TABLE 3.

Results for Approach C: rapid-limit oscillation of the spin label within myosin

								Angle of oscillation
IASL-S1	χ2·10−5	gx′	gy′	gz′	Ax′	Ay′	Az′	α*	β*	γ*
Apo	75.92	2.0084	2.0057	2.0022	7.3G	7.7G	35.5G	13°	24°	15°
ADP	305.41	2.0082	2.0055	2.0023	8.2G	7.7G	34.4G	29°	25°	22°
ADP Vi component 1, 69%	34.5	2.00814	2.0045	2.0034	8.7G	17.2G	27.8G	64°	25°	16°
ADP Vi component 2, 31%		2.0082	2.0055	2.0023	8.2G	7.7G	34.4G	29°	25°	22°

Apparent g′ and A′ tensor values are determined from spectral fitting (Fig. 3); then the angles of oscillation are determined from Eq. 2.

^*α, β, and γ are the amplitudes (half angles) of oscillation about the x, y, and z axes of the nitroxide.