TABLE 2.

Parameters needed to define the myosin cross-bridge lattice in IFM and parameter values for the best model

		Best model values
Parameter	Typical range	Head 1	Head 2
*Slew, α	−90° ≤ α ≤ 90°	−101.71°	84.77°
*Tilt, β	−135° ≤ ι ≤ 45°	−10.92°	−32.23°
*Rotation, θ	0° ≤ θ ≤ 360°	−5.23°	−6.39°
Radius, R	5.5 nm ≤ Rmy ≤ 15.0 nm	12.89 nm
Lattice rotation, φ	0° ≤ φ ≤ 360°	226.52°
Head separation, Hs	0 nm ≤ Hs ≤ 5.0 nm	3.85 nm
Head angle, Ha	−45° ≤ Ha ≤ 45°	−26.28°
Pivot slew, αp	−90° ≤ αp ≤ 90°	−70.30°
Pivot tilt, βp	−90° ≤ ιp ≤ 90°	−27.26°
Pivot rotation, θp	0° ≤ θp ≤ 360°	60.23°

Note that the parameters marked ^* have individual values for each of the nonequivalent myosin heads. Other parameters are the same for both heads. The total number of parameters used was 13.