August 2013

Research articles

    1. Biochemistry
    2. Biophysics and Structural Biology

    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.
    Research Article
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    1. Cell Biology

    Bax and Bak function as the outer membrane component of the mitochondrial permeability pore in regulating necrotic cell death in mice

    Jason Karch et al.
    The proteins Bax and Bak, which increase the permeability of the mitochondrial membrane during apoptosis, are also crucial for generating a mitochondrial membrane pore that is specifically involved in necrosis.
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    1. Developmental Biology and Stem Cells

    Physiological and stem cell compartmentalization within the Drosophila midgut

    Alexis Marianes, Allan C Spradling
    The intestine contains distinct subregions specialized for digestion along its anterior-posterior axis, and the stem cells that constantly renew these subregions are not interchangeable.
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    1. Developmental Biology and Stem Cells
    2. Genes and Chromosomes

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

    Budd A Tucker et al.
    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.
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    1. Biochemistry
    2. Genes and Chromosomes

    ATP-dependent chromatin assembly is functionally distinct from chromatin remodeling

    Sharon E Torigoe et al.
    The Chd1 motor protein performs two functionally distinct ATP-dependent activities, nucleosome assembly and chromatin remodeling, to generate periodic arrays of nucleosomes.
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    1. Developmental Biology and Stem Cells
    2. Neuroscience

    APP interacts with LRP4 and agrin to coordinate the development of the neuromuscular junction in mice

    Hong Y Choi et al.
    Proteins implicated in Alzheimer’s disease, including amyloid precursor protein and ApoE receptors, interact with each other and with a signalling molecule called agrin to influence the development of the neuromuscular junction.
    Research Article
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    1. Cell Biology
    2. Immunology

    MAVS recruits multiple ubiquitin E3 ligases to activate antiviral signaling cascades

    Siqi Liu et al.
    A cell-free system combined with cell-based assays elucidate the biochemical mechanism of signal transduction mediated by the mitochondrial protein MAVS and delineates the role of ubiquitin E3 ligases in antiviral innate immune responses.
    Research Article
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    1. Cell Biology
    2. Neuroscience

    UNC-13L, UNC-13S, and Tomosyn form a protein code for fast and slow neurotransmitter release in Caenorhabditis elegans

    Zhitao Hu et al.
    Long and short variants of a protein called UNC-13, assisted by another called Tomosyn, regulate the timing of synaptic vesicle release in C. elegans.
    Research Article
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    1. Developmental Biology and Stem Cells
    2. Genes and Chromosomes

    A global change in RNA polymerase II pausing during the Drosophila midblastula transition

    Kai Chen et al.
    The first zygotic genes are transcribed without RNA polymerase II pausing from a TATA-enriched promoter.
    Research Article
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    1. Biochemistry
    2. Biophysics and Structural Biology

    Mechanism of ubiquitin ligation and lysine prioritization by a HECT E3

    Hari B Kamadurai et al.
    Structural studies reveal the mechanism by which a HECT E3 ubiquitin ligase carries out E2-to-E3-to-substrate ubiquitin transfer and prioritizes target lysines for ubiquitination.
    Research Article
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    1. Biochemistry
    2. Cell Biology

    The ER–Golgi intermediate compartment is a key membrane source for the LC3 lipidation step of autophagosome biogenesis

    Liang Ge et al.
    A cell-free biochemical assay for protein lipidation identifies the ER–Golgi intermediate compartment as a key early station in the formation of an autophagosome.
    Research Article
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    1. Cell Biology

    Single molecule imaging reveals a major role for diffusion in the exploration of ciliary space by signaling receptors

    Fan Ye et al.
    Membrane receptor proteins move through primary cilia largely by passive diffusion rather than by active intraflagellar transport.
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    1. Developmental Biology and Stem Cells
    2. Genomics and Evolutionary Biology

    Cellular resolution models for even skipped regulation in the entire Drosophila embryo

    Garth R Ilsley et al.
    A statistical model is able to predict patterns of gene expression output in Drosophila embryos using only the cellular concentrations of transcription factors as input.
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