2023
Growing thin — How bulk lipid transport drives expansion of the autophagosome membrane but not of its lumen
Melia T. Growing thin — How bulk lipid transport drives expansion of the autophagosome membrane but not of its lumen. Current Opinion In Cell Biology 2023, 83: 102190. PMID: 37385155, PMCID: PMC10528516, DOI: 10.1016/j.ceb.2023.102190.Peer-Reviewed Original Research
2022
Oligodendroglial macroautophagy is essential for myelin sheath turnover to prevent neurodegeneration and death
Aber ER, Griffey CJ, Davies T, Li AM, Yang YJ, Croce KR, Goldman JE, Grutzendler J, Canman JC, Yamamoto A. Oligodendroglial macroautophagy is essential for myelin sheath turnover to prevent neurodegeneration and death. Cell Reports 2022, 41: 111480. PMID: 36261002, PMCID: PMC9639605, DOI: 10.1016/j.celrep.2022.111480.Peer-Reviewed Original ResearchConceptsCell typesLive-cell imagingNeurodegenerative disease pathophysiologySuch cell typesMouse geneticsAdult-onset neurodegenerative diseaseMacroautophagyCell imagingNeurodegenerative diseasesMyelin proteinsNeurodegenerationDisease pathophysiologyTurnoverMature oligodendrocytesCentral nervous systemAmphisomesMyelin sheath structureNeural functionNervous systemMyelin turnoverGeneticsMyelin sheathProgressive motor declineProteinHomeostasis
2019
Distinct functions of ATG16L1 isoforms in membrane binding and LC3B lipidation in autophagy-related processes
Lystad AH, Carlsson SR, de la Ballina LR, Kauffman KJ, Nag S, Yoshimori T, Melia TJ, Simonsen A. Distinct functions of ATG16L1 isoforms in membrane binding and LC3B lipidation in autophagy-related processes. Nature Cell Biology 2019, 21: 372-383. PMID: 30778222, PMCID: PMC7032593, DOI: 10.1038/s41556-019-0274-9.Peer-Reviewed Original ResearchConceptsMembrane-binding regionTerminal membrane-binding regionLC3B lipidationMembrane-binding amphipathic helixLC3/GABARAPDifferent cellular conditionsDouble-membrane phagophoreSingle-membrane structuresGABARAP proteinsCanonical autophagyCellular conditionsAmphipathic helixTarget membraneMembrane bindingC-terminusDistinct functionsCovalent modificationLipidationΒ isoformsEssential roleKey eventsIsoformsPhagophoreGABARAPMacroautophagy
2013
The EM structure of the TRAPPIII complex leads to the identification of a requirement for COPII vesicles on the macroautophagy pathway
Tan D, Cai Y, Wang J, Zhang J, Menon S, Chou HT, Ferro-Novick S, Reinisch KM, Walz T. The EM structure of the TRAPPIII complex leads to the identification of a requirement for COPII vesicles on the macroautophagy pathway. Proceedings Of The National Academy Of Sciences Of The United States Of America 2013, 110: 19432-19437. PMID: 24218626, PMCID: PMC3845172, DOI: 10.1073/pnas.1316356110.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAutophagyChlorocebus aethiopsChromatography, GelCloning, MolecularCOP-Coated VesiclesCOS CellsElectroporationEscherichia coliImage Processing, Computer-AssistedMicroscopy, ElectronMicroscopy, FluorescenceModels, MolecularProtein ConformationSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsVesicular Transport ProteinsConceptsPhagophore assembly siteCOPII vesiclesAssembly sitesRab GTPase Ypt1Electron microscopy structureTargeting of ERTRAPPIII complexFusion machineryMicroscopy structureCOPII coatMacroautophagy pathwayExchange factorSubunit associatesMembrane sourceEM structuresAcceptor compartmentTRAPPIIITRAPPIVesiclesMacroautophagyTrs85COPIISec23Ypt1Mammals
2011
SNARE Proteins Are Required for Macroautophagy
Nair U, Jotwani A, Geng J, Gammoh N, Richerson D, Yen WL, Griffith J, Nag S, Wang K, Moss T, Baba M, McNew JA, Jiang X, Reggiori F, Melia TJ, Klionsky DJ. SNARE Proteins Are Required for Macroautophagy. Cell 2011, 146: 290-302. PMID: 21784249, PMCID: PMC3143362, DOI: 10.1016/j.cell.2011.06.022.Peer-Reviewed Original ResearchConceptsAutophagosome biogenesisAutophagosome membrane expansionV-SNAREs Sec22Vacuole/lysosomeDouble-membrane autophagosomesT-SNAREsAtg9 transportSNARE proteinsDe novo formationAutophagy componentsFusion eventsMembrane expansionTubulovesicular clustersNovo formationAtg8BiogenesisMacroautophagyProteinPhysiological concentrationsSec22Atg9Ykt6Tlg2OrganellesAutophagosomes
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