152 results found
    1. Neuroscience

    Dismantling the Papez circuit for memory in rats

    Seralynne D Vann
    In contrast to current models, inputs from midbrain limbic structures, but not from the hippocampus, are necessary for mammillary body contributions to memory.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Cytoplasmic dynein crosslinks and slides anti-parallel microtubules using its two motor domains

    Marvin E Tanenbaum et al.
    The motor domains of dynein are sufficient to crosslink microtubules and slide them antiparallel to each other.
    1. Structural Biology and Molecular Biophysics

    CO2 directly modulates connexin 26 by formation of carbamate bridges between subunits

    Louise Meigh et al.
    A CO2 receptor and a mechanism for the CO2-mediated opening of gap junction hemichannels have been identified.
    1. Cell Biology

    USP13 antagonizes gp78 to maintain functionality of a chaperone in ER-associated degradation

    Yanfen Liu et al.
    A deubiquitinase antagonizes the activity of an associated E3 ligase to prevent uncontrolled ubiquitination of a degradation machinery protein and thus maintain its functionality in protein quality control at the endoplasmic reticulum.
    1. Cell Biology

    p97-dependent retrotranslocation and proteolytic processing govern formation of active Nrf1 upon proteasome inhibition

    Senthil K Radhakrishnan et al.
    The enzyme p97/VCP regulates the activity of the transcription factor Nrf1 to promote increased transcription of genes that encode proteasome subunits following inhibition of the proteasome.
    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. Cell Biology
    2. Neuroscience

    Complete morphologies of basal forebrain cholinergic neurons in the mouse

    Hao Wu et al.
    The first complete 3D structures of mouse cholinergic neurons reveal the length and complexity of their axons, while calculations suggest that equivalent axons in the human brain are approximately than 100 meters long.
    1. Neuroscience

    Monosynaptic premotor circuit tracing reveals neural substrates for oro-motor coordination

    Edward Stanek IV et al.
    Retrograde tracing of the neural circuits that control movement of the jaw and tongue reveals how shared premotor neurons help to ensure coordinated muscle activity.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Single-molecule tracking in live cells reveals distinct target-search strategies of transcription factors in the nucleus

    Ignacio Izeddin et al.
    While the transcription factor c-Myc explores the space in the nucleus in an unrestricted manner, the elongation factor P-TEFb's sampling of the nucleus is constrained to a complex domain with fractal characteristics.
    1. Neuroscience

    Laser ablation of Dbx1 neurons in the pre-Bötzinger complex stops inspiratory rhythm and impairs output in neonatal mice

    Xueying Wang et al.
    Laser-ablating neurons of a single genetic class reveals that Dbx1-derived interneurons comprise core respiratory rhythmogenic and premotor circuits and provides quantitative cellular parameters that govern network functionality

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