3PFU

N-terminal domain of Thiol:disulfide interchange protein DsbD in its reduced form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Oxidation state-dependent protein-protein interactions in disulfide cascades

Mavridou, D.A.Saridakis, E.Kritsiligkou, P.Goddard, A.D.Stevens, J.M.Ferguson, S.J.Redfield, C.

(2011) J Biol Chem 286: 24943-24956

  • DOI: 10.1074/jbc.M111.236141
  • Primary Citation of Related Structures:  
    3PFU

  • PubMed Abstract: 
  • Bacterial growth and pathogenicity depend on the correct formation of disulfide bonds, a process controlled by the Dsb system in the periplasm of Gram-negative bacteria. Proteins with a thioredoxin fold play a central role in this process. A general feature of thiol-disulfide exchange reactions is the need to avoid a long lived product complex between protein partners ...

    Bacterial growth and pathogenicity depend on the correct formation of disulfide bonds, a process controlled by the Dsb system in the periplasm of Gram-negative bacteria. Proteins with a thioredoxin fold play a central role in this process. A general feature of thiol-disulfide exchange reactions is the need to avoid a long lived product complex between protein partners. We use a multidisciplinary approach, involving NMR, x-ray crystallography, surface plasmon resonance, mutagenesis, and in vivo experiments, to investigate the interaction between the two soluble domains of the transmembrane reductant conductor DsbD. Our results show oxidation state-dependent affinities between these two domains. These observations have implications for the interactions of the ubiquitous thioredoxin-like proteins with their substrates, provide insight into the key role played by a unique redox partner with an immunoglobulin fold, and are of general importance for oxidative protein-folding pathways in all organisms.


    Organizational Affiliation

    Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thiol:disulfide interchange protein dsbDA139Escherichia coli K-12Mutation(s): 0 
Gene Names: dsbDcutA2cycZdipZb4136JW5734
EC: 1.8.1.8
UniProt
Find proteins for P36655 (Escherichia coli (strain K12))
Explore P36655 
Go to UniProtKB:  P36655
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP36655
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DTT
Query on DTT

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]
2,3-DIHYDROXY-1,4-DITHIOBUTANE
C4 H10 O2 S2
VHJLVAABSRFDPM-IMJSIDKUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.186 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.74α = 90
b = 55.552β = 90
c = 105.209γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-05-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2013-05-15
    Changes: Database references
  • Version 1.3: 2017-11-08
    Changes: Refinement description