85 results found
  1. December 2014

    Episode 16: December 2014

    In this episode we hear about reproducibility, drug resistance, cells without walls, gene transfer, interspecies signalling, and stem cells.
    1. Physics of Living Systems

    Surface-to-volume scaling and aspect ratio preservation in rod-shaped bacteria

    Nikola Ojkic et al.
    Rod-shaped bacteria preserve their aspect ratios and surface-to-volume scaling by maintaining a homeostatic balance between the rates of cell elongation and division protein synthesis.
    1. Plant Biology

    Epidermal LysM receptor ensures robust symbiotic signalling in Lotus japonicus

    Eiichi Murakami et al.
    Functional analyses provide evidence for a complex Nod factor signalling where NFRe is necessary for maintaining an optimal symbiotic signalling in the susceptible root zone, and initiation of nodule primordia on the expanding root system.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A unifying mechanism for the biogenesis of membrane proteins co-operatively integrated by the Sec and Tat pathways

    Fiona J Tooke et al.
    Bioinformatics and experimental approaches identify families of membrane proteins requiring the co-ordinated action of the Sec pathway and Tat pathways for their integration and define features of the polypeptides that mediate interaction with these pathways.
    1. Developmental Biology
    2. Genetics and Genomics

    The genome of the crustacean Parhyale hawaiensis, a model for animal development, regeneration, immunity and lignocellulose digestion

    Damian Kao et al.
    The first malacostracan genome sequence will establish the genetically tractable Parhyale hawaiensis as a model organism in this key animal group.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Structural elucidation of a novel mechanism for the bacteriophage-based inhibition of the RNA degradosome

    An Van den Bossche et al.
    A bacteriophage remodels the RNA metabolism machinery of a bacterial host to sequentially clear host transcripts and then stabilize the viral RNA.
    1. Developmental Biology

    Oviductal estrogen receptor α signaling prevents protease-mediated embryo death

    Wipawee Winuthayanon et al.
    Cyclic estrogen signaling in oviduct epithelial cells suppresses oviduct luminal protease activity to allow survival and development of preimplantation embryos
    1. Structural Biology and Molecular Biophysics

    Structure of a type IV pilus machinery in the open and closed state

    Vicki AM Gold et al.
    Electron cryo-tomography reveals a huge conformational change in the secretin domain of the type IV pilus machinery that occurs when the channel opens for pilus extrusion.
    1. Evolutionary Biology

    Antibacterial gene transfer across the tree of life

    Jason A Metcalf et al.
    Parallel horizontal gene transfer has spread a bacteriolytic gene family to all domains of life, and has bestowed a niche-transcending adaptation in recipients that must deploy antibacterial molecules to survive in a bacterial world.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Insights into the key determinants of membrane protein topology enable the identification of new monotopic folds

    Sonya Entova et al.
    Key sequence motifs, defined using the first reported structure of a monotopic membrane protein with a reentrant helix, enable identification of new monotopic membrane protein families previously predicted as membrane spanning.

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