54 results found
    1. Microbiology and Infectious Disease

    MreB filaments align along greatest principal membrane curvature to orient cell wall synthesis

    Saman Hussain, Carl N Wivagg ... Ethan C Garner
    MreB filaments bind, orient, and move along the direction of greatest membrane curvature, thus orienting the insertion of new glycan strands around the cell circumference in a manner that may help establish and maintain rod shape.
    1. Structural Biology and Molecular Biophysics

    Robust membrane protein tweezers reveal the folding speed limit of helical membrane proteins

    Seoyoon Kim, Daehyo Lee ... Duyoung Min
    An exceedingly low speed limit was estimated for a helical hairpin formation by analyzing hours-long, incessant structural transitions.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Glypican-1 drives unconventional secretion of fibroblast growth factor 2

    Carola Sparn, Eleni Dimou ... Walter Nickel
    Identification of a heparan sulfate proteoglycan with a dedicated function in unconventional protein secretion reveals an intimate relationship between fibroblast growth factor 2 and Glypican-1 in cancer biology.
    1. Structural Biology and Molecular Biophysics

    Molecular basis of signaling specificity between GIRK channels and GPCRs

    Kouki K Touhara, Roderick MacKinnon
    A single kinetic step in the G protein activation cycle determines whether a G protein-coupled receptor activates G protein-gated K+ channels or not.
    1. Structural Biology and Molecular Biophysics

    Single molecule FRET reveals pore size and opening mechanism of a mechano-sensitive ion channel

    Yong Wang, Yanxin Liu ... Paul R Selvin
    Observation by single molecule FRET of MscL, a prokaryotic mechanosensitive channel, reveals that MscL opens via the helix-tilt model and its pore reaches 2.8 nm in diameter.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Oligomerization of p62 allows for selection of ubiquitinated cargo and isolation membrane during selective autophagy

    Bettina Wurzer, Gabriele Zaffagnini ... Sascha Martens
    Oligomerization of p62/SQSTM1 generates high avidity binding regions that enable it to spatially select for concentrated ubiquitin and ATG8-family proteins.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    TMEM120A contains a specific coenzyme A-binding site and might not mediate poking- or stretch-induced channel activities in cells

    Yao Rong, Jinghui Jiang ... Zhenfeng Liu
    Electrophysiological and structural characterizations reveal that a previously proposed ion channel responsible for sensing mechanical pain is insensitive to poking or stretching stimuli for conducting ions and may serve as a coenzyme A-binding protein instead.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational dynamics of the nucleotide binding domains and the power stroke of a heterodimeric ABC transporter

    Smriti Mishra, Brandy Verhalen ... Hassane S Mchaourab
    The conformational cycle of an ABC heterodimeric transporter reveals a divergence in the structural mechanism of ABC exporters.
    1. Physics of Living Systems

    Measuring ligand-cell surface receptor affinities with axial line-scanning fluorescence correlation spectroscopy

    Antonia Franziska Eckert, Peng Gao ... Gerd Ulrich Nienhaus
    A robust fluorescence microscopy-based data acquisition and analysis framework affords the precise measurement of cell surface receptor affinities toward their cognate ligands and their densities in live cells/tissues.

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