What would occur if CapZ was inhibited in cells?
A)increased organization of actin in stereocilia due to stabilized actin dynamics
B)increased rates of polymerization due to reduced availability for ADP-G-actin
C)increased steady-state treadmilling of F-actin
D)faster movement of cells toward a chemical signal

Question

Quizplus · Accepted Answer

CapZ caps the barbed (plus) ends of actin filaments, preventing both the addition and loss of actin subunits at this end. If CapZ is inhibited, the barbed ends would be uncapped, leading to increased dynamics of actin filaments. This would enhance the treadmilling process, where actin monomers are added at the barbed end and removed from the pointed (minus) end, maintaining a dynamic steady state of actin filament turnover.

What Would Occur If CapZ Was Inhibited in Cells