1LXE

CRYSTAL STRUCTURE OF THE CATHELICIDIN MOTIF OF PROTEGRINS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.279 
  • R-Value Work: 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

  • Primary Citation of Related Structures:  1KWI

  • 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 antimic ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
protegrin-3 precursor
A
101Sus scrofaGene Names: NPG3
Find proteins for P32196 (Sus scrofa)
Go to UniProtKB:  P32196
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.215 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 52.172α = 90.00
b = 52.172β = 90.00
c = 135.483γ = 120.00
Software Package:
Software NamePurpose
AUTOMARdata reduction
CNSrefinement
DENZOdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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