74 results found
    1. Biochemistry and Chemical Biology

    Control of the polyamine biosynthesis pathway by G2-quadruplexes

    Helen Louise Lightfoot, Timo Hagen ... Jonathan Hall
    An ensemble of conserved G2-quadruplex structures in the untranslated regions of messenger RNAs from genes in the polyamine bioysynthesis pathway sense polyamine levels and regulate polyamine synthesis in cells.
    1. Biochemistry and Chemical Biology

    Determining composition of micron-scale protein deposits in neurodegenerative disease by spatially targeted optical microproteomics

    Kevin C Hadley, Rishi Rakhit ... Avijit Chakrabartty
    STOMP is a technique that can determine the proteomic composition of any feature that is identifiable by laser scanning microscopy and is at least one cubic micron in size.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Inhibition by small-molecule ligands of formation of amyloid fibrils of an immunoglobulin light chain variable domain

    Boris Brumshtein, Shannon R Esswein ... David S Eisenberg
    Ligands that bind dimers of light chain variable domains inhibit the formation of amyloid fibrils.
    1. Neuroscience

    A native interactor scaffolds and stabilizes toxic ATAXIN-1 oligomers in SCA1

    Cristian A Lasagna-Reeves, Maxime WC Rousseaux ... Huda Y Zoghbi
    Studies in a mouse model of spinocerebellar ataxia type 1 show that a protein called capicua stabilizes toxic ataxin-1 oligomers offering a possible explanation for regional patterns of neurodegeneration.
    1. Genetics and Genomics

    The dual role of amyloid-β-sheet sequences in the cell surface properties of FLO11-encoded flocculins in Saccharomyces cerevisiae

    Clara Bouyx, Marion Schiavone ... Jean Marie François
    The role of amyloid-β-aggregation sequence and of the various domains in the physiological function of the FLO11-encoded adhesin in the yeast Saccharomyces cerevisiae are disclosed in this report.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Time-resolved studies define the nature of toxic IAPP intermediates, providing insight for anti-amyloidosis therapeutics

    Andisheh Abedini, Annette Plesner ... Ann Marie Schmidt
    Toxic IAPP intermediates have some molecular features that are similar to, and others that are distinct from, toxic species reported for other amyloidogenic polypeptides.
    1. Cell Biology
    2. Developmental Biology

    Dual roles for ATP in the regulation of phase separated protein aggregates in Xenopus oocyte nucleoli

    Michael H Hayes, Elizabeth H Peuchen ... Daniel L Weeks
    The equilibrium between solubility and aggregation of proteins in the nucleus is controlled by co-aggregates like RNA and the action of ATP as both an energy source and a destabilizing chemical agent.
    1. Cell Biology

    Novel repertoire of tau biosensors to monitor pathological tau transformation and seeding activity in living cells

    Erika Cecon, Atsuro Oishi ... Ralf Jockers
    Development of nanoluciferase complementation-based tau biosensors to detect tau conformational change and oligomerization in living cells in high-throughput assays.
    1. Neuroscience

    Constitutively active STING causes neuroinflammation and degeneration of dopaminergic neurons in mice

    Eva M Szego, Laura Malz ... Hella Luksch
    Constitutive activation of an innate immunity response in mouse brain causes degeneration of dopaminergic neurons, suggesting novel targets for potentially neuroprotective strategies.
    1. Cell Biology

    Impairment of lipid homeostasis causes lysosomal accumulation of endogenous protein aggregates through ESCRT disruption

    John Yong, Jacqueline E Villalta ... Calvin H Jan
    Genome-wide CRISPRi screens and proteome profiling of lysosomes link lipid dysregulation to ESCRT disruption and proteostasis defect.

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