,Two distinct conjugal transfer systems on Streptomyces plasmid pZL1

• 作 者: Liqian Zhao Li Zhong Zhongjun Qin
• 机 构: Key laboratory of Synthetic Biology, Shanghai Institute of Plant Physiology and Ecology, Shanghai In
• 出 处: 生物化学与生物物理学报（英文版）
• 发表日期: 2014年12期
• 关键词: @@

The mechanism of conjugal transfer of plasmids in Gram-negative and unicellular Gram-positive bacteria is commonly via a type Ⅳ secretion system (T4SS) [1].The genes encoding the T4S proteins are usually arranged in a single operon or a few operons.In Gram-negative Agrobacterium tumefaciens,the T4SS is encoded by the virB and virD operons (11 and 5 genes,respectively) [2].