Twinfilin-1 (TWF1)

Actin-binding protein involved in motile and morphological processes. Inhibits actin polymerization, probably by sequestering G-actin.

By capping the barbed ends of filaments, in addition, it regulates motility. Seems to play an important role in clathrin-mediated endocytosis and supply of endocytic organelles (By similarity).