2,335 results found
    1. Structural Biology and Molecular Biophysics

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

    Alf Honigmann et al.
    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. 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. Cell Biology

    Chronic optogenetic induction of stress granules is cytotoxic and reveals the evolution of ALS-FTD pathology

    Peipei Zhang et al.
    OptoGranules reveal the function of G3BP1 as a stress granule scaffold and demonstrate that protracted stress granule assembly is sufficient to drive neurodegeneration and the evolution of ALS-FTD pathology.
    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

    Pre-transition effects mediate forces of assembly between transmembrane proteins

    Shachi Katira et al.
    A general mechanism for how powerful forces of assembly and protein mobility can emerge from phase transitions is established.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Nucleolar dynamics and interactions with nucleoplasm in living cells

    Christina M Caragine et al.
    The nucleoplasm surrounding nucleoli in living cells plays a key role in nucleolar dynamics and shape fluctuations in vivo.
    1. Structural Biology and Molecular Biophysics

    Nucleophosmin integrates within the nucleolus via multi-modal interactions with proteins displaying R-rich linear motifs and rRNA

    Diana M Mitrea et al.
    Nucleolar protein localization involves the phase separation within the nucleolar matrix via three types of multivalent features: acidic tracts, nucleic acid binding domains and arginine-rich low complexity sequences.
    1. Immunology and Inflammation

    Protein sorting by lipid phase-like domains supports emergent signaling function in B lymphocyte plasma membranes

    Matthew B Stone et al.
    Clustering the B cell receptor generates a membrane domain analogous to the liquid-ordered phase, localizing proteins involved in early receptor activation.
    1. Cell Biology
    2. Neuroscience

    Neurotrophins induce fission of mitochondria along embryonic sensory axons

    Lorena Armijo-Weingart et al.
    Induction of the fission of mitochondria-populating sensory axons is shown to be a novel biological action of neurotrophins.
    1. Neuroscience

    Target-specific membrane potential dynamics of neocortical projection neurons during goal-directed behavior

    Takayuki Yamashita, Carl CH Petersen
    A learning-induced, motor-related, projection-specific signal from S1 to S2 accompanies reward-based-learning of a goal-directed sensorimotor transformation of whisker sensation into licking motor output.

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