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Growth and GDH activities of E. coli XL-1 Blue(pGDH1) and E. coli BL21(pGDH1). Symbols: ▴, E. coli XL-1 Blue(pGDH1) cell growth; 
, E. coli BL21(pGDH1) cell growth; •, GDH activity of E. coli XL-1 Blue(pGDH1) CE; ▪, GDH activity of E. coli BL21(pGDH1) CE.
