1D1O

COOPERATIVITY IN EF-HAND CA2+-BINDING PROTEINS: EVIDENCE OF SITE-SITE COMMUNICATION FROM BINDING-INDUCED CHANGES IN STRUCTURE AND DYNAMICS OF N56A CALBINDIN D9K


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 24 
  • Selection Criteria: STRUCTURES WITH ACCEPTABLE MOLECULAR ENEGIES WERE ORDERED BY LEAST RESTRAINT VIOLATIONS. THE 24 BEST CONFORMERS WERE SELECTED TO FACILITATE COMPARISON TO PREVIOUS STRUCTURES OF THE PROTEIN AND BECAUSE THIS SURPASSES THE STATISTICAL REQUIREMENT TO REPRESENT ALL OF CONFORMATIONAL SPACE CONSISTENT WITH THE DATA. 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Site-site communication in the EF-hand Ca2+-binding protein calbindin D9k.

Maler, L.Blankenship, J.Rance, M.Chazin, W.J.

(2000) Nat Struct Biol 7: 245-250

  • DOI: 10.1038/73369
  • Primary Citation of Related Structures:  
    1D1O

  • PubMed Abstract: 
  • The cooperative binding of Ca2+ ions is an essential functional property of the EF-hand family of Ca2+-binding proteins. To understand how these proteins function, it is essential to characterize intermediate binding states in addition to the apo- an ...

    The cooperative binding of Ca2+ ions is an essential functional property of the EF-hand family of Ca2+-binding proteins. To understand how these proteins function, it is essential to characterize intermediate binding states in addition to the apo- and holo-proteins. The three-dimensional solution structure and fast time scale internal motional dynamics of the backbone have been determined for the half-saturated state of the N56A mutant of calbindin D9k with Ca2+ bound only in the N-terminal site. The extent of conformational reorganization and a loss of flexibility in the C-terminal EF-hand upon binding of an ion in the N-terminal EF-hand provide clear evidence of the importance of site-site interactions in this family of proteins, and demonstrates the strength of long-range effects in the cooperative EF-hand Ca2+-binding domain.


    Related Citations: 
    • Solution structure of (cd2+)1-calbindin D9k reveals details of the stepwise structural changes along the apo-(Ca2+)1-(Ca2+)2 binding pathway.
      Akke, M., Forsen, S., Chazin, W.J.
      (1995) J Mol Biol 252: 102
    • High resolution solution structure of calcium-loaded calbindin D9k.
      Kordel, J., Skelton, N.J., Akke, M., Chazin, W.J.
      (1993) J Mol Biol 231: 711
    • Determination of the solution structure of apo calbindin D9k by NMR spectroscopy.
      Skelton, N.J., Kordel, J., Chazin, W.J.
      (1995) J Mol Biol 249: 441
    • Characterization of the N-terminal half-saturated state of calbindin D9k: NMR studies of the N56A mutant.
      Wimberly, B., Thulin, E., Chazin, W.J.
      (1995) Protein Sci 4: 1045

    Organizational Affiliation

    Department of Molecular Biology (MB9), The Scripps Research Institute, 10550 North Torrey Pines Road., La Jolla, California 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CALBINDIN D9KA75Bos taurusMutation(s): 0 
Gene Names: S100GCALB3S100D
Find proteins for P02633 (Bos taurus)
Explore P02633 
Go to UniProtKB:  P02633
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 24 
  • Selection Criteria: STRUCTURES WITH ACCEPTABLE MOLECULAR ENEGIES WERE ORDERED BY LEAST RESTRAINT VIOLATIONS. THE 24 BEST CONFORMERS WERE SELECTED TO FACILITATE COMPARISON TO PREVIOUS STRUCTURES OF THE PROTEIN AND BECAUSE THIS SURPASSES THE STATISTICAL REQUIREMENT TO REPRESENT ALL OF CONFORMATIONAL SPACE CONSISTENT WITH THE DATA. 
  • OLDERADO: 1D1O Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-03-08
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance