1,141 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, Deryck J Mills ... Janet Vonck
    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
    2. Computational and Systems Biology

    Automated structure refinement of macromolecular assemblies from cryo-EM maps using Rosetta

    Ray Yu-Ruei Wang, Yifan Song ... Frank DiMaio
    Extensive benchmarking reveals that errors made when manually building models into near-atomic-resolution cryoEM density may automatically be corrected using an improved Rosetta-based structure refinement method.
    1. Evolutionary Biology
    2. Structural Biology and Molecular Biophysics

    Structure of a mitochondrial ATP synthase with bound native cardiolipin

    Alexander Mühleip, Sarah E McComas, Alexey Amunts
    The atomic model of a mitochondrial ATP synthase dimer underlies functions of its specific protein constituents and boundary cardiolipins.
    1. Structural Biology and Molecular Biophysics

    Model-based local density sharpening of cryo-EM maps

    Arjen J Jakobi, Matthias Wilmanns, Carsten Sachse
    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. Structural Biology and Molecular Biophysics

    Structure and activation mechanism of the BBSome membrane protein trafficking complex

    Sandeep K Singh, Miao Gui ... Alan Brown
    Two cryo-EM structures of the mammalian BBSome show how the BBSome is recruited to membranes and activated by the GTPase ARL6 prior to binding transmembrane proteins.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of a bacterial ATP synthase

    Hui Guo, Toshiharu Suzuki, John L Rubinstein
    Construction of a first atomic model for an intact bacterial ATP synthase allows for a structural understanding of the roles of individual amino acids in the mechanism of ATP synthesis.
    1. Structural Biology and Molecular Biophysics

    Mechanism of completion of peptidyltransferase centre assembly in eukaryotes

    Vasileios Kargas, Pablo Castro-Hartmann ... Alan John Warren
    Cryo-EM reveals how the central functional site of the ribosome is assembled and provides a framework to interpret the consequences of mutations linked to leukaemia-associated ribosomopathies.
    1. Structural Biology and Molecular Biophysics

    A Bayesian approach to single-particle electron cryo-tomography in RELION-4.0

    Jasenko Zivanov, Joaquín Otón ... Sjors HW Scheres
    New functionality in RELION-4.0 allows convenient structure determination from cryo electron tomography data to resolutions sufficient for de novo atomic modelling.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures demonstrate human IMPDH2 filament assembly tunes allosteric regulation

    Matthew C Johnson, Justin M Kollman
    Assembly of the human enzyme inosine monophosphate dehydrogenase 2 into filaments promotes substrate-dependent resistance to feedback inhibition by downstream products, promoting increased flux during proliferative states.
    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, Xiaolong Gao ... Crina M Nimigean
    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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