786 results found
    1. Structural Biology and Molecular Biophysics

    A lipid bound actin meshwork organizes liquid phase separation in model membranes

    Alf Honigmann, Sina Sadeghi ... Richard Vink
    A combination of imaging experiments and computer simulations on a model lipid membrane integrate the 'picket fence' and 'raft' models, and suggest that the interplay between actin binding, lipid phase separation and curvature compartmentalize the membrane.
    1. Structural Biology and Molecular Biophysics

    Cadherin clusters stabilized by a combination of specific and nonspecific cis-interactions

    Connor J Thompson, Zhaoqian Su ... Daniel K Schwartz
    A combined experimental and computational approach was developed to understand lateral interactions between membrane-bound proteins and used to quantify the contributions of specific and non-specific interactions to cadherin cis-binding kinetics.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Active site geometry stabilization of a presenilin homolog by the lipid bilayer promotes intramembrane proteolysis

    Lukas P Feilen, Shu-Yu Chen ... Harald Steiner
    Biochemical studies in combination with computational modeling and molecular dynamics simulations reveal that the lipid bilayer promotes intramembrane proteolysis by stabilizing the enzyme-substrate complex and the protease active site.
    1. Biochemistry and Chemical Biology

    A non-linear system patterns Rab5 GTPase on the membrane

    Alice Cezanne, Janelle Lauer ... Marino Zerial
    Both protein-protein and protein-lipid interactions are essential for Rab5 symmetry breaking at the early endosome.
    1. Biochemistry and Chemical Biology

    Real-time monitoring of peptidoglycan synthesis by membrane-reconstituted penicillin-binding proteins

    Víctor M Hernández-Rocamora, Natalia Baranova ... Waldemar Vollmer
    The synthesis of bacterial cell wall peptidoglycan was reconstituted in lipid bilayers and detected by a novel Förster resonance energy transfer real-time assay.
    1. Physics of Living Systems
    2. Cell Biology

    Phase transitions of multivalent proteins can promote clustering of membrane receptors

    Sudeep Banjade, Michael K Rosen
    A new and general mechanism describes the organization of membrane proteins and their cytoplasmic ligands into micrometer-scale clusters, based on polymerization and concomitant phase separation of multivalent proteins.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Single-molecule force spectroscopy of protein-membrane interactions

    Lu Ma, Yiying Cai ... Yongli Zhang
    A high-resolution method to quantify interactions between lipid bilayers and single proteins under controlled load is presented and applied to key proteins involved in membrane fusion and formation and maintenance of membrane contact sites.
    1. Biochemistry and Chemical Biology

    Control of lipid domain organization by a biomimetic contractile actomyosin cortex

    Sven Kenjiro Vogel, Ferdinand Greiss ... Petra Schwille
    Building on previous work (Vogel et al., 2013b), it is shown that myosin-driven actin filament rearrangements actively move, split or fuse individual lipid domains and change their overall shape.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Synergistic phase separation of two pathways promotes integrin clustering and nascent adhesion formation

    Lindsay B Case, Milagros De Pasquale ... Michael K Rosen
    Biochemical and cell biological data suggest a model of nascent integrin adhesion complex formation based on synergistic phase separation of pathways surrounding the focal adhesion kinase (FAK) and the adaptor protein p130Cas.
    1. Structural Biology and Molecular Biophysics

    Nanoscopic anatomy of dynamic multi-protein complexes at membranes resolved by graphene-induced energy transfer

    Nadia Füllbrunn, Zehao Li ... Changjiang You
    The axial organization and dynamics of the HOPS complex at membrane surface are resolved by graphene-induced energy transfer with subnanometer resolution.

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