1DFN

CRYSTAL STRUCTURE OF DEFENSIN HNP-3, AN AMPHIPHILIC DIMER: MECHANISMS OF MEMBRANE PERMEABILIZATION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of defensin HNP-3, an amphiphilic dimer: mechanisms of membrane permeabilization.

Hill, C.P.Yee, J.Selsted, M.E.Eisenberg, D.

(1991) Science 251: 1481-1485


  • PubMed Abstract: 
  • Defensins (molecular weight 3500 to 4000) act in the mammalian immune response by permeabilizing the plasma membranes of a broad spectrum of target organisms, including bacteria, fungi, and enveloped viruses. The high-resolution crystal structure of ...

    Defensins (molecular weight 3500 to 4000) act in the mammalian immune response by permeabilizing the plasma membranes of a broad spectrum of target organisms, including bacteria, fungi, and enveloped viruses. The high-resolution crystal structure of defensin HNP-3 (1.9 angstrom resolution, R factor 0.19) reveals a dimeric beta sheet that has an architecture very different from other lytic peptides. The dimeric assembly suggests mechanisms by which defensins might bind to and permeabilize the lipid bilayer.


    Related Citations: 
    • Defensins. Natural Peptide Antibiotics of Human Neutrophils
      Ganz, T.,Selsted, M.E.,Szklarek, D.,Harwig, S.S.L.,Daher, K.,Bainton, D.F.,Lehrer, R.I.
      (1985) J.Clin.Invest. 76: 1427
    • Primary Structures of Three Human Neutrophil Defensins
      Selsted, M.E.,Harwig, S.S.L.,Ganz, T.,Schilling, J.W.,Lehrer, R.I.
      (1985) J.Clin.Invest. 76: 1436


    Organizational Affiliation

    Eisenberg, Molecular Biology Institute, Los Angeles, CA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DEFENSIN HNP-3
A, B
30Homo sapiensMutation(s): 0 
Gene Names: DEFA3 (DEF3)
Find proteins for P59666 (Homo sapiens)
Go to Gene View: DEFA3
Go to UniProtKB:  P59666
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 30.800α = 90.00
b = 45.000β = 90.00
c = 40.300γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1992-07-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other