113 results found
    1. Cell Biology

    Oscillatory phase separation in giant lipid vesicles induced by transmembrane osmotic differentials

    Kamila Oglęcka et al.
    Spontaneous osmoregulation in giant phospholipid vesicles, which is characterized by oscillations in vesicle size and membrane tension, couples to the compositional degrees of freedom at the membrane surface to produce oscillations in domain texture and induce isothermal phase change.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The brown adipocyte protein CIDEA promotes lipid droplet fusion via a phosphatidic acid-binding amphipathic helix

    David Barneda et al.
    An interaction between the brown fat protein CIDEA and the phospholipid phosphatidic acid is vital for the expansion of intracellular lipid droplets for energy storage.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Ring-like oligomers of Synaptotagmins and related C2 domain proteins

    Maria N Zanetti et al.
    A model for synchronous neurotransmitter release suggests that when not in the presence of calcium ions, Synaptotagmin proteins form ring-like structures between the vesicle and plasma membrane that prevent spontaneous fusion.
    1. Physics of Living Systems

    Mapping out Min protein patterns in fully confined fluidic chambers

    Yaron Caspi, Cees Dekker
    The geometry selection rules of dynamic Min protein patterns are determined in fully confined fluidic chambers, showing that both oscillations and running waves are derivatives of spiral rotations that are established as the majority pattern.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cooperative regulation by G proteins and Na+ of neuronal GIRK2 K+ channels

    Weiwei Wang et al.
    Determining how GIRK2 activity depends on the concentration of Gβγ subunits in lipid membranes at different Na+ concentrations has allowed the Gβγ concentration generated during GABAB activation in neurons to be estimated.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Dynamic clustering of dynamin-amphiphysin helices regulates membrane constriction and fission coupled with GTP hydrolysis

    Tetsuya Takeda et al.
    A new approach using combination of electron microscopy (EM) and high-speed atomic force microscopy (HS-AFM) clearly demonstrates dynamics of dynamin-amphiphysin complexes during membrane constriction and fission suggesting a novel 'clusterase' model of the dynamin-mediated membrane fission.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A molecular tweezer antagonizes seminal amyloids and HIV infection

    Edina Lump et al.
    CLR01 is a small molecule that could be an effective topical microbicide to eliminate HIV (and other enveloped viruses), and to antagonize host-encoded amyloid fibrils that promote HIV infection.
    1. Structural Biology and Molecular Biophysics

    Reconstitution of selective HIV-1 RNA packaging in vitro by membrane-bound Gag assemblies

    Lars-Anders Carlson et al.
    In vitro reconstitution shows how HIV-1 Gag assemblies on membranes can package the RNA genome in the presence of a vast excess of competing cellular RNAs, and that selectivity and immature lattice assembly are deeply intertwined with one another.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The structure of the COPII transport-vesicle coat assembled on membranes

    Giulia Zanetti et al.
    A structure of the complete, membrane bound, COPII coat solved by sub-tomogram averaging reveals the arrangement of all protein subunits on the membrane and suggests a mechanism for coating heterogeneously-shaped carriers.
    1. Microbiology and Infectious Disease

    Nanoscale organization of rotavirus replication machineries

    Yasel Garcés Suárez et al.
    Super-resolution microscopy reveals, at nanometric-scale, the highly organized protein structure of viroplasms, the viral factories used by rotavirus to replicate its genome and assemble new viral particles.

Refine your results by:

Type
Research categories