Biological Assembly 1  

 3D View: Structure

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 3999.92 
• Atom Count: 275 
• Residue Count: 37 
• Unique protein chains: 1

1E4Q

Solution structure of the human defensin hBD-2

• DOI: 10.2210/pdb1E4Q/pdb

• Classification: DEFENSIN
• Organism(s): Homo sapiens


• Deposited: 2000-07-12 Released: 2001-07-12 
• Deposition Author(s): Bauer, F., Schweimer, K., Kluver, E., Adermann, K., Forssmann, W.G., Roesch, P., Sticht, H.

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Experimental Data Snapshot

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

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

• PubMed: 11714914 
• DOI: 10.1110/ps.24401
• Primary Citation of Related Structures:  
  1E4T, 1E4R, 1E4S


• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
BETA-DEFENSIN 2	A	37	Homo sapiens	Mutation(s): 0  Gene Names: DEFB4A, DEFB4B (DEFB102, DEFB2, DEFB4)
Find proteins for O15263 (Homo sapiens) Go to Gene View: DEFB4A DEFB4B Go to UniProtKB:  O15263

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 60 
• Conformers Submitted: 20 
• Selection Criteria: LOWEST ENERGY, LEAST RESTRAINT VIOLATION 
• Olderado: 1E4Q Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-07-12 
• Released Date: 2001-07-12 
• Deposition Author(s): Bauer, F., Schweimer, K., Kluver, E., Adermann, K., Forssmann, W.G., Roesch, P., Sticht, H.

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