Talk about assembly of proteins to actin filaments and their roles.

Can associate with myosin for cell movement. Associate with villin and fimbrin for internal structure of microvilli (connection between thin filaments present) Attachement to Plasma membrane Polymerization and depolymerization nucleaiton and inhibition. Actin filaments can cooperate with myosin forming the contractile ring that separates the cells during cytokinesis.