Table 2.

Superhelical Parameters as Defined in Figure 2b

	YM5A	His-YM5A/Ca2+	YM5A/Ca2+
Repeats per turn	12.4 ± 0.3	14.0 ± 0.5	13.5 ± 0.6
Height of turn (Å)	86.4 ± 9.0	97.2 ± 5.5	97.4 ± 11.5
Radius (Å)	14.9 ± 0.7	17.1 ± 1.7	16.3 ± 0.6
2 Omega (°)	29.0 ± 0.7	25.8 ± 0.9	26.7 ± 1.1