And the tubulin assembly promoted by taxol can happen in the absenceof GTP, which is normally required for microtubule assembly.

• 并且紫杉醇促使的微管蛋白可以在缺乏GTP（在一般情况下都需要GTP的存在才能使微管蛋白聚合成微管）的情况下聚合。