117 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, David Melville ... Randy Schekman
    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. Cell Biology

    Spatiotemporal dissection of the Golgi apparatus and the ER-Golgi intermediate compartment in budding yeast

    Takuro Tojima, Yasuyuki Suda ... Akihiko Nakano
    Spatiotemporal mapping of a variety of proteins in and around the Golgi apparatus in budding yeast was performed using super-resolution live imaging microscopy and identified the ER-Golgi intermediate compartment that matures into the Golgi.
    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, Min Zhang, Randy Schekman
    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. Physics of Living Systems

    A minimal self-organisation model of the Golgi apparatus

    Quentin Vagne, Jean-Patrick Vrel, Pierre Sens
    An unbiased model for the self-organisation of the Golgi apparatus displays either anterograde vesicular transport or cisternal maturation depending on ratios of budding, fusion and biochemical conversion rates.
    1. Cell Biology
    2. Physics of Living Systems

    A physical mechanism of TANGO1-mediated bulky cargo export

    Ishier Raote, Morgan Chabanon ... Felix Campelo
    TANGO1 functions as a linactant filament to stabilize shallow COPII-coated buds, and after which membrane tension regulation, possibly mediated by TANGO1-controlled membrane fusion, facilitates bud elongation for procollagen export.
    1. Cell Biology
    2. Physics of Living Systems

    Golgi compartments enable controlled biomolecular assembly using promiscuous enzymes

    Anjali Jaiman, Mukund Thattai
    By partitioning promiscuous enzymes across multiple Golgi compartments, eukaryotic cells can tightly control the synthesis of complex sugar oligomers.
    1. Cell Biology

    Stacking the odds for Golgi cisternal maturation

    Somya Mani, Mukund Thattai
    A screen of tens of thousands of vesicle traffic networks in silico shows that Golgi-like cisternal maturation is a natural outcome of vesicle traffic homeostasis.
    1. Cell Biology

    Biallelic TANGO1 mutations cause a novel syndromal disease due to hampered cellular collagen secretion

    Caroline Lekszas, Ombretta Foresti ... Thomas Haaf
    The first human TANGO1-associated syndromal disease manifests as impaired collagen secretion, highlighting the importance of TANGO1 in human pathophysiology.
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    1. Cell Biology

    Src activates retrograde membrane traffic through phosphorylation of GBF1

    Joanne Chia, Shyi-Chyi Wang ... Frederic A Bard
    Src phosphorylates GBF1, promoting binding of the Sec7 domain to Arf1 and the formation of GALNTs containing tubules emanating from the Golgi.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Misfolded proteins bind and activate death receptor 5 to trigger apoptosis during unresolved endoplasmic reticulum stress

    Mable Lam, Scot A Marsters ... Peter Walter
    Death receptor 5 can directly sense misfolded proteins downstream of the endoplasmic reticulum to provide a quality control mechanism that executes apoptosis and prevents further production of misfolded proteins.

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