronal participation in generation of motor patterns in the spinal circuits is lognormal, which is an indication of a rich diversity of activity within the mean-driven as well as the fluctuation-driven regimes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    High-resolution structures of multiple 5-HT3AR-setron complexes reveal a novel mechanism of competitive inhibition

    Sandip Basak et al.
    Cryo-electron microscopic structures of 5-HT3A receptor in complex with first and second generations of clinically used setron reveal the molecular basis for their binding modes and mechanisms of inhibitory action.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for direct actin force-sensing by α-catenin

    Lin Mei et al.
    Biophysical and structural studies reveal how low piconewton forces across actin enhance binding by the critical cell-cell adhesion protein α-catenin versus its force insensitive homolog vinculin.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Atomic structure of a mitochondrial complex I intermediate from vascular plants

    Maria Maldonado et al.
    The first atomic resolution structure of a mitochondrial respiratory complex from plants provides insight into the assembly and evolution of respiration in autotrophic eukaryotes.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    IP3 mediated global Ca2+ signals arise through two temporally and spatially distinct modes of Ca2+ release

    Jeffrey T Lock, Ian Parker
    Cell-wide Ca2+ signals that regulate numerous cellular functions comprise dual Ca2+ release modes through IP3 receptors, punctate transients mediated by clustered receptors and spatiotemporally diffuse release through functionally distinct receptors.
    1. Neuroscience

    An arbitrary-spectrum spatial visual stimulator for vision research

    Katrin Franke et al.
    Towards a community effort, we here present a flexible yet standardised visual stimulator design based on open hardware and software.

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