1NZR

CRYSTAL STRUCTURE OF THE AZURIN MUTANT NICKEL-TRP48MET FROM PSEUDOMONAS AERUGINOSA AT 2.2 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Work: 0.170 
  • R-Value Observed: 0.170 

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This is version 1.2 of the entry. See complete history


Literature

Structure of the azurin mutant nickel-Trp48Met from Pseudomonas aeruginosa at 2.2 A resolution.

Tsai, L.C.Sjolin, L.Langer, V.Bonander, N.Karlsson, B.G.Vanngard, T.Hammann, C.Nar, H.

(1995) Acta Crystallogr D Biol Crystallogr 51: 711-717

  • DOI: 10.1107/S0907444995001041
  • Primary Citation of Related Structures:  
    1NZR

  • PubMed Abstract: 
  • The structure of the azurin mutant nickel-Trp48Met from Pseudomonas aeruginosa has been determined by difference Fourier synthesis using phases from the wild-type azurin model. The final crystallographic R value is 0.170 for 17 394 reflections to a resolution of 2 ...

    The structure of the azurin mutant nickel-Trp48Met from Pseudomonas aeruginosa has been determined by difference Fourier synthesis using phases from the wild-type azurin model. The final crystallographic R value is 0.170 for 17 394 reflections to a resolution of 2.2 A. The mutant crystallized in the orthorhombic space group P2(1)2(1)2(1), a = 57.4, b = 80.4, c = 110.3 A. The four molecules in the asymmetric unit are packed as a dimer of dimers. The nickel metal site of this mutant structure is similar to the zinc metal site in the azurin Asp47 mutant. The site-specific mutation was performed at residue Trp48, which is located in the center of the protein in a highly hydrophobic environment, to investigate its suggested role in the long-range electron-transfer pathway between the disulfide bond on one side of the protein to the Cu centre. The structure around the mutation site Met48 showed no significant change compared with the wild-type structure.


    Related Citations: 
    • X-Ray Crystal Structure of the Two Site-Specific Mutants His35Gln and His35Leu of Azurin from Pseudomonas Aeruginosa
      Nar, H., Messerschmidt, A., Huber, R., Van De Kamp, M., Canters, G.W.
      (1991) J Mol Biol 218: 427

    Organizational Affiliation

    Department of Inorganic Chemistry, Chalmers University of Technology, Göteborg, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AZURINA, B, C, D128Pseudomonas aeruginosaMutation(s): 1 
UniProt
Find proteins for P00282 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore P00282 
Go to UniProtKB:  P00282
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00282
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Work: 0.170 
  • R-Value Observed: 0.170 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.4α = 90
b = 80.4β = 90
c = 110.3γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-02-27
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance