1PZA

THE CRYSTAL STRUCTURES OF REDUCED PSEUDOAZURIN FROM ALCALIGENES FAECALIS S-6 AT TWO PH VALUES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The crystal structures of reduced pseudoazurin from Alcaligenes faecalis S-6 at two pH values.

Vakoufari, E.Wilson, K.S.Petratos, K.

(1994) FEBS Lett 347: 203-206

  • DOI: 10.1016/0014-5793(94)00544-3
  • Primary Citation of Related Structures:  
    1PZB, 1PZA

  • PubMed Abstract: 
  • The structures of the reduced (Cu1+) blue-copper protein pseudoazurin from Alcaligenes faecalis strain S-6 are refined at pH 7.8 and 4.4 using X-ray diffraction data to 1.8 A resolution. The final R-factors for the high and low pH structures are 0.178 and 0 ...

    The structures of the reduced (Cu1+) blue-copper protein pseudoazurin from Alcaligenes faecalis strain S-6 are refined at pH 7.8 and 4.4 using X-ray diffraction data to 1.8 A resolution. The final R-factors for the high and low pH structures are 0.178 and 0.177, respectively. Comparing the reduced pseudoazurin at pH 7.8 with the oxidised (Cu2+) molecule, small changes are observed in the vicinity of the copper site and on the protein surface. At pH 4.4 the copper substituent imidazole of His81 rotates away from the metal with a concurrent movement of the latter towards the plane of the remaining three ligands (S gamma-Cys78, N delta 1-His40 and S delta-Met86) thus the geometry of the copper site becomes planar trigonal.


    Related Citations: 
    • Refinement of the Structure of Pseudoazurin from Alcaligenes Faecalis S-6 at 1.55 Angstroms Resolution
      Petratos, K., Dauter, Z., Wilson, K.S.
      (1988) Acta Crystallogr B 44: 628

    Organizational Affiliation

    Institute of Molecular Biology and Biotechnology (I.M.B.B),-F.O.R.T.H., Heraklion, Greece.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PSEUDOAZURIN A123Alcaligenes faecalisMutation(s): 0 
Find proteins for P04377 (Alcaligenes faecalis)
Explore P04377 
Go to UniProtKB:  P04377
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

Download Ideal Coordinates CCD File 
A
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Observed: 0.178 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.9α = 90
b = 49.9β = 90
c = 99.1γ = 120
Software Package:
Software NamePurpose
PROLSQrefinement
PROTINrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 1994-09-06 
  • Released Date: 1994-11-30 
  • Deposition Author(s): Petratos, K.

Revision History  (Full details and data files)

  • Version 1.0: 1994-11-30
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other