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    1. Cell Biology
    2. Physics of Living Systems

    Quantitative theory for the diffusive dynamics of liquid condensates

    Lars Hubatsch, Louise M Jawerth ... Christoph A Weber
    Dynamical properties of liquid condensates can be quantitatively assessed by combining phase separation theory and photobleaching, which opens new avenues to understand their physicochemical properties and functioning.
    1. Structural Biology and Molecular Biophysics

    Direct and indirect salt effects on homotypic phase separation

    Matt MacAinsh, Souvik Dey, Huan-Xiang Zhou
    All-atom molecular dynamics simulations revealed both direct and indirect salt effects and led to an amino-acid composition-based predictor for four classes of salt dependence of IDP phase separation.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Dynamic metastable long-living droplets formed by sticker-spacer proteins

    Srivastav Ranganathan, Eugene I Shakhnovich
    Multi-scale simulations reveal a potential, ATP-independent mechanism resulting in the formation of the long-living multi-droplet state by multi-valent, spacer-sticker proteins.
    1. Structural Biology and Molecular Biophysics

    Elucidating ATP’s role as solubilizer of biomolecular aggregate

    Susmita Sarkar, Saurabh Gupta ... Jagannath Mondal
    ATP prevents condensation of aggregation-prone intrinsically disordered protein by modulating its conformation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Interplay between charge distribution and DNA in shaping HP1 paralog phase separation and localization

    Tien M Phan, Young C Kim ... Jeetain Mittal
    Despite highly conserved sequences, subtle variations in HP1 paralog charge distribution influence distinct liquid-liquid phase separation behaviors, ultimately impacting DNA-mediated heterochromatin organization.
    1. Physics of Living Systems

    Charge-driven condensation of RNA and proteins suggests broad role of phase separation in cytoplasmic environments

    Bercem Dutagaci, Grzegorz Nawrocki ... Michael Feig
    Charge complementarity between RNA and proteins may be a universal principle for phase separation in biology without requiring disorder or specific multivalent interactions.
    1. Cell Biology

    Sorting of secretory proteins at the trans-Golgi network by human TGN46

    Pablo Lujan, Carla Garcia-Cabau ... Felix Campelo
    TGN46 is a cargo receptor, with its luminal domain being necessary and sufficient to load soluble secretory proteins into transport carriers for export out of the trans-Golgi network.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Condensation of LINE-1 is critical for retrotransposition

    Srinjoy Sil, Sarah Keegan ... Liam J Holt
    The LINE-1 retrotransposon protein, ORF1p, forms a condensate on RNA that is essential for retrotransposition, and may explain cis-preference through a co-translational assembly mechanism.
    1. Cell Biology
    2. Physics of Living Systems

    Correlative all-optical quantification of mass density and mechanics of subcellular compartments with fluorescence specificity

    Raimund Schlüßler, Kyoohyun Kim ... Jochen Guck
    The combination of optical diffraction tomography and Brillouin microscopy in a single setup enables to quantitatively map the viscoelastic properties of cellular compartments such as aggregates and stress granules in vivo.