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Open data
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Basic information
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| Title | CryoEM map of the mLST8-Rag-Ragultor subcomplex | |||||||||
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Keywords | mTORC1 / 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 / protein localization to cell junction / positive regulation of pentose-phosphate shunt / TORC2 signaling ...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 pentose-phosphate shunt / TORC2 signaling / TORC2 complex / regulation of TORC1 signaling / protein localization to lysosome / TORC1 complex / regulation of TOR signaling / MTOR signalling / fibroblast migration / Amino acids regulate mTORC1 / lysosome localization / Energy dependent regulation of mTOR by LKB1-AMPK / endosome organization / TORC1 signaling / serine/threonine protein kinase complex / kinase activator activity / cellular response to osmotic stress / protein localization to membrane / endosomal transport / azurophil granule membrane / lysosome organization / small GTPase-mediated signal transduction / Macroautophagy / regulation of cell size / RHOJ GTPase cycle / Constitutive Signaling by AKT1 E17K in Cancer / positive regulation of actin filament polymerization / RHOQ GTPase cycle / TOR signaling / mTORC1-mediated signalling / CDC42 GTPase cycle / tertiary granule membrane / RHOH GTPase cycle / ficolin-1-rich granule membrane / RHOG GTPase cycle / regulation of receptor recycling / CD28 dependent PI3K/Akt signaling / RAC2 GTPase cycle / HSF1-dependent transactivation / RAC3 GTPase cycle / positive regulation of TOR signaling / enzyme-substrate adaptor activity / response to amino acid / positive regulation of lipid biosynthetic process / cellular response to nutrient levels / specific granule membrane / protein-membrane adaptor activity / RAC1 GTPase cycle / cytoskeleton organization / positive regulation of TORC1 signaling / negative regulation of autophagy / cellular response to amino acid starvation / RNA splicing / viral genome replication / guanyl-nucleotide exchange factor activity / cholesterol homeostasis / positive regulation of glycolytic process / cellular response to starvation / protein serine/threonine kinase activator activity / Regulation of PTEN gene transcription / tumor necrosis factor-mediated signaling pathway / VEGFR2 mediated vascular permeability / positive regulation of interleukin-8 production / TP53 Regulates Metabolic Genes / regulation of actin cytoskeleton organization / cellular response to amino acid stimulus / phosphoprotein binding / regulation of cell growth / MAP2K and MAPK activation / positive regulation of protein localization to nucleus / response to virus / GDP binding / late endosome membrane / Regulation of TP53 Degradation / intracellular protein localization / late endosome / glucose homeostasis / PIP3 activates AKT signaling / E3 ubiquitin ligases ubiquitinate target proteins / GTPase binding / positive regulation of cell growth / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / protein-macromolecule adaptor activity / cellular response to hypoxia / molecular adaptor activity / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / lysosome / positive regulation of canonical NF-kappaB signal transduction / endosome membrane / positive regulation of MAPK cascade / intracellular signal transduction / membrane raft Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.98 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_47933.map.gz | 323.6 MB | EMDB map data format | |
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| Header (meta data) | emd-47933-v30.xml emd-47933.xml | 25.9 KB 25.9 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_47933_fsc.xml | 14.9 KB | Display | FSC data file |
| Images | emd_47933.png | 39 KB | ||
| Filedesc metadata | emd-47933.cif.gz | 7.3 KB | ||
| Others | emd_47933_half_map_1.map.gz emd_47933_half_map_2.map.gz | 318.7 MB 318.7 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-47933 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-47933 | HTTPS FTP |
-Validation report
| Summary document | emd_47933_validation.pdf.gz | 1009.7 KB | Display | EMDB validaton report |
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| Full document | emd_47933_full_validation.pdf.gz | 1009.2 KB | Display | |
| Data in XML | emd_47933_validation.xml.gz | 23.7 KB | Display | |
| Data in CIF | emd_47933_validation.cif.gz | 31.2 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-47933 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-47933 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9ed6MC ![]() 9ed4C ![]() 9ed7C ![]() 9ed8C M: atomic model generated by this map C: citing same article ( |
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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_47933.map.gz / Format: CCP4 / Size: 343 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: 1.04 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_47933_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_47933_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : mLST8-Rag-Ragultor subcomplex
+Supramolecule #1: mLST8-Rag-Ragultor subcomplex
+Macromolecule #1: Ras-related GTP-binding protein A
+Macromolecule #2: Ragulator complex protein LAMTOR2
+Macromolecule #3: Ragulator complex protein LAMTOR3
+Macromolecule #4: Ragulator complex protein LAMTOR5
+Macromolecule #5: Target of rapamycin complex subunit LST8
+Macromolecule #6: Ras-related GTP-binding protein C
+Macromolecule #7: Ragulator complex protein LAMTOR1
+Macromolecule #8: Ragulator complex protein LAMTOR4
+Macromolecule #9: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #10: MAGNESIUM ION
+Macromolecule #11: 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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Z (Sec.)
Y (Row.)
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Processing
FIELD EMISSION GUN

