Cited by 99Bacterial Genetics and BiotechnologyTrace Elements in HealthMetalloenzymes and iron-sulfur proteins

CopZ from Bacillus subtilis interacts in vivo with a copper exporting CPx-type ATPase CopA

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Radford, David S., Kihlken, Margaret A., Borrelly, Gilles P.M., Harwood, Colin R., Brun, Nick E., Cavet, Jennifer S.·2003·FEMS Microbiology Letters

Abstract

The structure of the hypothetical copper-metallochaperone CopZ from Bacillus subtilis and its predicted partner CopA have been studied but their respective contributions to copper export, -import, -sequestration and -supply are unknown. DeltacopA was hypersensitive to copper and contained more copper atoms cell(-1) than wild-type. Expression from the copA operator-promoter increased in elevated copper (not other metals), consistent with a role in copper export. A bacterial two-hybrid assay revealed in vivo interaction between CopZ and the N-terminal domain of CopA but not that of a related transporter, YvgW, involved in cadmium-resistance. Activity of copper-requiring cytochrome caa(3) oxidase was retained in deltacopZ and deltacopA. DeltacopZ was only slightly copper-hypersensitive but deltacopZ/deltacopA was more sensitive than deltacopA, implying some action of CopZ that is independent of CopA. Significantly, deltacopZ contained fewer copper atoms cell(-1) than wild-type under these conditions. CopZ makes a net contribution to copper sequestration and/or recycling exceeding any donation to CopA for export.

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Crossref · 10.1016/s0378-1097(03)00095-8

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  • In B. subtilis and L. monocytogenes, CopZ interacts and exchanges copper with CopA, and is predicted to protect bacteria from inappropriate copper binding to cytoplasmic proteins.

    “In B. subtilis and L. monocytogenes, CopZ interacts and exchanges copper with CopA, and is therefore predicted to protect bacteria from the inappropriate binding of copper to cytoplasmic proteins [214, 215].”

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1 of the 50 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Gaballa, A. and Helmann, J. (2002) Bacillus subtilis CPx-type ATP ases: characterisation of Cd, Zn, Co and Cu e¥ux systems. Biomet als, in press.
  2. Bron, S. (1990) Plasmids. In: Molecular Biological Methods for Ba cillus (Harwood, C.R. and Cutting, S.M., Eds.), pp. 75^174. John Wiley and Sons Ltd., Chichester.

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Authors
Radford, D. S., Kihlken, M. A., Borrelly, G. P. M., Harwood, C. R., Brun, N. E., & Cavet, J. S.
Affiliations
  • Newcastle University (GB)
  • University of East Anglia (GB)
Corresponding author
Cavet, Jennifer S.
Venue
FEMS Microbiology Letters
Published
2003-03
Volume
220
Issue
1
Pages
105-112
ISSN
  • 0378-1097 (ISSN-L)
  • 1574-6968
OpenAlex
W2011388752
Cited by
99
References
50
Citations by year
2026: 5 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 6 · 2021: 9 · 2020: 5 · 2019: 3 · 2018: 5 · 2017: 1 · 2016: 8 · 2015: 3 · 2014: 6 · 2012: 2
FWCI
2.64
Type
journal article
Language
en
Open access
Locations
  • FEMS Microbiology Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
  • UEA Digital Repository (University of East Anglia) (submittedVersion)
  • Newcastle University ePrints (Newcastle Univesity)
Funders
  • Royal Society
  • Biotechnology and Biological Sciences Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Metalloenzymes and iron-sulfur proteins
Keywords
COPA, copper exports, copper sequestration, copper recycling, Bacillus subtilis, cadmium resistance, cytochrome c oxidase, copper sensitivity, protein-protein interaction, two-hybrid assay
MeSH terms
Adenosine Triphosphatases, Bacillus subtilis, Bacterial Proteins, Copper, Enzyme Induction, Models, Biological, Recombinant Fusion Proteins, Gene Expression Regulation, Bacterial, Mutagenesis, Ion Transport, Gene Deletion, Molecular Chaperones, Two-Hybrid System Techniques, Amino Acid Motifs, Drug Resistance, Bacterial, Protein Interaction Mapping, Cation Transport Proteins

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