5I26

Azurin T30R1, crystal form I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.888 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Determination of nitroxide spin label conformations via PELDOR and X-ray crystallography.

Abdullin, D.Hagelueken, G.Schiemann, O.

(2016) Phys Chem Chem Phys 18: 10428-10437

  • DOI: 10.1039/c6cp01307d
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Pulsed electron-electron double resonance (PELDOR or DEER) in combination with site-directed spin labelling has emerged as an important method for measuring nanometer distance constraints that are used to obtain coarse-grained structures of biomolecu ...

    Pulsed electron-electron double resonance (PELDOR or DEER) in combination with site-directed spin labelling has emerged as an important method for measuring nanometer distance constraints that are used to obtain coarse-grained structures of biomolecules or to follow their conformational changes. Translating measured spin-spin distances between spin labels into structural information requires taking the conformational flexibility of spin label side chains into account. Here, we present an analysis of orientation selective PELDOR data recorded on six singly MTSSL-labelled azurin mutants. The analysis yielded conformational MTSSL ensembles, which are considerably narrower than those predicted using in silico spin labeling methods but match well with spin label conformations found in the corresponding crystal structures. The possible reasons and consequences for predicting spin label conformers in the fold of biomolecules are discussed.


    Organizational Affiliation

    Institute of Physical and Theoretical Chemistry, University of Bonn, Wegelerstr. 12, 53115 Bonn, Germany. schiemann@pc.uni-bonn.de.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Azurin
A, B, C, D
128Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)Mutation(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))
Go to UniProtKB:  P00282
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

Download SDF File 
Download CCD File 
A, B, C, D
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
R1A
Query on R1A
A, B, C, D
L-PEPTIDE LINKINGC12 H21 N2 O3 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.888 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.194 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 86.560α = 90.00
b = 68.750β = 96.75
c = 93.440γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XDSdata scaling
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-02-08 
  • Released Date: 2016-04-13 
  • Deposition Author(s): Hagelueken, G.

Funding OrganizationLocationGrant Number
DFGGermanyCRC 813, A6

Revision History 

  • Version 1.0: 2016-04-13
    Type: Initial release
  • Version 1.1: 2016-04-20
    Type: Database references