415 results found
    1. Biophysics and Structural Biology

    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. Biophysics and Structural Biology

    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. Biophysics and Structural Biology
    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. Biochemistry and Chemical Biology
    2. Biophysics and Structural Biology

    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. Microbiology and Infectious Disease

    Cryo-electron tomography reveals novel features of a viral RNA replication compartment

    Kenneth J Ertel et al.
    Cryo-electron tomography unveils striking new structural components of positive-strand virus RNA replication compartments, greatly advancing mechanistic insights into the structure, assembly, function and control of these critical complexes.
    1. Biochemistry and Chemical Biology
    2. Biophysics and Structural Biology

    Cryo-EM visualization of the ribosome in termination complex with apo-RF3 and RF1

    Jesper Pallesen et al.
    Cryo-electron microscopy has been used to provide a structural interpretation of the complete action cycle of release factor 3 during translation termination, which includes a coordinated sequence of interactions with a class-I release factor and the ribosome.
    1. Biophysics and Structural Biology

    Cryo-EM structures of the autoinhibited E. coli ATP synthase in three rotational states

    Meghna Sobti et al.
    A molecular model that provides a framework for interpreting the wealth of functional information obtained on the E. coli F-ATP synthase has been generated using cryo-electron microscopy.
    1. Biophysics and Structural Biology

    Model-based local density sharpening of cryo-EM maps

    Arjen J Jakobi et al.
    Local sharpening of cryo-electron microscopy maps using atomic models can increase the interpretability of densities in cases of resolution variation and facilitates model building and refinement.
    1. Biophysics and Structural Biology

    Cryo-EM structure of the Plasmodium falciparum 80S ribosome bound to the anti-protozoan drug emetine

    Wilson Wong et al.
    The molecular mechanism behind how emetine inhibits the ribosome of the human malaria parasite, along with structural details of the complex formed, is revealed at high resolution using cryo-electron microscopy.
    1. Biophysics and Structural Biology
    2. Microbiology and Infectious Disease

    A new topology of the HK97-like fold revealed in Bordetella bacteriophage by cryoEM at 3.5 Å resolution

    Xing Zhang et al.
    Cryo electron microscopy and structure-based mutagenesis reveal that the bacteriophage BPP-1 contains two of the three major recognized viral folds, one of which exhibits a new topology.

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