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- PDB-9c8k: Rabbit Hemorrhagic Disease Virus reinitiation stimulating TURBS R... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9c8k | ||||||
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Title | Rabbit Hemorrhagic Disease Virus reinitiation stimulating TURBS RNA bound to rabbit ribosome | ||||||
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![]() | RNA / viral RNA / ribosome / translation regulation / reinitiation | ||||||
Function / homology | ![]() ribosomal subunit / laminin receptor activity / phagocytic cup / 90S preribosome / translation regulator activity / rough endoplasmic reticulum / laminin binding / gastrulation / cytosolic ribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) ...ribosomal subunit / laminin receptor activity / phagocytic cup / 90S preribosome / translation regulator activity / rough endoplasmic reticulum / laminin binding / gastrulation / cytosolic ribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / mRNA 5'-UTR binding / rRNA processing / positive regulation of canonical Wnt signaling pathway / rhythmic process / ribosome binding / virus receptor activity / ribosomal small subunit assembly / ribosomal small subunit biogenesis / small ribosomal subunit / small ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / perikaryon / cytoplasmic translation / cell differentiation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / mRNA binding / centrosome / apoptotic process / dendrite / synapse / negative regulation of apoptotic process / nucleolus / perinuclear region of cytoplasm / Golgi apparatus / endoplasmic reticulum / RNA binding / zinc ion binding / nucleus / membrane / metal ion binding / plasma membrane / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||
![]() | Sherlock, M.E. / Kieft, J.S. | ||||||
Funding support | ![]()
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![]() | ![]() Title: A conserved class of viral RNA structures regulates translation reinitiation through dynamic ribosome interactions. Authors: Madeline E Sherlock / Conner J Langeberg / Katherine E Segar / Jeffrey S Kieft / ![]() Abstract: Certain viral RNAs encode proteins downstream of their main open reading frame, expressed through "termination-reinitiation" events. In some cases, structures located upstream of the first stop codon ...Certain viral RNAs encode proteins downstream of their main open reading frame, expressed through "termination-reinitiation" events. In some cases, structures located upstream of the first stop codon within these viral RNAs bind the ribosome, inhibiting ribosome recycling and inducing reinitiation. We used bioinformatics methods to identify new examples of viral reinitiation-stimulating RNAs and experimentally verified their secondary structure and function. We determined the structure of a representative viral RNA-ribosome complex using cryoelectron microscopy (cryo-EM). 3D classification and variability analyses reveal that the viral RNA structure can sample a range of conformations while remaining tethered to the ribosome, enabling the ribosome to find a reinitiation start site within a limited range of mRNA sequence. Evaluating the conserved features and constraints of this entire RNA class within the context of the cryo-EM reconstruction provides insight into mechanisms enabling reinitiation, a translation regulation strategy employed by many other viral and eukaryotic systems. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 3.9 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.9 MB | Display | ![]() |
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Full document | ![]() | 2 MB | Display | |
Data in XML | ![]() | 153 KB | Display | |
Data in CIF | ![]() | 251.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 45307MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-Small ribosomal subunit protein ... , 4 types, 4 molecules AORY
#1: Protein | Mass: 32883.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#15: Protein | Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#18: Protein | Mass: 15578.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: Protein | Mass: 15463.333 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+Protein , 22 types, 22 molecules BFGHIJKLMNQSUVWXZbcdfg
-40S ribosomal protein ... , 7 types, 7 molecules CDEPTae
#3: Protein | Mass: 31376.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#4: Protein | Mass: 26729.369 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#5: Protein | Mass: 29512.756 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 17076.207 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#20: Protein | Mass: 16091.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#27: Protein | Mass: 13047.532 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#31: Protein | Mass: 6668.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-RNA chain , 2 types, 2 molecules 12
#34: RNA chain | Mass: 602776.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#35: RNA chain | Mass: 29219.326 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
-Non-polymers , 2 types, 76 molecules 


#36: Chemical | ChemComp-MG / #37: Chemical | |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-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: Rabbit Hemorrhagic Disease Virus reinitiation stimulating TURBS RNA bound to rabbit ribosome Type: RIBOSOME / Entity ID: #1-#35 / Source: NATURAL |
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Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 / Details: 20 mM Tris-HCl pH 7.5, 2 mM MgOAc2, 150 mM KCl |
Specimen | Conc.: 1.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: 250 nM ribosome, 1 uM RHDV RNA |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 278 K |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 400 nm |
Image recording | Electron dose: 49.94 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 2 / Num. of real images: 6589 |
EM imaging optics | Energyfilter name: TFS Selectris / Energyfilter slit width: 10 eV |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 61643 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 285.94 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
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