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大多数mRNA以poly(A)尾部终止,并由poly(A)聚合酶和对mRNA特异的因子共同催化。此反应是动态的,包括起始、延伸和终止阶段。
Most mRNAs terminate at the poly (A) tail and are co-catalyzed by poly (A) polymerase and mRNA-specific factors. This reaction is dynamic, including the start, extension and termination stages.