solution structure of Copper-S46V CopA from Bacillus subtilis

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 30 
  • Selection Criteria: structures with lowest energy violations 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


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

  • 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 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.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Potential copper-transporting ATPase76Bacillus subtilisMutation(s): 1 
Gene Names: yvgX
EC: (PDB Primary Data), (UniProt)
Find proteins for O32220 (Bacillus subtilis (strain 168))
Explore O32220 
Go to UniProtKB:  O32220
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO32220
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on CU

Download Ideal Coordinates CCD File 
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 30 
  • Selection Criteria: structures with lowest energy violations 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-09-16
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-10-27
    Changes: Data collection, Database references, Derived calculations