在大肠杆菌微细胞中，不经过由F性因子tra顺反子编码的内膜和外膜蛋白的蛋白水解加工进行输出。
Export without proteolytic processing of inner and outer membrane proteins encoded by F sex factor tra cistrons in Escherichia coli minicells.
作者信息
Achtman M, Manning P A, Edelbluth C, Herrlich P
出版信息
Proc Natl Acad Sci U S A. 1979 Oct;76(10):4837-41. doi: 10.1073/pnas.76.10.4837.
Most tra proteins encoded by the Escherichia coli F sex factor are incorporated into the minicell envelope. We have now assigned the tra proteins to cytoplasm (TraIp and 2b), inner membrane (TraEp, TraMp, and TraSp), and outer membrane (6e, TraAp, TraBp, TraJp, TraKp, TraLp, and TraTp). two proteins, TraDp and 6d, were associated with both inner and outer membranes. The proteins exported to the inner or outer membranes did not undergo proteolytic cleavage (processing) whereas beta-lactamase was processed normally.
大肠杆菌F性因子编码的大多数tra蛋白被整合到微细胞包膜中。我们现在已将tra蛋白定位到细胞质（TraIp和2b）、内膜（TraEp、TraMp和TraSp）和外膜（6e、TraAp、TraBp、TraJp、TraKp、TraLp和TraTp）。两种蛋白TraDp和6d与内膜和外膜都有关联。输出到内膜或外膜的蛋白未发生蛋白水解切割（加工），而β-内酰胺酶加工正常。
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