402 results found
    1. Neuroscience

    Rigid firing sequences undermine spatial memory codes in a neurodegenerative mouse model

    Jingheng Cheng, Daoyun Ji
    In a mouse model of neurodegeneration, hippocampal firing sequences that normally encode spatial memories become disengaged from external space.
    1. Neuroscience

    Position of UNC-13 in the active zone regulates synaptic vesicle release probability and release kinetics

    Keming Zhou et al.
    The precise position of UNC-13 at the active zone near a synapse depends on the N-terminus of the protein, and the C2A domain in particular, and is essential for accelerating neurotransmitter release.
    1. Neuroscience

    Deprivation-related and use-dependent plasticity go hand in hand

    Tamar R Makin et al.
    In individuals with a missing hand, the area of the brain that would otherwise control that hand is recruited by either the remaining hand or the residual limb, depending on the usage preference of the individual.
    1. Cell Biology

    Cytoplasmic translocation of the retinoblastoma protein disrupts sarcomeric organization

    Keigo Araki et al.
    TNF-α treatment induces phosphorylation and cytoplasmic translocation of the retinoblastoma protein, which regulates cytoskeletal organization in skeletal muscle cells.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Fitness benefits in fluoroquinolone-resistant Salmonella Typhi in the absence of antimicrobial pressure

    Stephen Baker et al.
    The major evolutionary routes to drug resistance in Salmonella Typhi are associated with fitness benefits, not fitness costs, implying that prudent antimicrobial use will have no effect as a public health intervention in controlling typhoid fever.
    1. Cell Biology
    2. Developmental Biology

    PI3K/Akt1 signalling specifies foregut precursors by generating regionalized extra-cellular matrix

    S Nahuel Villegas et al.
    A signalling cascade involving PI3K/Akt1 remodels the extra-cellular matrix to achieve atypical cellular responses and control cell fate specification within the embryonic endoderm.
    1. Structural Biology and Molecular Biophysics

    Single molecule FRET reveals pore size and opening mechanism of a mechano-sensitive ion channel

    Yong Wang et al.
    Observation by single molecule FRET of MscL, a prokaryotic mechanosensitive channel, reveals that MscL opens via the helix-tilt model and its pore reaches 2.8 nm in diameter.
    1. Plant Biology

    Brassinosteroids control root epidermal cell fate via direct regulation of a MYB-bHLH-WD40 complex by GSK3-like kinases

    Yinwei Cheng et al.
    Brassinosteroids signal through a pathway involving GSK3-like kinases and the WER-GL3/EGL3-TTG1 transcription factor complex to determine the fate of cells in the root epidermis.
    1. Evolutionary Biology

    Robust and accurate prediction of residue–residue interactions across protein interfaces using evolutionary information

    Sergey Ovchinnikov et al.
    Co-evolving residue pairs in the different components of a protein complex almost always make contact across the protein–protein interface, thus providing powerful restraints for the modeling of protein complexes.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Re-examining how complexin inhibits neurotransmitter release

    Thorsten Trimbuch et al.
    Challenging a widespread model, biophysical and electrophysiological experiments suggest a new mechanism whereby complexins inhibit neurotransmitter release through electrostatic repulsion between their accessory helix and the membranes.

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