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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Rab GTPases: Mutant enzymes challenge all assumptions

    Ryan M Nottingham, Suzanne R Pfeffer
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    1. Cell Biology
    2. Developmental Biology

    Genetic screen in Drosophila muscle identifies autophagy-mediated T-tubule remodeling and a Rab2 role in autophagy

    Naonobu Fujita et al.
    Analyses of a developmentally regulated Drosophila myofiber remodeling program provide insight into induced autophagy required for T-tubule membrane reorganization, and uncover a conserved Rab2 role in autophagosome-lysosome fusion.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Phenotypic complementation of genetic immunodeficiency by chronic herpesvirus infection

    Donna A MacDuff et al.
    HOIL-1 deficiency in mice results in a severe immunodeficiency that is effectively complemented by chronic infection with a murine gamma-herpesvirus.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Snf1/AMPK promotes the formation of Kog1/Raptor-bodies to increase the activation threshold of TORC1 in budding yeast

    James E Hughes Hallett et al.
    The key Target of Rapamycin Complex (TORC1) component Kog1 moves into bodies during glucose starvation to limit reactivation of the complex.
    1. Cell Biology

    Distinct Akt phosphorylation states are required for insulin regulated Glut4 and Glut1-mediated glucose uptake

    Muheeb Beg et al.
    Distinct phosphorylations of Akt determine the regulation of glucose uptake into fat and epithelial cells, revealing unexpected specialization in both Akt activation and its downstream control of glucose metabolism.
    1. Cell Biology
    2. Developmental Biology

    The ESCRT machinery regulates retromer-dependent transcytosis of septate junction components in Drosophila

    Hendrik Pannen et al.
    A novel role of endosomal machineries retromer and ESCRT in membrane delivery of Drosophila septate junction components is required for maintenance of junction integrity and epithelial barrier function.
    1. Microbiology and Infectious Disease

    The human leukemia virus HTLV-1 alters the structure and transcription of host chromatin in cis

    Anat Melamed et al.
    The human leukemia virus HTLV-1 causes abnormal chromatin looping in tens of thousands of infected T cell clones in each host, and abnormal host transcription both flanking the integrated provirus and at distant loci in cis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Diversity and plasticity in Rab GTPase nucleotide release mechanism has consequences for Rab activation and inactivation

    Lars Langemeyer et al.
    Analysis of multiple guanine exchange factors shows that Rab activation can occur via a number of mechanistically distinct GDP-release pathways.
    1. Cell Biology

    In vivo identification of GTPase interactors by mitochondrial relocalization and proximity biotinylation

    Alison K Gillingham et al.
    Relocation of Rab, Ras and Rho family GTPases to the surface of mitochondria enables efficient identification of their effectors, exchange factors and GAPs by proximity biotinylation.
    1. Cell Biology
    2. Neuroscience

    Dual function of the PI3K-Akt-mTORC1 axis in myelination of the peripheral nervous system

    Gianluca Figlia et al.
    High PI3K-Akt-mTORC1 activity inhibits Schwann cell differentiation, while after onset of myelination, residual PI3K-Akt-mTORC1 activity promotes myelin growth.