1LXE

CRYSTAL STRUCTURE OF THE CATHELICIDIN MOTIF OF PROTEGRINS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.215 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of the cathelicidin motif of protegrin-3 precursor: structural insights into the activation mechanism of an antimicrobial protein.

Sanchez, J.F.Hoh, F.Strub, M.P.Aumelas, A.Dumas, C.

(2002) Structure 10: 1363-1370

  • DOI: 10.1016/s0969-2126(02)00859-6
  • Primary Citation of Related Structures:  
    1KWI, 1LXE

  • PubMed Abstract: 
  • Cathelicidins are a family of antimicrobial proteins isolated from leucocytes and epithelia cells that contribute to the innate host defense mechanisms in mammalians. Located in the C-terminal part of the holoprotein, the cathelicidin-derived antimicrobial peptide is liberated by a specific protease cleavage ...

    Cathelicidins are a family of antimicrobial proteins isolated from leucocytes and epithelia cells that contribute to the innate host defense mechanisms in mammalians. Located in the C-terminal part of the holoprotein, the cathelicidin-derived antimicrobial peptide is liberated by a specific protease cleavage. Here, we report the X-ray structure of the cathelicidin motif of protegrin-3 solved by MAD phasing using the selenocysteine-labeled protein. Its overall structure represents a fold homologous to the cystatin family and adopts two native states, a monomer, and a domain-swapped dimer. This crystal structure is the first example of a structural characterization of the highly conserved cathelicidin motif and thus provides insights into the possible mechanism of activation of the antimicrobial protegrin peptide.


    Organizational Affiliation

    Centre de Biochimie Structurale, UMR CNRS 5048, UMR 554 INSERM, Université Montpellier I, 15 Avenue Charles Flahault, 34060 Montpellier Cedex, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
protegrin-3 precursorA101Sus scrofaMutation(s): 0 
Gene Names: pg3NPG3
UniProt
Find proteins for P32196 (Sus scrofa)
Explore P32196 
Go to UniProtKB:  P32196
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.215 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.172α = 90
b = 52.172β = 90
c = 135.483γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
AUTOMARdata reduction
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-10-09
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description