3,167 results found
    1. Neuroscience

    Acetic acid activates distinct taste pathways in Drosophila to elicit opposing, state-dependent feeding responses

    Anita V Devineni et al.
    A single taste input, acetic acid, elicits opposing behavioral outputs depending on a fly's hunger state.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Diverse functions of homologous actin isoforms are defined by their nucleotide, rather than their amino acid sequence

    Pavan Vedula et al.
    CRISPR/Cas9 gene editing in mice reveals that diverse functions of actin isoforms are defined by their nucleotide, rather than their amino acid sequence, suggesting a novel mechanism of nucleotide-dependent protein regulation in eukaryotic genomes.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    A common bacterial metabolite elicits prion-based bypass of glucose repression

    David M Garcia et al.
    Activity-guided fractionation identifies the first bacterial metabolite that potently induces a prion in nature.
    1. Ecology

    Dynamic metabolic exchange governs a marine algal-bacterial interaction

    Einat Segev et al.
    Physical and chemical interactions with bacteria influence the life and death of Emiliania huxleyi, a bloom-forming micro-alga important in global biogeochemical cycles.
    1. Plant Biology

    Homeostasis of branched-chain amino acids is critical for the activity of TOR signaling in Arabidopsis

    Pengfei Cao et al.
    Despite BCAAs being de novo-synthesized in chloroplasts, TOR activation by BCAAs is conserved in plants and triggers a re-organization of actin and actin-associated endomembranes.
    1. Ecology
    2. Microbiology and Infectious Disease

    The diversity and function of sourdough starter microbiomes

    Elizabeth A Landis et al.
    In the most comprehensive survey of sourdough starter biodiversity, this work identifies processes that control the diversity and function of sourdough microbiomes at a continental scale.
    1. Structural Biology and Molecular Biophysics

    Acidic C-terminal domains autoregulate the RNA chaperone Hfq

    Andrew Santiago-Frangos et al.
    Modeling and biophysics show that the unstructured acidic tail of the Sm protein Hfq mimics nucleic acid to auto inhibit its chaperone activity, preventing Hfq from being sequestered by inauthentic substrates and providing insight into the evolution of Hfq's chaperone function among bacterial genera.
    1. Microbiology and Infectious Disease

    Single cell, super-resolution imaging reveals an acid pH-dependent conformational switch in SsrB regulates SPI-2

    Andrew Tze Fui Liew et al.
    Inside the acidic vacuole, expression, DNA binding and DNA binding affinity of the Salmonella regulator SsrB is stimulated by acid pH.
    1. Structural Biology and Molecular Biophysics

    Nucleophosmin integrates within the nucleolus via multi-modal interactions with proteins displaying R-rich linear motifs and rRNA

    Diana M Mitrea et al.
    Nucleolar protein localization involves the phase separation within the nucleolar matrix via three types of multivalent features: acidic tracts, nucleic acid binding domains and arginine-rich low complexity sequences.
    1. Cell Biology
    2. Genetics and Genomics

    Cytoprotection by a naturally occurring variant of ATP5G1 in Arctic ground squirrel neural progenitor cells

    Neel S Singhal et al.
    A genetic basis underlying cell resilience against metabolic stress in cells of a hibernator, Arctic ground squirrels, has been discovered.

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