1JVL

Azurin dimer, covalently crosslinked through bis-maleimidomethylether


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Dramatic modulation of electron transfer in protein complexes by crosslinking

van Amsterdam, I.M.C.Ubbink, M.Einsle, O.Messerschmidt, A.Merli, A.Cavazzini, D.Rossi, G.L.Canters, G.W.

(2002) Nat Struct Biol 9: 48-52

  • DOI: 10.1038/nsb736
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The transfer of electrons between proteins is an essential step in biological energy production. Two protein redox partners are often artificially crosslinked to investigate the poorly understood mechanism by which they interact. To better understand ...

    The transfer of electrons between proteins is an essential step in biological energy production. Two protein redox partners are often artificially crosslinked to investigate the poorly understood mechanism by which they interact. To better understand the effect of crosslinking on electron transfer rates, we have constructed dimers of azurin by crosslinking the monomers. The measured electron exchange rates, combined with crystal structures of the dimers, demonstrate that the length of the linker can have a dramatic effect on the structure of the dimer and the electron transfer rate. The presence of ordered water molecules in the protein-protein interface may considerably influence the electronic coupling between redox centers.


    Related Citations: 
    • Effects of Dimerization on Protein Electron Transfer
      van Amsterdam, I.M.C., Ubbink, M., Jeuken, L.J.C., Verbeet, M.P., Einsle, O., Messerschmidt, A., Canters, G.W.
      (2001) Chemistry 7: 2398

    Organizational Affiliation

    Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, the Netherlands.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AzurinA, B128Pseudomonas aeruginosaMutation(s): 1 
Gene Names: azu
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
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OPP
Query on OPP

Download CCD File 
B
1-[PYRROL-1-YL-2,5-DIONE-METHOXYMETHYL]-PYRROLE-2,5-DIONE
C10 H8 N2 O5
UTRLJOWPWILGSB-UHFFFAOYSA-N
 Ligand Interaction
144
Query on 144

Download CCD File 
A, B
TRIS-HYDROXYMETHYL-METHYL-AMMONIUM
C4 H12 N O3
DRDCQJADRSJFFD-UHFFFAOYSA-N
 Ligand Interaction
CU
Query on CU

Download CCD File 
A, B
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
NI
Query on NI

Download CCD File 
A, B
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.190 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.605α = 90
b = 48.605β = 90
c = 284.809γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-04
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance