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Fig. 3 | Microbial Cell Factories

Fig. 3

From: Bottom-up synthetic biology approach for improving the efficiency of menaquinone-7 synthesis in Bacillus subtilis

Fig. 3

Optimising the overexpression of the key enzyme MenA and inhibiting the MK-7 pathway. a Schematic diagram depicting the construction of BS006, BS007, BS008, and BS009. b The titres of MK-7 in BS006, BS007, BS008, and BS009 after 120 h fermentation. c Growth curves of BS006, BS007, BS008, and BS009. d Relative expression of menA in BS168, BS007, BS008, and BS009. All experiments were performed in triplicate and error bars represent the standard deviation (SD)

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