1PZB

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å

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

  • Primary Citation of Related Structures:  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 0.17 ...

    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.,Sect.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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PSEUDOAZURIN
A
123Alcaligenes faecalisN/A
Find proteins for P04377 (Alcaligenes faecalis)
Go to UniProtKB:  P04377
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 49.950α = 90.00
b = 49.950β = 90.00
c = 98.500γ = 120.00
Software Package:
Software NamePurpose
PROLSQrefinement
PROTINrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1994-08-03 
  • Released Date: 1994-11-30 
  • Deposition Author(s): Petratos, K.

Revision History 

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