2023
ATG9 vesicles comprise the seed membrane of mammalian autophagosomes
Olivas T, Wu Y, Yu S, Luan L, Choi P, Guinn E, Nag S, De Camilli P, Gupta K, Melia T. ATG9 vesicles comprise the seed membrane of mammalian autophagosomes. Journal Of Cell Biology 2023, 222: e202208088. PMID: 37115958, PMCID: PMC10148236, DOI: 10.1083/jcb.202208088.Peer-Reviewed Original ResearchConceptsAtg9 vesiclesMammalian autophagosomesStyrene maleic acid lipid particlesLipid scramblase activityLC3-IIAutophagosomes formAutophagosome membraneMature autophagosomesScramblase activityAutophagosome formationAtg9Lipid transportMembrane growthAutophagosomesNanoscale organizationProtein-mediated transferProteinMembrane surface areaOrganellesVesiclesSeed membraneMembraneLipid particlesLipidsDifferent stages
2021
A model for a partnership of lipid transfer proteins and scramblases in membrane expansion and organelle biogenesis
Ghanbarpour A, Valverde DP, Melia TJ, Reinisch KM. A model for a partnership of lipid transfer proteins and scramblases in membrane expansion and organelle biogenesis. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2101562118. PMID: 33850023, PMCID: PMC8072408, DOI: 10.1073/pnas.2101562118.Peer-Reviewed Original ResearchConceptsLipid transfer proteinEndoplasmic reticulumAutophagy protein ATG2Membrane dynamics processesTransfer proteinOrganelle biogenesisAutophagosome biogenesisCytosolic leafletOrganelle membranesMembrane expansionScramblasesVMP1Lipid homeostasisTMEM41BAtg9BiogenesisBulk lipidsProteinLipidsAtg2GolgiOrganellesReticulumLeafletsHomeostasis
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