試題詳解

32. Which of the following statements about actin is (are) CORRECT?
(A). It constitutes intermediate filaments and is one of the major components of cytoskeleton
(B) The growth rate of actin filament is faster at the (+) end, which contains GDP-bound actins
(C) Branching of actin filaments is mainly mediated by the Arp2/3 complex
(D) Ras is the major small GTPase that regulates actin dynamics
(E) Transport along the actin filaments is mediated by myosin motors