Measurement of S-Nitrosoglutathione Reductase Activity in Plants

  • Martina Janků
  • Tereza Tichá
  • Lenka Luhová
  • Marek PetřivalskýEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2057)


S-nitrosation as a redox-based posttranslational modification of protein cysteine has emerged as an integral part of signaling pathways of nitric oxide across all types of organisms. Protein S-nitrosation status is controlled by two key mechanisms: by direct denitrosation performed by the thioredoxin/thioredoxin reductase system, and in an indirect way mediated by S-nitrosoglutathione reductase (GSNOR). GSNOR, which has been identified as a key component of S-nitrosothiols catabolism, catalyzes an irreversible decomposition of abundant intracellular S-nitrosothiol, S-nitrosoglutathione (GSNO) to oxidized glutathione using reduced NADH cofactor. In plants, GSNOR has been shown to play important roles in plant growth and development and plant responses to abiotic and biotic stress stimuli. In this chapter, optimized protocols of spectrophotometric measurement of GSNOR enzymatic activity and activity staining in native polyacrylamide gels in plant GSNOR are presented.

Key words

S-nitrosation S-nitrosothiols Nitric oxide S-nitrosoglutathione reductase Plant stress 



This project was supported by an internal Grant from Palacky University in Olomouc (IGA_PrF_2019_022).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • Martina Janků
    • 1
  • Tereza Tichá
    • 1
  • Lenka Luhová
    • 1
  • Marek Petřivalský
    • 1
    Email author
  1. 1.Department of Biochemistry, Faculty of SciencePalacký UniversityOlomoucCzech Republic

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