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- PDB-6d90: Mammalian 80S ribosome with a double translocated CrPV-IRES, P-si... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6d90 | ||||||
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Title | Mammalian 80S ribosome with a double translocated CrPV-IRES, P-site tRNA and eRF1. | ||||||
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![]() | RIBOSOME / mammalian / CrPV IRES | ||||||
Function / homology | ![]() translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity, codon specific / protein methylation / translation release factor activity / sequence-specific mRNA binding / ribosomal subunit / peptidyl-tRNA hydrolase activity ...translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity, codon specific / protein methylation / translation release factor activity / sequence-specific mRNA binding / ribosomal subunit / peptidyl-tRNA hydrolase activity / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / exit from mitosis / optic nerve development / laminin receptor activity / retinal ganglion cell axon guidance / Protein hydroxylation / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / Eukaryotic Translation Termination / phagocytic cup / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / 90S preribosome / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / translational termination / ribosomal small subunit export from nucleus / rough endoplasmic reticulum / laminin binding / translation regulator activity / gastrulation / MDM2/MDM4 family protein binding / cytosolic ribosome / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA-(apurinic or apyrimidinic site) lyase / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / spindle / mRNA 5'-UTR binding / Regulation of expression of SLITs and ROBOs / antimicrobial humoral immune response mediated by antimicrobial peptide / rRNA processing / rhythmic process / positive regulation of canonical Wnt signaling pathway / regulation of translation / large ribosomal subunit / heparin binding / ribosome binding / virus receptor activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / retina development in camera-type eye / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / defense response to Gram-negative bacterium / killing of cells of another organism / perikaryon / cytosolic large ribosomal subunit / cytoplasmic translation / cell differentiation / tRNA binding / mitochondrial inner membrane / postsynaptic density / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / cell division / DNA repair / mRNA binding / apoptotic process / synapse / centrosome / dendrite / negative regulation of apoptotic process / nucleolus / perinuclear region of cytoplasm / endoplasmic reticulum / Golgi apparatus / DNA binding / RNA binding / zinc ion binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||
![]() | Pisareva, V.P. / Pisarev, A.V. / Fernandez, I.S. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Dual tRNA mimicry in the Cricket Paralysis Virus IRES uncovers an unexpected similarity with the Hepatitis C Virus IRES. Authors: Vera P Pisareva / Andrey V Pisarev / Israel S Fernández / ![]() Abstract: Co-opting the cellular machinery for protein production is a compulsory requirement for viruses. The Cricket Paralysis Virus employs an Internal Ribosomal Entry Site (CrPV-IRES) to express its ...Co-opting the cellular machinery for protein production is a compulsory requirement for viruses. The Cricket Paralysis Virus employs an Internal Ribosomal Entry Site (CrPV-IRES) to express its structural genes in the late stage of infection. Ribosome hijacking is achieved by a sophisticated use of molecular mimicry to tRNA and mRNA, employed to manipulate intrinsically dynamic components of the ribosome. Binding and translocation through the ribosome is required for this IRES to initiate translation. We report two structures, solved by single particle electron cryo-microscopy (cryoEM), of a double translocated CrPV-IRES with aminoacyl-tRNA in the peptidyl site (P site) of the ribosome. CrPV-IRES adopts a previously unseen conformation, mimicking the acceptor stem of a canonical E site tRNA. The structures suggest a mechanism for the positioning of the first aminoacyl-tRNA shared with the distantly related Hepatitis C Virus IRES. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 5.6 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 7834MC ![]() 7836C ![]() 6d9jC 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
-Ribosomal protein ... , 19 types, 19 molecules ACJNRVejtEEGGKKMMOORRXXYYddgg
#1: Protein | Mass: 28088.863 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#3: Protein | Mass: 44232.242 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 20288.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#13: Protein | Mass: 24207.285 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#17: Protein | Mass: 21744.230 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#21: Protein | Mass: 14892.505 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#30: Protein | Mass: 15898.932 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#35: Protein | Mass: 11111.032 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#44: Protein | Mass: 21295.590 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#54: Protein | Mass: 31146.607 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#56: Protein | Mass: 22913.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#60: Protein | Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#62: Protein | Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#64: Protein | Mass: 17259.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#67: Protein | Mass: 19213.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#73: Protein | Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#74: Protein | Mass: 15784.549 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#79: Protein | Mass: 7855.052 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#82: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+Protein , 35 types, 35 molecules BFGLOQTUWXYabcdfhklmprsKDDLLQQSSTTUU...
-Large ribosomal subunit protein ... , 5 types, 5 molecules DMPgo
#4: Protein | Mass: 34479.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#12: Protein | Mass: 21950.322 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 21444.221 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#32: Protein | Mass: 14210.088 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#40: Protein | Mass: 12476.973 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-60S ribosomal protein ... , 6 types, 6 molecules EHISZi
#5: Protein | Mass: 33028.336 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#8: Protein | Mass: 21871.418 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#9: Protein | Mass: 24643.057 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#18: Protein | Mass: 20827.561 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: Protein | Mass: 15835.831 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#34: Protein | Mass: 12263.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein/peptide , 1 types, 1 molecules n
#39: Protein/peptide | Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-RNA chain , 6 types, 6 molecules 578234
#45: RNA chain | Mass: 1164731.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#46: RNA chain | Mass: 38385.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#47: RNA chain | Mass: 48545.672 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#49: RNA chain | Mass: 547733.062 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#50: RNA chain | Mass: 28094.645 Da / Num. of mol.: 1 / Source method: obtained synthetically Details: RNA was prepared by in vitro transcription with T7 RNA polymerase Source: (synth.) ![]() ![]() |
#85: RNA chain | Mass: 62075.523 Da / Num. of mol.: 1 / Source method: obtained synthetically Details: RNA was prepared by in vitro transcription with T7 RNA polymerase Source: (synth.) ![]() |
-Small ribosomal subunit protein ... , 2 types, 2 molecules BBPP
#51: Protein | Mass: 33080.184 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#65: Protein | Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-40S ribosomal protein ... , 11 types, 11 molecules CCFFHHIIJJNNWWZZbbccff
#52: Protein | Mass: 30002.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#55: Protein | Mass: 29654.869 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#57: Protein | Mass: 28751.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#58: Protein | Mass: 22168.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#59: Protein | Mass: 24263.387 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#63: Protein | Mass: 14538.987 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#72: Protein | Mass: 9124.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#75: Protein | Mass: 15548.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#77: Protein | Mass: 12987.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#78: Protein | Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#81: Protein | Mass: 14498.884 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-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: Mammalian 80S ribosome in complex with a double translocated CrPV IRES, P-site tRNA and eRF1 Type: RIBOSOME Details: Mammalian 80S ribosome in complex with a double translocated CrPV IRES, P-site tRNA and eRF1 Entity ID: all / Source: NATURAL |
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Molecular weight | Value: 5 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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 |
Image recording | Electron dose: 64 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
EM software |
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CTF correction | Type: NONE | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 75654 / Symmetry type: POINT |