Figure 4.

Comparison of GIRK1 mRNA expression levels by real time RT-PCR in MDA-MB-453 cells treated with propranolol constantly for 6 days. Propranolol (1 μM) was added daily for six days. Real time RT-PCR graphs of mRNA expression levels of GIRK1 and beta-actin. The graphs are from a Cepheid Smart Cycler using the same cDNA samples as used in Figure 2. N = 5 for each.