TABLE 3.

Effect of PLB on SERCA activity (Fig. 3), mean ± S.E.

Sample	KCa	pKCa	−ΔpKCa	n
	μm
No PLB	0.32 ± 0.01	6.50 ± 0.01		4
U-PLB	0.78 ± 0.02	6.11 ± 0.01	0.39 ± 0.02	4
P16-PLB	0.44 ± 0.03	6.36 ± 0.03	0.14 ± 0.03	4
P17-PLB	0.67 ± 0.03	6.17 ± 0.02	0.33 ± 0.03	4
2P-PLB	0.53 ± 0.05	6.28 ± 0.04	0.22 ± 0.04	4