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 

wwPDB Validation 3D Report Full Report


This is version 1.3 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

  • 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 a ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein disulfide-isomerase
A, B
238Homo sapiensGene Names: P4HB (ERBA2L, PDI, PDIA1, PO4DB)
EC: 5.3.4.1
Find proteins for P07237 (Homo sapiens)
Go to Gene View: P4HB
Go to UniProtKB:  P07237
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.243 
  • 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
PHASERphasing
REFMACrefinement
ADSCdata collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-19
    Type: Initial release
  • Version 1.1: 2014-03-05
    Type: Database references
  • Version 1.2: 2014-03-19
    Type: Database references
  • Version 1.3: 2014-05-07
    Type: Database references