Functional analysis and expression characteristics of chloroplastic Prx IIE

Peroxiredoxins are ubiquitous thiol-dependent peroxidases capable of eliminating a variety of peroxides through reactive catalytic cysteines, which are regenerated by reducing systems

Filipe Gama; Claire Bréhélin; Eric Gelhaye; Yves Meyer; Jean-Pierre Jacquot; Pascal Rey; Nicolas Rouhier

2008

Scholarcy highlights

  • Peroxiredoxins are ubiquitous thiol-dependent peroxidases capable of eliminating a variety of peroxides through reactive catalytic cysteines, which are regenerated by reducing systems
  • Based on amino acid sequences and their mode of catalysis, five groups of thiol peroxidases have been distinguished in plants, and type II Prx is one of them with representatives in many sub-cellular compartments
  • The mature form of poplar chloroplastic Prx IIE was expressed as a recombinant protein in Escherichia coli
  • Western blot analysis revealed that Prx IIE gene is constitutively expressed in Arabidopsis thaliana, mostly in young and mature leaves and in flowers

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