2V9H

Solution Structure of an Escherichia coli YaeT tandem POTRA domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 450 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Fold and Function of Polypeptide Transport-Associated Domains Responsible for Delivering Unfolded Proteins to Membranes.

Knowles, T.J.Jeeves, M.Bobat, S.Dancea, F.Mcclelland, D.M.Palmer, T.Overduin, M.Henderson, I.R.

(2008) Mol Microbiol 68: 1216

  • DOI: https://doi.org/10.1111/j.1365-2958.2008.06225.x
  • Primary Citation of Related Structures:  
    2V9H

  • PubMed Abstract: 

    Membranes of Gram-negative bacteria, mitochondria and chloroplasts receive and fold beta-barrel transmembrane proteins through the action of polypeptide transport-associated (POTRA) domains. In Escherichia coli, folding substrates are inserted into the outer membrane by the essential protein YaeT, a prototypic Omp85 protein. Here, the articulation between tandem POTRA domains in solution is defined by nuclear magnetic resonance (NMR) spectroscopy, indicating an unprecedented juxtaposition. The novel solution orientations of all five POTRA domains are revealed by small-angle X-ray scattering of the entire 46 kDa periplasmic region. NMR titration studies show that strands from YaeT's canonical folding substrate, PhoE, bind non-specifically along alternating sides of its mixed beta sheets, thus providing an ideal platform for helping to fold nascent outer-membrane proteins. Together, this provides the first structural model of how multiple POTRA domains recruit substrates from the periplasmic solution into the outer membrane.


  • Organizational Affiliation

    Cancer Research UK Institute for Cancer Studies, School of Medicine, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
OUTER MEMBRANE PROTEIN ASSEMBLY FACTOR YAET164Escherichia coliMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P0A940 (Escherichia coli (strain K12))
Explore P0A940 
Go to UniProtKB:  P0A940
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A940
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 450 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-05-06
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2020-01-15
    Changes: Data collection, Other