1MHO

THE 2.0 A STRUCTURE OF HOLO S100B FROM BOVINE BRAIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A novel mode of target recognition suggested by the 2.0 A structure of holo S100B from bovine brain.

Matsumura, H.Shiba, T.Inoue, T.Harada, S.Kai, Y.

(1998) Structure 6: 233-241


  • PubMed Abstract: 
  • S100B, a small acidic calcium-binding protein, is a member of the S100 protein family and is a multifunctional protein capable of binding several target molecules, such as cytoskeletal proteins and protein kinases, in a calcium-dependent manner. S100 ...

    S100B, a small acidic calcium-binding protein, is a member of the S100 protein family and is a multifunctional protein capable of binding several target molecules, such as cytoskeletal proteins and protein kinases, in a calcium-dependent manner. S100B is a homodimer of S100 beta subunits (beta beta) with a total of four calcium-binding motifs called EF hands. S100B is found abundantly in nervous tissue and has been implicated in Alzheimer's disease and Down's syndrome. Structural analysis of S100B in the calcium-bound state is required to gain a better understanding of the conformational changes that occur to S100B upon calcium binding and to elucidate the mode of recognition between S100B and its target molecules.


    Related Citations: 
    • The Refined Structure of Vitamin D-Dependent Calcium-Binding Protein from Bovine Intestine. Molecular Details, Ion Binding, and Implications for the Structure of Other Calcium-Binding Proteins
      Szebenyi, D.M.,Moffat, K.
      (1986) J.Biol.Chem. 261: 8761


    Organizational Affiliation

    Department of Applied Chemistry, Faculty of Engineering, Osaka University, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
S-100 PROTEIN
A
88Bos taurusGene Names: S100B
Find proteins for P02638 (Bos taurus)
Go to Gene View: S100B
Go to UniProtKB:  P02638
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.195 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 36.160α = 90.00
b = 89.660β = 90.00
c = 58.350γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
REFMACrefinement
X-PLORphasing
DENZOdata reduction
SCALEPACKdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-11-18
    Type: Initial release
  • Version 1.1: 2008-03-04
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance