6RBE

State 2 of yeast Tsr1-TAP Rps20-Deltaloop pre-40S particles


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 1.3 of the entry. See complete history


Literature

Conformational proofreading of distant 40S ribosomal subunit maturation events by a long-range communication mechanism.

Mitterer, V.Shayan, R.Ferreira-Cerca, S.Murat, G.Enne, T.Rinaldi, D.Weigl, S.Omanic, H.Gleizes, P.E.Kressler, D.Plisson-Chastang, C.Pertschy, B.

(2019) Nat Commun 10: 2754-2754

  • DOI: https://doi.org/10.1038/s41467-019-10678-z
  • Primary Citation of Related Structures:  
    6RBD, 6RBE

  • PubMed Abstract: 

    Eukaryotic ribosomes are synthesized in a hierarchical process driven by a plethora of assembly factors, but how maturation events at physically distant sites on pre-ribosomes are coordinated is poorly understood. Using functional analyses and cryo-EM, we show that ribosomal protein Rps20 orchestrates communication between two multi-step maturation events across the pre-40S subunit. Our study reveals that during pre-40S maturation, formation of essential contacts between Rps20 and Rps3 permits assembly factor Ltv1 to recruit the Hrr25 kinase, thereby promoting Ltv1 phosphorylation. In parallel, a deeply buried Rps20 loop reaches to the opposite pre-40S side, where it stimulates Rio2 ATPase activity. Both cascades converge to the final maturation steps releasing Rio2 and phosphorylated Ltv1. We propose that conformational proofreading exerted via Rps20 constitutes a checkpoint permitting assembly factor release and progression of pre-40S maturation only after completion of all earlier maturation steps.


  • Organizational Affiliation

    Institute for Molecular Biosciences, University of Graz, Humboldtstrasse 50, 8010, Graz, Austria.


Macromolecules

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S0-AB [auth A]252Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S1-AC [auth B]255Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S2D [auth C]254Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S4-A261Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S6-AF [auth G]236Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S7-AG [auth H]190Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S8-AH [auth I]200Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S9-AI [auth J]197Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S11-AJ [auth L]156Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S13K [auth N]151Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S14-AL [auth O]137Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S17-AM [auth R]136Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S21-AN [auth V]87Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S22-AO [auth W]130Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S23-AP [auth X]145Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S24-AQ [auth Y]135Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S27-AR [auth b]82Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S29-AS [auth d]56Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S30-AT [auth e]63Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 21
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S3U [auth D]240Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 22
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S5V [auth F]225Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 23
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S10-AW [auth K]105Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 24
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S12X [auth M]143Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 25
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S15Y [auth P]142Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 26
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S16-AZ [auth Q]143Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 27
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S18-AAA [auth S]146Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 28
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S19-ABA [auth T]144Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 29
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S20CA [auth U]121Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 30
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S25-ADA [auth Z]108Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 31
MoleculeChains Sequence LengthOrganismDetailsImage
40S ribosomal protein S28-AEA [auth c]67Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 32
MoleculeChains Sequence LengthOrganismDetailsImage
Ubiquitin-40S ribosomal protein S31FA [auth f]152Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 33
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein subunit beta-like proteinGA [auth g]319Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 1
MoleculeChains LengthOrganismImage
18S ribosomal RNAA [auth 2]1,800Saccharomyces cerevisiae S288C
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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
RECONSTRUCTIONRELION2.1
MODEL REFINEMENTREFMAC5
MODEL REFINEMENTPHENIX

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceRIBOMAN

Revision History  (Full details and data files)

  • Version 1.0: 2019-06-26
    Type: Initial release
  • Version 1.1: 2019-07-03
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-18
    Changes: Other
  • Version 1.3: 2020-01-22
    Changes: Database references