1OPZ

A core mutation affecting the folding properties of a soluble domain of the ATPase protein CopA from Bacillus subtilis


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 
  • Selection Criteria: The submitted conformer model is the average of 30 structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A core mutation affecting the folding properties of a soluble domain of the ATPase protein CopA from Bacillus subtilis.

Banci, L.Bertini, I.Ciofi-Baffoni, S.Gonnelli, L.Su, X.C.

(2003) J Mol Biol 331: 473-484

  • DOI: 10.1016/s0022-2836(03)00769-1
  • Primary Citation of Related Structures:  
    1OQ6, 1OQ3, 1OPZ

  • PubMed Abstract: 
  • The two N-terminal domains of the P-type copper ATPase, CopAa and CopAb, from Bacillus subtilis differ in their folding capabilities in vitro. Whereas CopAb has the typical betaalphabetabetaalphabeta structure and is a rigid protein, CopAa is found t ...

    The two N-terminal domains of the P-type copper ATPase, CopAa and CopAb, from Bacillus subtilis differ in their folding capabilities in vitro. Whereas CopAb has the typical betaalphabetabetaalphabeta structure and is a rigid protein, CopAa is found to be largely unfolded. A sequence analysis of the two and of orthologue homologous proteins indicates that Ser46 in CopAa may destabilise the hydrophobic core, as also confirmed through a bioinformatic energy study. CopAb has a Val in the corresponding position. The S46V and S46A mutants are found to be folded, although the latter displays multiple conformations. S46VCopAa, in both apo and copper(I) loaded forms, has very similar structural and dynamic properties with respect to CopAb, besides a different length of strand beta2 and beta4. It is intriguing that the oxygen of Thr16 is found close, though at longer than bonding distance, to copper in both domains, as it also occurs in a human orthologue domain. This study contributes to understanding the behaviour of proteins that do not properly fold in vitro. A possible biological significance of the peculiar folding behaviour of this domain is discussed.


    Organizational Affiliation

    Department of Chemistry, The Magnetic Resonance Center CERM, University of Florence, Via Luigi Sacconi 6, 50019 Sesto Fiorentino, Florence, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Potential copper-transporting ATPaseA76Bacillus subtilisMutation(s): 1 
Gene Names: yvgX
EC: 3.6.3.4 (PDB Primary Data), 7.2.2.8 (UniProt)
Find proteins for O32220 (Bacillus subtilis (strain 168))
Explore O32220 
Go to UniProtKB:  O32220
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 
  • Selection Criteria: The submitted conformer model is the average of 30 structures with the lowest energy 
  • OLDERADO: 1OPZ Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-03-16
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance