968 results found
    1. Structural Biology and Molecular Biophysics

    Measuring the optimal exposure for single particle cryo-EM using a 2.6 Å reconstruction of rotavirus VP6

    Timothy Grant, Nikolaus Grigorieff
    The resolution of electron cryo-microscopy can be improved by using optimal exposure values to filter video frames.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM single particle analysis with the Volta phase plate

    Radostin Danev, Wolfgang Baumeister
    The Volta phase plate enables in-focus single particle analysis at near atomic resolutions, which could expand the capabilities of cryo-EM, especially for small, flexible or heterogeneous macromolecular samples.
    1. Structural Biology and Molecular Biophysics

    Low cost, high performance processing of single particle cryo-electron microscopy data in the cloud

    Michael A Cianfrocco, Andres E Leschziner
    A freely available software environment on Amazon's cloud computing network makes processing of cryo-EM data accessible and affordable.
    1. Structural Biology and Molecular Biophysics

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

    Takanori Nakane, Dari Kimanius ... Sjors HW Scheres
    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. Structural Biology and Molecular Biophysics

    New tools for automated high-resolution cryo-EM structure determination in RELION-3

    Jasenko Zivanov, Takanori Nakane ... Sjors HW Scheres
    RELION-3 calculates single-particle reconstructions to higher resolution and with less user-interactions than previously available versions.
    1. Structural Biology and Molecular Biophysics

    Using the Volta phase plate with defocus for cryo-EM single particle analysis

    Radostin Danev, Dimitry Tegunov, Wolfgang Baumeister
    Building on previous work in cryo-electron microscopy (Entchev et al, 2015), it shown that a combination of the Volta phase plate and a small amount of defocus can simplify the experimental set-up, increase the data acquisition rate and improve resolution.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the KvAP channel reveals a non-domain-swapped voltage sensor topology

    Xiao Tao, Roderick MacKinnon
    The structure of KvAP addresses a mechanism of voltage-dependent gating that has been debated for 16 years.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Molecular dynamics-based refinement and validation for sub-5 Å cryo-electron microscopy maps

    Abhishek Singharoy, Ivan Teo ... Klaus Schulten
    New hybrid structure determination methods leveraging the inherent biophysical properties of a macromolecule through molecular dynamics simulations provide accurate and cost-efficient ways of achieving atomic structures from high resolution cryo-electron density maps.
    1. Structural Biology and Molecular Biophysics

    Molecular structures of the human Slo1 K+ channel in complex with β4

    Xiao Tao, Roderick MacKinnon
    The structures of Slo1 in complex with b4 imply that the auxiliary beta subunits modulate the channel's gating properties through stabilizing ‘pre-existing’ conformations rather than creating new ones.
    1. Structural Biology and Molecular Biophysics

    Protein denaturation at the air-water interface and how to prevent it

    Edoardo D'Imprima, Davide Floris ... Werner Kühlbrandt
    Hydrophilized graphene prevents protein denaturation at the air-water interface.

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