Goldbeter1995_CircClock

  public model
Short description

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To cite BioModels Database, please use: Li C, Donizelli M, Rodriguez N, Dharuri H, Endler L, Chelliah V, Li L, He E, Henry A, Stefan MI, Snoep JL, Hucka M, Le Novère N, Laibe C (2010) BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models. BMC Syst Biol., 4:92.

Format
SBML (L2V1)
Related Publication
  • A model for circadian oscillations in the Drosophila period protein (PER).
  • Goldbeter A
  • Proceedings. Biological sciences , 9/ 1995 , Volume 261 , pages: 319-324
  • Faculté des Sciences, Université Libre de Bruxelles, Brussels, Belgium.
  • The mechanism of circadian oscillations in the period protein (PER) in Drosophila is investigated by means of a theoretical model. Taking into account recent experimental observations, the model for the circadian clock is based on multiple phosphorylation of PER and on the negative feedback exerted by PER on the transcription of the period (per) gene. This minimal biochemical model provides a molecular basis for circadian oscillations of the limit cycle type. During oscillations, the peak in per mRNA precedes by several hours the peak in total PER protein. The results support the view that multiple PER phosphorylation introduces times delays which strengthen the capability of negative feedback to produce oscillations. The analysis shows that the rhythm only occurs in a range bounded by two critical values of the maximum rate of PER degradation. A similar result is obtained with respect to the rate of PER transport into the nucleus. The results suggest a tentative explanation for the altered period of per mutants, in terms of variations in the rate of PER degradation.
Contributors
Nicolas Le Novère

Metadata information

is
BioModels Database MODEL6617161845
BioModels Database BIOMD0000000016
KEGG Pathway dme04710
isDescribedBy
PubMed 8587874
hasTaxon
isVersionOf
Curation status
Curated
  • Model originally submitted by : Nicolas Le Novère
  • Submitted: 13-Sep-2005 14:13:05
  • Last Modified: 25-Feb-2015 13:08:26
Revisions
  • Version: 2 public model Download this version
    • Submitted on: 25-Feb-2015 13:08:26
    • Submitted by: Nicolas Le Novère
    • With comment: Current version of Goldbeter1995_CircClock
  • Version: 1 public model Download this version
    • Submitted on: 13-Sep-2005 14:13:05
    • Submitted by: Nicolas Le Novère
    • With comment: Original import of Goldbeter1995_CircClock
Curator's comment:
(added: 06 Aug 2007, 13:20:48, updated: 06 Aug 2007, 13:20:48)
Figure 2 reproduced with COPASI 4.1 (build 21)