Binding or Hydrolysis? How Does the Strigolactone Receptor Work?

Marek Marzec; Philip Brewer

doi:10.1016/j.tplants.2019.05.001

Binding or Hydrolysis? How Does the Strigolactone Receptor Work?

Trends Plant Sci. 2019 Jul;24(7):571-574. doi: 10.1016/j.tplants.2019.05.001. Epub 2019 May 28.

Authors

Marek Marzec¹, Philip Brewer²

Affiliations

¹ Department of Genetics, Faculty of Biology and Environmental Protection, University of Silesia, Katowice 40-032, Poland. Electronic address: marek.marzec@us.edu.pl.
² ARC Centre of Excellence in Plant Energy Biology, School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, SA 5064, Australia.

PMID: 31151745
DOI: 10.1016/j.tplants.2019.05.001

Abstract

The strigolactone (SL) receptor in plants is unusual in that it both binds and hydrolyses SL molecules. Landmark studies had proposed that a product of hydrolysis irreversibly binds the receptor and then activates signalling. However, recent breakthrough articles (Seto et al. Nat. Commun. 2019;10:191 and Shabek et al. Nature 2018;563:652-656) have revealed a new model based on inhibition of hydrolysis by protein conformation.

Keywords: D14; hydrolysis; receptor; signal perception; signalling; strigolactone.

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MeSH terms

Hydrolysis
Lactones
Ligases
Plant Growth Regulators*
Plant Proteins
Ubiquitin*

Substances

Lactones
Plant Growth Regulators
Plant Proteins
Ubiquitin
Ligases