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

    ESCRT-III activation by parallel action of ESCRT-I/II and ESCRT-0/Bro1 during MVB biogenesis

    Shaogeng Tang, Nicholas J Buchkovich ... Scott D Emr
    Building on previous work (Tang et al., 2015), novel ESCRT-III subunit Snf7 auto-activation mutants are used to reveal two parallel ubiquitin-dependent pathways during multivesicular endosome biogenesis.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    A TRAF-like E3 ubiquitin ligase TrafE coordinates ESCRT and autophagy in endolysosomal damage response and cell-autonomous immunity to Mycobacterium marinum

    Lyudmil Raykov, Manon Mottet ... Thierry Soldati
    The Dictyostelium discoideum TRAF6 homolog TrafE coordinates the autophagy and ESCRT membrane repair machineries and works in the major cell-autonomous restriction pathway to control Mycobacterium marinum intracellular infection.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of protein translocation by the Vps4-Vta1 AAA ATPase

    Nicole Monroe, Han Han ... Christopher P Hill
    A cryo-electron microscopy structure of a substrate-bound Vps4-Vta1 AAA ATPase reveals an asymmetric hexameric ring and suggests how nucleotide-induced changes in subunit interfaces translocate polypeptides into the central pore.
    1. Cell Biology

    ESCRT-III drives the final stages of CUPS maturation for unconventional protein secretion

    Amy J Curwin, Nathalie Brouwers ... Vivek Malhotra
    The release of Acb1 protein from yeast cells requires the ESCRT-III complex to stabilize the compartment for unconventional protein secretion (CUPS).
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Chromerid genomes reveal the evolutionary path from photosynthetic algae to obligate intracellular parasites

    Yong H Woo, Hifzur Ansari ... Arnab Pain
    Analysis of chromerid algal genomes reveals how apicomplexans have evolved from free-living algae into successful eukaryotic parasites via massive losses and re-inventing functional roles of genes.
    1. Cell Biology
    2. Developmental Biology

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

    Hendrik Pannen, Tim Rapp, Thomas Klein
    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. Biochemistry and Chemical Biology
    2. Cell Biology

    The coordinated action of the MVB pathway and autophagy ensures cell survival during starvation

    Martin Müller, Oliver Schmidt ... David Teis
    A catabolic cascade is essential to enter a stable G1/G0 quiescent state and survive extended periods of starvation.
    1. Cell Biology

    Structure of cellular ESCRT-III spirals and their relationship to HIV budding

    Anil G Cashikar, Soomin Shim ... Phyllis I Hanson
    Electron microscopy on native membranes reveals the shape and potential function of protein machinery responsible for budding vesicles and viruses away from the cytoplasm.
    1. Cancer Biology
    2. Cell Biology

    Identification of abscission checkpoint bodies as structures that regulate ESCRT factors to control abscission timing

    Lauren K Strohacker, Douglas R Mackay ... Katharine S Ullman
    Cytoplasmic bodies sequester important abscission machinery to delay completion of cytokinesis in response to mitotic errors.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The AAA ATPase Vps4 binds ESCRT-III substrates through a repeating array of dipeptide-binding pockets

    Han Han, Nicole Monroe ... Christopher P Hill
    A 3.2 Å resolution structure of Vps4 provides a detailed model for protein substrate binding and translocation by AAA ATPases.

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