1QHJ

X-RAY STRUCTURE OF BACTERIORHODOPSIN GROWN IN LIPIDIC CUBIC PHASES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Protein, lipid and water organization in bacteriorhodopsin crystals: a molecular view of the purple membrane at 1.9 A resolution.

Belrhali, H.Nollert, P.Royant, A.Menzel, C.Rosenbusch, J.P.Landau, E.M.Pebay-Peyroula, E.

(1999) Structure Fold.Des. 7: 909-917

  • Also Cited By: 1QKO, 1QKP

  • PubMed Abstract: 
  • Bacteriorhodopsin (bR) from Halobacterium salinarum is a proton pump that converts the energy of light into a proton gradient that drives ATP synthesis. The protein comprises seven transmembrane helices and in vivo is organized into purple patches, i ...

    Bacteriorhodopsin (bR) from Halobacterium salinarum is a proton pump that converts the energy of light into a proton gradient that drives ATP synthesis. The protein comprises seven transmembrane helices and in vivo is organized into purple patches, in which bR and lipids form a crystalline two-dimensional array. Upon absorption of a photon, retinal, which is covalently bound to Lys216 via a Schiff base, is isomerized to a 13-cis,15-anti configuration. This initiates a sequence of events - the photocycle - during which a proton is transferred from the Schiff base to Asp85, followed by proton release into the extracellular medium and reprotonation from the cytoplasmic side.


    Organizational Affiliation

    ESRF, Grenoble, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (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 2 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
PH1
Query on PH1

Download SDF File 
Download CCD File 
A
1,2-[DI-2,6,10,14-TETRAMETHYL-HEXADECAN-16-OXY]-PROPANE
PHYTANYL MOIETY
C43 H88 O2
ICKFQWWHLUUVMF-FYYCEQFTSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.224 
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 60.800α = 90.00
b = 60.800β = 90.00
c = 110.520γ = 120.00
Software Package:
Software NamePurpose
CCP4data scaling
BASEDmodel building
CNSrefinement
BASEDphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-07-21
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance