Macromolecule Content

• Total Structure Weight: 20335.46 
• Atom Count: 1426 
• Residue Count: 180 
• Unique protein chains: 1

1CNP

THE STRUCTURE OF CALCYCLIN REVEALS A NOVEL HOMODIMERIC FOLD FOR S100 CA2+-BINDING PROTEINS, NMR, 22 STRUCTURES

• DOI: 10.2210/pdb1CNP/pdb
• BMRB: 4430

• Classification: CALCIUM-BINDING PROTEIN
• Organism(s): Oryctolagus cuniculus


• Deposited: 1995-08-31 Released: 1996-10-14 
• Deposition Author(s): Potts, B.C.M., Smith, J., Akke, M., Macke, T.J., Okazaki, K., Hidaka, H., Case, D.A., Chazin, W.J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 22 

Literature

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: 790-796

• PubMed: 7552751 


• PubMed Abstract: 
  

The S100 calcium-binding proteins are implicated as effectors in calcium-mediated signal transduction pathways. The three-dimensional structure of the S100 protein calcyclin has been determined in solution in the apo state by NMR spectroscopy and a computational strategy that incorporates a systematic docking protocol. This structure reveals a symmetric homodimeric fold that is unique among calcium-binding proteins. Dimerization is mediated by hydrophobic contacts from several highly conserved residues, which suggests that the dimer fold identified for calcyclin will serve as a structural paradigm for the S100 subfamily of calcium-binding proteins.

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Related Citations: 

• 1H NMR Resonance Assignments and Low Resolution Structure of the Monomer Subunit of Apo Calcyclin
  Potts, B.C.M.,Carlstrom, G.,Okazaki, K.,Hidaka, H.,Chazin, W.J.
  () TO BE PUBLISHED --: --
• 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




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Organizational Affiliation: 

Department of Molecular Biology, Scripps Research Institute, La Jolla, California 92037, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
CALCYCLIN (RABBIT, APO)	A, B	90	Oryctolagus cuniculus	Mutation(s): 0  Gene 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 Submitted: 22 
• Olderado: 1CNP Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-08-31 
• Released Date: 1996-10-14 
• Deposition Author(s): Potts, B.C.M., Smith, J., Akke, M., Macke, T.J., Okazaki, K., Hidaka, H., Case, D.A., Chazin, W.J.

Revision History 

• Version 1.0: 1996-10-14
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance