4GCR

STRUCTURE OF THE BOVINE EYE LENS PROTEIN GAMMA-B (GAMMA-II)-CRYSTALLIN AT 1.47 ANGSTROMS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Observed: 0.181 

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This is version 1.2 of the entry. See complete history


Literature

Structure of the bovine eye lens protein gammaB(gammaII)-crystallin at 1.47 A.

Najmudin, S.Nalini, V.Driessen, H.P.Slingsby, C.Blundell, T.L.Moss, D.S.Lindley, P.F.

(1993) Acta Crystallogr D Biol Crystallogr 49: 223-233

  • DOI: 10.1107/S0907444992007601
  • Primary Citation of Related Structures:  
    4GCR

  • PubMed Abstract: 
  • The molecular structure of calf gammaB-crystallin (previously called gammaII), a lens-specific protein, has been refined to a crystallographic R factor of 18.1% for all reflection data, between 8.0 and 1.47 A, 25 959 hkl measured at 293 (1) K. 230 water molecules have been defined by difference Fourier techniques and included in a restrained least-squares refinement ...

    The molecular structure of calf gammaB-crystallin (previously called gammaII), a lens-specific protein, has been refined to a crystallographic R factor of 18.1% for all reflection data, between 8.0 and 1.47 A, 25 959 hkl measured at 293 (1) K. 230 water molecules have been defined by difference Fourier techniques and included in a restrained least-squares refinement. Difference Fourier maps clearly indicated the presence of multiple sites for the sulfur atoms of Cys 18 and Cys 22 which were therefore given coupled second-site occupancies during the refinement. The sulfur atom in the major position of Cys 22 is in the reduced state. Either of the Cys 18 sites can form a high-energy disulfide bridge with the minor position of Cys 22. The position of the carboxy terminus and many other surface side chains have been further defined including the RGD signal peptide. The hydration of the backbone and the interdomain region has been analysed. 27 water molecules make extensive contacts to a single protein molecule and thus contribute to its stability.


    Related Citations: 
    • X-Ray Studies of the Lens Specific Proteins, the Crystallins
      Summers, L., Wistow, G., Narebor, M., Moss, D., Lindley, P., Slingsby, C., Blundell, T., Bartunik, H., Bartels, K.
      (1984) Pept Protein Rev 3: 147
    • Gamma-II Crystallin at 1.9 Angstrom Resolution
      Wistow, G., Turnell, B., Summers, L., Slingsby, C., Moss, D., Miller, L., Lindley, P., Blundell, T.
      (1983) J Mol Biol 170: 175
    • X-Ray Analysis of Gamma Crystallin II
      Blundell, T., Lindley, P., Miller, L., Moss, D., Slingsby, C., Tickle, I., Turnell, B., Wistow, G.
      (1981) Nature 289: 771

    Organizational Affiliation

    Laboratory of Molecular Biology, Department of Crystallography, Birkbeck College, London, England.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GAMMA-B CRYSTALLINA174Bos taurusMutation(s): 0 
Gene Names: CRYGB
UniProt
Find proteins for P02526 (Bos taurus)
Explore P02526 
Go to UniProtKB:  P02526
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02526
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Observed: 0.181 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.53α = 90
b = 57.53β = 90
c = 97.95γ = 90
Software Package:
Software NamePurpose
RESTRAINrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance