2IY2

Crystal structure of the N-terminal dimer domain of E.coli DsbG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of the Dimerization Domains of the Escherichia Coli Disulfide-Bond Isomerase Enzymes Dsbc and Dsbg

Yeh, S.-M.Koon, N.Squire, C.Metcalf, P.

(2007) Acta Crystallogr.,Sect.D 63: 465

  • DOI: 10.1107/S0907444907003320
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • DsbC and DsbG are periplasmic disulfide-bond isomerases, enzymes that facilitate the folding of secreted proteins with multiple disulfide bonds by catalyzing disulfide-bond rearrangement. Both enzymes also have in vitro chaperone activity. The crysta ...

    DsbC and DsbG are periplasmic disulfide-bond isomerases, enzymes that facilitate the folding of secreted proteins with multiple disulfide bonds by catalyzing disulfide-bond rearrangement. Both enzymes also have in vitro chaperone activity. The crystal structures of these molecules are similar and both are V-shaped homodimeric modular structures. Each dimeric molecule contains two separate C-terminal thioredoxin-fold domains, joined by hinged helical "stalks" to a single N-terminal dimerization domain formed from the N-terminal 67 residues of each monomer. In this work, the crystal structures of the separate DsbC and DsbG dimerization domains have been determined at resolutions of 2.0 and 1.9 A, respectively. The two structures are both similar to the corresponding domains in the full-length molecules, showing that the dimerization domains fold independently of the catalytic portions of the full-length molecules. Localized structural differences between DsbC and DsbG were observed near the dimer interface and may be relevant to the different functions of the two enzymes.


    Organizational Affiliation

    School of Biological Sciences, Auckland University, Auckland, New Zealand.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THIOL DISULFIDE INTERCHANGE PROTEIN DSBG
A, B
72Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: dsbG (ybdP)
Find proteins for P77202 (Escherichia coli (strain K12))
Go to UniProtKB:  P77202
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CD
Query on CD

Download SDF File 
Download CCD File 
A, B
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.196 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 56.842α = 90.00
b = 56.842β = 90.00
c = 42.049γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
CCP4phasing
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-07-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance