Structural organization and energy storage in crosslinked actin assemblies
Fig 4
Phase diagram of actin network organization as a function of the crosslinking rate kf and filament length L.
(A, D) Local nematic order parameter Slocal as a function of kf and L. (B, E) Number of attached crosslinkers Nattach as a function of kf and L. (C, F) Classification of actin network organizations as a function of kf and L. The extensional stiffness κext is 0.1pN/nm in panels (A-C), and 1pN/nm in panels (D-F). In panels (A, B, D, E), plots are constructed by interpolation of results obtained for increment ΔL = 27nm of L between 81nm and 218nm, and increment Δkf = 0.1s−1 of kf between 0.1s−1 and 1s−1. The value for each parameter set is an average over 10 simulations. In (C) and (F), the border separating bundle (light gray) from meshwork (gray) is defined by Slocal = 0.75. The border separating meshwork (gray) from uncrosslinked (dark gray) is defined by Nattach = 300.