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Yorodumi- EMDB-26857: cryo-EM structure of the mTORC1-TFEB-Rag-Ragulator complex with s... -
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| Title | cryo-EM structure of the mTORC1-TFEB-Rag-Ragulator complex with symmetry expansion | |||||||||
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Keywords | mTORC1 / TFEB / Lysosome biogenesis / Autophagy / SIGNALING PROTEIN | |||||||||
| Function / homology | Function and homology informationregulation of cholesterol import / positive regulation of protein localization to lysosome / regulation of cell-substrate junction organization / regulation of cholesterol efflux / Gtr1-Gtr2 GTPase complex / FNIP-folliculin RagC/D GAP / Ragulator complex / protein localization to cell junction / positive regulation of SCF-dependent proteasomal ubiquitin-dependent catabolic process / RNA polymerase III type 2 promoter sequence-specific DNA binding ...regulation of cholesterol import / positive regulation of protein localization to lysosome / regulation of cell-substrate junction organization / regulation of cholesterol efflux / Gtr1-Gtr2 GTPase complex / FNIP-folliculin RagC/D GAP / Ragulator complex / protein localization to cell junction / positive regulation of SCF-dependent proteasomal ubiquitin-dependent catabolic process / RNA polymerase III type 2 promoter sequence-specific DNA binding / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / regulation of locomotor rhythm / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / positive regulation of wound healing, spreading of epidermal cells / TORC2 complex / regulation of membrane permeability / regulation of TORC1 signaling / cellular response to leucine starvation / TFIIIC-class transcription factor complex binding / heart valve morphogenesis / negative regulation of lysosome organization / TORC1 complex / voluntary musculoskeletal movement / antibacterial innate immune response / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / calcineurin-NFAT signaling cascade / positive regulation of odontoblast differentiation / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of keratinocyte migration / regulation of osteoclast differentiation / protein localization to lysosome / MTOR signalling / regulation of lysosome organization / energy reserve metabolic process / fibroblast migration / cellular response to L-leucine / lysosome localization / regulation of autophagosome assembly / Energy dependent regulation of mTOR by LKB1-AMPK / cellular response to nutrient / regulation of TOR signaling / endosome organization / Amino acids regulate mTORC1 / TORC2 signaling / cellular response to methionine / negative regulation of cell size / positive regulation of osteoclast differentiation / cellular response to osmotic stress / anoikis / cell projection organization / kinase activator activity / inositol hexakisphosphate binding / cardiac muscle cell development / protein localization to membrane / negative regulation of calcineurin-NFAT signaling cascade / positive regulation of ubiquitin-dependent protein catabolic process / negative regulation of protein localization to nucleus / regulation of myelination / positive regulation of transcription by RNA polymerase III / endosomal transport / positive regulation of ruffle assembly / azurophil granule membrane / regulation of cell size / negative regulation of macroautophagy / small GTPase-mediated signal transduction / positive regulation of myotube differentiation / lysosome organization / Macroautophagy / RHOJ GTPase cycle / Constitutive Signaling by AKT1 E17K in Cancer / RHOQ GTPase cycle / positive regulation of actin filament polymerization / germ cell development / oligodendrocyte differentiation / humoral immune response / TORC1 signaling / behavioral response to pain / CDC42 GTPase cycle / positive regulation of oligodendrocyte differentiation / TOR signaling / tertiary granule membrane / RHOH GTPase cycle / positive regulation of translational initiation / mTORC1-mediated signalling / response to amino acid / RHOG GTPase cycle / ficolin-1-rich granule membrane / regulation of receptor recycling / CD28 dependent PI3K/Akt signaling / RAC2 GTPase cycle / HSF1-dependent transactivation / RAC3 GTPase cycle / regulation of macroautophagy / positive regulation of TOR signaling / social behavior / enzyme-substrate adaptor activity / protein kinase activator activity / protein serine/threonine kinase inhibitor activity Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Cui Z / Hurley J | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nature / Year: 2023Title: Structure of the lysosomal mTORC1-TFEB-Rag-Ragulator megacomplex. Authors: Zhicheng Cui / Gennaro Napolitano / Mariana E G de Araujo / Alessandra Esposito / Jlenia Monfregola / Lukas A Huber / Andrea Ballabio / James H Hurley / ![]() Abstract: The transcription factor TFEB is a master regulator of lysosomal biogenesis and autophagy. The phosphorylation of TFEB by the mechanistic target of rapamycin complex 1 (mTORC1) is unique in its ...The transcription factor TFEB is a master regulator of lysosomal biogenesis and autophagy. The phosphorylation of TFEB by the mechanistic target of rapamycin complex 1 (mTORC1) is unique in its mTORC1 substrate recruitment mechanism, which is strictly dependent on the amino acid-mediated activation of the RagC GTPase activating protein FLCN. TFEB lacks the TOR signalling motif responsible for the recruitment of other mTORC1 substrates. We used cryogenic-electron microscopy to determine the structure of TFEB as presented to mTORC1 for phosphorylation, which we refer to as the 'megacomplex'. Two full Rag-Ragulator complexes present each molecule of TFEB to the mTOR active site. One Rag-Ragulator complex is bound to Raptor in the canonical mode seen previously in the absence of TFEB. A second Rag-Ragulator complex (non-canonical) docks onto the first through a RagC GDP-dependent contact with the second Ragulator complex. The non-canonical Rag dimer binds the first helix of TFEB with a RagC-dependent aspartate clamp in the cleft between the Rag G domains. In cellulo mutation of the clamp drives TFEB constitutively into the nucleus while having no effect on mTORC1 localization. The remainder of the 108-amino acid TFEB docking domain winds around Raptor and then back to RagA. The double use of RagC GDP contacts in both Rag dimers explains the strong dependence of TFEB phosphorylation on FLCN and the RagC GDP state. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_26857.map.gz | 43.3 MB | EMDB map data format | |
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| Header (meta data) | emd-26857-v30.xml emd-26857.xml | 31.2 KB 31.2 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_26857_fsc.xml | 19.4 KB | Display | FSC data file |
| Images | emd_26857.png | 86.1 KB | ||
| Filedesc metadata | emd-26857.cif.gz | 9.9 KB | ||
| Others | emd_26857_half_map_1.map.gz emd_26857_half_map_2.map.gz | 720.4 MB 720.4 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-26857 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-26857 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7uxcMC ![]() 7ux2C ![]() 7uxhC C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_26857.map.gz / Format: CCP4 / Size: 775.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.05 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_26857_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_26857_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : The mTORC1-TFEB-Rag-Ragulator complex
+Supramolecule #1: The mTORC1-TFEB-Rag-Ragulator complex
+Macromolecule #1: Serine/threonine-protein kinase mTOR
+Macromolecule #2: Target of rapamycin complex subunit LST8
+Macromolecule #3: Regulatory-associated protein of mTOR
+Macromolecule #4: Ras-related GTP-binding protein A
+Macromolecule #5: Ras-related GTP-binding protein C
+Macromolecule #6: Ragulator complex protein LAMTOR1
+Macromolecule #7: Ragulator complex protein LAMTOR2
+Macromolecule #8: Ragulator complex protein LAMTOR3
+Macromolecule #9: Ragulator complex protein LAMTOR4
+Macromolecule #10: Ragulator complex protein LAMTOR5
+Macromolecule #11: Transcription factor EB
+Macromolecule #12: INOSITOL HEXAKISPHOSPHATE
+Macromolecule #13: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #14: MAGNESIUM ION
+Macromolecule #15: GUANOSINE-5'-DIPHOSPHATE
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
United States, 1 items
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Processing
FIELD EMISSION GUN

