Double-helical polar polymer of G-actin monomers (~42 kDa). ATP-actin adds at barbed end; ADP-actin dissociates at pointed end — treadmilling. Drives motility, division, endocytosis.
Double-helical polar polymer of G-actin monomers (~42 kDa). ATP-actin adds at barbed end; ADP-actin dissociates at pointed end — treadmilling. Drives motility, division, endocytosis.