Table 3.

Relative Protein Levels and Oscillation Periods in MDMX-Null Cells

	Mean	Standard error	CV
p53 peak amplitude	2.70	0.25	0.09
p53 trough amplitude	1.62	0.17	0.10
p53 peak width	6.71(h)	0.75(h)	0.11
p53 period	6.89(h)	0.49(h)	0.07
MDM2 peak amplitude	7.01	1.49	0.21
MDM2 trough amplitude	1.64	0.38	0.23
MDM2 peak width	6.69(h)	0.82(h)	0.12
MDM2 period	6.88(h)	0.52(h)	0.08

Levels of p53 and MDM2 are normalized by the levels in cells with MDMX, 10⁴ (p53) and 5.6 × 10⁴ (MDM2) molecules per cell (Wang et al., 2007).