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Yorodumi- PDB-6emk: Cryo-EM Structure of Saccharomyces cerevisiae Target of Rapamycin... -
+Open data
-Basic information
Entry | Database: PDB / ID: 6emk | |||||||||||||||
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Title | Cryo-EM Structure of Saccharomyces cerevisiae Target of Rapamycin Complex 2 | |||||||||||||||
Components |
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Keywords | SIGNALING PROTEIN / target of rapamycin / torc2 / FRB domain / Tor2-Lst8 / kinases | |||||||||||||||
Function / homology | Function and homology information PIP3 activates AKT signaling / CD28 dependent PI3K/Akt signaling / regulation of snRNA pseudouridine synthesis / mitochondria-nucleus signaling pathway / Regulation of TP53 Degradation / TORC2 signaling / 1-phosphatidylinositol 4-kinase / 1-phosphatidylinositol 4-kinase activity / establishment or maintenance of actin cytoskeleton polarity / HSF1-dependent transactivation ...PIP3 activates AKT signaling / CD28 dependent PI3K/Akt signaling / regulation of snRNA pseudouridine synthesis / mitochondria-nucleus signaling pathway / Regulation of TP53 Degradation / TORC2 signaling / 1-phosphatidylinositol 4-kinase / 1-phosphatidylinositol 4-kinase activity / establishment or maintenance of actin cytoskeleton polarity / HSF1-dependent transactivation / VEGFR2 mediated vascular permeability / fungal-type cell wall organization / Amino acids regulate mTORC1 / TORC2 complex / TORC1 complex / TORC1 signaling / fungal-type vacuole membrane / cellular response to nitrogen starvation / vacuolar membrane / positive regulation of Rho protein signal transduction / negative regulation of macroautophagy / positive regulation of endocytosis / TOR signaling / phosphatidylinositol-4,5-bisphosphate binding / cytoskeleton organization / protein serine/threonine kinase activator activity / nuclear periphery / negative regulation of autophagy / response to nutrient / regulation of cell growth / regulation of actin cytoskeleton organization / ribosome biogenesis / molecular adaptor activity / non-specific serine/threonine protein kinase / regulation of cell cycle / endosome membrane / Golgi membrane / protein serine kinase activity / protein serine/threonine kinase activity / protein-containing complex binding / signal transduction / mitochondrion / ATP binding / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.9 Å | |||||||||||||||
Authors | Karuppasamy, M. / Kusmider, B. / Oliveira, T.M. / Gaubitz, C. / Prouteau, M. / Loewith, R. / Schaffitzel, C. | |||||||||||||||
Funding support | 4items
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Citation | Journal: Nat Commun / Year: 2017 Title: Cryo-EM structure of Saccharomyces cerevisiae target of rapamycin complex 2. Authors: Manikandan Karuppasamy / Beata Kusmider / Taiana M Oliveira / Christl Gaubitz / Manoel Prouteau / Robbie Loewith / Christiane Schaffitzel / Abstract: The target of rapamycin (TOR) kinase assembles into two distinct multiprotein complexes, conserved across eukaryote evolution. In contrast to TOR complex 1 (TORC1), TORC2 kinase activity is not ...The target of rapamycin (TOR) kinase assembles into two distinct multiprotein complexes, conserved across eukaryote evolution. In contrast to TOR complex 1 (TORC1), TORC2 kinase activity is not inhibited by the macrolide rapamycin. Here, we present the structure of Saccharomyces cerevisiae TORC2 determined by electron cryo-microscopy. TORC2 contains six subunits assembling into a 1.4 MDa rhombohedron. Tor2 and Lst8 form the common core of both TOR complexes. Avo3/Rictor is unique to TORC2, but interacts with the same HEAT repeats of Tor2 that are engaged by Kog1/Raptor in mammalian TORC1, explaining the mutual exclusivity of these two proteins. Density, which we conclude is Avo3, occludes the FKBP12-rapamycin-binding site of Tor2's FRB domain rendering TORC2 rapamycin insensitive and recessing the kinase active site. Although mobile, Avo1/hSin1 further restricts access to the active site as its conserved-region-in-the-middle (CRIM) domain is positioned along an edge of the TORC2 active-site-cleft, consistent with a role for CRIM in substrate recruitment. #1: Journal: Mol Cell / Year: 2015 Title: Molecular Basis of the Rapamycin Insensitivity of Target Of Rapamycin Complex 2. Authors: Christl Gaubitz / Taiana M Oliveira / Manoel Prouteau / Alexander Leitner / Manikandan Karuppasamy / Georgia Konstantinidou / Delphine Rispal / Sandra Eltschinger / Graham C Robinson / ...Authors: Christl Gaubitz / Taiana M Oliveira / Manoel Prouteau / Alexander Leitner / Manikandan Karuppasamy / Georgia Konstantinidou / Delphine Rispal / Sandra Eltschinger / Graham C Robinson / Stéphane Thore / Ruedi Aebersold / Christiane Schaffitzel / Robbie Loewith / Abstract: Target of Rapamycin (TOR) plays central roles in the regulation of eukaryote growth as the hub of two essential multiprotein complexes: TORC1, which is rapamycin-sensitive, and the lesser ...Target of Rapamycin (TOR) plays central roles in the regulation of eukaryote growth as the hub of two essential multiprotein complexes: TORC1, which is rapamycin-sensitive, and the lesser characterized TORC2, which is not. TORC2 is a key regulator of lipid biosynthesis and Akt-mediated survival signaling. In spite of its importance, its structure and the molecular basis of its rapamycin insensitivity are unknown. Using crosslinking-mass spectrometry and electron microscopy, we determined the architecture of TORC2. TORC2 displays a rhomboid shape with pseudo-2-fold symmetry and a prominent central cavity. Our data indicate that the C-terminal part of Avo3, a subunit unique to TORC2, is close to the FKBP12-rapamycin-binding domain of Tor2. Removal of this sequence generated a FKBP12-rapamycin-sensitive TORC2 variant, which provides a powerful tool for deciphering TORC2 function in vivo. Using this variant, we demonstrate a role for TORC2 in G2/M cell-cycle progression. | |||||||||||||||
History |
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-Structure visualization
Movie |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6emk.cif.gz | 1.2 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6emk.ent.gz | 983 KB | Display | PDB format |
PDBx/mmJSON format | 6emk.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6emk_validation.pdf.gz | 517.2 KB | Display | wwPDB validaton report |
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Full document | 6emk_full_validation.pdf.gz | 798.2 KB | Display | |
Data in XML | 6emk_validation.xml.gz | 131 KB | Display | |
Data in CIF | 6emk_validation.cif.gz | 205.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/em/6emk ftp://data.pdbj.org/pub/pdb/validation_reports/em/6emk | HTTPS FTP |
-Related structure data
Related structure data | 3896MC 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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-Components
#1: Protein | Mass: 281915.438 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Gene: TOR2, DRR2, TSC14, YKL203C / Production host: Saccharomyces cerevisiae (brewer's yeast) References: UniProt: P32600, 1-phosphatidylinositol 4-kinase, non-specific serine/threonine protein kinase #2: Protein | Mass: 34077.879 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Gene: LST8, YNL006W, N2005 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P41318 #3: Protein | Mass: 25804.662 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Production host: Saccharomyces cerevisiae (brewer's yeast) #4: Protein | Mass: 47206.457 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Gene: AVO2, YMR068W, YM9916.07 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q04749 #5: Protein | Mass: 131565.453 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) Gene: AVO1, YOL078W, O1110 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q08236 |
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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: Target of rapamycin protein complex 2 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 1.4 MDa / Experimental value: NO |
Source (natural) | Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast) |
Source (recombinant) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/2 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 4 K / Details: 2 - 3 sec blotting |
-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: FLOOD BEAM | |||||||||||||||||||||
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 3500 nm / Nominal defocus min: 1500 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE | |||||||||||||||||||||
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 70 K / Temperature (min): 70 K | |||||||||||||||||||||
Image recording | Imaging-ID: 1
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Image scans | Width: 3710 / Height: 3838 / Movie frames/image: 40 / Used frames/image: 1-40 |
-Processing
Software | Name: REFMAC / Version: 5.8.0158 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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Image processing |
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CTF correction |
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Particle selection |
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Symmetry |
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3D reconstruction |
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Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 5FVM Accession code: 5FVM / Pdb chain residue range: 81-2474 / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Resolution: 7.9→7.9 Å / Cor.coef. Fo:Fc: 0.987 / SU B: 111.293 / SU ML: 0.794 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES
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Solvent computation | Solvent model: PARAMETERS FOR MASK CACLULATION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 295.421 Å2
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Refinement step | Cycle: 1 / Total: 48016 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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