719 results found
    1. Cell Biology

    Proteostasis collapse, a hallmark of aging, hinders the chaperone-Start network and arrests cells in G1

    David F Moreno et al.
    Cells accumulate damaged proteins during aging and, by compromising the function of chaperones in folding newly synthesized G1 cyclins, proteostasis breakdown inhibits cell-cycle entry and drives yeast cells into senescence.
    1. Neuroscience

    Increased expression of heme-binding protein 1 early in Alzheimer's disease is linked to neurotoxicity

    Oleksandr Yagensky et al.
    Increased levels of brain Hebp1 starting from the presymptomatic stage of Alzheimer’s disease contributes to progressive neuronal loss by triggering mitochondrial-dependent apoptosis in neurons exposed to elevated heme.
    1. Genetics and Genomics
    2. Plant Biology

    Epigenetic silencing of a multifunctional plant stress regulator

    Mark Zander et al.
    Interplay between histone demethylation and chromatin remodeling shapes the chromatin environment of the essential stress regulator ETHYLENE-INSENSITIVE2.
    1. Developmental Biology

    Notch signalling maintains Hedgehog responsiveness via a Gli-dependent mechanism during spinal cord patterning in zebrafish

    Craig T Jacobs, Peng Huang
    Genetic analyses combining photoconvertible cell signalling reporters with gain- and loss-of function manipulations reveal a novel role for Notch signalling in controlling Hedgehog response in neural progenitor cells.
    1. Neuroscience

    TRPC3 is a major contributor to functional heterogeneity of cerebellar Purkinje cells

    Bin Wu et al.
    Purkinje cells feature molecular heterogeneity that introduces differentiation in physiological properties between zebrin-identified cerebellar modules and thereby underlies the differential control on sensorimotor integration.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A genetic selection reveals functional metastable structures embedded in a toxin-encoding mRNA

    Sara Masachis et al.
    A genetic selection of toxicity suppressors coupled to high-throughput sequencing has captured metastable RNA structures that co-transcriptionally inhibit the translation of a bacterial toxin.
    1. Cell Biology
    2. Developmental Biology

    Notch signaling restricts FGF pathway activation in parapineal cells to promote their collective migration

    Lu Wei et al.
    Notch signaling controls the collective migration of parapineal cells through its capacity to restrict FGF pathway activation to a few leading cells.
    1. Cell Biology

    Evidence that a positive feedback loop drives centrosome maturation in fly embryos

    Ines Alvarez-Rodrigo et al.
    Polo kinase recruitment by the protein Spd-2 to the pericentriolar scaffold is a key element of the positive feedback loop which drives the expansion of the mitotic centrosomes in flies.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    An engineered monomer binding-protein for α-synuclein efficiently inhibits the proliferation of amyloid fibrils

    Emil Dandanell Agerschou et al.
    The high affinity α-synuclein-monomer binder AS69 converts into a strong sub-stoichiometric inhibitor of nucleation processes upon formation of the AS69-α-synuclein complex, achieving reduced aggregation in vitro and in vivo.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Correlated evolution between repertoire size and song plasticity predicts that sexual selection on song promotes open-ended learning

    Cristina M Robinson et al.
    A longer birdsong-learning window evolves in response to sexual selection for song complexity and is associated with faster evolution of song performance characteristics.

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