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- PDB-4uje: Regulation of the mammalian elongation cycle by 40S subunit rolli... -
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Basic information
Entry | Database: PDB / ID: 4uje | |||||||||||||||
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Title | Regulation of the mammalian elongation cycle by 40S subunit rolling: a eukaryotic-specific ribosome rearrangement | |||||||||||||||
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![]() | RIBOSOME / TRANSLATION / MAMMALIAN 80S RIBOSOME / ELONGATION CYCLE / POST-TRANSLOCATIONAL STATE / TRNA SELECTION | |||||||||||||||
Function / homology | RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000)![]() | |||||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.9 Å | |||||||||||||||
![]() | Budkevich, T.V. / Giesebrecht, J. / Behrmann, E. / Loerke, J. / Ramrath, D.J.F. / Mielke, T. / Ismer, J. / Hildebrand, P. / Tung, C.-S. / Nierhaus, K.H. ...Budkevich, T.V. / Giesebrecht, J. / Behrmann, E. / Loerke, J. / Ramrath, D.J.F. / Mielke, T. / Ismer, J. / Hildebrand, P. / Tung, C.-S. / Nierhaus, K.H. / Sanbonmatsu, K.Y. / Spahn, C.M.T. | |||||||||||||||
![]() | ![]() Title: Regulation of the mammalian elongation cycle by subunit rolling: a eukaryotic-specific ribosome rearrangement. Authors: Tatyana V Budkevich / Jan Giesebrecht / Elmar Behrmann / Justus Loerke / David J F Ramrath / Thorsten Mielke / Jochen Ismer / Peter W Hildebrand / Chang-Shung Tung / Knud H Nierhaus / ...Authors: Tatyana V Budkevich / Jan Giesebrecht / Elmar Behrmann / Justus Loerke / David J F Ramrath / Thorsten Mielke / Jochen Ismer / Peter W Hildebrand / Chang-Shung Tung / Knud H Nierhaus / Karissa Y Sanbonmatsu / Christian M T Spahn / ![]() ![]() ![]() Abstract: The extent to which bacterial ribosomes and the significantly larger eukaryotic ribosomes share the same mechanisms of ribosomal elongation is unknown. Here, we present subnanometer resolution ...The extent to which bacterial ribosomes and the significantly larger eukaryotic ribosomes share the same mechanisms of ribosomal elongation is unknown. Here, we present subnanometer resolution cryoelectron microscopy maps of the mammalian 80S ribosome in the posttranslocational state and in complex with the eukaryotic eEF1A⋅Val-tRNA⋅GMPPNP ternary complex, revealing significant differences in the elongation mechanism between bacteria and mammals. Surprisingly, and in contrast to bacterial ribosomes, a rotation of the small subunit around its long axis and orthogonal to the well-known intersubunit rotation distinguishes the posttranslocational state from the classical pretranslocational state ribosome. We term this motion "subunit rolling." Correspondingly, a mammalian decoding complex visualized in substates before and after codon recognition reveals structural distinctions from the bacterial system. These findings suggest how codon recognition leads to GTPase activation in the mammalian system and demonstrate that in mammalia subunit rolling occurs during tRNA selection. | |||||||||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 4.6 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 316.1 KB | Display | |
Data in CIF | ![]() | 569.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 2620MC ![]() 2621C ![]() 2622C ![]() 2623C ![]() 2624C ![]() 4cxgC ![]() 4cxhC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-RNA chain , 7 types, 7 molecules AVAWAXB1A2A3A4
#1: RNA chain | Mass: 24485.539 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: FOR MODELING E.COLI TRNAPHE (CHAIN C, PDB ID CODE 3I8G) WAS USED. Source: (natural) ![]() ![]() |
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#2: RNA chain | Mass: 24599.748 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: FOR MODELING E.COLI TRNAPHE (CHAIN D, PDB ID CODE 3I8G) WAS USED. Source: (natural) ![]() ![]() |
#3: RNA chain | Mass: 8527.686 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: FOR MODELING MRNA (CHAIN 1, PDB ID CODE 3I8G) WAS USED. Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#4: RNA chain | Mass: 602776.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#81: RNA chain | Mass: 1625917.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#82: RNA chain | Mass: 62616.344 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#83: RNA chain | Mass: 38998.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+40S RIBOSOMAL PROTEIN ... , 31 types, 31 molecules BABBBCBDBEBFBGBHBIBJBKBLBMBNBOBPBQBRBSBTBUBVBWBXBYBZBaBbBcBdBe
-Protein , 3 types, 3 molecules BfBgCm
#36: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#37: Protein | Mass: 35115.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#75: Protein | Mass: 14758.394 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+60S RIBOSOMAL PROTEIN ... , 42 types, 42 molecules CACBCCCDCECFCGCHCICJCLCMCNCOCPCQCRCSCTCUCVCWCXCYCZCaCbCcCdCe...
-Details
Has protein modification | Y |
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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 |
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Sample preparation
Component | Name: POST-TRANSLOCATIONAL RABBIT 80S RIBOSOME WITH TWO TRNAS AND MRNA BOUND Type: RIBOSOME |
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Buffer solution | Name: 20MM HEPES-KOH, 5MM MGCL2, 100 MM NH4CL, 6 MM BETA-MERCAPTOETHANOL 0.8 MM SPERMIDINE, 0.6 MM SPERMINE pH: 7.5 Details: 20MM HEPES-KOH, 5MM MGCL2, 100 MM NH4CL, 6 MM BETA-MERCAPTOETHANOL 0.8 MM SPERMIDINE, 0.6 MM SPERMINE |
Specimen | Conc.: 1.38 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: HOLEY CARBON |
Vitrification | Instrument: FEI VITROBOT MARK II / Cryogen name: ETHANE Details: VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 80, INSTRUMENT- FEI VITROBOT MARK II, METHOD- BLOT FOR 2 SECONDS BEFORE PLUNGING |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai F30 / Image courtesy: FEI Company |
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Microscopy | Model: FEI TECNAI F30 / Date: Jun 2, 2008 / Details: MINIMAL DOSE SYSTEM |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 39000 X / Calibrated magnification: 65520 X / Nominal defocus max: 4000 nm / Nominal defocus min: 2000 nm / Cs: 2 mm |
Image recording | Electron dose: 20 e/Å2 / Film or detector model: KODAK SO-163 FILM |
Image scans | Num. digital images: 826 |
Radiation wavelength | Relative weight: 1 |
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Processing
EM software |
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CTF correction | Details: DEFOCUS GROUP | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Method: MULTI-REFERENCE TEMPLATE MATCHING / Resolution: 6.9 Å / Num. of particles: 236113 / Nominal pixel size: 1.26 Å / Actual pixel size: 1.26 Å Magnification calibration: CROSS- -CORRELATION WITH KNOWN STRUCTURE Details: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2620. (DEPOSITION ID: 12402). Symmetry type: POINT | ||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: Cross-correlation coefficient / Details: METHOD--MDFIT | ||||||||||||
Refinement | Highest resolution: 6.9 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 6.9 Å
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