출처: https://www.embl.de/pepcore/pepcore_services/cloning/choice_vector/ecoli/vectorfeatures/ Choice of Vector - E.coli Vectors - Vector Features - EMBL The basic architecture of an E. coli expression vector is shown in the figure below and contains the following features: Selectable marker. In the absence of selective pressure plasmids are lost from the host. Especially in the case of very high ..