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    1. Neuroscience

    A longitudinal study of Caenorhabditis elegans larvae reveals a novel locomotion switch, regulated by Gαs signaling

    Stanislav Nagy et al.
    C. elegans exhibits two distinct behavioural macro-states, active and quiet wakefulness, and protein kinase A regulates switching between these two states.
    1. Neuroscience

    Skill learning strengthens cortical representations of motor sequences

    Tobias Wiestler, Jörn Diedrichsen
    Detailed analysis of fMRI data shows that sequences of movements are associated with individual patterns of neural activity that become more distinct with training.
    1. Developmental Biology
    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.
    1. Chromosomes and Gene Expression

    A component of the mir-17-92 polycistronic oncomir promotes oncogene-dependent apoptosis

    Virginie Olive et al.
    While intact mir-17-92 acts as a potent oncogene in a mouse model of Burkitt’s lymphoma, one of the six mir-17-92 components antagonizes its oncogenic cooperation with c-Myc by promoting c-Myc-induced apoptosis.
    1. Chromosomes and Gene Expression

    Growth hormone-releasing hormone disruption extends lifespan and regulates response to caloric restriction in mice

    Liou Y Sun et al.
    Mice with a mutation that disrupts the release of growth hormone show greatly increased lifespan, which can be further increased by caloric restriction.
    1. Ecology

    Spatial self-organization favors heterotypic cooperation over cheating

    Babak Momeni et al.
    Two cooperative populations of yeast cells that cannot distinguish between cooperative partners and cheating intruders can still self-organize into clusters that exclude cheaters.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Discovery of a metabolic alternative to the classical mevalonate pathway

    Nikki Dellas et al.
    A combination of phylogenetic and biochemical analyses suggest that some unexpected variations in the synthesis of isoprenoids may be widespread across all three domains of life.
    1. Immunology and Inflammation

    T cell immunodominance is dictated by the positively selecting self-peptide

    Wan-Lin Lo et al.
    The T cell repertoire can display immunodominance to an epitope as a result of optimal positive selection in the thymus by one self-peptide/MHC ligand.
    1. Neuroscience

    Cell type-specific and time-dependent light exposure contribute to silencing in neurons expressing Channelrhodopsin-2

    Alexander M Herman et al.
    Optogenetic techniques, whereby light is used to activate neuronal cells, are quickly becoming widely used in neuroscience; but excessive exposure to light can actually silence certain types of neuronal cells.
    1. Biochemistry and Chemical Biology

    An allosteric Sec61 inhibitor traps nascent transmembrane helices at the lateral gate

    Andrew L MacKinnon et al.
    A small molecule, cotransin, blocks transmembrane domains form integrating into cell membranes by allosterically ‘locking’ the lateral gate of the Sec61 translocation channel.