1A03

THE THREE-DIMENSIONAL STRUCTURE OF CA2+-BOUND CALCYCLIN: IMPLICATIONS FOR CA2+-SIGNAL TRANSDUCTION BY S100 PROTEINS, NMR, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 192 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATION ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The three-dimensional structure of Ca(2+)-bound calcyclin: implications for Ca(2+)-signal transduction by S100 proteins.

Sastry, M.Ketchem, R.R.Crescenzi, O.Weber, C.Lubienski, M.J.Hidaka, H.Chazin, W.J.

(1998) Structure 6: 223-231


  • PubMed Abstract: 
  • Calcyclin is a member of the S100 subfamily of EF-hand Ca(2+)-binding proteins. This protein has implied roles in the regulation of cell growth and division, exhibits deregulated expression in association with cell transformation, and is found in hig ...

    Calcyclin is a member of the S100 subfamily of EF-hand Ca(2+)-binding proteins. This protein has implied roles in the regulation of cell growth and division, exhibits deregulated expression in association with cell transformation, and is found in high abundance in certain breast cancer cell lines. The novel homodimeric structural motif first identified for apo calcyclin raised the possibility that S100 proteins recognize their targets in a manner that is distinctly different from that of the prototypical EF-hand Ca2+ sensor, calmodulin. The NMR solution structure of Ca(2+)-bound calcyclin has been determined in order to identify Ca(2+)-induced structural changes and to obtain insights into the mechanism of Ca(2+)-triggered target protein recognition.


    Related Citations: 
    • A Calcium-Binding Protein from Rabbit Lung Cytosol Identified as the Product of Growth-Regulated Gene (2A9) and its Binding Proteins
      Tokumitsu, H.,Kobayashi, R.,Hidaka, H.
      (1991) Arch.Biochem.Biophys. 288: 202
    • 1H NMR Assignments of Apo Calcyclin and Comparative Structural Analysis with Calbindin D9K and S100 Beta
      Potts, B.C.,Carlstrom, G.,Okazaki, K.,Hidaka, H.,Chazin, W.J.
      (1996) Protein Sci. 5: 2162
    • Erratum. The Structure of Calcyclin Reveals a Novel Homodimeric Fold for S100 Ca(2+)-Binding Proteins
      Potts, B.C.,Smith, J.,Akke, M.,Macke, T.J.,Okazaki, K.,Hidaka, H.,Case, D.A.,Chazin, W.J.
      (1995) Nat.Struct.Mol.Biol. 2: 912
    • Erratum. A Calcium-Binding Protein from Rabbit Lung Cytosol Identified as the Product of Growth-Regulated Gene (2A9) and its Binding Proteins
      Tokumitsu, H.,Kobayashi, R.,Hidaka, H.
      (1991) Arch.Biochem.Biophys. 291: 401
    • The Structure of Calcyclin Reveals a Novel Homodimeric Fold for S100 Ca(2+)-Binding Proteins
      Potts, B.C.,Smith, J.,Akke, M.,Macke, T.J.,Okazaki, K.,Hidaka, H.,Case, D.A.,Chazin, W.J.
      (1995) Nat.Struct.Mol.Biol. 2: 790


    Organizational Affiliation

    Department of Molecular Biology (MB-9), Scripps Research Institute, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CALCYCLIN (RABBIT, CA2+)
A, B
90Oryctolagus cuniculusGene Names: S100A6
Find proteins for P30801 (Oryctolagus cuniculus)
Go to Gene View: S100A6
Go to UniProtKB:  P30801
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 192 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATION ENERGY 
  • Olderado: 1A03 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-03-02
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance