2M3N

Peptide leucine arginine


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Therapeutic potential of the Peptide leucine arginine as a new nonplant bowman-birk-like serine protease inhibitor.

Rothemund, S.Sonnichsen, F.D.Polte, T.

(2013) J.Med.Chem. 56: 6732-6744

  • DOI: 10.1021/jm4005362

  • PubMed Abstract: 
  • The peptide leucine arginine (pLR) belongs to a new class of cyclic peptides isolated from frog skin. Its primary sequence is similar to the reactive loop of plant Bowman-Birk inhibitors (BBI), and the recently discovered circular sunflower trypsin i ...

    The peptide leucine arginine (pLR) belongs to a new class of cyclic peptides isolated from frog skin. Its primary sequence is similar to the reactive loop of plant Bowman-Birk inhibitors (BBI), and the recently discovered circular sunflower trypsin inhibitor-1 (SFTI-1). The conformational properties of pLR in solution were determined by NMR spectroscopy and revealed excellent structural similarity to BBI and SFTI-1. Moreover, pLR is a highly potent trypsin inhibitor, with Ki values in the nanomolar range, and, due to its small size, a potential inhibitor of the serine protease tryptase. Since tryptase plays a crucial role in the development of allergic airway inflammation, the therapeutic potential of pLR in a murine asthma model was investigated. Treatment of ovalbumin-sensitized mice with pLR during allergen challenge reduced the acute asthma phenotype. Most importantly, application even at the end of a long-lasting chronic asthma model decreased the development of chronic airway inflammation and tissue remodeling.


    Organizational Affiliation

    Interdisciplinary Center of Clinical Research, University of Leipzig , Leipzig, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peptide leucine arginine
A
18Lithobates pipiensN/A
Find proteins for Q90WP7 (Lithobates pipiens)
Go to UniProtKB:  Q90WP7
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2013-01-23 
  • Released Date: 2013-09-11 
  • Deposition Author(s): Polte, T.

Revision History 

  • Version 1.0: 2013-09-11
    Type: Initial release
  • Version 1.1: 2013-09-25
    Type: Database references