2RCR

STRUCTURE OF THE MEMBRANE-BOUND PROTEIN PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the membrane-bound protein photosynthetic reaction center from Rhodobacter sphaeroides.

Chang, C.H.el-Kabbani, O.Tiede, D.Norris, J.Schiffer, M.

(1991) Biochemistry 30: 5352-5360


  • PubMed Abstract: 
  • The structure of the photosynthetic reaction center (RC) from Rhodobacter sphaeroides was determined at 3.1-A resolution by the molecular replacement method, using the Rhodopseudomonas viridis RC as the search structure. Atomic coordinates were refin ...

    The structure of the photosynthetic reaction center (RC) from Rhodobacter sphaeroides was determined at 3.1-A resolution by the molecular replacement method, using the Rhodopseudomonas viridis RC as the search structure. Atomic coordinates were refined with the difference Fourier method and restrained least-squares refinement techniques to a current R factor of 22%. The tertiary structure of the RC complex is stabilized by hydrophobic interactions between the L and M chains, by interactions of the pigments with each other and with the L and M chains, by residues from the L and M chains that coordinate to the Fe2+, by salt bridges that are formed between the L and M chains and the H chain, and possibly by electrostatic forces between the ends of helices. The conserved residues at the N-termini of the L and M chains were identified as recognition sites for the H chain.


    Related Citations: 
    • Comparison of Reaction Centers from Rhodobacter Sphaeroides and Rhodobacter Viridis: Overall Architecture and Protein-Pigment Interactions
      El-Kabbani, O.,Chang, C.-H.,Tiede, D.,Norris, J.,Schiffer, M.
      (1991) Biochemistry 30: 5361


    Organizational Affiliation

    Biological and Medical Research Division, Argonne National Laboratory, Illinois 60439.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHOTOSYNTHETIC REACTION CENTER (L SUBUNIT)
L
281Rhodobacter sphaeroidesMutation(s): 0 
Gene Names: pufL
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Photosynthetic Reaction Centers
Protein: 
Photosynthetic Reaction Center
Find proteins for P0C0Y8 (Rhodobacter sphaeroides)
Go to UniProtKB:  P0C0Y8
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PHOTOSYNTHETIC REACTION CENTER (M SUBUNIT)
M
307Rhodobacter sphaeroidesMutation(s): 0 
Gene Names: pufM
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Photosynthetic Reaction Centers
Protein: 
Photosynthetic Reaction Center
Find proteins for P0C0Y9 (Rhodobacter sphaeroides)
Go to UniProtKB:  P0C0Y9
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PHOTOSYNTHETIC REACTION CENTER (H SUBUNIT)
H
260Rhodobacter sphaeroidesMutation(s): 0 
Gene Names: puhA
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Photosynthetic Reaction Centers
Protein: 
Photosynthetic Reaction Center
Find proteins for P0C0Y7 (Rhodobacter sphaeroides)
Go to UniProtKB:  P0C0Y7
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BCL
Query on BCL

Download SDF File 
Download CCD File 
L, M
BACTERIOCHLOROPHYLL A
C55 H74 Mg N4 O6
DSJXIQQMORJERS-RUUWGSCADZ
 Ligand Interaction
FE
Query on FE

Download SDF File 
Download CCD File 
M
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
BPH
Query on BPH

Download SDF File 
Download CCD File 
L, M
BACTERIOPHEOPHYTIN A
C55 H76 N4 O6
KWOZSBGNAHVCKG-SZQBJALDSA-N
 Ligand Interaction
UQ
Query on UQ

Download SDF File 
Download CCD File 
L, M
Coenzyme Q10, (2Z,6E,10Z,14E,18E,22E,26Z)-isomer
C59 H90 O4
ACTIUHUUMQJHFO-RECDIHICSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 142.200α = 90.00
b = 139.600β = 90.00
c = 78.700γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-07-15
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance