2ITA

Solution structure of PufX from Rhodobacter sphaeroides


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 80 
  • Conformers Submitted: 10 
  • Selection Criteria: 10 randomly selected structures from the lowest energy ensemble of 37 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The solution structure of the PufX polypeptide from Rhodobacter sphaeroides.

Tunnicliffe, R.B.Ratcliffe, E.C.Hunter, C.N.Williamson, M.P.

(2006) FEBS Lett 580: 6967-6971

  • DOI: https://doi.org/10.1016/j.febslet.2006.11.065
  • Primary Citation of Related Structures:  
    2ITA, 2NRG

  • PubMed Abstract: 

    PufX organizes the photosynthetic reaction centre-light harvesting complex 1 (RC-LH1) core complex of Rhodobacter sphaeroides and facilitates quinol/quinone exchange between the RC and cytochrome bc(1) complexes. The structure of PufX in organic solvent reveals two hydrophobic helices flanked by unstructured termini and connected by a helical bend. The proposed location of basic residues and tryptophans at the membrane interface orients the C-terminal helix along the membrane normal, with the GXXXG motifs in positions unsuitable as direct drivers of dimerisation of the RC-LH1 complex. The N-terminal helix is predicted to extend approximately 40 Anggstrom along the membrane interface.


  • Organizational Affiliation

    Department of Molecular Biology and Biotechnology, University of Sheffield, Firth Court, Western Bank, Sheffield S10 2TN, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Intrinsic membrane protein pufX70Cereibacter sphaeroidesMutation(s): 0 
Gene Names: pufX
Membrane Entity: Yes 
UniProt
Find proteins for Q7B2Z6 (Cereibacter sphaeroides)
Explore Q7B2Z6 
Go to UniProtKB:  Q7B2Z6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ7B2Z6
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 80 
  • Conformers Submitted: 10 
  • Selection Criteria: 10 randomly selected structures from the lowest energy ensemble of 37 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-12-26
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-09
    Changes: Data collection, Database references, Derived calculations