1,764 results found
    1. Cell Biology
    2. Developmental Biology

    Protein aggregates are associated with replicative aging without compromising protein quality control

    Juha Saarikangas, Yves Barral
    The aging lineage of budding yeast is differentiated by an early-appearing protein deposit that promotes protein quality control.
    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 et al.
    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

    The ER Stress Surveillance (ERSU) pathway regulates daughter cell ER protein aggregate inheritance

    Francisco J Piña, Maho Niwa
    Endoplasmic reticulum (ER) inheritance regulation during ER stress controls the transmission of misfolded ER proteins from mother to daughter cell in budding yeast.
    1. Cell Biology
    2. Developmental Biology

    Myofibril diameter is set by a finely tuned mechanism of protein oligomerization in Drosophila

    Nicanor González-Morales et al.
    Myofibril diameter is set by the controlled oligomerization of the PDZ and LIM domain protein Zasp in Drosophila.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Intrinsically aggregation-prone proteins form amyloid-like aggregates and contribute to tissue aging in Caenorhabditis elegans

    Chaolie Huang et al.
    Age-dependent protein aggregation closely resembles protein aggregation associated with neurodegenerative diseases and other amyloidoses, and initiates early functional decline in different tissues.
    1. Physics of Living Systems

    Spatial control of irreversible protein aggregation

    Christoph Weber et al.
    A theoretical basis for the spatial regulation of protein aggregation shows how aggregates can partition preferentially into intracellular liquid compartments.
    1. Cell Biology
    2. Neuroscience

    Phagocytic glia are obligatory intermediates in transmission of mutant huntingtin aggregates across neuronal synapses

    Kirby M Donnelly et al.
    Prion-like transfer of mutant huntingtin aggregates from presynaptic to postsynaptic neurons is enhanced by neuronal silencing and requires passage through the cytoplasm of Draper-expressing phagocytic glia in adult Drosophila brains.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    TRiC’s tricks inhibit huntingtin aggregation

    Sarah H Shahmoradian et al.
    Cryo-electron tomography reveals how a chaperone protein called TRiC reduces the ability of pathogenic mutant huntingtin proteins to form aggregates.
    1. Biochemistry and Chemical Biology

    Adenosine diphosphate restricts the protein remodeling activity of the Hsp104 chaperone to Hsp70 assisted disaggregation

    Agnieszka Kłosowska et al.
    Hsp70 chaperone provides Hsp104 with high efficiency in disaggregation and specificity towards aggregated substrates at the, otherwise limiting, cellular concentrations of adenine nucleotides.
    1. Microbiology and Infectious Disease

    Prion propagation can occur in a prokaryote and requires the ClpB chaperone

    Andy H Yuan et al.
    The bacterium Escherichia coli possesses a permissive cytoplasmic environment and the requisite molecular machinery to support the propagation of prions.

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