5H1H

NMR structure of SLBA, a chimera of SFTI


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 1.0 of the entry. See complete history


Literature

An Orally Active Bradykinin B1 Receptor Antagonist Engineered as a Bifunctional Chimera of Sunflower Trypsin Inhibitor.

Qiu, Y.Taichi, M.Wei, N.Yang, H.Luo, K.Q.Tam, J.P.

(2017) J Med Chem 60: 504-510

  • DOI: 10.1021/acs.jmedchem.6b01011
  • Primary Citation of Related Structures:  
    5H1I, 5H1H

  • PubMed Abstract: 
  • An orally active and metabolically stable peptide TIBA was successfully engineered as a chimera by fusing an analgesic bradykinin receptor antagonist peptide and the trypsin inhibitory loop of sunflower trypsin inhibitor-1. As a fusion cyclic peptide, the metabolically labile analgesic peptide is protected from degradation by exopeptidases as well as the endopeptidases, and its serum half-life extended from <5 min to >6 h as a chimera ...

    An orally active and metabolically stable peptide TIBA was successfully engineered as a chimera by fusing an analgesic bradykinin receptor antagonist peptide and the trypsin inhibitory loop of sunflower trypsin inhibitor-1. As a fusion cyclic peptide, the metabolically labile analgesic peptide is protected from degradation by exopeptidases as well as the endopeptidases, and its serum half-life extended from <5 min to >6 h as a chimera. Moreover, the chimera TIBA was also found to be orally active in an animal pain model using a hot plate assay.


    Organizational Affiliation

    School of Biological Sciences, Nanyang Technological University , 60 Nanyang Drive, 637551, Singapore.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bradykinin-trypsin inhibitor secondary loop chimeraA16Helianthus annuusMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 5H1H Olderado

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 2016-10-10 
  • Released Date: 2017-04-19 
  • Deposition Author(s): Xiao, T., Tam, J.P.

Revision History  (Full details and data files)

  • Version 1.0: 2017-04-19
    Type: Initial release