2MXQ

The solution structure of DEFA1, a highly potent antimicrobial peptide from the horse


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Solution structure and functional studies of the highly potent equine antimicrobial peptide DEFA1.

Michalek, M.Jung, S.Shomali, M.R.Cauchard, S.Sonnichsen, F.D.Grotzinger, J.

(2015) Biochem.Biophys.Res.Commun. 459: 668-672

  • DOI: 10.1016/j.bbrc.2015.02.168

  • PubMed Abstract: 
  • Defensins are small effector molecules of the innate immune system that are present in almost all organisms including plants and animals. These peptides possess antimicrobial activity against a broad range of microbes including bacteria, fungi and vi ...

    Defensins are small effector molecules of the innate immune system that are present in almost all organisms including plants and animals. These peptides possess antimicrobial activity against a broad range of microbes including bacteria, fungi and viruses and act as endogenous antibiotics. α-Defensins are a subfamily of the defensin family and their expression is limited to specific tissues. Equine DEFA1 is an enteric α-defensin exclusively secreted by Paneth cells and shows an activity against a broad spectrum of microbes, including typical pathogens of the horse such as Rhodococcus equi, various streptococci strains, Salmonella choleraesuis, and Pasteurella multocida. Here, we report the three-dimensional structure of DEFA1 solved by NMR-spectroscopy and demonstrate its specific function of aggregating various phospholipids.


    Organizational Affiliation

    Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, Olshausenstr. 40, 24098 Kiel, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Paneth cell-specific alpha-defensin 1
A
34Equus caballusGene Names: DEFA1
Find proteins for A6YB85 (Equus caballus)
Go to Gene View: DEFA1
Go to UniProtKB:  A6YB85
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-04-22
    Type: Initial release