Protein over-expression in Escherichia coli triggers adaptation analogous to antimicrobial resistance.

Abstract excerpt

BACKGROUND: The E. coli pET system is the most widely used protein over-expression system worldwide. It relies on the assumption that all cells produce target protein and it is generally believed that integral membrane protein (IMP) over-expression is more toxic than their soluble counterparts. RESULTS: Using GFP-tagged proteins, high level over-expression of either soluble or IMP targets results in > 99.9% cell...

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