6GC8

50S ribosomal subunit assembly intermediate - 50S rec*


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 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

Structural Visualization of the Formation and Activation of the 50S Ribosomal Subunit during In Vitro Reconstitution.

Nikolay, R.Hilal, T.Qin, B.Mielke, T.Burger, J.Loerke, J.Textoris-Taube, K.Nierhaus, K.H.Spahn, C.M.T.

(2018) Mol Cell 70: 881-893.e3

  • DOI: https://doi.org/10.1016/j.molcel.2018.05.003
  • Primary Citation of Related Structures:  
    6GBZ, 6GC0, 6GC4, 6GC6, 6GC7, 6GC8

  • PubMed Abstract: 

    The assembly of ribosomal subunits is an essential prerequisite for protein biosynthesis in all domains of life. Although biochemical and biophysical approaches have advanced our understanding of ribosome assembly, our mechanistic comprehension of this process is still limited. Here, we perform an in vitro reconstitution of the Escherichia coli 50S ribosomal subunit. Late reconstitution products were subjected to high-resolution cryo-electron microscopy and multiparticle refinement analysis to reconstruct five distinct precursors of the 50S subunit with 4.3-3.8 Å resolution. These assembly intermediates define a progressive maturation pathway culminating in a late assembly particle, whose structure is more than 96% identical to a mature 50S subunit. Our structures monitor the formation and stabilization of structural elements in a nascent particle in unprecedented detail and identify the maturation of the rRNA-based peptidyl transferase center as the final critical step along the 50S assembly pathway.


  • Organizational Affiliation

    Institut für Medizinische Physik und Biophysik, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.


Macromolecules

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L2271Escherichia coli K-12Mutation(s): 0 
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L3209Escherichia coli K-12Mutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L4201Escherichia coli K-12Mutation(s): 0 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L5177Escherichia coli K-12Mutation(s): 0 
UniProt
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L6176Escherichia coli K-12Mutation(s): 0 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L954Escherichia coli K-12Mutation(s): 0 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L13I [auth J]142Escherichia coli K-12Mutation(s): 0 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L14J [auth K]122Escherichia coli K-12Mutation(s): 0 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L15K [auth L]143Escherichia coli K-12Mutation(s): 0 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L16L [auth M]136Escherichia coli K-12Mutation(s): 0 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L17M [auth N]120Escherichia coli K-12Mutation(s): 0 
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L18N [auth O]116Escherichia coli K-12Mutation(s): 0 
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L19O [auth P]114Escherichia coli K-12Mutation(s): 0 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L20P [auth Q]117Escherichia coli K-12Mutation(s): 0 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L21Q [auth R]103Escherichia coli K-12Mutation(s): 0 
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L22R [auth S]110Escherichia coli K-12Mutation(s): 0 
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L23S [auth T]93Escherichia coli K-12Mutation(s): 0 
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L24T [auth U]102Escherichia coli K-12Mutation(s): 0 
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L25U [auth V]94Escherichia coli K-12Mutation(s): 0 
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Find proteins for P68919 (Escherichia coli (strain K12))
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L27V [auth W]76Escherichia coli K-12Mutation(s): 0 
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L28W [auth X]77Escherichia coli K-12Mutation(s): 0 
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L29X [auth Y]63Escherichia coli K-12Mutation(s): 0 
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L30Y [auth Z]58Escherichia coli K-12Mutation(s): 0 
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Entity ID: 26
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L32Z [auth 0]56Escherichia coli K-12Mutation(s): 0 
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Entity ID: 27
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L33AA [auth 1]50Escherichia coli K-12Mutation(s): 0 
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Entity ID: 28
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L34BA [auth 2]46Escherichia coli K-12Mutation(s): 0 
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Entity ID: 29
MoleculeChains Sequence LengthOrganismDetailsImage
50S ribosomal protein L35CA [auth 3]64Escherichia coli K-12Mutation(s): 0 
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Entity ID: 1
MoleculeChains LengthOrganismImage
23S ribosomal RNA2,904Escherichia coli K-12
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Entity ID: 2
MoleculeChains LengthOrganismImage
5S ribosomal RNA119Escherichia coli K-12
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.11
RECONSTRUCTIONSPIDER14

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyFOR1805
German Research FoundationGermanySFB740

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-20
    Type: Initial release
  • Version 1.1: 2019-12-11
    Changes: Other