2021
TMEM41B acts as an ER scramblase required for lipoprotein biogenesis and lipid homeostasis
Huang D, Xu B, Liu L, Wu L, Zhu Y, Ghanbarpour A, Wang Y, Chen FJ, Lyu J, Hu Y, Kang Y, Zhou W, Wang X, Ding W, Li X, Jiang Z, Chen J, Zhang X, Zhou H, Li JZ, Guo C, Zheng W, Zhang X, Li P, Melia T, Reinisch K, Chen XW. TMEM41B acts as an ER scramblase required for lipoprotein biogenesis and lipid homeostasis. Cell Metabolism 2021, 33: 1655-1670.e8. PMID: 34015269, DOI: 10.1016/j.cmet.2021.05.006.Peer-Reviewed Original ResearchA 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
2019
ATG2 transports lipids to promote autophagosome biogenesis
Valverde DP, Yu S, Boggavarapu V, Kumar N, Lees JA, Walz T, Reinisch KM, Melia TJ. ATG2 transports lipids to promote autophagosome biogenesis. Journal Of Cell Biology 2019, 218: 1787-1798. PMID: 30952800, PMCID: PMC6548141, DOI: 10.1083/jcb.201811139.Peer-Reviewed Original ResearchConceptsProtein-mediated lipid transferLipid transferLipid transfer proteinTransfers lipidsAutophagosome biogenesisAutophagosome membraneDonor membranesN-terminal fragmentDifferent organellesAutophagy proteinsAutophagosome formationKO cellsContact sitesSpecific machineryLipid homeostasisClear functionAtg2BiogenesisProteinDelivery of lipidsLipidsATG2AMembraneOrganellesAutophagosomes