Figure 9 : p53 oscillation.

From: Digital Signal Processing and Control for the Study of Gene Networks

Figure 9

(A) There are about five cycles per 30 hours or 0.18 cycles per hour. (B) By letting x(n) represent the p53 protein levels, can be computed using Eq. 39. It is shown that the frequency component (0.18 cycle/hour) has high value represented by a tall peak, indicating that it is one of the prominent frequency components contributing to x(n).