1JGZ

Photosynthetic Reaction Center Mutant With Tyr M 76 Replaced With Lys


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Individual interactions influence the crystalline order for membrane proteins.

Camara-Artigas, A.Magee, C.L.Williams, J.C.Allen, J.P.

(2001) Acta Crystallogr D Biol Crystallogr 57: 1281-1286

  • DOI: 10.1107/s090744490101109x
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The role of contact interactions in the crystallization of membrane proteins was assessed by mutation of amino-acid residues on the surface of the reaction center from Rhodobacter sphaeroides. Five single-site mutants were constructed, with changes i ...

    The role of contact interactions in the crystallization of membrane proteins was assessed by mutation of amino-acid residues on the surface of the reaction center from Rhodobacter sphaeroides. Five single-site mutants were constructed, with changes in contact regions found in the trigonal and tetragonal forms but not the orthorhombic form. Crystallization trials for the tetragonal form yielded either no crystals or crystals with an altered morphology, whereas crystals grew in the other two forms, indicating that these interactions are essential for the stability of the tetragonal crystals. Changes in the structures determined by X-ray diffraction of trigonal crystals for each mutant were related to the quality of the diffraction. Significant differences in the resolution limit of the crystals were associated with the loss of specific interactions between neighboring proteins. The results suggest that the contact regions are crucial for obtaining highly ordered crystals of membrane proteins.


    Related Citations: 
    • Specific Alteration of the Oxidation Potential of the Electron Donor in Reaction Centers from Rhodobacter sphaeroides
      Lin, X., Murchison, H.A., Nagarajan, V., Parson, W.W., Allen, J.P., Willians, J.C.
      (1994) Proc Natl Acad Sci U S A 91: 10265

    Organizational Affiliation

    Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-1604, USA.



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
inferred by homology
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Photosynthetic Reaction Centers
Protein: 
Photosynthetic Reaction Center
Find proteins for P0C0Y8 (Rhodobacter sphaeroides)
Go to UniProtKB:  P0C0Y8

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Photosynthetic Reaction Center M subunit
M
307Rhodobacter sphaeroidesMutation(s): 1 
Gene Names: pufM
Membrane protein
inferred by homology
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Photosynthetic Reaction Centers
Protein: 
Photosynthetic Reaction Center
Find proteins for P0C0Y9 (Rhodobacter sphaeroides)
Go to UniProtKB:  P0C0Y9

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Photosynthetic Reaction Center H subunit
H
260Rhodobacter sphaeroidesMutation(s): 0 
Gene Names: puhA
Membrane protein
inferred by homology
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 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CDL
Query on CDL

Download CCD File 
M
CARDIOLIPIN
C81 H156 O17 P2
XVTUQDWPJJBEHJ-KZCWQMDCSA-L
 Ligand Interaction
BCL
Query on BCL

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

Download CCD File 
L, M
BACTERIOPHEOPHYTIN A
C55 H76 N4 O6
KWOZSBGNAHVCKG-SZQBJALDSA-N
 Ligand Interaction
U10
Query on U10

Download CCD File 
M
UBIQUINONE-10
C59 H90 O4
ACTIUHUUMQJHFO-UPTCCGCDSA-N
 Ligand Interaction
SPO
Query on SPO

Download CCD File 
M
SPHEROIDENE
C41 H60 O
FJOCMTHZSURUFA-KXCOHNEYSA-N
 Ligand Interaction
FE
Query on FE

Download CCD File 
M
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.215 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.61α = 90
b = 142.61β = 90
c = 187.61γ = 120
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
CCP4data scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-09-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance