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Yorodumi- EMDB-26861: A composite cryo-EM map of the mTORC1-TFEB-Rag-Ragulator complex -
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Basic information
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| Title | A composite cryo-EM map of the mTORC1-TFEB-Rag-Ragulator complex | |||||||||
Map data | A composite map of the symmetric mTORC1-Rag-Ragulator complex | |||||||||
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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 / regulation of TORC1 signaling / TORC2 complex / regulation of membrane permeability / cellular response to leucine starvation / antibacterial innate immune response / TFIIIC-class transcription factor complex binding / heart valve morphogenesis / negative regulation of lysosome organization / TORC1 complex / voluntary musculoskeletal movement / positive regulation of odontoblast differentiation / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / calcineurin-NFAT signaling cascade / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of keratinocyte migration / protein localization to lysosome / regulation of osteoclast differentiation / fibroblast migration / lysosome localization / MTOR signalling / regulation of lysosome organization / energy reserve metabolic process / cellular response to L-leucine / regulation of TOR signaling / regulation of autophagosome assembly / endosome organization / Energy dependent regulation of mTOR by LKB1-AMPK / cellular response to nutrient / Amino acids regulate mTORC1 / cellular response to methionine / TORC2 signaling / positive regulation of osteoclast differentiation / negative regulation of cell size / cellular response to osmotic stress / anoikis / kinase activator activity / cell projection organization / inositol hexakisphosphate binding / Phosphorylated BMAL1:CLOCK (ARNTL:CLOCK) activates expression of core clock genes / protein localization to membrane / cardiac muscle cell development / negative regulation of calcineurin-NFAT signaling cascade / positive regulation of ubiquitin-dependent protein catabolic process / regulation of myelination / negative regulation of protein localization to nucleus / positive regulation of transcription by RNA polymerase III / endosomal transport / azurophil granule membrane / positive regulation of ruffle assembly / regulation of cell size / small GTPase-mediated signal transduction / lysosome organization / negative regulation of macroautophagy / positive regulation of myotube differentiation / Macroautophagy / RHOJ GTPase cycle / Constitutive Signaling by AKT1 E17K in Cancer / RHOQ GTPase cycle / germ cell development / positive regulation of actin filament polymerization / humoral immune response / oligodendrocyte differentiation / CDC42 GTPase cycle / TORC1 signaling / behavioral response to pain / tertiary granule membrane / positive regulation of oligodendrocyte differentiation / TOR signaling / RHOH GTPase cycle / RHOG GTPase cycle / mTORC1-mediated signalling / ficolin-1-rich granule membrane / regulation of receptor recycling / response to amino acid / positive regulation of translational initiation / CD28 dependent PI3K/Akt signaling / RAC2 GTPase cycle / RAC3 GTPase cycle / HSF1-dependent transactivation / regulation of macroautophagy / positive regulation of TOR signaling / protein kinase activator activity / protein serine/threonine kinase inhibitor activity / enzyme-substrate adaptor 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. | |||||||||
| History |
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_26861.map.gz | 700.5 MB | EMDB map data format | |
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| Header (meta data) | emd-26861-v30.xml emd-26861.xml | 27.7 KB 27.7 KB | Display Display | EMDB header |
| Images | emd_26861.png | 92.2 KB | ||
| Filedesc metadata | emd-26861.cif.gz | 9.9 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-26861 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-26861 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7uxhMC ![]() 7ux2C ![]() 7uxcC 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_26861.map.gz / Format: CCP4 / Size: 775.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | A composite map of the symmetric mTORC1-Rag-Ragulator complex | ||||||||||||||||||||||||||||||||||||
| 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
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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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Image processing
| Startup model | Type of model: INSILICO MODEL / In silico model: ab-initio reconstruction by cryoSPARC |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.2) / Number images used: 192332 |
| Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
| Final angle assignment | Type: MAXIMUM LIKELIHOOD |
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About Yorodumi



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