3TES

Crystal Structure of Tencon


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.242 
  • R-Value Observed: 0.243 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Design of novel FN3 domains with high stability by a consensus sequence approach.

Jacobs, S.A.Diem, M.D.Luo, J.Teplyakov, A.Obmolova, G.Malia, T.Gilliland, G.L.O'Neil, K.T.

(2012) Protein Eng Des Sel 25: 107-117

  • DOI: https://doi.org/10.1093/protein/gzr064
  • Primary Citation of Related Structures:  
    3TES, 3TEU

  • PubMed Abstract: 

    The use of consensus design to produce stable proteins has been applied to numerous structures and classes of proteins. Here, we describe the engineering of novel FN3 domains from two different proteins, namely human fibronectin and human tenascin-C, as potential alternative scaffold biotherapeutics. The resulting FN3 domains were found to be robustly expressed in Escherichia coli, soluble and highly stable, with melting temperatures of 89 and 78°C, respectively. X-ray crystallography was used to confirm that the consensus approach led to a structure consistent with the FN3 design despite having only low-sequence identity to natural FN3 domains. The ability of the Tenascin consensus domain to withstand mutations in the loop regions connecting the β-strands was investigated using alanine scanning mutagenesis demonstrating the potential for randomization in these regions. Finally, rational design was used to produce point mutations that significantly increase the stability of one of the consensus domains. Together our data suggest that consensus FN3 domains have potential utility as alternative scaffold therapeutics.


  • Organizational Affiliation

    Janssen Research & Development, L.L.C., Radnor, PA 19087, USA. sjacobs9@its.jnj.com


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tencon
A, B, C, D
98N/AMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.242 
  • R-Value Observed: 0.243 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.72α = 90
b = 87.58β = 103.92
c = 56.22γ = 90
Software Package:
Software NamePurpose
StructureStudiodata collection
PHASERphasing
PHENIXrefinement
d*TREKdata reduction
d*TREKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-05-16
    Type: Initial release
  • Version 1.1: 2024-02-28
    Changes: Data collection, Database references