• Atg8 family proteins, LIR/AIM motifs and other interaction modes 

      Rogov, Vladimir V.; Nezis, Ioannis P.; Tsapras, P; Zhang, Hong; Dagdas, Yasin; Noda, Nobuo N; Nakatogawa, Hitoshi; Wirth, Martina; Mouilleron, Stephane; McEwan, David G.; Behrends, Christian; Deretic, Vojo P.; Elazar, Zvulun; Tooze, Sharon A.; Dikic, Ivan; Lamark, Trond; Johansen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-19)
      The Atg8 family of ubiquitin-like proteins play pivotal roles in autophagy and other processes involving vesicle fusion and transport where the lysosome/vacuole is the end station. Nuclear roles of Atg8 proteins are also emerging. Here, we review the structural and functional features of Atg8 family proteins and their protein-protein interaction modes in model organisms such as yeast, Arabidopsis, ...
    • Members of the autophagy class III phosphatidylinositol 3-kinase complex I interact with GABARAP and GABARAPL1 via LIR motifs 

      Birgisdottir, Åsa Birna; Mouilleron, Stephane; Bhujabal, Zambarlal; Wirth, Martina; Sjøttem, Eva; Evjen, Gry; Zhang, Wenxin; Lee, Rebecca; O'Reilly, Nicola; Tooze, Sharon A; Lamark, Trond; Johansen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-04)
      Autophagosome formation depends on a carefully orchestrated interplay between membrane-associated protein complexes. Initiation of macroautophagy/autophagy is mediated by the ULK1 (unc-51 like autophagy activating kinase 1) protein kinase complex and the autophagy-specific class III phosphatidylinositol 3-kinase complex I (PtdIns3K-C1). The latter contains PIK3C3/VPS34, PIK3R4/VPS15, BECN1/Beclin 1 ...
    • Molecular determinants regulating selective binding of autophagy adapters and receptors to ATG8 proteins 

      Wirth, Martina; Zhang, Wenxin; Razi, Minoo; Nyoni, Lynet; Joshi, Dhira; O'Reilly, Nicola; Johansen, Terje; Tooze, Sharon; Mouilleron, Stephane (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-03)
      Autophagy is an essential recycling and quality control pathway. Mammalian ATG8 proteins drive autophagosome formation and selective removal of protein aggregates and organelles by recruiting autophagy receptors and adaptors that contain a LC3-interacting region (LIR) motif. LIR motifs can be highly selective for ATG8 subfamily proteins (LC3s/GABARAPs), however the molecular determinants regulating ...
    • Phosphorylation of the LIR Domain of SCOC Modulates ATG8 Binding Affinity and Specificity 

      Wirth, Martina; Mouilleron, Stephane; Zhang, Wenxin; Abudu, Yakubu Princely; Jain, Ashish; Olsvik, Hallvard Lauritz; Bruun, Jack-Ansgar; Razi, Minoo; Jefferies, Harold B.J.; Lee, Rebecca; Joshi, Dhira; O'Reilly, Nicola; Johansen, Terje; Tooze, Sharon A (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-24)
      <p>Autophagy is a highly conserved degradative pathway, essential for cellular homeostasis and implicated in diseases including cancer and neurodegeneration. Autophagy-related 8 (ATG8) proteins play a central role in autophagosome formation and selective delivery of cytoplasmic cargo to lysosomes by recruiting autophagy adaptors and receptors. The LC3-interacting region (LIR) docking site (LDS) of ...
    • SAMM50 acts with p62 in piecemeal basal- and OXPHOS-induced mitophagy of SAM and MICOS components 

      Abudu, Yakubu Princely; Shrestha, Birendra Kumar; Zhang, Wenxin; Palara, Anthimi; Brenne, Hanne Britt; Larsen, Kenneth Bowitz; Wolfson, Deanna; Dumitriu, Gianina; Øie, Cristina Ionica; Ahluwalia, Balpreet Singh; Levy, Gahl; Behrends, Christian; Tooze, Sharon A; Mouilleron, Stephane; Lamark, Trond; Johansen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-26)
      Mitophagy is the degradation of surplus or damaged mitochondria by autophagy. In addition to programmed and stress-induced mitophagy, basal mitophagy processes exert organelle quality control. Here, we show that the sorting and assembly machinery (SAM) complex protein SAMM50 interacts directly with ATG8 family proteins and p62/SQSTM1 to act as a receptor for a basal mitophagy of components of the ...
    • SAMM50 is a receptor for basal piecemeal mitophagy and acts with SQSTM1/p62 in OXPHOS-induced mitophagy 

      Abudu, Yakubu Princely; Mouilleron, Stephane; Tooze, Sharon A; Lamark, Trond; Johansen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-18)
      Mitophagy, the clearance of surplus or damaged mitochondria or mitochondrial parts by autophagy, is important for maintenance of cellular homeostasis. Whereas knowledge on programmed and stress-induced mitophagy is increasing, much less is known about mechanisms of basal mitophagy. Recently, we identified SAMM50 (SAMM50 sorting and assembly machinery component) as a receptor for piecemeal degradation ...