The first in a new class of antibacterial drugs called pleuromutilins, retapamulin binds to a site on the 50S subunit of the bacterial ribosome to inhibit protein synthesis.
该药是首个获准上市的截短侧耳素类新型抗生素药物，它与细菌核糖体50S亚基结合而抑制细菌蛋白的合成。
A complete ribosome is composed of one larger and one smaller subunit.
一个完整的核糖体是由一个较大的大亚基和一个较小的小亚基组成。
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