+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-10133 | ||||||||||||
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Title | cryo-EM structure of mTORC1 bound to active RagA/C GTPases | ||||||||||||
Map data | Cryo-EM structure of mTORC1 bound to active RagA/C GTPases. The Final map for the coordinates. | ||||||||||||
Sample |
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Keywords | small GTPases / mTORC1 activator / roadblock domain / GTPase domain / SIGNALING PROTEIN | ||||||||||||
Function / homology | Function and homology information Gtr1-Gtr2 GTPase complex / FNIP-folliculin RagC/D GAP / 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 / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / TORC2 complex ...Gtr1-Gtr2 GTPase complex / FNIP-folliculin RagC/D GAP / 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 / T-helper 1 cell lineage commitment / positive regulation of pentose-phosphate shunt / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / TORC2 complex / cellular response to leucine starvation / TFIIIC-class transcription factor complex binding / regulation of TORC1 signaling / regulation of membrane permeability / heart valve morphogenesis / negative regulation of lysosome organization / nucleus localization / protein localization to lysosome / RNA polymerase III type 3 promoter sequence-specific DNA binding / TORC1 complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / regulation of TOR signaling / calcineurin-NFAT signaling cascade / regulation of osteoclast differentiation / voluntary musculoskeletal movement / TORC1 signaling / positive regulation of odontoblast differentiation / positive regulation of keratinocyte migration / cellular response to L-leucine / Amino acids regulate mTORC1 / MTOR signalling / cellular response to nutrient / cellular response to methionine / Energy dependent regulation of mTOR by LKB1-AMPK / regulation of autophagosome assembly / energy reserve metabolic process / negative regulation of cell size / ruffle organization / protein localization to membrane / positive regulation of osteoclast differentiation / cellular response to osmotic stress / protein serine/threonine kinase inhibitor activity / enzyme-substrate adaptor activity / anoikis / cardiac muscle cell development / negative regulation of protein localization to nucleus / positive regulation of transcription by RNA polymerase III / negative regulation of calcineurin-NFAT signaling cascade / regulation of myelination / positive regulation of actin filament polymerization / small GTPase-mediated signal transduction / regulation of cell size / negative regulation of macroautophagy / positive regulation of oligodendrocyte differentiation / lysosome organization / Macroautophagy / positive regulation of myotube differentiation / protein kinase activator activity / behavioral response to pain / oligodendrocyte differentiation / Constitutive Signaling by AKT1 E17K in Cancer / mTORC1-mediated signalling / germ cell development / CD28 dependent PI3K/Akt signaling / : / social behavior / HSF1-dependent transactivation / positive regulation of TOR signaling / neuronal action potential / response to amino acid / TOR signaling / 'de novo' pyrimidine nucleobase biosynthetic process / endomembrane system / regulation of macroautophagy / positive regulation of G1/S transition of mitotic cell cycle / positive regulation of translational initiation / cellular response to nutrient levels / positive regulation of lamellipodium assembly / phosphorylation / phagocytic vesicle / positive regulation of lipid biosynthetic process / heart morphogenesis / positive regulation of epithelial to mesenchymal transition / cardiac muscle contraction / regulation of cellular response to heat / protein-membrane adaptor activity / positive regulation of stress fiber assembly / tumor necrosis factor-mediated signaling pathway / cytoskeleton organization / 14-3-3 protein binding / positive regulation of endothelial cell proliferation / T cell costimulation / positive regulation of TORC1 signaling / cellular response to starvation / cellular response to amino acid starvation / post-embryonic development / positive regulation of glycolytic process / RNA splicing / protein serine/threonine kinase activator activity / negative regulation of autophagy Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.2 Å | ||||||||||||
Authors | Anandapadamanaban M / Berndt A | ||||||||||||
Funding support | United Kingdom, 3 items
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Citation | Journal: Science / Year: 2019 Title: Architecture of human Rag GTPase heterodimers and their complex with mTORC1. Authors: Madhanagopal Anandapadamanaban / Glenn R Masson / Olga Perisic / Alex Berndt / Jonathan Kaufman / Chris M Johnson / Balaji Santhanam / Kacper B Rogala / David M Sabatini / Roger L Williams / Abstract: The Rag guanosine triphosphatases (GTPases) recruit the master kinase mTORC1 to lysosomes to regulate cell growth and proliferation in response to amino acid availability. The nucleotide state of Rag ...The Rag guanosine triphosphatases (GTPases) recruit the master kinase mTORC1 to lysosomes to regulate cell growth and proliferation in response to amino acid availability. The nucleotide state of Rag heterodimers is critical for their association with mTORC1. Our cryo-electron microscopy structure of RagA/RagC in complex with mTORC1 shows the details of RagA/RagC binding to the RAPTOR subunit of mTORC1 and explains why only the RagA/RagC nucleotide state binds mTORC1. Previous kinetic studies suggested that GTP binding to one Rag locks the heterodimer to prevent GTP binding to the other. Our crystal structures and dynamics of RagA/RagC show the mechanism for this locking and explain how oncogenic hotspot mutations disrupt this process. In contrast to allosteric activation by RHEB, Rag heterodimer binding does not change mTORC1 conformation and activates mTORC1 by targeting it to lysosomes. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_10133.map.gz | 114.6 MB | EMDB map data format | |
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Header (meta data) | emd-10133-v30.xml emd-10133.xml | 33.9 KB 33.9 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_10133_fsc.xml | 11.4 KB | Display | FSC data file |
Images | emd_10133.png | 263.6 KB | ||
Masks | emd_10133_msk_1.map | 125 MB | Mask map | |
Filedesc metadata | emd-10133.cif.gz | 10.8 KB | ||
Others | emd_10133_additional.map.gz emd_10133_half_map_1.map.gz emd_10133_half_map_2.map.gz | 115.6 MB 98 MB 98.2 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-10133 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10133 | HTTPS FTP |
-Validation report
Summary document | emd_10133_validation.pdf.gz | 947.9 KB | Display | EMDB validaton report |
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Full document | emd_10133_full_validation.pdf.gz | 947.5 KB | Display | |
Data in XML | emd_10133_validation.xml.gz | 18.7 KB | Display | |
Data in CIF | emd_10133_validation.cif.gz | 24.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10133 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10133 | HTTPS FTP |
-Related structure data
Related structure data | 6sb2MC 6s6aC 6s6dC 6sb0C C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_10133.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Cryo-EM structure of mTORC1 bound to active RagA/C GTPases. The Final map for the coordinates. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.43 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_10133_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: The experimental EM map for mTORC1-RagA/C monomer after...
File | emd_10133_additional.map | ||||||||||||
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Annotation | The experimental EM map for mTORC1-RagA/C monomer after focussed classification with signal subtraction. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half1 map from the Refine 3D reconstruction (RELION-3.0.6)
File | emd_10133_half_map_1.map | ||||||||||||
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Annotation | Half1 map from the Refine 3D reconstruction (RELION-3.0.6) | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half2 map from the Refine 3D reconstruction (RELION-3.0.6)
File | emd_10133_half_map_2.map | ||||||||||||
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Annotation | Half2 map from the Refine 3D reconstruction (RELION-3.0.6) | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : cryo-EM structure of mTORC1 bound to active RagA/C complex
+Supramolecule #1: cryo-EM structure of mTORC1 bound to active RagA/C complex
+Supramolecule #2: mTORC1
+Supramolecule #3: RagA/C
+Macromolecule #1: mTOR,Serine/threonine-protein kinase mTOR,mTOR,Serine/threonine-p...
+Macromolecule #2: Target of rapamycin complex subunit LST8
+Macromolecule #3: Ras-related GTP-binding protein A
+Macromolecule #4: Ras-related GTP-binding protein C
+Macromolecule #5: Regulatory-associated protein of mTOR
+Macromolecule #6: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #7: GUANOSINE-5'-DIPHOSPHATE
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.05 mg/mL |
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Buffer | pH: 7 Details: 100mM Tris-HCl pH7.0, 260mM NaCl, 5mM MgCl2, 1mM TCEP |
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Instrument: FEI VITROBOT MARK III |
Details | mTORC1 (mTOR complex 1) is a dimer consists of three proteins: mTOR, mLST8 and RAPTOR. The small GTPases, RagA/C in its active form bind to mTORC1 for activation. We solved the cryo-EM structure of mTORC1 bound to RagA/C. |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 1-22 / Average exposure time: 1.8 sec. / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Initial model |
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Details | Cryo-EM model of mTORC1-RagA/C was refined using REFMAC5 program in CCPEM package, with a composite map of the 3D reconstruction of mTORC1-RagA/C pseudo-monomer (as mentioned in Reconstruction section) of one protomer together with the generated map for the other second protomer of mTORC1-RagA/C. This second protomer of mTORC1-RagA/C map was generated by simply aligning the first 3D reconstructed pseudomonomer map onto the mTORC1 dimer consensus C2 map and then obtained the rotation-translation matrix with CHIMERA and then used Maputils program in CCP4i. From the resulting mTORC1-RagA/C dimer map, the model of mTORC1-RagA/C was built by using previously published structure of apo-mTORC1 (PDB ID 6BCX) and our crystal structure of RagA/C was fitted (PDB ID 6S6A, unreleased). The entire mTORC1-RagA/C final model was refined using REFMAC5 program using the restraints from the crystal structure of RagA/C and previously published mTORC1 structure. Side chains were removed before refinement, since these were not evident in the cryo-EM densities. Separate model refinements were performed against single half-maps, and the resulting models were compared with the other half-maps to confirm the absence of overfitting. | ||||||
Refinement | Space: REAL / Protocol: RIGID BODY FIT / Overall B value: 315 | ||||||
Output model | PDB-6sb2: |