1AP9

X-RAY STRUCTURE OF BACTERIORHODOPSIN FROM MICROCRYSTALS GROWN IN LIPIDIC CUBIC PHASES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.317 
  • R-Value Work: 0.258 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

X-ray structure of bacteriorhodopsin at 2.5 angstroms from microcrystals grown in lipidic cubic phases.

Pebay-Peyroula, E.Rummel, G.Rosenbusch, J.P.Landau, E.M.

(1997) Science 277: 1676-1681


  • PubMed Abstract: 
  • Lipidic cubic phases provide a continuous three-dimensional bilayer matrix that facilitates nucleation and growth of bacteriorhodopsin microcrystals. The crystals diffract x-rays isotropically to 2.0 angstroms. The structure of this light-driven prot ...

    Lipidic cubic phases provide a continuous three-dimensional bilayer matrix that facilitates nucleation and growth of bacteriorhodopsin microcrystals. The crystals diffract x-rays isotropically to 2.0 angstroms. The structure of this light-driven proton pump was solved at a resolution of 2.5 angstroms by molecular replacement, using previous results from electron crystallographic studies as a model. The earlier structure was generally confirmed, but several differences were found, including loop conformations and side chain residues. Eight water molecules are now identified experimentally in the proton pathway. These findings reveal the constituents of the proton translocation pathway in the ground state.


    Related Citations: 
    • Crystallisation of a Polar Protein and Small Molecules from the Aqueous Compartment of Lipidic Cubic Phases
      Landau, E.M.,Rummel, G.,Cowan-Jacob, S.W.,Rosenbusch, J.P.
      (1997) J.Phys.Chem.B 101: 1935


    Organizational Affiliation

    Institut de Biologie Structurale/CEA-CNRS/Université Joseph Fourier, 41 Avenue des Martyrs, F-38027 Grenoble Cedex 1, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BACTERIORHODOPSIN
A
248Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1)Gene Names: bop
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Bacterial and Algal Rhodopsins
Protein: 
Bacteriorhodopsin (BR)
Find proteins for P02945 (Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1))
Go to UniProtKB:  P02945
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RET
Query on RET

Download SDF File 
Download CCD File 
A
RETINAL
C20 H28 O
NCYCYZXNIZJOKI-OVSJKPMPSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.317 
  • R-Value Work: 0.258 
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 61.760α = 90.00
b = 61.760β = 90.00
c = 104.160γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
CCP4data scaling
X-PLORphasing
DENZOdata reduction
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-09-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance