3FJ9

Crystal structure of F85W mutant of Human acidic fibroblast growth factor

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 

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This is version 1.1 of the entry. See complete history. 


Literature

The interaction between thermodynamic stability and buried free cysteines in regulating the functional half-life of fibroblast growth factor-1.

Lee, J., Blaber, M.

(2009) J Mol Biol 393: 113-127

  • DOI: 10.1016/j.jmb.2009.08.026
  • Primary Citation of Related Structures:  
    3FGM, 3FJA, 3FJB, 3FJC, 3FJD, 3FJ8, 3FJ9

  • PubMed Abstract: 

    • Protein biopharmaceuticals are an important and growing area of human therapeutics; however, the intrinsic property of proteins to adopt alternative conformations (such as during protein unfolding and aggregation) presents numerous challenges, limiting their effective application as biopharmaceuticals ...

    Protein biopharmaceuticals are an important and growing area of human therapeutics; however, the intrinsic property of proteins to adopt alternative conformations (such as during protein unfolding and aggregation) presents numerous challenges, limiting their effective application as biopharmaceuticals. Using fibroblast growth factor-1 as model system, we describe a cooperative interaction between the intrinsic property of thermostability and the reactivity of buried free-cysteine residues that can substantially modulate protein functional half-life. A mutational strategy that combines elimination of buried free cysteines and secondary mutations that enhance thermostability to achieve a substantial gain in functional half-life is described. Furthermore, the implementation of this design strategy utilizing stabilizing mutations within the core region resulted in a mutant protein that is essentially indistinguishable from wild type as regard protein surface and solvent structure, thus minimizing the immunogenic potential of the mutations. This design strategy should be generally applicable to soluble globular proteins containing buried free-cysteine residues.

    Organizational Affiliation: 

    Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306-4300, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heparin-binding growth factor 1A, B146Homo sapiensMutation(s): 1 
Gene Names: FGF1, FGFA
Find proteins for P05230 (Homo sapiens)
Explore P05230 
Go to UniProtKB:  P05230
NIH Common Fund Data Resources
PHAROS  P05230
GTEx  ENSG00000113578
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.232α = 90
b = 95.771β = 90
c = 109.567γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2008-12-14 
  • Released Date: 2009-10-06 
    • Deposition Author(s): Blaber, M., Lee, J.

Revision History 

  • Version 1.0: 2009-10-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance