1UAZ

Crystal structure of archaerhodopsin-1

• PDB DOI: https://doi.org/10.2210/pdb1UAZ/pdb

• Classification: PROTON TRANSPORT
• Organism(s): Halorubrum ezzemoulense
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMDmpstruc


• Deposited: 2003-03-26 Released: 2003-04-15 
• Deposition Author(s): Enami, N., Okumua, H., Kouyama, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.40 Å
• R-Value Free: 0.282 
• R-Value Work: 0.230 

Starting Model: experimental

Literature

X-ray crystallographic studies of archaerhodopsin

Enami, N., Okumua, H., Kouyama, T.

(2003) J Photosci 9: 320-322

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 55.02 kDa 
• Atom Count: 3,654 
• Modelled Residue Count: 472 
• Deposited Residue Count: 508 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
archaerhodopsin-1	A, B	254	Halorubrum ezzemoulense	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P69051 (Halorubrum ezzemoulense) Explore P69051  Go to UniProtKB:  P69051

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
RET	C [auth A], D [auth B]	RETINAL C20 H28 O NCYCYZXNIZJOKI-OVSJKPMPSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.40 Å
• R-Value Free: 0.282 
• R-Value Work: 0.230 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 128.1	α = 90
b = 128.1	β = 90
c = 117.6	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
XTALVIEW	refinement
CNS	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-04-15 
Deposition Author(s): Enami, N., Okumua, H., Kouyama, T.

Revision History  

• Version 1.0: 2003-04-15
  Type: Initial release
  
• Version 1.1: 2007-10-16
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-30
  Changes: Structure summary