Browse our latest Structural Biology and Molecular Biophysics articles

Page 116 of 179
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Energetics and conformational pathways of functional rotation in the multidrug transporter AcrB

    Yasuhiro Matsunaga, Tsutomu Yamane ... Akinori Kidera
    High-performance computing simulations reveal how two remote sites in the multidrug transporter AcrB work together for drug extrusion using the proton-motive force.
    1. Structural Biology and Molecular Biophysics

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

    Hande Boyaci, James Chen ... Elizabeth A Campbell
    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

    Architecture of the human mTORC2 core complex

    Edward Stuttfeld, Christopher HS Aylett ... Nenad Ban
    The structure of the mammalian target of rapamycin complex 2 (mTORC2) reveals the architecture of the complex and explains the structural basis of rapamycin insensitivity.
    1. Structural Biology and Molecular Biophysics

    Structural basis of ribosomal peptide macrocyclization in plants

    Joel Haywood, Jason W Schmidberger ... Joshua S Mylne
    The first crystal structure of an active plant asparaginyl endopeptidase reveals a tetrahedral intermediate state in its active site, which may help to explain why these enzymes have been independently recruited to perform peptide macrocyclization.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Bipolar filaments of human nonmuscle myosin 2-A and 2-B have distinct motile and mechanical properties

    Luca Melli, Neil Billington ... James R Sellers
    Individual nonmuscle myosin 2 filaments in cells may differ their mechanical and kinetic properties depending on the myosin paralog composition giving the cells a mechanism for fine tuning the output of a given nonmuscle myosin filament.
    1. Structural Biology and Molecular Biophysics

    Spatial structure of disordered proteins dictates conductance and selectivity in nuclear pore complex mimics

    Adithya N Ananth, Ankur Mishra ... Cees Dekker
    Biomimetic nanopores reveal that the sequence-dependent spatial distribution of intrinsically disordered proteins plays a crucial role in establishing the selective permeability barrier of the nuclear pore complex.
    1. Structural Biology and Molecular Biophysics

    Molecular Chaperones: Confirmation for conformational selection

    Yajun Jiang, Charalampos G Kalodimos
    NMR studies settle part of a long-standing debate about the mechanism used by the Hsp70 chaperone to recognize substrates.
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    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, Kuang-Lei Tsai ... Francisco Asturias
    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. Structural Biology and Molecular Biophysics

    Conserved conformational selection mechanism of Hsp70 chaperone-substrate interactions

    Ashok Sekhar, Algirdas Velyvis ... Lewis E Kay
    NMR-based flux measurements show that both bacterial and human Hsp70 chaperones interact with helical, as well as sheet substrates predominantly through a conformational selection mechanism.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Autocatalytic microtubule nucleation determines the size and mass of Xenopus laevis egg extract spindles

    Franziska Decker, David Oriola ... Jan Brugués
    Quantitative microscopy and theory show that the size of Xenopus laevis egg extract spindles is controlled by a spatially-regulated autocatalytic growth mechanism driven by microtubule-stimulated microtubule nucleation.