2XKV

Atomic Model of the SRP-FtsY Early Conformation

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 13.5 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 2.0 of the entry. See complete history. 


Literature

Cryo-Em Structure of the E. Coli Translating Ribosome in Complex with Srp and its Receptor.

Estrozi, L.F., Boehringer, D., Shan, S.-O., Ban, N., Schaffitzel, C.

(2011) Nat Struct Mol Biol 18: 88

  • DOI: https://doi.org/10.1038/nsmb.1952
  • Primary Citation of Related Structures:  
    2XKV

  • PubMed Abstract: 

    We report the 'early' conformation of the Escherichia coli signal recognition particle (SRP) and its receptor FtsY bound to the translating ribosome, as determined by cryo-EM. FtsY binds to the tetraloop of the SRP RNA, whereas the NG domains of the SRP protein and FtsY interact weakly in this conformation. Our results suggest that optimal positioning of the SRP RNA tetraloop and the Ffh NG domain leads to FtsY recruitment.

    • Organizational Affiliation: 

    European Molecular Biology Laboratory, Grenoble Outstation, Grenoble, France.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
SIGNAL RECOGNITION PARTICLE PROTEIN294Escherichia coliMutation(s): 0 
EC: 3.6.5.4
UniProt
Find proteins for O07347 (Thermus aquaticus)
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UniProt GroupO07347
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
SIGNAL RECOGNITION PARTICLE PROTEIN69Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0AGD7 (Escherichia coli (strain K12))
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UniProt GroupP0AGD7
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
CELL DIVISION PROTEIN FTSY303Escherichia coliMutation(s): 0 
UniProt
Find proteins for P83749 (Thermus aquaticus)
Explore P83749 
Go to UniProtKB:  P83749
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UniProt GroupP83749
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Entity ID: 2
MoleculeChains LengthOrganismImage
4.5S RNA114Escherichia coli
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 13.5 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONSPIDER

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-12-15
    Type: Initial release
  • Version 1.1: 2011-08-31
    Changes: Database references, Version format compliance
  • Version 1.2: 2013-03-20
    Changes: Other, Refinement description
  • Version 2.0: 2017-08-23
    Changes: Atomic model, Data collection, Derived calculations, Source and taxonomy, Structure summary