4JU5

Crystal structure of the dimeric form of the bb' domains of human protein disulfide isomerase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural insight into the dimerization of human protein disulfide isomerase.

Bastos-Aristizabal, S.Kozlov, G.Gehring, K.

(2014) Protein Sci 23: 618-626

  • DOI: 10.1002/pro.2444
  • Primary Citation of Related Structures:  
    4JU5

  • PubMed Abstract: 
  • Protein disulfide isomerases (PDIs) are responsible for catalyzing the proper oxidation and isomerization of disulfide bonds of newly synthesized proteins in the endoplasmic reticulum (ER). Here, it is shown that human PDI (PDIA1) dimerizes in vivo and proposed that the dimerization of PDI has physiological relevance by autoregulating its activity ...

    Protein disulfide isomerases (PDIs) are responsible for catalyzing the proper oxidation and isomerization of disulfide bonds of newly synthesized proteins in the endoplasmic reticulum (ER). Here, it is shown that human PDI (PDIA1) dimerizes in vivo and proposed that the dimerization of PDI has physiological relevance by autoregulating its activity. The crystal structure of the dimeric form of noncatalytic bb' domains of human PDIA1 determined to 2.3 Å resolution revealed that the formation of dimers occludes the substrate binding site and may function as a mechanism to regulate PDI activity in the ER.


    Organizational Affiliation

    Department of Biochemistry, Groupe de recherche axé sur la structure des protéines, McGill University, 3649 Promenade Sir William Osler, Montréal, Québec, H3G 0B1, Canada.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein disulfide-isomeraseA, B238Homo sapiensMutation(s): 0 
Gene Names: P4HBERBA2LPDIPDIA1PO4DB
EC: 5.3.4.1
UniProt & NIH Common Fund Data Resources
Find proteins for P07237 (Homo sapiens)
Explore P07237 
Go to UniProtKB:  P07237
PHAROS:  P07237
GTEx:  ENSG00000185624 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07237
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.521α = 81.85
b = 45.718β = 92.15
c = 55.149γ = 80.02
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
ADSCdata collection

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-02-19
    Type: Initial release
  • Version 1.1: 2014-03-05
    Changes: Database references
  • Version 1.2: 2014-03-19
    Changes: Database references
  • Version 1.3: 2014-05-07
    Changes: Database references
  • Version 1.4: 2019-07-17
    Changes: Data collection, Refinement description