Fig. 3.
Protein phosphatase 2A (PP2A) function in sham-operated and MI hearts. A: comparison of total PP2A activity in myocyte homogenates. *P < 0.05 compared with sham. Numbers in parentheses indicate number of hearts in each group. B: IP of PP2A from sham-operated and MI left ventricular homogenates using antibody recognizing the α1C-subunit of Cav1.2: representative Western IB (top) and densitometry analyses of PP2A protein level normalized to sham operated (bottom). The position of the molecular weight standard is indicated at the left of the blot. Mean values were from 4 experiments. *P < 0.05 compared with sham; #P < 0.05 compared with IP sham.