FIGURE 3.

Diagrams illustrating iterative rules (Eq. 14) for components of the N-site myosin-only transfer matrix Z_N, with interaction range r = 7. The component z_N+1,1 in which the leading site is occupied by myosin (•), can be expressed in terms of N-site components, z_Nj, in which the leading j − 1 sites are unoccupied (○) and the jth site is occupied (j ≤ 7) or unoccupied (j = 8). In the bottom diagram, the leading myosin binds independently and requires a multiplicative factor K (Eq. 6). Interacting myosins within range r are linked, and require a factor when separated by j sites. Similar diagrams apply for the z_N+1,j.