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tej defines a role for poly(ADP-ribosyl)ation in establishing period length of the Arabidopsis circadian oscillator

Academic Article
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Overview

authors

  • Panda, Satchidananda
  • Poirier, G. G.
  • Kay, Steve A.

publication date

  • July 2002

journal

  • Developmental Cell  Journal

abstract

  • In a genetic screen for altered circadian period length in Arabidopsis, we isolated a mutant with a long free-running period. The tej mutation acts independently of light quality and quantity. It affects clock-controlled transcription of genes in Arabidopsis and alters the timing of the photoperiod-dependent transition from vegetative growth to flowering. Map-based cloning of TEJ identified a poly(ADP-ribose) glycohydrolase (PARG). An inhibitor of poly(ADP-ribosyl)ation rescued the period phenotype of tej mutant and shortened the period length of wild-type plants. Posttranslational poly(ADP-ribosyl)ation of an oscillator component may contribute to setting the period length of the Arabidopsis central oscillator.

subject areas

  • Arabidopsis
  • Arabidopsis Proteins
  • Benzamides
  • Biological Clocks
  • Circadian Rhythm
  • Cloning, Molecular
  • Enzyme Inhibitors
  • Gene Expression Regulation, Plant
  • Glycoside Hydrolases
  • Molecular Sequence Data
  • Mutation
  • Periodicity
  • Phenotype
  • Photic Stimulation
  • Photoperiod
  • Poly Adenosine Diphosphate Ribose
  • Sequence Homology, Amino Acid
  • Sequence Homology, Nucleic Acid
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Identity

International Standard Serial Number (ISSN)

  • 1534-5807

Digital Object Identifier (DOI)

  • 10.1016/s1534-5807(02)00200-9

PubMed ID

  • 12110167
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Additional Document Info

start page

  • 51

end page

  • 61

volume

  • 3

issue

  • 1

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