375 results found
    1. Structural Biology and Molecular Biophysics

    Atomic model of the F420-reducing [NiFe] hydrogenase by electron cryo-microscopy using a direct electron detector

    Matteo Allegretti et al.
    The structure of a large enzyme complex involved in methanogenesis was determined at high resolution by electron cryo-microscopy.
    1. Structural Biology and Molecular Biophysics

    De novo modeling of the F420-reducing [NiFe]-hydrogenase from a methanogenic archaeon by cryo-electron microscopy

    Deryck J Mills et al.
    The structure of a large hydrogenase complex involved in the production of methane by microbes has been determined with cryo-electron microscopy.
    1. Structural Biology and Molecular Biophysics

    Ion Channels: Poring over furrows

    Skylar ID Fisher, H Criss Hartzell
    Cryo-electron microscopy reveals the structure of a chloride channel that is closely related to a protein that transports lipids.
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    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. 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

    Fidaxomicin jams Mycobacterium tuberculosis RNA polymerase motions needed for initiation via RbpA contacts

    Hande Boyaci et al.
    Cryo-electron microscopy structures show how the clinically used antimicrobial fidaxomicin binds and inhibits Mycobacterium tuberculosis RNA polymerase by acting like a doorstop to jam the enzyme in an open conformation via the general transcription factor RbpA.
    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 et al.
    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

    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.

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