2,735 results found
    1. Cell Biology

    An adaptation of astronomical image processing enables characterization and functional 3D mapping of individual sites of excitation-contraction coupling in rat cardiac muscle

    Qinghai Tian et al.
    The fusion of astronomy and cellular cardiology reveals the 3D arrangement and the firing reliability of active excitation-contraction coupling sites in beating cardiac myocytes.
    1. Structural Biology and Molecular Biophysics

    cisTEM, user-friendly software for single-particle image processing

    Timothy Grant et al.
    cisTEM enables fast processing of single-particle cryo-EM data on CPU-based workstations and is easily accessible to new users.
    1. Structural Biology and Molecular Biophysics

    2.8 Å resolution reconstruction of the Thermoplasma acidophilum 20S proteasome using cryo-electron microscopy

    Melody G Campbell et al.
    Water molecules and amino-acid side chain rotamers have been resolved in the cryoEM structure of T20S proteasome at 2.8 angstroms.
    1. Structural Biology and Molecular Biophysics

    Ribosome structures to near-atomic resolution from thirty thousand cryo-EM particles

    Xiao-chen Bai et al.
    A combination of direct-electron detectors and statistical movie processing allows ribosome cryo-EM structures to be determined to resolutions that were previously only attainable by X-ray crystallography.
    1. Structural Biology and Molecular Biophysics

    Characterisation of molecular motions in cryo-EM single-particle data by multi-body refinement in RELION

    Takanori Nakane et al.
    Multi-body refinement in RELION allows high-resolution reconstruction and visualisation of molecular motions in cryo-EM single-particle data sets with continuous forms of structural heterogeneity.
    1. Neuroscience

    Ultra-Rapid serial visual presentation reveals dynamics of feedforward and feedback processes in the ventral visual pathway

    Yalda Mohsenzadeh et al.
    Reducing visibility with higher image presentation rates increases recurrent processing demands along the visual processing pathway to resolve object recognition.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Head-to-tail interactions of the coiled-coil domains regulate ClpB activity and cooperation with Hsp70 in protein disaggregation

    Marta Carroni et al.
    Overcoming image-processing problems in the analysis of the ClpB chaperone provides a new structural model and regulatory mechanism, based on clear density for the coiled-coil domain and supported by various biochemical data.
    1. Neuroscience

    Visual processing of informative multipoint correlations arises primarily in V2

    Yunguo Yu et al.
    Building on recent findings that central sensory processing allocates resources according to the informativeness of statistical features (Hermundstad et al., 2014), we identify visual area V2 as the site of the relevant computations for local image statistics, thus providing a common underpinning for diverse aspects of its neuronal selectivity.
    1. Neuroscience

    A double-sided microscope to realize whole-ganglion imaging of membrane potential in the medicinal leech

    Yusuke Tomina, Daniel A Wagenaar
    For the first time, action potentials and subthreshold postsynaptic potentials of almost all individual identifiable neurons within a functional unit of the leech nervous system were simultaneously imaged during sensory processing and behavioral generation.

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