68 results found
    1. Biochemistry and Chemical Biology
    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.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Phosphatidylinositol 3-kinase and COPII generate LC3 lipidation vesicles from the ER-Golgi intermediate compartment

    Liang Ge et al.
    Building on previous work (Ge et al., 2013), it is shown that the ER-Golgi intermediate compartment is a platform for the production of COPII vesicles as precursor membranes for the lipidation of LC3, which is an essential step in autophagosome biogenesis.
    1. Cell Biology

    Autophagy: COPII vesicles and the expansion of the phagophore

    Catherine Rabouille
    A new study has identified the proteins that adapt COPII vesicles to the needs of starving cells.
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    1. Cell Biology

    ESCRTs function directly on the lysosome membrane to downregulate ubiquitinated lysosomal membrane proteins

    Lu Zhu et al.
    The lysosome membrane is a new functional location for the ESCRTs in yeast.
    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. Cell Biology

    Inter-Golgi transport mediated by COPI-containing vesicles carrying small cargoes

    Patrina A Pellett et al.
    Evidence that certain proteins can be transported between Golgi via structures that resemble COPI vesicles suggests that these vesicles could also be involved in the transport of proteins from the cis to the trans face of the Golgi.
    1. Cell Biology

    GnT1IP-L specifically inhibits MGAT1 in the Golgi via its luminal domain

    Hung-Hsiang Huang et al.
    GnT1IP-L is a membrane bound glycoprotein that interacts with MGAT1 in the Golgi, but not in the endoplasmic reticulum, to regulate complex N-glycan synthesis.
    1. Microbiology and Infectious Disease

    Determination of host proteins composing the microenvironment of coronavirus replicase complexes by proximity-labeling

    Philip V'kovski et al.
    The molecular microenvironment of coronaviral replicase complexes provides functional and spatial links between conserved cellular processes and viral RNA synthesis, and highlights potential targets for the development of novel antivirals.
    1. Cell Biology
    2. Computational and Systems Biology

    Active machine learning-driven experimentation to determine compound effects on protein patterns

    Armaghan W Naik et al.
    In an investigation into the effects of drugs on proteins, an active machine learning algorithm chose which sets of experiments to perform and was able to learn an accurate model of the effects after doing only a fraction of the experiments.
    1. Cell Biology

    Sec24 phosphorylation regulates autophagosome abundance during nutrient deprivation

    Saralin Davis et al.
    Phosphorylation of a core trafficking component, the COPII coat subunit Sec24, regulates cross-talk between the secretory and autophagy machinery during starvation.

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