54 results found
    1. Cell Biology

    Structural basis for membrane recruitment of ATG16L1 by WIPI2 in autophagy

    Lisa M Strong, Chunmei Chang ... James H Hurley
    The crystal structure of human WIPI2 bound to the ATG16L1 WIPI2-interacting region, combined with in vitro reconstitution and cellular autophagy assays, shows how the LC3 lipidation machinery is recruited in autophagy initiation.
    1. Cell Biology
    2. Neuroscience

    Expression of WIPI2B counteracts age-related decline in autophagosome biogenesis in neurons

    Andrea KH Stavoe, Pallavi P Gopal ... Erika LF Holzbaur
    The dynamic phosphorylation of autophagy component WIPI2B is critical to maintain autophagosome biogenesis in neurons, and ectopic expression of WIPI2B can restore rates of autophagosome biogenesis in aged neurons.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The autophagic membrane tether ATG2A transfers lipids between membranes

    Shintaro Maeda, Chinatsu Otomo, Takanori Otomo
    The autophagy protein ATG2A tethers membranes and transfers lipids between them, suggesting that autophagosome membranes grow upon the acquisition of lipids from the ER through the ATG2A bridge.
    1. Cell Biology
    2. Neuroscience

    Degradation of engulfed mitochondria is rate-limiting in Optineurin-mediated mitophagy in neurons

    Chantell S Evans, Erika LF Holzbaur
    In neuronal mitophagy, Parkin and OPTN induce efficient sequestration of damaged somal mitochondria into autophagosomes, but slow turnover via lysosomal acidification may be a point of vulnerability for the cell.
    1. Cell Biology

    Two distinct mechanisms target the autophagy-related E3 complex to the pre-autophagosomal structure

    Kumi Harada, Tetsuya Kotani ... Hitoshi Nakatogawa
    How the autophagy-related E3 complex localizes to pre-autophagosomal structures and a non-E3 function of the complex were revealed, significantly advancing our understanding of the nucleation step in autophagosome formation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Multiplex image-based autophagy RNAi screening identifies SMCR8 as ULK1 kinase activity and gene expression regulator

    Jennifer Jung, Arnab Nayak ... Christian Behrends
    An image-based multiplex autophagosome RNAi screen targeting all Rab GTPases as well as their GAPs and GEFs identifies the Rab GEF SMCR8 as multifaceted autophagy modulator, which regulates kinase activity and gene expression of ULK1.
    1. Cell Biology

    Syntaxin 17 recruitment to mature autophagosomes is temporally regulated by PI4P accumulation

    Saori Shinoda, Yuji Sakai ... Noboru Mizushima
    The autophagosomal membrane becomes negatively charged during maturation due to the accumulation of PI4P, leading to the recruitment of syntaxin 17, which is required for autophagosome-lysosome fusion.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Functional CRISPR screening identifies the ufmylation pathway as a regulator of SQSTM1/p62

    Rowena DeJesus, Francesca Moretti ... Beat Nyfeler
    FACS-based pooled CRISPR screening is a powerful forward genetic tool to interrogate cellular pathways and targets that modulate protein fate.
    1. Neuroscience

    Keratinocytes mediate innocuous and noxious touch via ATP-P2X4 signaling

    Francie Moehring, Ashley M Cowie ... Cheryl L Stucky
    Keratinocytes are critical for normal innocuous and noxious touch through their mechanically evoked ATP release and subsequent signaling to P2X4 channels on sensory neurons.
    1. Cell Biology
    2. Neuroscience

    Cardiac glycosides restore autophagy flux in an iPSC-derived neuronal model of WDR45 deficiency

    Apostolos Papandreou, Nivedita Singh ... Robin Ketteler
    Revised
    Reviewed Preprint v2
    Updated

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