7SSO

Pre translocation 70S ribosome with A/A and P/E tRNA (Structure II-A)

  • Classification: RIBOSOME
  • Organism(s): Escherichia coli K-12
  • Mutation(s): No 

  • Deposited: 2021-11-11 Released: 2022-02-23 
  • Deposition Author(s): Carbone, C.E., Korostelev, A.A.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI), Czech Science Foundation

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Time-resolved cryo-EM visualizes ribosomal translocation with EF-G and GTP.

Carbone, C.E.Loveland, A.B.Gamper Jr., H.B.Hou, Y.M.Demo, G.Korostelev, A.A.

(2021) Nat Commun 12: 7236-7236

  • DOI: https://doi.org/10.1038/s41467-021-27415-0
  • Primary Citation of Related Structures:  
    7SS9, 7SSD, 7SSL, 7SSN, 7SSO, 7SSW, 7ST2, 7ST6, 7ST7

  • PubMed Abstract: 

    During translation, a conserved GTPase elongation factor-EF-G in bacteria or eEF2 in eukaryotes-translocates tRNA and mRNA through the ribosome. EF-G has been proposed to act as a flexible motor that propels tRNA and mRNA movement, as a rigid pawl that biases unidirectional translocation resulting from ribosome rearrangements, or by various combinations of motor- and pawl-like mechanisms. Using time-resolved cryo-EM, we visualized GTP-catalyzed translocation without inhibitors, capturing elusive structures of ribosome•EF-G intermediates at near-atomic resolution. Prior to translocation, EF-G binds near peptidyl-tRNA, while the rotated 30S subunit stabilizes the EF-G GTPase center. Reverse 30S rotation releases Pi and translocates peptidyl-tRNA and EF-G by ~20 Å. An additional 4-Å translocation initiates EF-G dissociation from a transient ribosome state with highly swiveled 30S head. The structures visualize how nearly rigid EF-G rectifies inherent and spontaneous ribosomal dynamics into tRNA-mRNA translocation, whereas GTP hydrolysis and Pi release drive EF-G dissociation.


  • Organizational Affiliation

    RNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA, USA.


Macromolecules

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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L2E [auth b]271Escherichia coli K-12Mutation(s): 0 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L3F [auth c]209Escherichia coli K-12Mutation(s): 0 
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L4G [auth d]201Escherichia coli K-12Mutation(s): 0 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L5H [auth e]177Escherichia coli K-12Mutation(s): 0 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L6I [auth f]176Escherichia coli K-12Mutation(s): 0 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L9J [auth g]149Escherichia coli K-12Mutation(s): 0 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L1K [auth a]223Escherichia coli K-12Mutation(s): 0 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L10L [auth h]131Escherichia coli K-12Mutation(s): 0 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L11M [auth i]141Escherichia coli K-12Mutation(s): 0 
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L13N [auth j]142Escherichia coli K-12Mutation(s): 0 
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L14O [auth k]122Escherichia coli K-12Mutation(s): 0 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L15P [auth l]143Escherichia coli K-12Mutation(s): 0 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L16Q [auth m]136Escherichia coli K-12Mutation(s): 0 
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L17R [auth n]120Escherichia coli K-12Mutation(s): 0 
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L18S [auth o]116Escherichia coli K-12Mutation(s): 0 
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L19T [auth p]114Escherichia coli K-12Mutation(s): 0 
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L20U [auth q]117Escherichia coli K-12Mutation(s): 0 
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L21V [auth r]103Escherichia coli K-12Mutation(s): 0 
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L22W [auth s]110Escherichia coli K-12Mutation(s): 0 
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L23X [auth t]93Escherichia coli K-12Mutation(s): 0 
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L24Y [auth u]102Escherichia coli K-12Mutation(s): 0 
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Entity ID: 26
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L25Z [auth v]94Escherichia coli K-12Mutation(s): 0 
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Entity ID: 27
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L27AA [auth w]75Escherichia coli K-12Mutation(s): 0 
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Entity ID: 28
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L28BA [auth x]77Escherichia coli K-12Mutation(s): 0 
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Entity ID: 29
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L29CA [auth y]63Escherichia coli K-12Mutation(s): 0 
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Entity ID: 30
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L30DA [auth z]58Escherichia coli K-12Mutation(s): 0 
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Entity ID: 31
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L31EA [auth A]66Escherichia coli K-12Mutation(s): 0 
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Entity ID: 32
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L32FA [auth B]56Escherichia coli K-12Mutation(s): 0 
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Entity ID: 33
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L33GA [auth C]50Escherichia coli K-12Mutation(s): 0 
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Entity ID: 34
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L34HA [auth D]46Escherichia coli K-12Mutation(s): 0 
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Entity ID: 35
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L35IA [auth E]64Escherichia coli K-12Mutation(s): 0 
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Entity ID: 36
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L36JA [auth F]38Escherichia coli K-12Mutation(s): 0 
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Entity ID: 39
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S2MA [auth G]225Escherichia coli K-12Mutation(s): 0 
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Entity ID: 40
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S3NA [auth H]206Escherichia coli K-12Mutation(s): 0 
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Entity ID: 41
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S4OA [auth I]205Escherichia coli K-12Mutation(s): 0 
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Entity ID: 42
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S5PA [auth J]157Escherichia coli K-12Mutation(s): 0 
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Entity ID: 43
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S6QA [auth K]100Escherichia coli K-12Mutation(s): 0 
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Entity ID: 44
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S7RA [auth L]151Escherichia coli K-12Mutation(s): 0 
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Entity ID: 45
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S8SA [auth M]129Escherichia coli K-12Mutation(s): 0 
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Entity ID: 46
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S9TA [auth N]127Escherichia coli K-12Mutation(s): 0 
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Entity ID: 47
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S10UA [auth O]98Escherichia coli K-12Mutation(s): 0 
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Entity ID: 48
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S11VA [auth P]116Escherichia coli K-12Mutation(s): 0 
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Entity ID: 49
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S12WA [auth Q]123Escherichia coli K-12Mutation(s): 0 
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Entity ID: 50
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S13XA [auth R]114Escherichia coli K-12Mutation(s): 0 
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Entity ID: 51
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S14YA [auth S]100Escherichia coli K-12Mutation(s): 0 
UniProt
Find proteins for P0AG59 (Escherichia coli (strain K12))
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Entity ID: 52
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S15ZA [auth T]88Escherichia coli K-12Mutation(s): 0 
UniProt
Find proteins for P0ADZ4 (Escherichia coli (strain K12))
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Entity ID: 53
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S16AB [auth U]82Escherichia coli K-12Mutation(s): 0 
UniProt
Find proteins for P0A7T3 (Escherichia coli (strain K12))
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Entity ID: 54
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S17BB [auth V]80Escherichia coli K-12Mutation(s): 0 
UniProt
Find proteins for P0AG63 (Escherichia coli (strain K12))
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Entity ID: 55
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S18CB [auth W]65Escherichia coli K-12Mutation(s): 0 
UniProt
Find proteins for P0A7T7 (Escherichia coli (strain K12))
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Entity ID: 56
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S19DB [auth X]79Escherichia coli K-12Mutation(s): 0 
UniProt
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Entity ID: 57
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S20EB [auth Y]85Escherichia coli K-12Mutation(s): 0 
UniProt
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Entity ID: 58
MoleculeChains Sequence LengthOrganismDetailsImage
30S ribosomal protein S21FB [auth Z]65Escherichia coli K-12Mutation(s): 0 
UniProt
Find proteins for P68679 (Escherichia coli (strain K12))
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Entity ID: 1
MoleculeChains LengthOrganismImage
16S rRNAA [auth 3]1,539Escherichia coli K-12
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Entity ID: 2
MoleculeChains LengthOrganismImage
23S rRNAB [auth 1]2,903Escherichia coli K-12
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Entity ID: 3
MoleculeChains LengthOrganismImage
5S rRNAC [auth 2]120Escherichia coli K-12
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Entity ID: 4
MoleculeChains LengthOrganismImage
tRNA ProD [auth 5]77Escherichia coli K-12
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Entity ID: 37
MoleculeChains LengthOrganismImage
mRNAKA [auth 4]35Escherichia coli K-12
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Entity ID: 38
MoleculeChains LengthOrganismImage
tRNA fMetLA [auth 6]77Escherichia coli K-12
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONFREALIGN
MODEL REFINEMENTRSRef
MODEL REFINEMENTPHENIX

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)Czech RepublicGM127094
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)Czech RepublicF31 HL152650
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)Czech RepublicGM134931
Czech Science FoundationCzech RepublicGJ20-16013Y

Revision History  (Full details and data files)

  • Version 1.0: 2022-02-23
    Type: Initial release
  • Version 1.1: 2024-06-05
    Changes: Data collection