Browse the search results

Page 2 of 320
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of transcription arrest by coliphage HK022 Nun in an Escherichia coli RNA polymerase elongation complex

    Jin Young Kang et al.
    Cryo-electron microscopy structures show how coliphage HK022 Nun blocks Escherichia coli RNA polymerase translocation by mediating multiple interactions between the RNA polymerase and nucleic acids.
    1. Structural Biology and Molecular Biophysics

    Conserved mechanisms of microtubule-stimulated ADP release, ATP binding, and force generation in transport kinesins

    Joseph Atherton et al.
    Cryo-electron microscopy reconstructions of two microtubule-bound transport kinesins at 7 Å resolution reveal how microtubule track binding stimulates ADP release, primes the active site for ATP binding and enables force generation.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Competing scaffolding proteins determine capsid size during mobilization of Staphylococcus aureus pathogenicity islands

    Altaira D Dearborn et al.
    Cryo-electron microscopy and genetics show how Staphylococcus aureus pathogenicity island 1 hijacks the assembly pathway of a helper phage for its own propagation.
    1. Cell Biology

    Recruitment dynamics of ESCRT-III and Vps4 to endosomes and implications for reverse membrane budding

    Manuel Alonso Y Adell et al.
    Quantitative 3D lattice light sheet microscopy of unperturbed cells combined with electron tomography and acute loss of function experiments reveals how dynamic ESCRT-III/Vps4 assemblies succeed in reverse membrane budding on endosomes.
    1. Human Biology and Medicine
    2. Microbiology and Infectious Disease

    Mechanisms of virus dissemination in bone marrow of HIV-1–infected humanized BLT mice

    Mark S Ladinsky et al.
    Large-volume light microscopy combined with higher-resolution electron tomography revealed the spatial distribution of virus-producing cells and highlighted mechanisms of HIV-1 dissemination in bone marrow from a small animal model.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    E. coli TraR allosterically regulates transcription initiation by altering RNA polymerase conformation

    James Chen et al.
    Cryo-electron microscopy structures, combined with biochemical experiments, show how the E. coli F element-encoded TraR protein regulates transcription initiation by altering RNA polymerase conformation and conformational heterogeneity.
    1. Neuroscience

    SynEM, automated synapse detection for connectomics

    Benedikt Staffler et al.
    The detection of chemical synapses in 3-dimensional electron microscopy data has been automated such that synapses in large-scale connectivity maps of the cerebral cortex, connectomes, can be charted without the need for human interaction.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    3.3-Å resolution cryo-EM structure of human ribonucleotide reductase with substrate and allosteric regulators bound

    Edward J Brignole et al.
    Cryo-electron microscopy structures of human ribonucleotide reductase reveal molecular details of substrate selection and allosteric inhibition through assembly of its large subunit into a ring that excludes its small subunit.
    1. Cell Biology
    2. Neuroscience

    Mitochondrial support of persistent presynaptic vesicle mobilization with age-dependent synaptic growth after LTP

    Heather L Smith et al.
    Three-dimensional electron microscopy (3DEM) demonstrates the dependence on presynaptic mitochondria for vesicle mobilization as dendritic spines are silently added at P15 or synapses are silently enlarged in adults after long-term potentiation.
    1. Structural Biology and Molecular Biophysics

    Structural analyses at pseudo atomic resolution of Chikungunya virus and antibodies show mechanisms of neutralization

    Siyang Sun et al.
    Electron cryo-microscopy has been used to determine the structure of Chikungunya virus-like particles and to provide new insights into their interactions with four different antibodies.