Table 1.

ATPase assays

COS7 ATPase assays.

The results from ATPase assays presented in Fig. 6 for COS7 cells are summarized. The K_Ca2+ ([Ca²⁺] resulting in half-maximal activation) is given in pCa units (right-hand column) and nanomolar concentration (left-hand column). The change in K_Ca²⁺ (ΔK_Ca²⁺) relative to control (SERCA1 alone) is given in pCa units. Results are mean values ± S.E. NA means not applicable.

	KCa2+		KCa2+	n
	nm [C]	pCa2+
SERCA1 alone	468 ± 17	6.33 ± .016a	NA	4
SERCA1 + sAnk1	708 ± 130	6.15 ± .089a,b,c	−0.18	4
SERCA1 + SLN	1122 ± 190	5.95 ± .081a,b	−0.38	4
SERCA1 + sAnk1 + SLN	759 ± 120	6.12 ± .071b,c	−0.21	4

^a Data were previously shown in Ref. 1. All experiments presented were performed at same time.

^b Data are significantly different from SERCA1 alone.

^c Data are significantly different from SERCA1 + SLN.