Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 47171.27 
• Atom Count: 3292 
• Residue Count: 432 
• Unique protein chains: 1

1EEJ

CRYSTAL STRUCTURE OF THE PROTEIN DISULFIDE BOND ISOMERASE, DSBC, FROM ESCHERICHIA COLI

• DOI: 10.2210/pdb1EEJ/pdb

• Classification: ISOMERASE
• Organism(s): Escherichia coli (strain K12)
• Expression System: Bacteria


• Deposited: 2000-01-31 Released: 2000-08-03 
• Deposition Author(s): McCarthy, A.A., Haebel, P.W., Torronen, A., Rybin, V., Baker, E.N., Metcalf, P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.247 
• R-Value Work: 0.214 

Literature

Crystal structure of the protein disulfide bond isomerase, DsbC, from Escherichia coli.

McCarthy, A.A., Haebel, P.W., Torronen, A., Rybin, V., Baker, E.N., Metcalf, P.

(2000) Nat.Struct.Mol.Biol. 7: 196-199

• PubMed: 10700276 
• DOI: 10.1038/73295
• Primary Citation of Related Structures:  
  1G0T


• PubMed Abstract: 
  

DsbC is one of five Escherichia coli proteins required for disulfide bond formation and is thought to function as a disulfide bond isomerase during oxidative protein folding in the periplasm. DsbC is a 2 x 23 kDa homodimer and has both protein disulfide isomerase and chaperone activity. We report the 1.9 A resolution crystal structure of oxidized DsbC where both Cys-X-X-Cys active sites form disulfide bonds. The molecule consists of separate thioredoxin-like domains joined via hinged linker helices to an N-terminal dimerization domain. The hinges allow relative movement of the active sites, and a broad uncharged cleft between them may be involved in peptide binding and DsbC foldase activities.

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Related Citations: 

• CRYSTALLIZATION OF DSBC, THE DISULFIDE BOND ISOMERASE FROM ESCHERICHIA COLI
  RYBIN, V.,ZAPUN, A.,TORRONEN, A.,RAINA, S.,MISSIAKAS, D.,CREIGHTON, T.,METCALF, P.
  (1996) Acta Crystallogr.,Sect.D 52: 1219




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Organizational Affiliation: 

School of Biological Sciences, Auckland University, Private Bag 92019 Auckland New Zealand.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
THIOL:DISULFIDE INTERCHANGE PROTEIN	A, B	216	Escherichia coli (strain K12)	Mutation(s): 0  Gene Names: dsbC (xprA)
Find proteins for P0AEG6 (Escherichia coli (strain K12)) Go to UniProtKB:  P0AEG6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
MES	B	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.247 
• R-Value Work: 0.214 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 59.336	α = 90.00
b = 78.149	β = 90.00
c = 94.489	γ = 90.00

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-01-31 
• Released Date: 2000-08-03 
• Deposition Author(s): McCarthy, A.A., Haebel, P.W., Torronen, A., Rybin, V., Baker, E.N., Metcalf, P.

Revision History 

• Version 1.0: 2000-08-03
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance