2X5U

80 microsecond Laue diffraction snapshot from crystals of a photosynthetic reaction centre without illumination.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.250 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Light-induced structural changes in a photosynthetic reaction center caught by Laue diffraction.

Wohri, A.B.Katona, G.Johansson, L.C.Fritz, E.Malmerberg, E.Andersson, M.Vincent, J.Eklund, M.Cammarata, M.Wulff, M.Davidsson, J.Groenhof, G.Neutze, R.

(2010) Science 328: 630-633

  • DOI: 10.1126/science.1186159
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Photosynthetic reaction centers convert the energy content of light into a transmembrane potential difference and so provide the major pathway for energy input into the biosphere. We applied time-resolved Laue diffraction to study light-induced confo ...

    Photosynthetic reaction centers convert the energy content of light into a transmembrane potential difference and so provide the major pathway for energy input into the biosphere. We applied time-resolved Laue diffraction to study light-induced conformational changes in the photosynthetic reaction center complex of Blastochloris viridis. The side chain of TyrL162, which lies adjacent to the special pair of bacteriochlorophyll molecules that are photooxidized in the primary light conversion event of photosynthesis, was observed to move 1.3 angstroms closer to the special pair after photoactivation. Free energy calculations suggest that this movement results from the deprotonation of this conserved tyrosine residue and provides a mechanism for stabilizing the primary charge separation reactions of photosynthesis.


    Organizational Affiliation

    Department of Chemical and Biological Engineering, Chalmers University of Technology, Box 462, SE-40530 Göteborg, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHOTOSYNTHETIC REACTION CENTER CYTOCHROME C SUBUNIT
C
336Blastochloris viridisMutation(s): 0 
Gene Names: pufC (cytC)
Find proteins for P07173 (Blastochloris viridis)
Go to UniProtKB:  P07173
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
REACTION CENTER PROTEIN H CHAIN
H
258Blastochloris viridisMutation(s): 0 
Gene Names: puhA
Find proteins for P06008 (Blastochloris viridis)
Go to UniProtKB:  P06008
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
REACTION CENTER PROTEIN L CHAIN
L
274Blastochloris viridisMutation(s): 0 
Gene Names: pufL
Find proteins for P06009 (Blastochloris viridis)
Go to UniProtKB:  P06009
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
REACTION CENTER PROTEIN M CHAIN
M
324Blastochloris viridisMutation(s): 0 
Gene Names: pufM
Find proteins for P06010 (Blastochloris viridis)
Go to UniProtKB:  P06010
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MQ7
Query on MQ7

Download SDF File 
Download CCD File 
M
MENAQUINONE-7
C46 H64 O2
RAKQPZMEYJZGPI-LJWNYQGCSA-N
 Ligand Interaction
FE2
Query on FE2

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Download CCD File 
M
FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
HEC
Query on HEC

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Download CCD File 
C
HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
 Ligand Interaction
BPB
Query on BPB

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Download CCD File 
L, M
BACTERIOPHEOPHYTIN B
C55 H74 N4 O6
SFKCKJXMIAKQMY-GTTFDWDMSA-N
 Ligand Interaction
BCB
Query on BCB

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Download CCD File 
L, M
BACTERIOCHLOROPHYLL B
C55 H72 Mg N4 O6
QNWPCDKNPGOYNP-LQPBATPMDK
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
FME
Query on FME
H
L-PEPTIDE LINKINGC6 H11 N O3 SMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.250 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 85.693α = 90.00
b = 143.470β = 90.00
c = 177.998γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
Precognitiondata reduction
REFMACrefinement
Epinormdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-05-12
    Type: Initial release
  • Version 1.1: 2012-02-01
    Type: Non-polymer description, Version format compliance
  • Version 1.2: 2017-01-25
    Type: Data collection
  • Version 2.0: 2019-01-23
    Type: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary