882 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Meiosis I chromosome segregation is established through regulation of microtubule–kinetochore interactions

    Matthew P Miller, Elçin Ünal ... Angelika Amon
    Preventing premature interactions between microtubules and protein-based structures called kinetochores ensures that chromosomes are segregated by meiosis rather than mitosis in reproductive cells.
    1. Structural Biology and Molecular Biophysics

    Myosin motors fragment and compact membrane-bound actin filaments

    Sven K Vogel, Zdenek Petrasek ... Petra Schwille
    A combination of single-molecule imaging and an in vitro model of the cell cortex has allowed the interactions between actin filaments and filaments made of myosin II to be studied in detail.
    1. Cell Biology
    2. Developmental Biology

    Mitotic spindle scaling during Xenopus development by kif2a and importin α

    Jeremy D Wilbur, Rebecca Heald
    An interaction between two proteins enables the spindle—the structure that segregates chromosome pairs during mitosis—to change size as cells divide.
    1. Neuroscience

    Kinesin-1 regulates dendrite microtubule polarity in Caenorhabditis elegans

    Jing Yan, Dan L Chao ... Kang Shen
    A cellular motor protein helps to ensure that microtubules are oriented correctly within neuronal dendrites
    1. Neuroscience

    Controlling gain one photon at a time

    Gregory W Schwartz, Fred Rieke
    Single absorbed photons trigger adaptational mechanisms that help the retina maintain sensitivity across a wide range of background illumination.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Patient-specific iPSC-derived photoreceptor precursor cells as a means to investigate retinitis pigmentosa

    Budd A Tucker, Robert F Mullins ... Edwin M Stone
    Skin cells from a patient with retinitis pigmentosa have been used to generate induced pluripotent stem cells, which could potentially form the basis of new treatments for this disease.
    1. Neuroscience

    Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions

    Shigeki Watanabe, Qiang Liu ... Erik M Jorgensen
    Optogenetics has revealed that synaptic vesicles can be recycled extremely rapidly in nematodes, indicating that existing models for how synapses 'reload' may need to be revised.
    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, Ronald D Vale, Richard J McKenney
    The motor domains of dynein are sufficient to crosslink microtubules and slide them antiparallel to each other.
    1. Stem Cells and Regenerative Medicine
    2. Neuroscience

    Imaging-based chemical screening reveals activity-dependent neural differentiation of pluripotent stem cells

    Yaping Sun, Zhiqiang Dong ... Su Guo
    A chemical screen reveals that a compound used to treat a parasitic disease can trigger pluripotent stem cells to become neurons, uncovering a novel mechanism behind neuronal development.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Crystal structures of the CPAP/STIL complex reveal its role in centriole assembly and human microcephaly

    Matthew A Cottee, Nadine Muschalik ... Mark van Breugel
    Structural analyses of the centriole proteins CPAP and STIL identify domains that are critical for centriole formation and provide a structural explanation for a mutation that causes human microcephaly.

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