1E4R

Solution structure of the mouse defensin mBD-8


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 1.3 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.R.Forssmann, W.G.Rosch, P.Adermann, K.Sticht, H.

(2001) Protein Sci 10: 2470-2479

  • DOI: 10.1110/ps.24401
  • Primary Citation of Related Structures:  
    1E4Q, 1E4R, 1E4S, 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 large mammalian beta-defensin family suggests that their antimicrobial activity is largely independent of their primary structure ...

    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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-defensin 8A35Mus musculusMutation(s): 0 
Gene Names: Defb8
Membrane Entity: Yes 
UniProt
Find proteins for Q91V82 (Mus musculus)
Explore Q91V82 
Go to UniProtKB:  Q91V82
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY, LEAST RESTRAINT VIOLATION 
  • OLDERADO: 1E4R Olderado

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-07-12
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-06-20
    Changes: Data collection, Database references, Source and taxonomy, Structure summary