2LA1

Expression in Pichia pastoris and backbone dynamics of dendroaspin, a three finger toxin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Dynamics and functional differences between dendroaspin and rhodostomin: Insights into protein scaffolds in integrin recognition

Cheng, C.H.Chen, Y.C.Shiu, J.H.Chang, Y.T.Chang, Y.S.Huang, C.H.Chen, C.Y.Chuang, W.J.

(2012) Protein Sci. 21: 1872-1884

  • DOI: 10.1002/pro.2169

  • PubMed Abstract: 
  • Dendroaspin (Den) and rhodostomin (Rho) are snake venom proteins containing a PRGDMP motif. Although Den and Rho have different 3D structures, they are highly potent integrin inhibitors. To study their structure, function, and dynamics relationships, ...

    Dendroaspin (Den) and rhodostomin (Rho) are snake venom proteins containing a PRGDMP motif. Although Den and Rho have different 3D structures, they are highly potent integrin inhibitors. To study their structure, function, and dynamics relationships, we expressed Den and Rho in Pichia pastoris. The recombinant Den and Rho inhibited platelet aggregation with the K(I) values of 149.8 and 83.2 nM. Cell adhesion analysis showed that Den was 3.7 times less active than Rho when inhibiting the integrin αIIbβ3 and 2.5 times less active when inhibiting the integrin αvβ3. In contrast, Den and Rho were similarly active when inhibiting the integrin α5β1 with the IC₅₀ values of 239.8 and 256.8 nM. NMR analysis showed that recombinant Den and Rho have different 3D conformations for their arginyl-glycyl-aspartic acid (RGD) motif. However, the comparison with Rho showed that the docking of Den into integrin αvβ3 resulted in a similar number of contacts. Analysis of the dynamic properties of the RGD loop in Den and Rho showed that they also had different dynamic properties. These results demonstrate that protein scaffolds affect the function, structure, and dynamics of their RGD motif.


    Organizational Affiliation

    Department of Biochemistry and Institute of Basic Medical Sciences, National Cheng Kung University College of Medicine, Tainan 701, Taiwan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mambin
A
59Dendroaspis jamesoni kaimosaeMutation(s): 0 
Find proteins for P28375 (Dendroaspis jamesoni kaimosae)
Go to UniProtKB:  P28375
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: lowest energy 
  • Olderado: 2LA1 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-03-07
    Type: Initial release
  • Version 1.1: 2012-12-19
    Type: Database references