1OGV

Lipidic cubic phase crystal structure of the photosynthetic reaction centre from Rhodobacter sphaeroides


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Literature

Lipidic Cubic Phase Crystal Structure of the Photosynthetic Reaction Centre from Rhodobacter Sphaeroides at 2.35 A Resolution

Katona, G.Andreasson, U.Landau, E.M.Andreasson, L.-E.Neutze, R.

(2003) J Mol Biol 331: 681

  • DOI: https://doi.org/10.1016/s0022-2836(03)00751-4
  • Primary Citation of Related Structures:  
    1OGV

  • PubMed Abstract: 

    Well-ordered crystals of the bacterial photosynthetic reaction centre from Rhodobacter sphaeroides were grown from a lipidic cubic phase. Here, we report the type I crystal packing that results from this crystallisation medium, for which 3D crystals grow as stacked 2D crystals, and the reaction centre X-ray structure is refined to 2.35A resolution. In this crystal form, the location of the membrane bilayer could be assigned with confidence. A cardiolipin-binding site is found at the protein-protein interface within the membrane-spanning region, shedding light on the formation of crystal contacts within the membrane. A chloride-binding site was identified in the membrane-spanning region, which suggests a putative site for interaction with the light-harvesting complex I, the cytochrome bc(1) complex or PufX. Comparisons with the X-ray structures of this reaction centre deriving from detergent-based crystals are drawn, indicating that a slight compression occurs in this lipid-rich environment.


  • Organizational Affiliation

    Department of Molecular Biotechnology, Chalmers University of Technology, P.O. Box 462, SE-405 30 Gothenburg, Sweden.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Reaction center protein H chainA [auth H]250Cereibacter sphaeroidesMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P0C0Y7 (Cereibacter sphaeroides)
Explore P0C0Y7 
Go to UniProtKB:  P0C0Y7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0C0Y7
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Reaction center protein L chainB [auth L]281Cereibacter sphaeroidesMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P0C0Y8 (Cereibacter sphaeroides)
Explore P0C0Y8 
Go to UniProtKB:  P0C0Y8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0C0Y8
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Reaction center protein M chainC [auth M]307Cereibacter sphaeroidesMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P0C0Y9 (Cereibacter sphaeroides)
Explore P0C0Y9 
Go to UniProtKB:  P0C0Y9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0C0Y9
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CDL
Query on CDL

Download Ideal Coordinates CCD File 
K [auth M]CARDIOLIPIN
C81 H156 O17 P2
XVTUQDWPJJBEHJ-KZCWQMDCSA-L
BCL
Query on BCL

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D [auth L],
E [auth L],
G [auth M],
H [auth M]
BACTERIOCHLOROPHYLL A
C55 H74 Mg N4 O6
DSJXIQQMORJERS-AGGZHOMASA-M
BPH
Query on BPH

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F [auth L],
I [auth M]
BACTERIOPHEOPHYTIN A
C55 H76 N4 O6
KWOZSBGNAHVCKG-SZQBJALDSA-N
U10
Query on U10

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J [auth M]UBIQUINONE-10
C59 H90 O4
ACTIUHUUMQJHFO-UPTCCGCDSA-N
FE2
Query on FE2

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L [auth M]FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
CL
Query on CL

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M
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.973α = 90
b = 99.973β = 90
c = 237.192γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-08-05
    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: 2019-09-25
    Changes: Advisory, Data collection, Database references, Experimental preparation, Other, Source and taxonomy, Structure summary
  • Version 1.4: 2023-12-13
    Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description