1A8L | pdb_00001a8l

PROTEIN DISULFIDE OXIDOREDUCTASE FROM ARCHAEON PYROCOCCUS FURIOSUS

• PDB DOI: https://doi.org/10.2210/pdb1A8L/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Pyrococcus furiosus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1998-03-26 Released: 1999-03-30 
• Deposition Author(s): Ren, B., Tibbelin, G., Pascale, D., Rossi, M., Bartolucci, S., Ladenstein, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.217 (Depositor) 
• R-Value Work: 
  0.192 (Depositor) 
• R-Value Observed: 
  0.192 (Depositor) 

Literature

A protein disulfide oxidoreductase from the archaeon Pyrococcus furiosus contains two thioredoxin fold units.

Ren, B., Tibbelin, G., de Pascale, D., Rossi, M., Bartolucci, S., Ladenstein, R.

(1998) Nat Struct Biol 5: 602-611

• PubMed: 9665175 
• DOI: https://doi.org/10.1038/862
• Primary Citation Related Structures: 
  1A8L


• PubMed Abstract: 
  

  Protein disulfide bond formation is a rate limiting step in protein folding and is catalyzed by enzymes belonging to the protein disulfide oxidoreductase superfamily, including protein disulfide isomerase (PDI) in eucarya and DsbA in bacteria. The first high resolution X-ray crystal structure of a protein disulfide oxidoreductase from the hyperthermophilic archaeon Pyrococcus furiosus reveals structural details that suggest a relation to eukaryotic PDI. The protein consists of two homologous structural units with low sequence identity. Each unit contains a thioredoxin fold with a distinct CXXC active site motif. The accessibilities of both active sites are rather different as are, very likely, their redox properties. The protein shows the ability to catalyze the oxidation of dithiols as well as the reduction of disulfide bridges.

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Organizational Affiliation: 
• Center for Structural Biochemistry, Karolinska Institutet, NOVUM, Huddinge, Sweden.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 25.88 kDa 
• Atom Count: 1,951 
• Modeled Residue Count: 226 
• Deposited Residue Count: 226 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN DISULFIDE OXIDOREDUCTASE	A	226	Pyrococcus furiosus	Mutation(s): 0
UniProt
Find proteins for Q51760 (Pyrococcus furiosus) Explore Q51760  Go to UniProtKB:  Q51760

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.217 (Depositor) 
• R-Value Work:  0.192 (Depositor) 
• R-Value Observed: 0.192 (Depositor) 

Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 110.291	α = 90
b = 110.291	β = 90
c = 68.514	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-03-30 
Deposition Author(s): Ren, B., Tibbelin, G., Pascale, D., Rossi, M., Bartolucci, S., Ladenstein, R.

Revision History  

• Version 1.0: 1999-03-30
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2011-11-16
  Changes: Atomic model
• Version 1.4: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary