Figure 3. Per1 Promoter Activity Is Altered in PER-deficient Tissues.

Average Per1-luc bioluminescence (raw data) from SCN explants (A) and whole pituitary glands (B) from wildtype, heterozygous, or PER-deficient mice. Bioluminescence data from Per1^−/− mice were taken from [36]. The lighting condition of the previous light/dark cycle is indicated for the first day; open bars are light and black bars are dark.