6FCM

Crystal structure of human PCNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.199 

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
  • Structures With Same Primary Citation

  • 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

    LabEx Inflamex, Sorbonne Paris Cité, Paris, France.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Proliferating cell nuclear antigenA, C, E282Homo sapiensMutation(s): 0 
Gene Names: PCNA
Find proteins for P12004 (Homo sapiens)
Explore P12004 
Go to UniProtKB:  P12004
NIH Common Fund Data Resources
PHAROS  P12004
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.199 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.18α = 90
b = 140.06β = 90
c = 169.97γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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