Optimizing E. coli-Based Membrane Protein Production Using Lemo21(DE3) and GFP-Fusions

Optimizing the conditions for the overexpression of membrane proteins in E . coli and their subsequent purification is usually a laborious and time-consuming process. Combining the Lemo21(DE3) strain, which conveniently allows to identify the optimal expression intensity of a membrane protein using only one strain, and membrane proteins C-terminally fused to Green Fluorescent Protein (GFP) greatly facilitates the production of high-quality membrane protein material for functional and structural studies.