2JDG

Affilin based on HUMAN GAMMA-B CRYSTALLIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Affilin-Novel Binding Molecules Based on Human Gamma-B-Crystallin, an All Beta-Sheet Protein.

Ebersbach, H.Fiedler, E.Scheuermann, T.Fiedler, M.Stubbs, M.T.Reimann, C.Proetzel, G.Rudolph, R.Fiedler, U.

(2007) J Mol Biol 372: 172

  • DOI: https://doi.org/10.1016/j.jmb.2007.06.045
  • Primary Citation of Related Structures:  
    2JDF, 2JDG

  • PubMed Abstract: 

    The concept of novel binding proteins as an alternative to antibodies has undergone rapid development and is now ready for practical use in a wide range of applications. Alternative binding proteins, based on suitable scaffolds with desirable properties, are selected from combinatorial libraries in vitro. Here, we describe an approach using a beta-sheet of human gamma-B-crystallin to generate a universal binding site through randomization of eight solvent-exposed amino acid residues selected according to structural and sequence analyses. Specific variants, so-called Affilin, have been isolated from a phage display library against a variety of targets that differ considerably in size and structure. The isolated Affilin variants can be produced in Escherichia coli as soluble proteins and have a high level of thermodynamic stability. The crystal structures of the human wild-type gamma-B-crystallin and a selected Affilin variant have been determined to 1.7 A and 2.0 A resolution, respectively. Comparison of the two molecules indicates that the human gamma-B-crystallin tolerates amino acid exchanges with no major structural change. We conclude that the intrinsically stable and easily expressed gamma-B-crystallin provides a suitable framework for the generation of novel binding molecules.


  • Organizational Affiliation

    Scil Proteins GmbH, Heinrich Damerow Str. 1, 06120 Halle (Saale), Germany. hebersbach@bioc.unizh.ch


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GAMMA CRYSTALLIN B183Homo sapiensMutation(s): 7 
UniProt & NIH Common Fund Data Resources
Find proteins for P07316 (Homo sapiens)
Explore P07316 
Go to UniProtKB:  P07316
PHAROS:  P07316
GTEx:  ENSG00000182187 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07316
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.72α = 90
b = 53.95β = 90
c = 62.17γ = 90
Software Package:
Software NamePurpose
CNSrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-07-24
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-05-08
    Changes: Data collection, Database references, Other