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    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The structure of the COPII transport-vesicle coat assembled on membranes

    Giulia Zanetti et al.
    A structure of the complete, membrane bound, COPII coat solved by sub-tomogram averaging reveals the arrangement of all protein subunits on the membrane and suggests a mechanism for coating heterogeneously-shaped carriers.
    1. Microbiology and Infectious Disease

    Visualization of the type III secretion mediated Salmonella–host cell interface using cryo-electron tomography

    Donghyun Park et al.
    Visualization of the type III secretion mediated Salmonella-host cell interface reveals the intact translocon and the profound remodeling of the host membrane at unprecedented resolution.
    1. Microbiology and Infectious Disease

    Mechanisms of substrate recognition by a typhoid toxin secretion-associated muramidase

    Tobias Geiger et al.
    Biochemical analyses and the crystal structure of TtsA reveal fundamental insight into the mechanisms by which this muramidase recognizes its peptidoglycan substrate to facilitate typhoid toxin secretion.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The C-terminal tail of the bacterial translocation ATPase SecA modulates its activity

    Mohammed Jamshad et al.
    The interaction of SecA with its substrate proteins is regulated by its evolutionarily conserved C-terminal tail, which autoinhibits SecA unless SecA binds to the ribosome.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Small molecule proteostasis regulators that reprogram the ER to reduce extracellular protein aggregation

    Lars Plate et al.
    Small molecule proteostasis regulators that activate the unfolded protein response transcription factor ATF6 reduce the secretion of amyloid disease-associated proteins.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    iTAP, a novel iRhom interactor, controls TNF secretion by policing the stability of iRhom/TACE

    Ioanna Oikonomidi et al.
    Secretion of the inflammatory cytokine TNF requires a protein called iTAP/FrmD8, which controls the cell surface stability of the TNF shedding machinery, iRhom2 and TACE/ADAM17.
    1. Cell Biology

    A critical role of VMP1 in lipoprotein secretion

    Hideaki Morishita et al.
    The ER transmembrane protein VMP1 is important for release of lipoproteins from the ER membrane into the ER lumen for secretion.
    1. Cell Biology
    2. Immunology and Inflammation

    Plasma membrane overgrowth causes fibrotic collagen accumulation and immune activation in Drosophila adipocytes

    Yiran Zang et al.
    Excess membrane can trap outgoing extracellular matrix proteins in secreting cells, leading to pericellular deposits that cause tissue damage.
    1. Cell Biology

    SLY1 and Syntaxin 18 specify a distinct pathway for procollagen VII export from the endoplasmic reticulum

    Cristina Nogueira et al.
    A cross-linking screen finds proteins that interact with TANGO1 to export Procollagen VII, and suggests a new model for the secretion of these bulky cargoes that are involved in skin and bone formation.
    1. Cell Biology
    2. Human Biology and Medicine

    The cargo receptor SURF4 promotes the efficient cellular secretion of PCSK9

    Brian T Emmer et al.
    A CRISPR-based genomic screen identifies the ER cargo receptor SURF4 as a key determinant in the secretion of PCSK9, a protein that regulates human cholesterol levels and cardiovascular disease risk.