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Basic information
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| Title | A composite map of mTORC1-Rag-Ragultor-4EBP1 on membrane | |||||||||
Map data | A composite map of mLST8-mTOR-Rheb and Raptor-Rag-Ragulator subcomplexes | |||||||||
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Keywords | mTORC1 / 4EBP1 / cell growth / singaling protein / membrane / 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 / regulation of type B pancreatic cell development / Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S / eukaryotic initiation factor 4E 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 / regulation of type B pancreatic cell development / Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S / eukaryotic initiation factor 4E binding / cardiac cell development / positive regulation of SCF-dependent proteasomal ubiquitin-dependent catabolic process / RNA polymerase III type 2 promoter sequence-specific DNA binding / T-helper 1 cell lineage commitment / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / regulation of locomotor rhythm / positive regulation of pentose-phosphate shunt / positive regulation of wound healing, spreading of epidermal cells / regulation of TORC1 signaling / TORC2 complex / cellular response to leucine starvation / TFIIIC-class transcription factor complex binding / positive regulation of odontoblast differentiation / regulation of lysosome organization / TORC1 complex / protein localization to lysosome / negative regulation of lysosome organization / regulation of osteoclast differentiation / RNA polymerase III type 3 promoter sequence-specific DNA binding / positive regulation of keratinocyte migration / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / lysosome localization / MTOR signalling / cellular response to L-leucine / Energy dependent regulation of mTOR by LKB1-AMPK / cellular response to nutrient / regulation of autophagosome assembly / Amino acids regulate mTORC1 / endosome organization / Dengue virus modulates apoptosis / cellular response to methionine / positive regulation of osteoclast differentiation / TORC2 signaling / cellular response to osmotic stress / TORC1 signaling / anoikis / kinase activator activity / protein localization to membrane / inositol hexakisphosphate binding / negative regulation of cold-induced thermogenesis / negative regulation of protein localization to nucleus / positive regulation of ubiquitin-dependent protein catabolic process / lysosome organization / azurophil granule membrane / endosomal transport / regulation of cell size / negative regulation of macroautophagy / regulation of TOR signaling / Macroautophagy / small GTPase-mediated signal transduction / RHOJ GTPase cycle / Constitutive Signaling by AKT1 E17K in Cancer / RHOQ GTPase cycle / behavioral response to pain / positive regulation of transcription by RNA polymerase III / positive regulation of protein kinase activity / regulation of receptor recycling / CDC42 GTPase cycle / response to amino acid / social behavior / tertiary granule membrane / neuronal action potential / TOR signaling / RHOG GTPase cycle / RHOH GTPase cycle / mTORC1-mediated signalling / ficolin-1-rich granule membrane / RAC3 GTPase cycle / HSF1-dependent transactivation / RAC2 GTPase cycle / CD28 dependent PI3K/Akt signaling / positive regulation of TOR signaling / positive regulation of translational initiation / positive regulation of lipid biosynthetic process / protein serine/threonine kinase inhibitor activity / enzyme-substrate adaptor activity / protein kinase activator activity / positive regulation of epithelial to mesenchymal transition / T cell costimulation / vascular endothelial cell response to laminar fluid shear stress / specific granule membrane / positive regulation of G1/S transition of mitotic cell cycle / cellular response to nutrient levels / regulation of cellular response to heat / positive regulation of mitotic cell cycle / 'de novo' pyrimidine nucleobase biosynthetic process / regulation of macroautophagy / cytoskeleton organization / positive regulation of endothelial cell proliferation Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.23 Å | |||||||||
Authors | Cui Z / Hurley J | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nature / Year: 2025Title: Structural basis for mTORC1 activation on the lysosomal membrane. Authors: Zhicheng Cui / Alessandra Esposito / Gennaro Napolitano / Andrea Ballabio / James H Hurley / ![]() Abstract: The mechanistic target of rapamycin complex 1 (mTORC1) integrates growth factor (GF) and nutrient signals to stimulate anabolic processes connected to cell growth and inhibit catabolic processes such ...The mechanistic target of rapamycin complex 1 (mTORC1) integrates growth factor (GF) and nutrient signals to stimulate anabolic processes connected to cell growth and inhibit catabolic processes such as autophagy. GF signalling through the tuberous sclerosis complex regulates the lysosomally localized small GTPase RAS homologue enriched in brain (RHEB). Direct binding of RHEB-GTP to the mTOR kinase subunit of mTORC1 allosterically activates the kinase by inducing a large-scale conformational change. Here we reconstituted mTORC1 activation on membranes by RHEB, RAGs and Ragulator. Cryo-electron microscopy showed that RAPTOR and mTOR interact directly with the membrane. Full engagement of the membrane anchors is required for optimal alignment of the catalytic residues in the mTOR kinase active site. Converging signals from GFs and nutrients drive mTORC1 recruitment to and activation on lysosomal membrane in a four-step process, consisting of (1) RAG-Ragulator-driven recruitment to within ~100 Å of the lysosomal membrane; (2) RHEB-driven recruitment to within ~40 Å; (3) RAPTOR-membrane engagement and intermediate enzyme activation; and (4) mTOR-membrane engagement and full enzyme activation. RHEB and membrane engagement combined leads to full catalytic activation and structurally explains GF and nutrient signal integration at the lysosome. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_47932.map.gz | 289.9 MB | EMDB map data format | |
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| Header (meta data) | emd-47932-v30.xml emd-47932.xml | 33.7 KB 33.7 KB | Display Display | EMDB header |
| Images | emd_47932.png | 57.7 KB | ||
| Filedesc metadata | emd-47932.cif.gz | 10.7 KB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-47932 ftp://data.pdbj.org/pub/emdb/structures/EMD-47932 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9ed4MC ![]() 9ed6C ![]() 9ed7C ![]() 9ed8C 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_47932.map.gz / Format: CCP4 / Size: 343 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | A composite map of mLST8-mTOR-Rheb and Raptor-Rag-Ragulator subcomplexes | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.04 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-Rag-Ragulator-4EBP1 complex on membrane
+Supramolecule #1: The mTORC1-Rag-Ragulator-4EBP1 complex on membrane
+Macromolecule #1: Target of rapamycin complex subunit LST8
+Macromolecule #2: GTP-binding protein Rheb
+Macromolecule #3: Serine/threonine-protein kinase mTOR
+Macromolecule #4: Ras-related GTP-binding protein A
+Macromolecule #5: Ragulator complex protein LAMTOR2
+Macromolecule #6: Ragulator complex protein LAMTOR3
+Macromolecule #7: Ragulator complex protein LAMTOR5
+Macromolecule #8: Eukaryotic translation initiation factor 4E-binding protein 1
+Macromolecule #9: Regulatory-associated protein of mTOR
+Macromolecule #10: Ras-related GTP-binding protein C
+Macromolecule #11: Ragulator complex protein LAMTOR1
+Macromolecule #12: Ragulator complex protein LAMTOR4
+Macromolecule #13: 5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE
+Macromolecule #14: MAGNESIUM ION
+Macromolecule #15: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
+Macromolecule #16: INOSITOL HEXAKISPHOSPHATE
+Macromolecule #17: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #18: 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 | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 30.0 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: 2.0 µm / Nominal defocus min: 0.9 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
