3,843 results found
    1. Neuroscience

    Flexible motor sequence generation during stereotyped escape responses

    Yuan Wang et al.
    Time-ordered and flexible motor sequences in C.elegans are generated by combining an excitatory feedforward coupling and mutual inhibitions between neurons in different functional modules.
    1. Cell Biology

    Role of competition between polarity sites in establishing a unique front

    Chi-Fang Wu et al.
    In budding yeast, nascent polarity sites engage in a winner-takes-all contest to determine a single front.
    1. Cell Biology

    Optogenetic control of PRC1 reveals its role in chromosome alignment on the spindle by overlap length-dependent forces

    Mihaela Jagrić et al.
    Optogenetic experiments show that bridging microtubules buffer chromosome movements and promote their alignment through forces transferred to the associated kinetochore fibers, which rely on precise regulation of the overlap region.
    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. Structural Biology and Molecular Biophysics

    Conserved mechanisms of microtubule-stimulated ADP release, ATP binding, and force generation in transport kinesins

    Joseph Atherton et al.
    Cryo-electron microscopy reconstructions of two microtubule-bound transport kinesins at 7 Å resolution reveal how microtubule track binding stimulates ADP release, primes the active site for ATP binding and enables force generation.
    1. Evolutionary Biology
    2. Structural Biology and Molecular Biophysics

    Structure of a mitochondrial ATP synthase with bound native cardiolipin

    Alexander Mühleip et al.
    The atomic model of a mitochondrial ATP synthase dimer underlies functions of its specific protein constituents and boundary cardiolipins.
    1. Developmental Biology
    2. Neuroscience

    Synaptic mitochondria regulate hair-cell synapse size and function

    Hiu-tung C Wong et al.
    Mitochondrial calcium influx plays distinct roles in presynapse formation, function and stability in sensory hair cells.
    1. Cell Biology
    2. Developmental Biology

    Lamellar projections in the endolymphatic sac act as a relief valve to regulate inner ear pressure

    Ian A Swinburne et al.
    The pressure of fluid in the inner ear is controlled by opening of cellular valves in the endolymphatic sac to allow for regulated transepithelial fluid flow.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Time-resolved mapping of genetic interactions to model rewiring of signaling pathways

    Florian Heigwer et al.
    Genetic interaction analysis by combinatorial genetic perturbation and high-throughput imaging maps time- and context-dependent crosstalk between signaling pathways.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of a bacterial RNA polymerase holoenzyme open promoter complex

    Brian Bae et al.
    The crystal structure of bacterial RNA polymerase bound to the transcription bubble reveals key features that support the formation of a double-strand/single-strand DNA junction at the upstream edge of the −10 element where bubble formation initiates.

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