1DFN

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Observed: 0.190 

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

  • DOI: 10.1126/science.2006422
  • Primary Citation of Related Structures:  
    1DFN

  • 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 defensin HNP-3 (1 ...

    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: 
    • 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
    • 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

    Organizational Affiliation

    Eisenberg, Molecular Biology Institute, Los Angeles, CA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DEFENSIN HNP-3A, B30Homo sapiensMutation(s): 0 
Gene Names: DEFA3DEF3
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P59666 (Homo sapiens)
Explore P59666 
Go to UniProtKB:  P59666
PHAROS:  P59666
GTEx:  ENSG00000239839 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP59666
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 30.8α = 90
b = 45β = 90
c = 40.3γ = 90
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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