Jc. Leloup et A. Goldbeter, TEMPERATURE COMPENSATION OF CIRCADIAN-RHYTHMS - CONTROL OF THE PERIODIN A MODEL FOR CIRCADIAN OSCILLATIONS OF THE PER PROTEIN IN DROSOPHILA, Chronobiology international, 14(5), 1997, pp. 511-520
The factors affecting the period are examined in a model for circadian
oscillations of the period protein (PER) in Drosophila. The model for
the circadian clock is based on multiple phosphorylation of PER and o
n the negative feedback exerted by PER on the transcription of the per
iod (per) gene. The results are used to address the possible bases of
the relative invariance of the period of oscillations with respect to
temperature. Such a phenomenon, referred to as temperature compensatio
n, represents one of the most conspicuous properties of circadian rhyt
hms.