4ZK0

Psoriasis pathogenesis - Pso p27 constitute a compact structure forming large aggregates. High pH structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Psoriasis pathogenesis - Pso p27 constitutes a compact structure forming large aggregates.

Lysvand, H.Helland, R.Hagen, L.Slupphaug, G.Iversen, O.J.

(2015) Biochem Biophys Rep 2: 132-136

  • DOI: https://doi.org/10.1016/j.bbrep.2015.06.001
  • Primary Citation of Related Structures:  
    4ZK0, 4ZK3

  • PubMed Abstract: 

    Psoriasis is a chronic inflammatory skin disease. The absence of microbial organisms as potential causal agents has given rise to the hypothesis that the inflammation is due to an autoimmune reaction. The defined inflamed areas of the skin lesions argue for an immunological disease with a local production of a causal antigen. Pso p27 is a protein generated in mast cells in psoriatic plaques, but not in uninvolved skin. We recently demonstrated that the Pso p27 is generated by cleavage of SerpinB3 (SCCA1) in the presence of mast cell associated chymase. In this communication we demonstrate by X-ray crystallographic analysis that the cleavage products associate into a complex similar to SCCA1, but with the reactive centre loop inserted into a 5-stranded central β-sheet. Native gel electrophoresis show that these Pso p27 complexes form large aggregates which may be of significance with respect to an immunogenic role of Pso p27.


  • Organizational Affiliation

    Department of Laboratory Medicine, Children's and Women's Health, Faculty of Medicine, Norwegian University of Science and Technology, NTNU, Postbox 8905, N-7491 Trondheim, Norway.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serpin B4390Homo sapiensMutation(s): 0 
Gene Names: SERPINB4PI11SCCA2
UniProt & NIH Common Fund Data Resources
Find proteins for P29508 (Homo sapiens)
Explore P29508 
Go to UniProtKB:  P29508
PHAROS:  P29508
GTEx:  ENSG00000057149 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29508
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.808α = 90
b = 68.273β = 90
c = 105.773γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-07-01
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Database references
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Derived calculations, Refinement description