569 results found
    1. Structural Biology and Molecular Biophysics

    Beam-induced motion correction for sub-megadalton cryo-EM particles

    Sjors HW Scheres
    Building on previous work (Bai et al., 2013), we describe an algorithm that allows cryo-EM structure determination to near-atomic resolution for protein complexes as small as 170 kDa.
    1. Structural Biology and Molecular Biophysics

    Electron cryo-microscopy structure of the canonical TRPC4 ion channel

    Deivanayagabarathy Vinayagam et al.
    Structural insights into the architecture and functional properties of zebrafish TRPC4 are revealed by high-resolution cryo-EM.
    1. Structural Biology and Molecular Biophysics

    All-atom molecular dynamics of the HBV capsid reveals insights into biological function and cryo-EM resolution limits

    Jodi A Hadden et al.
    All-atom molecular dynamics of the HBV capsid supports a role for structural asymmetry in biological function, reveals the potential for triangular pores to mediate cellular signaling, and indicates that capsid flexibility may limit resolution attainable by cryo-EM.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of a late pre-40S ribosomal subunit from Saccharomyces cerevisiae

    André Heuer et al.
    Near atomic resolution of late 40S ribosomal subunit assembly by cryo-EM reveals immature rRNA active sites stabilized by biogenesis factors.
    1. Structural Biology and Molecular Biophysics

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

    Radostin Danev et al.
    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
    2. Computational and Systems Biology

    CryoEM and computer simulations reveal a novel kinase conformational switch in bacterial chemotaxis signaling

    C Keith Cassidy et al.
    An atomic model of the bacterial chemosensory array obtained through the synthesis of cryo-electron tomography and large-scale molecular-dynamics simulations reveals a new kinase conformation during signaling events.
    1. Structural Biology and Molecular Biophysics

    CryoEM structures of open dimers of gyrase A in complex with DNA illuminate mechanism of strand passage

    Katarzyna M Soczek et al.
    CryoEM structures of open gyrase A dimers and DNA in two states representing steps either prior to or after passage through the DNA-gate, show where a putative T-segment is found.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    FGF21 trafficking in intact human cells revealed by cryo-electron tomography with gold nanoparticles

    Maia Azubel et al.
    Specific attachment of molecularly defined gold nanoparticles enables precise localization, critical for structural studies in vivo, of proteins of unknown structure within the cellular milieu by cryo-electron tomography.
    1. Structural Biology and Molecular Biophysics

    Routine single particle CryoEM sample and grid characterization by tomography

    Alex J Noble et al.
    Fiducial-less tomography on single particle cryoEM samples reveals that most particles are adsorbed to the air-water interface and allows for researchers to diagnose and solve sample, grid, ice thickness, collection, and processing issues.
    1. Structural Biology and Molecular Biophysics

    Ligand discrimination and gating in cyclic nucleotide-gated ion channels from apo and partial agonist-bound cryo-EM structures

    Jan Rheinberger et al.
    High resolution SthK channel cryo-EM structures in different ligand-bound states combined with single-channel functional data in the same conditions constrain a gating mechanism for CNG channels.

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