Actin paracrystalline sheets formed at the surface of positively charged liposomes.
Paracrystalline aggregates of F-actin spontaneously assemble at the surface of positively charged liposomes. This single-layered paracrystalline array is made up of parallel and juxtaposed actin filaments aligned in register and showing the typical 36-nm periodicity which corresponds to the half-pitch of the double helix strand. This crystallization of pure actin results from a direct interaction between actin and positively charged lipids and does not occur with negative or neutral lipids.
D000199:Actins; D000818:Animals; D003460:Crystallization; D008081:Liposomes; D008854:Microscopy, Electron; D011487:Protein Conformation; D011817:Rabbits
D000199:Actins; D008081:Liposomes