FIGURE 4.

Calculated dependence of the profiles of some bright layer lines on the axial tilt of the LCD of the stereospecifically attached myosin head. Layer lines are labeled on the corresponding panels. Numbers in brackets show the indices of the layer lines in the 500.5 nm long unit cell. Dashed lines correspond to the rigor-like configuration of the myosin head (black S1 in the bottom right panel), dotted lines correspond to the 30° axial tilt of LCD toward the M-line, solid lines correspond to “active” configuration where the LCD is tilted by 50° axially toward the M-line (white S1 in bottom right panel) and gray lines are calculated intensities of the actin layer lines without any bound heads. Calculations were made for the following parameter set: e = 0.25, f(S) = 0.4, d_max = 0, Δr_A = 3 nm, Δz_A = 4 nm, Ψ_ax = 0, Ψ_az = 0, prepower stroke.