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  1. Episode 3: August 2013

    Episode 3: August 2013

    In this episode we hear about the cocktail party effect, the role of psuedogene RNA in the immune response, the genetic origins of a common form of blindness, the flu vaccine, and the origins of schistosomiasis.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    The MBD7 complex promotes expression of methylated transgenes without significantly altering their methylation status

    Dongming Li et al.
    The METHYL-CpG-BINDING DOMAIN 7 (MBD7) complex promotes the activation (rather than repression) of transgenes that undergo DNA methylation and it does so without significantly altering their methylation status, placing this complex downstream of DNA methylation.
    1. Cell Biology

    Spatiotemporal regulation of autophagy during Caenorhabditis elegans aging

    Jessica T Chang et al.
    Autophagic flux assays in the nematode Caenorhabditis elegans suggest that autophagy decreases during normal aging, whereas long-lived daf-2 and glp-1 mutants maintain autophagic capacity in distinct spatiotemporal-specific manners to extend lifespan.
    1. Developmental Biology
    2. Genetics and Genomics

    In vivo targeting of de novo DNA methylation by histone modifications in yeast and mouse

    Marco Morselli et al.
    DNA methylation deposition is dependent on the presence of H3K4me3 and H3K36me3 histone marks.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    T cell receptor repertoires of mice and humans are clustered in similarity networks around conserved public CDR3 sequences

    Asaf Madi et al.
    A new perception of the organization of T-cell receptor repertoires in mice and humans, based on high-throughput sequencing and CDR3 sequence similarity, indicates hubs of cross-species public sequences forming evolutionary conserved 'foci of attention' of T cell immunity.
    1. Microbiology and Infectious Disease

    pp32 and APRIL are host cell-derived regulators of influenza virus RNA synthesis from cRNA

    Kenji Sugiyama et al.
    The host-derived factors, pp32 and APRIL, interact with influenza viral RNA polymerase to support viral genomic RNA synthesis from complementary RNA.
    1. Developmental Biology
    2. Evolutionary Biology

    Evolutionary changes in transcription factor coding sequence quantitatively alter sensory organ development and function

    Simon Weinberger et al.
    The coding sequences of a very highly conserved family of neurogenic transcription factors from different species have evolved to generate proteins that have different life times causing them to display quantitatively different neural induction potentials.
    1. Stem Cells and Regenerative Medicine

    Loss of adult skeletal muscle stem cells drives age-related neuromuscular junction degeneration

    Wenxuan Liu et al.
    Building on previous work (Liu et al., 2015), it is shown that depletion or rescue of adult skeletal muscle stem cells is sufficient to induce or attenuate age-associated neuromuscular junction deterioration respectively.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    9Å structure of the COPI coat reveals that the Arf1 GTPase occupies two contrasting molecular environments

    Svetlana O Dodonova et al.
    A molecular model of the assembled COPI coat, determined by cryo-electron tomography of an in vitro reconstituted budding reaction, reveals details of interactions mediating coat assembly and shows the binding site of ArfGAP2.
    1. Computational and Systems Biology
    2. Neuroscience

    Reciprocal regulation of ARPP-16 by PKA and MAST3 kinases provides a cAMP-regulated switch in protein phosphatase 2A inhibition

    Veronica Musante et al.
    A complex interplay between MAST3 and PKA protein kinases and the regulatory protein ARPP-16 allows cAMP to control the activity of protein phosphatase 2A.