Regulated proteolysis in light-related signaling pathways

Curr Opin Plant Biol. 2009 Feb;12(1):49-56. doi: 10.1016/j.pbi.2008.10.009. Epub 2008 Dec 10.


Post-translational modification is an important mechanism to determine protein levels and/or activities in cells. The process of conjugation of ubiquitin units to particular proteins, ubiquitination, usually leads to proteasomal degradation. During the past several years considerable work has been done to reveal the role of ubiquitination in the regulation of plant signaling and development. This article focuses on recent advances made on the study of ubiquitin-mediated proteolysis of several light-related signaling pathways, such as photomorphogenesis, circadian clock function, and photoperiodic flowering.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • Arabidopsis / enzymology
  • Arabidopsis / radiation effects
  • Circadian Rhythm / radiation effects
  • Light*
  • Photoperiod
  • Protein Processing, Post-Translational / radiation effects*
  • Signal Transduction / radiation effects*