The mechanism of macrolide's action indicates that the binding sites of macrolides are located inside the nascent peptide exit tunnel of the ribosomal 50S subunit near the peptidyl transferase center.
抗菌机制研究表明：大环内酯抗生素的作用靶点位于50S亚基肽通道的出口处，紧邻肽酰转移酶中心。
Users can browse three-dimensional Expo Sites and search the information of the public facilities including catering, toilets, metro entrance and exit.
用户可以浏览三维世博园区，查询餐饮、卫生间、地铁出入口等公共设施信息。
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