274 results found
    1. Structural Biology and Molecular Biophysics

    Time-resolved serial femtosecond crystallography reveals early structural changes in channelrhodopsin

    Kazumasa Oda et al.
    Time-resolved serial femtosecond crystallography revealed retinal kink and early changes in channelrhodopsin, which leads to the ion pore formation.
    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. Neuroscience

    Cell type-specific and time-dependent light exposure contribute to silencing in neurons expressing Channelrhodopsin-2

    Alexander M Herman et al.
    Optogenetic techniques, whereby light is used to activate neuronal cells, are quickly becoming widely used in neuroscience; but excessive exposure to light can actually silence certain types of neuronal cells.
    1. Neuroscience

    Cellular resolution circuit mapping with temporal-focused excitation of soma-targeted channelrhodopsin

    Christopher A Baker et al.
    Combining spatial restriction of channelrhodopsin to the neuronal cell body with two photon excitation and calcium imaging will enable production of high resolution maps of neural circuitry.
    1. Cell Biology
    2. Neuroscience

    2018 Gairdner Awards: The past, present and future of light-gated ion channels and optogenetics

    Sheena A Josselyn
    Research into light-gated ion channels called channelrhodospins laid the foundations for the development of optogenetics, a technique that has gone on to revolutionize neuroscience.
    1. Neuroscience

    Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions

    Shigeki Watanabe et al.
    Optogenetics has revealed that synaptic vesicles can be recycled extremely rapidly in nematodes, indicating that existing models for how synapses 'reload' may need to be revised.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Near-infrared photoactivatable control of Ca2+ signaling and optogenetic immunomodulation

    Lian He et al.
    A near-infrared light-stimulable optogenetic platform enables remote and wireless manipulation of calcium signaling and immune responses both in vitro and in vivo to achieve tailored function.
    1. Neuroscience

    Active avoidance requires inhibitory signaling in the rodent prelimbic prefrontal cortex

    Maria M Diehl et al.
    Avoiding danger requires inhibitory signaling in the prelimbic prefrontal cortex, as evidenced by optogenetic manipulations based on neuronal firing patterns.
    1. Neuroscience

    Precise excitation-inhibition balance controls gain and timing in the hippocampus

    Aanchal Bhatia et al.
    Delayed inhibition precisely balances excitation from arbitrary combinations of CA3 neurons and controls the gain of CA1 output by reducing inhibitory delay with increasing excitation.
    1. Neuroscience

    Laminar-specific cortico-cortical loops in mouse visual cortex

    Hedi Young et al.
    Ascending and descending cortico-cortical inputs are stronger on projection neurons that project back to the source of the inputs, forming selective interareal loops in deep but not superficial cortical layers.

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