363 results found
    1. Chromosomes and Gene Expression

    Nonsense mRNA suppression via nonstop decay

    Joshua A Arribere, Andrew Z Fire
    Nonstop mRNA decay degrades mRNAs with a premature stop codon after such mRNAs are targeted by the nonsense-mediated decay machinery.
    1. Developmental Biology
    2. Evolutionary Biology

    Domestic chickens activate a piRNA defense against avian leukosis virus

    Yu Huining Sun et al.
    To protect the germ line genome, chickens acquire new small RNA-based immune defense in response to recently endogenized retroviruses by turning a truncated provirus into a weapon.
    1. Neuroscience

    Inhibitory control of correlated intrinsic variability in cortical networks

    Carsen Stringer et al.
    A new cortical network model fit directly to multi-neuron recordings reveals that local inhibitory feedback can control neural dynamics, modulate brain state and enhance sensory processing.
    1. Neuroscience

    The impact of pathological high-frequency oscillations on hippocampal network activity in rats with chronic epilepsy

    Laura A Ewell et al.
    A novel framework for separating normal and pathological high-frequency oscillations in animals with epilepsy uncovers new mechanisms for impaired hippocampal network function.
    1. Developmental Biology
    2. Genetics and Genomics

    Zygotic gene activation in the chicken occurs in two waves, the first involving only maternally derived genes

    Young Sun Hwang et al.
    In Aves, the first wave of transcription is derived exclusively from the maternal genome.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Synthetic single domain antibodies for the conformational trapping of membrane proteins

    Iwan Zimmermann et al.
    Synthetic single domain antibody libraries and a binder selection cascade encompassing ribosome and phage display enable the selection of conformation-specific binders against previously intractable membrane proteins within three weeks.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Quantifying antibiotic impact on within-patient dynamics of extended-spectrum beta-lactamase resistance

    Rene Niehus et al.
    A data-driven within-host model reveals that different antibiotics are associated with divergent effects on antibiotic resistance carriage and abundance in hospitalised patients, with important implications for antibiotic stewardship.
    1. Ecology

    Acknowledging selection at sub-organismal levels resolves controversy on pro-cooperation mechanisms

    Wenying Shou
    Building on previous work (Momeni et al., 2013), it is shown that recognizing the hierarchical organization of biological systems resolves the ongoing controversy on pro-cooperation mechanisms.
    1. Cell Biology

    Probing the catalytic functions of Bub1 kinase using the small molecule inhibitors BAY-320 and BAY-524

    Anna P Baron et al.
    Chemical inhibition of Bub1 shows that the catalytic activity is not required for normal mitotic progression, but it makes chromosome segregation and cell proliferation more sensitive to the effects of the anti-cancer drug Paclitaxel.
    1. Cell Biology
    2. Developmental Biology

    Optogenetic dissection of mitotic spindle positioning in vivo

    Lars-Eric Fielmich et al.
    New germline gene expression, knockout, and optogenetic tools reveal essential roles for Gα-GPR-1,2/Pins as a regulatable membrane anchor and LIN-5/NuMA as an activator of cortical dynein in mitotic spindle positioning.

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