+Open data
-Basic information
Entry | Database: PDB / ID: 5h64 | ||||||||||||||||||
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Title | Cryo-EM structure of mTORC1 | ||||||||||||||||||
Components |
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Keywords | TRANSFERASE / cryo structure mTOR complex | ||||||||||||||||||
Function / homology | Function and homology information RNA polymerase III type 2 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of pentose-phosphate shunt / T-helper 1 cell lineage commitment / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / cellular response to leucine starvation / TFIIIC-class transcription factor complex binding / TORC2 complex ...RNA polymerase III type 2 promoter sequence-specific DNA binding / positive regulation of cytoplasmic translational initiation / RNA polymerase III type 1 promoter sequence-specific DNA binding / positive regulation of pentose-phosphate shunt / T-helper 1 cell lineage commitment / regulation of locomotor rhythm / positive regulation of wound healing, spreading of epidermal cells / cellular response to leucine starvation / TFIIIC-class transcription factor complex binding / TORC2 complex / heart valve morphogenesis / regulation of membrane permeability / negative regulation of lysosome organization / RNA polymerase III type 3 promoter sequence-specific DNA binding / TORC1 complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / calcineurin-NFAT signaling cascade / regulation of autophagosome assembly / TORC1 signaling / positive regulation of odontoblast differentiation / voluntary musculoskeletal movement / regulation of osteoclast differentiation / positive regulation of keratinocyte migration / cellular response to L-leucine / MTOR signalling / Amino acids regulate mTORC1 / cellular response to nutrient / energy reserve metabolic process / Energy dependent regulation of mTOR by LKB1-AMPK / nucleus localization / ruffle organization / protein serine/threonine kinase inhibitor activity / negative regulation of cell size / cellular response to osmotic stress / positive regulation of osteoclast differentiation / enzyme-substrate adaptor activity / anoikis / cardiac muscle cell development / positive regulation of transcription by RNA polymerase III / negative regulation of protein localization to nucleus / regulation of myelination / negative regulation of calcineurin-NFAT signaling cascade / Macroautophagy / regulation of cell size / negative regulation of macroautophagy / lysosome organization / positive regulation of oligodendrocyte differentiation / positive regulation of actin filament polymerization / protein kinase activator activity / positive regulation of myotube differentiation / behavioral response to pain / TOR signaling / oligodendrocyte differentiation / mTORC1-mediated signalling / germ cell development / Constitutive Signaling by AKT1 E17K in Cancer / social behavior / cellular response to nutrient levels / CD28 dependent PI3K/Akt signaling / positive regulation of phosphoprotein phosphatase activity / positive regulation of translational initiation / neuronal action potential / HSF1-dependent transactivation / positive regulation of TOR signaling / positive regulation of G1/S transition of mitotic cell cycle / positive regulation of epithelial to mesenchymal transition / regulation of macroautophagy / endomembrane system / 'de novo' pyrimidine nucleobase biosynthetic process / response to amino acid / positive regulation of lipid biosynthetic process / phagocytic vesicle / positive regulation of lamellipodium assembly / heart morphogenesis / regulation of cellular response to heat / cytoskeleton organization / cardiac muscle contraction / positive regulation of stress fiber assembly / cellular response to amino acid starvation / T cell costimulation / cellular response to starvation / positive regulation of endothelial cell proliferation / positive regulation of glycolytic process / protein serine/threonine kinase activator activity / response to nutrient levels / post-embryonic development / negative regulation of autophagy / response to nutrient / 14-3-3 protein binding / VEGFR2 mediated vascular permeability / positive regulation of translation / positive regulation of peptidyl-threonine phosphorylation / regulation of signal transduction by p53 class mediator / Regulation of PTEN gene transcription / regulation of autophagy / regulation of cell growth / regulation of actin cytoskeleton organization / cellular response to glucose stimulus / cellular response to amino acid stimulus / TP53 Regulates Metabolic Genes Similarity search - Function | ||||||||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | ||||||||||||||||||
Authors | Yang, H. / Wang, J. / Liu, M. / Chen, X. / Huang, M. / Tan, D. / Dong, M. / Wong, C.C.L. / Wang, J. / Xu, Y. / Wang, H. | ||||||||||||||||||
Funding support | China, 5items
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Citation | Journal: Protein Cell / Year: 2016 Title: 4.4 Å Resolution Cryo-EM structure of human mTOR Complex 1. Authors: Huirong Yang / Jia Wang / Mengjie Liu / Xizi Chen / Min Huang / Dan Tan / Meng-Qiu Dong / Catherine C L Wong / Jiawei Wang / Yanhui Xu / Hong-Wei Wang / Abstract: Mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) integrates signals from growth factors, cellular energy levels, stress and amino acids to control cell growth and proliferation through ...Mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) integrates signals from growth factors, cellular energy levels, stress and amino acids to control cell growth and proliferation through regulating translation, autophagy and metabolism. Here we determined the cryo-electron microscopy structure of human mTORC1 at 4.4 Å resolution. The mTORC1 comprises a dimer of heterotrimer (mTOR-Raptor-mLST8) mediated by the mTOR protein. The complex adopts a hollow rhomboid shape with 2-fold symmetry. Notably, mTORC1 shows intrinsic conformational dynamics. Within the complex, the conserved N-terminal caspase-like domain of Raptor faces toward the catalytic cavity of the kinase domain of mTOR. Raptor shows no caspase activity and therefore may bind to TOS motif for substrate recognition. Structural analysis indicates that FKBP12-Rapamycin may generate steric hindrance for substrate entry to the catalytic cavity of mTORC1. The structure provides a basis to understand the assembly of mTORC1 and a framework to characterize the regulatory mechanism of mTORC1 pathway. | ||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 5h64.cif.gz | 1.1 MB | Display | PDBx/mmCIF format |
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PDB format | pdb5h64.ent.gz | 889.4 KB | Display | PDB format |
PDBx/mmJSON format | 5h64.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/h6/5h64 ftp://data.pdbj.org/pub/pdb/validation_reports/h6/5h64 | HTTPS FTP |
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-Related structure data
Related structure data | 6668MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 289257.969 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: MTOR, FRAP, FRAP1, FRAP2, RAFT1, RAPT1 / Cell line (production host): HEK293F / Production host: Homo sapiens (human) References: UniProt: P42345, non-specific serine/threonine protein kinase #2: Protein | Mass: 149200.016 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RPTOR, KIAA1303, RAPTOR / Cell line (production host): HEK293F / Production host: Homo sapiens (human) / References: UniProt: Q8N122 #3: Protein | Mass: 35910.090 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: MLST8, GBL, LST8 / Cell line (production host): HEK293F / Production host: Homo sapiens (human) / References: UniProt: Q9BVC4 |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: human mTOR complex 1MTORC1 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT | ||||||||||||||||
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Molecular weight | Value: 1 MDa / Experimental value: YES | ||||||||||||||||
Source (natural) | Organism: Homo sapiens (human) | ||||||||||||||||
Source (recombinant) | Organism: Mammalia (mammals) / Plasmid: pCAG | ||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||
Buffer component |
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Specimen | Conc.: 1.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil | ||||||||||||||||
Vitrification | Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 295 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 22500 X / Calibrated magnification: 22500 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm / Calibrated defocus min: 1500 nm / Calibrated defocus max: 2500 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 0.25 sec. / Electron dose: 8.25 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 2997 |
Image scans | Width: 7676 / Height: 7420 / Movie frames/image: 32 / Used frames/image: 0-31 |
-Processing
Software | Name: PHENIX / Version: 1.10.1_2155: / Classification: refinement | ||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 486584 | ||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 115039 / Algorithm: BACK PROJECTION / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Atomic model building | Protocol: OTHER | ||||||||||||||||||||||||||||||||
Refine LS restraints |
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