Genome-associated RNA Polymerase II includes the dissociable Rpb4/7 subcomplex

Yeast RNA polymerase (Pol) II consists of a ten-subunit core enzyme and the Rpb4/7 subcomplex, which is dispensable for catalytic activity and dissociates in vitro酵母RNA聚合酶II（RNA polymerase II, Pol II）由十亚基核心酶与Rpb4/7亚复合物组成，该亚复合物对其催化活性非必需，且可在体外发生解离。