317 results found
    1. Microbiology and Infectious Disease

    Strong inter-population cooperation leads to partner intermixing in microbial communities

    Babak Momeni et al.
    Simulations and experiments on systems containing two different populations of microorganisms show that interactions that benefit at least one of the populations can lead to communities with stable compositions, and that strong cooperation between two populations can lead to communities in which both populations are mixed together.
    1. Neuroscience

    Convergence of pontine and proprioceptive streams onto multimodal cerebellar granule cells

    Cheng-Chiu Huang et al.
    Individual granule cells within the cerebellum-the region of the brain that coordinates movement and supports the learning of new motor skills-receive both sensory and motor input streams: an arrangement that may help the brain to use feedback to fine-tune movement.
    1. Chromosomes and Gene Expression
    2. Human Biology and Medicine

    MYBL2 is a sub-haploinsufficient tumor suppressor gene in myeloid malignancy

    Stefan Heinrichs et al.
    Reduced expression of MYBL2 contributes to malignancies of the blood by permitting uncontrolled expansion of blood cell progenitors, implying a tumor suppressor function for this gene.
    1. Structural Biology and Molecular Biophysics

    Structural analysis of autoinhibition in the Ras-specific exchange factor RasGRP1

    Jeffrey S Iwig et al.
    A key activator of Ras signaling adopts an autoinhibited, dimeric conformation that is activated by membrane and calcium binding.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A family of fluoride-specific ion channels with dual-topology architecture

    Randy B Stockbridge et al.
    Efflux of xenobiotic fluoride from microorganisms occurs through a novel family of ion channels with stringent selectivity for fluoride ion and dual-topology molecular architecture.
    1. Developmental Biology

    An essential role for maternal control of Nodal signaling

    Pooja Kumari et al.
    Regulation of conserved Nodal factors by a maternal protein ensures that Nodal signaling is repressed until the appropriate time in embryonic development.
    1. Stem Cells and Regenerative Medicine
    2. Neuroscience

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

    Yaping Sun et al.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and function of the Smoothened extracellular domain in vertebrate Hedgehog signaling

    Sigrid Nachtergaele et al.
    A cysteine-rich domain within the Smoothened receptor may represent a novel therapeutic target for cancers caused by abnormal functioning of the Hedgehog signaling pathway.
    1. Structural Biology and Molecular Biophysics

    Subdued, a TMEM16 family Ca2+-activated Cl channel in Drosophila melanogaster with an unexpected role in host defense

    Xiu Ming Wong et al.
    A newly characterized calcium-activated chloride channel has been implicated in the immune system of Drosophila, shedding light on an enigmatic family of transmembrane proteins that are ubiquitous in nature.
    1. Stem Cells and Regenerative Medicine

    A network of heterochronic genes including Imp1 regulates temporal changes in stem cell properties

    Jinsuke Nishino et al.
    A set of genes that are turned on only within time-limited windows—including genes encoding RNA binding molecules, let-7 microRNAs and IMP1—control developmental switches in stem cell properties between fetal development and adulthood.

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