Mimicking the bioelectrocatalytic function of recombinant CotA laccase through electrostatically self-assembled bioconjugates

Nanoscale. 2019 Jan 23;11(4):1549-1554. doi: 10.1039/c8nr06001k.

Abstract

Unprecedented 3D nanobiosystems composed of recombinant CotA laccases and citrate-stabilised gold nanoparticles have been successfully achieved by an electrostatic self-assembly strategy. The bioelectrochemical reduction of O2 driven by CotA laccase at the spore coat was mimicked. Consequently key insights into its bioelectrocatalytic function were unravelled.

MeSH terms

  • Bacillus subtilis / enzymology
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism*
  • Biocatalysis
  • Dynamic Light Scattering
  • Electrochemical Techniques
  • Enzymes, Immobilized / chemistry
  • Enzymes, Immobilized / metabolism
  • Gold / chemistry
  • Laccase / genetics
  • Laccase / metabolism*
  • Metal Nanoparticles / chemistry
  • Particle Size
  • Recombinant Proteins / biosynthesis
  • Recombinant Proteins / chemistry
  • Spectrophotometry
  • Static Electricity
  • Surface Plasmon Resonance
  • Temperature

Substances

  • Bacterial Proteins
  • Enzymes, Immobilized
  • Recombinant Proteins
  • Gold
  • Laccase