1IJU

HUMAN BETA-DEFENSIN-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.168 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structure of human beta-defensin-1: new insights into structural properties of beta-defensins.

Hoover, D.M.Chertov, O.Lubkowski, J.

(2001) J Biol Chem 276: 39021-39026

  • DOI: 10.1074/jbc.M103830200
  • Primary Citation of Related Structures:  
    1IJV, 1IJU

  • PubMed Abstract: 
  • Defensins are a class of small cationic peptides found in higher organisms that serve as both antimicrobial and cell signaling molecules. The exact mechanism of the antimicrobial activity of defensins is not known, but two models have been postulated, one involving pore formation and the other involving nonspecific electrostatic interaction with the bacterial membrane ...

    Defensins are a class of small cationic peptides found in higher organisms that serve as both antimicrobial and cell signaling molecules. The exact mechanism of the antimicrobial activity of defensins is not known, but two models have been postulated, one involving pore formation and the other involving nonspecific electrostatic interaction with the bacterial membrane. Here we report the high resolution structures of human beta-defensin-1 (hBD1) in two crystallographic space groups. The structure of a single molecule is very similar to that of human beta-defensin-2 (hBD2), confirming the presence of an N-terminal alpha-helix. However, while the packing of hBD1 is conserved across both space groups, there is no evidence for any larger quaternary structure similar to octameric hBD2. Furthermore, the topology of hBD1 dimers that are formed between monomers in the asymmetric unit is distinct from both hBD2 and other mammalian alpha-defensins. The structures of hBD1 and hBD2 provide a first step toward understanding the structural basis of antimicrobial and chemotactic properties of human beta-defensins.


    Organizational Affiliation

    Macromolecular Crystallography Laboratory and the Intramural Research Support Program, LMI, SAIC Frederick, NCI at Frederick, National Institutes of Health, Frederick, Maryland 21702, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-DEFENSIN 1A, B, C, D36N/AMutation(s): 0 
Find proteins for P60022 (Homo sapiens)
Explore P60022 
Go to UniProtKB:  P60022
NIH Common Fund Data Resources
PHAROS:  P60022
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.168 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.817α = 90
b = 26.814β = 102.13
c = 58.833γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
SHELXL-97refinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-10-24
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance