1ODB

THE CRYSTAL STRUCTURE OF HUMAN S100A12 - COPPER COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.19 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

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This is version 1.2 of the entry. See complete history


Literature

Structure of the Human S100A12-Copper Complex: Implications for Host-Parasite Defence

Moroz, O.V.Antson, A.A.Grist, S.J.Maitland, N.J.Dodson, G.G.Wilson, K.S.Lukanidin, E.M.Bronstein, I.B.

(2003) Acta Crystallogr D Biol Crystallogr 59: 859

  • DOI: 10.1107/s0907444903004700
  • Primary Citation of Related Structures:  
    1ODB

  • PubMed Abstract: 
  • S100A12 is a member of the S100 family of EF-hand calcium-modulated proteins. Together with S100A8 and S100A9, it belongs to the calgranulin subfamily, i.e. it is mainly expressed in granulocytes, although there is an increasing body of evidence of expre ...

    S100A12 is a member of the S100 family of EF-hand calcium-modulated proteins. Together with S100A8 and S100A9, it belongs to the calgranulin subfamily, i.e. it is mainly expressed in granulocytes, although there is an increasing body of evidence of expression in keratinocytes and psoriatic lesions. As well as being linked to inflammation, allergy and neuritogenesis, S100A12 is involved in host-parasite response, as are the other two calgranulins. Recent data suggest that the function of the S100-family proteins is modulated not only by calcium, but also by other metals such as zinc and copper. Previously, the structure of human S100A12 in low-calcium and high-calcium structural forms, crystallized in space groups R3 and P2(1), respectively, has been reported. Here, the structure of S100A12 in complex with copper (space group P2(1)2(1)2; unit-cell parameters a = 70.6, b = 119.0, c = 90.2 A) refined at 2.19 A resolution is reported. Comparison of anomalous difference electron-density maps calculated with data collected with radiation of wavelengths 1.37 and 1.65 A shows that each monomer binds a single copper ion. The copper binds at an equivalent site to that at which another S100 protein, S100A7, binds zinc. The results suggest that copper binding may be essential for the functional role of S100A12 and probably the other calgranulins in the early immune response.


    Related Citations: 
    • The Three-Dimensional Structure of Human S100A12
      Moroz, O.V., Antson, A.A., Murshudov, G.N., Maitlanddodson, G.G., Wilson, K.S., Skibshoj, I., Lukanidin, E., Bronstein, I.B.
      (2001) Acta Crystallogr D Biol Crystallogr 57: 20

    Organizational Affiliation

    Department of Chemistry, University of York, York YO10 5YW, England. olga@ysbl.york.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CALGRANULIN C ABCDEF95Homo sapiensMutation(s): 0 
Gene Names: S100A12
Find proteins for P80511 (Homo sapiens)
Explore P80511 
Go to UniProtKB:  P80511
NIH Common Fund Data Resources
PHAROS:  P80511
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.19 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.569α = 90
b = 118.957β = 90
c = 90.185γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-06-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2019-05-29
    Changes: Data collection, Experimental preparation, Other