a specific interaction of the capping protein with the barbed end of actin filaments was indicated by its ability to inhibit actin filament assembly nucleated by spectrin-band 4.1-actin complex in 0.4 mm mg2+ , accelerate actin filament formation and increase the critical concentration of actin in 2-5 mm mg2+ , 75-100 mm kcl , and inhibit the addition of actin monomers to the barbed end of heavy meromyosin-decorated actin filaments as determined by electron microscopy .
C0025979
actin filament
C1183336
the barbed end of