6FCN

Crystal structure of human PCNA soaked with p47phox(106-127) peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.22 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Cytosolic PCNA interacts with p47phox and controls NADPH oxidase NOX2 activation in neutrophils.

Ohayon, D.De Chiara, A.Dang, P.M.Thieblemont, N.Chatfield, S.Marzaioli, V.Burgener, S.S.Mocek, J.Candalh, C.Pintard, C.Tacnet-Delorme, P.Renault, G.Lagoutte, I.Favier, M.Walker, F.Hurtado-Nedelec, M.Desplancq, D.Weiss, E.Benarafa, C.Housset, D.Marie, J.C.Frachet, P.El-Benna, J.Witko-Sarsat, V.

(2019) J.Exp.Med. 216: 2669-2687

  • DOI: 10.1084/jem.20180371
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Neutrophils produce high levels of reactive oxygen species (ROS) by NADPH oxidase that are crucial for host defense but can lead to tissue injury when produced in excess. We previously described that proliferating cell nuclear antigen (PCNA), a nucle ...

    Neutrophils produce high levels of reactive oxygen species (ROS) by NADPH oxidase that are crucial for host defense but can lead to tissue injury when produced in excess. We previously described that proliferating cell nuclear antigen (PCNA), a nuclear scaffolding protein pivotal in DNA synthesis, controls neutrophil survival through its cytosolic association with procaspases. We herein showed that PCNA associated with p47phox, a key subunit of NADPH oxidase, and that this association regulated ROS production. Surface plasmon resonance and crystallography techniques demonstrated that the interdomain-connecting loop of PCNA interacted directly with the phox homology ( PX) domain of the p47phox. PCNA inhibition by competing peptides or by T2AA, a small-molecule PCNA inhibitor, decreased NADPH oxidase activation in vitro. Furthermore, T2AA provided a therapeutic benefit in mice during trinitro-benzene-sulfonic acid (TNBS)-induced colitis by decreasing oxidative stress, accelerating mucosal repair, and promoting the resolution of inflammation. Our data suggest that targeting PCNA in inflammatory neutrophils holds promise as a multifaceted antiinflammatory strategy.


    Organizational Affiliation

    Université Grenoble Alpes, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre National de la Recherche Scientifique, Institut de Biologie Structurale, Grenoble, France.,Institut National de la Santé et de la Recherche Médicale U1016, Centre National de la Recherche Scientifique UMR 8104, Université Paris-Descartes, Cochin Institute, Paris, France.,Institut National de la Santé et de la Recherche Médicale U1149, Centre National de la Recherche Scientifique ERL8252, Centre de Recherche sur l'Inflammation, Université Paris Diderot, Faculté de Médecine, Site Xavier Bichat, Paris, France.,Institute of Virology and Immunology, Mittelhäusern, Switzerland.,LabEx Inflamex, Sorbonne Paris Cité, Paris, France.,Department of Pathology, Bichat Hospital, Paris, France.,Institut National de la Santé et de la Recherche Médicale U1016, Centre National de la Recherche Scientifique UMR 8104, Université Paris-Descartes, Cochin Institute, Paris, France veronique.witko@inserm.fr.,Ecole Supérieure de Biotechnologie de Strasbourg, Centre National de la Recherche Scientifique UMR 7242, Université de Strasbourg, Strasbourg, France.,Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Proliferating cell nuclear antigen
A, C, E
282Homo sapiensMutation(s): 0 
Gene Names: PCNA
Find proteins for P12004 (Homo sapiens)
Go to Gene View: PCNA
Go to UniProtKB:  P12004
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.22 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 39.880α = 90.00
b = 140.670β = 90.00
c = 171.770γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-01-30
    Type: Initial release
  • Version 1.1: 2019-09-18
    Type: Data collection, Database references
  • Version 1.2: 2019-11-13
    Type: Database references