1E4S

Solution structure of the human defensin hBD-1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY, LEAST RESTRAINT VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure Determination of Human and Murine Beta-Defensins Reveals Structural Conservation in the Absence of Significant Sequence Similarity

Bauer, F.Schweimer, K.Kluver, E.Conejo-Garcia, J.Forssmann, W.G.Roesch, P.Adermann, K.Sticht, H.

(2001) Protein Sci. 10: 2470

  • DOI: 10.1110/ps.24401
  • Primary Citation of Related Structures:  1E4Q, 1E4R, 1E4T

  • PubMed Abstract: 
  • Defensins are cationic and cysteine-rich peptides that play a crucial role in the host defense against microorganisms of many organisms by their capability to permeabilize bacterial membranes. The low sequence similarity among the members of the larg ...

    Defensins are cationic and cysteine-rich peptides that play a crucial role in the host defense against microorganisms of many organisms by their capability to permeabilize bacterial membranes. The low sequence similarity among the members of the large mammalian beta-defensin family suggests that their antimicrobial activity is largely independent of their primary structure. To investigate to what extent these defensins share a similar fold, the structures of the two human beta-defensins, hBD-1 and hBD-2, as well as those of two novel murine defensins, termed mBD-7 and mBD-8, were determined by nuclear magnetic resonance spectroscopy. All four defensins investigated share a striking similarity on the level of secondary and tertiary structure including the lack of a distinct hydrophobic core, suggesting that the fold is mainly stabilized by the presence of three disulfide bonds. In addition to the overall shape of the molecules, the ratio of solvent-exposed polar and hydrophobic side chains is also very similar among the four defensins investigated. It is significant that beta-defensins do not exhibit a common pattern of charged and hydrophobic residues on the protein surface and that the beta-defensin-specific fold appears to accommodate a wide range of different amino acids at most sequence positions. In addition to the implications for the mode of biological defensin actions, these findings are of particular interest because beta-defensins have been suggested as lead compounds for the development of novel peptide antibiotics for the therapy of infectious diseases.


    Organizational Affiliation

    Lehrstuhl für Biopolymere, Universität Bayreuth, D-95440 Bayreuth, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BETA-DEFENSIN 1
A
36Homo sapiensGene Names: DEFB1 (BD1, HBD1)
Find proteins for P60022 (Homo sapiens)
Go to Gene View: DEFB1
Go to UniProtKB:  P60022
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY, LEAST RESTRAINT VIOLATION 
  • Olderado: 1E4S Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-07-12
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance