728 results found
    1. Neuroscience

    Long ascending propriospinal neurons provide flexible, context-specific control of interlimb coordination

    Amanda M Pocratsky et al.
    Conditional silencing of long ascending propriospinal neurons disrupts interlimb coordination of the fore and hindlimb pairs, but in a highly context-specific manner.
    1. Microbiology and Infectious Disease

    Cryo-EM reveals species-specific components within the Helicobacter pylori Cag type IV secretion system core complex

    Michael J Sheedlo et al.
    The structure of a Type IV secretion system provides a framework for understanding assembly of a protein-injection machine.
    1. Computational and Systems Biology
    2. Neuroscience

    Tuning movement for sensing in an uncertain world

    Chen Chen et al.
    Animals work in a world full of surprises, where using energy to position sensors proportional to the location's expected information avoids the pitfalls of positioning them at the information maxima.
    1. Microbiology and Infectious Disease

    The flagellar motor of Vibrio alginolyticus undergoes major structural remodeling during rotational switching

    Brittany L Carroll et al.
    In situ structures of the flagellar motors genetically docked in CCW and CW rotational states reveal major rearrangement that facilitates rotational switch in Vibrio alginolyticus..
    1. Developmental Biology
    2. Physics of Living Systems

    Size-dependent patterns of cell proliferation and migration in freely-expanding epithelia

    Matthew A Heinrich et al.
    Epithelia exhibit size-dependent growth dynamics caused by a decoupling between boundary and bulk cellular dynamics that enable robust expansion and drive cell cycling, collective migration, and tissue-spanning vortices.
    1. Cell Biology

    The peroxisome counteracts oxidative stresses by suppressing catalase import via Pex14 phosphorylation

    Kanji Okumoto et al.
    H2O2-induced phosphorylation at Ser232 of Pex14 spatiotemporally regulates peroxisomal import of catalase, functioning in counteracting action against oxidative stress by the increase of cytosolic catalase.
    1. Structural Biology and Molecular Biophysics

    The cryo-EM structure of the human uromodulin filament core reveals a unique assembly mechanism

    Jessica J Stanisich et al.
    Cryo-EM reveals that an unexpected domain separation in the zona pellucida module of uromodulin is required for its assembly to filamentous homopolymers that promote pathogen clearance in urinary tract infections.
    1. Stem Cells and Regenerative Medicine

    Novel C1q receptor-mediated signaling controls neural stem cell behavior and neurorepair

    Francisca Benavente et al.
    Complement C1q directly drives the behavior of human neural stem cells via a classical receptor signaling mechanism modulating their capacity for functional integration in vivo.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Positively selected modifications in the pore of TbAQP2 allow pentamidine to enter Trypanosoma brucei

    Ali H Alghamdi et al.
    Study of TbAQP2 adaptations and substrate interactions shows how this aquaglyceroporin enables cellular entry of large antimicrobial agents in Trypanosoma brucei.
    1. Neuroscience

    A flexible framework for simulating and fitting generalized drift-diffusion models

    Maxwell Shinn et al.
    Sophisticated decision-making mechanisms and complex experimental paradigms can be modeled, simulated, and fit to empirical response time data, using a flexible and efficient computational modeling framework.

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