195 results found
    1. Biochemistry and Chemical Biology

    HspB8 prevents aberrant phase transitions of FUS by chaperoning its folded RNA-binding domain

    Edgar E Boczek et al.
    Quantitative time-resolved crosslinking mass spectrometry is developed to monitor protein interactions and dynamics inside molecular condensates and used to identify misfolding of the RNA-binding domain of FUS as a key driver of condensate-aging.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for the disaggregase activity and regulation of Hsp104

    Alexander Heuck et al.
    Protein disaggregases employ two mechanically-linked ATPase rings that are under steric control by a wrapped-around coiled-coil belt.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    An unfolded protein-induced conformational switch activates mammalian IRE1

    G Elif Karagöz et al.
    ER-stress sensing mechanism of the unfolded protein response sensor/transducer IRE1 is conserved from yeast to mammals, where in mammals, unfolded protein binding to IRE1's ER lumenal domain is coupled to its oligomerization and activation through an allosteric conformational change.
    1. Biochemistry and Chemical Biology

    Chaperones: Aggregation in the spotlight

    Zihao Wang et al.
    New findings clarify apparently conflicting results about how molecular agents that preserve protein integrity prevent harmful, dense aggregates from forming.
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    1. Neuroscience

    Presenilin/γ-secretase-dependent EphA3 processing mediates axon elongation through non-muscle myosin IIA

    Míriam Javier-Torrent et al.
    EphA signaling plays dual opposite roles on axon dynamics in neurons, so it inhibits and promotes axon growth through ligand binding and receptor processing, respectively.
    1. Cancer Biology
    2. Cell Biology

    Bim escapes displacement by BH3-mimetic anti-cancer drugs by double-bolt locking both Bcl-XL and Bcl-2

    Qian Liu et al.
    The pro-apoptotic BH3-protein Bim contains two distinct binding sites for anti-apoptotic proteins that together confer resistance of Bim/Bcl-2 and Bim/Bcl-XL complexes to BH3-mimetic drugs under development for use in humans.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The guide sRNA sequence determines the activity level of box C/D RNPs

    Andrea Graziadei et al.
    Integrative structural biology reveals a conformational equilibrium in the Box C/D methylation enzyme that regulates the extent of site-specific 2'-O-rRNA methylation in dependence of the RNA sequence.
    1. Microbiology and Infectious Disease

    Coordination of humoral immune factors dictates compatibility between Schistosoma mansoni and Biomphalaria glabrata

    Hongyu Li et al.
    A coordinated humoral immune response that includes recognition, effector and cytotoxic factors engages the cell-mediated immune response to defend a snail against infection by schistosome parasites.
    1. Microbiology and Infectious Disease

    High-resolution mapping of fluoroquinolones in TB rabbit lesions reveals specific distribution in immune cell types

    Landry Blanc et al.
    Penetration of the fluoroquinolones in tuberculosis lesions is heterogeneous even in fully cellular areas, is driven by macrophage content and decreases as the distance from lesion outer rim increases.
    1. Microbiology and Infectious Disease

    Chromatin mapping identifies BasR, a key regulator of bacteria-triggered production of fungal secondary metabolites

    Juliane Fischer et al.
    Genome-wide chromatin mapping during bacterial-fungal cocultivation identifies the Myb-like transcription factor BasR as the major regulatory node of bacteria-triggered production of fungal secondary metabolites.

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