Calpain pp 103-108 | Cite as

Use of the β-Glucuronidase (GUS) Reporter System to Localize Promoter Activities of the Endogenous Plant Calpain DEFECTIVE KERNEL1 (DEK1)

  • Zhe Liang
  • Hilde-Gunn Opsahl-SortebergEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1915)


The DEFECTIVE KERNEL1 (DEK1) gene encodes the unique plant calpain protein, which is fundamental for cell specification, development, and growth of land plants. The β-glucuronidase (GUS) reporter gene system has been used to characterize and localize gene expression over several decades. When cloning a promoter upstream of the uidA/GUS reporter gene, you visualize when the promoter is activating expression by monitoring enzymatic activity of GUS, by detecting β-glucuronidase cleavage products. Here we describe a protocol for monitoring the DEK1 promoter activity in different tissues in Arabidopsis by GUS staining.

Key words

DEFECTIVE KERNEL1 DEK1 Calpain GUS uidA Arabidopsis 



We thank Stein Erik Lid for cloning the DEK1::uidA construct [7] and Dr. Lisha Shen for critical reading of the manuscript. This work was supported by the Norwegian Research Council and NMBU to H-G.O-S.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Biological SciencesNational University of SingaporeSingaporeSingapore
  2. 2.Department of Plant Sciences, BIOVITNorwegian University of Life SciencesÅsNorway

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