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AMB Express
Fig. 2 | AMB Express

Fig. 2

From: Cysteine degradation gene yhaM, encoding cysteine desulfidase, serves as a genetic engineering target to improve cysteine production in Escherichia coli

Fig. 2

Effects of yhaM expression on growth in the presence of cysteine at toxic concentrations. a Growth curves for wild-type E. coli MG1655 (closed diamond), MG1655ΔyhaM (open diamond), MG1655/vector (pSTV29) (closed circle), and MG1655/pYhaM (pSTV-yhaM7) (open circle) in the presence of 0 μM (top) or 100 μM (bottom) of cysteine. Representative growth curves are shown. b Culture time (h) required for wild-type E. coli MG1655, MG1655ΔyhaM, MG1655/vector (pSTV29), and MG1655/pYhaM (pSTV-yhaM7) to obtain OD660 = 0.2 in the absence (w/o cysteine) or presence of cysteine (100 μM). Values represent the averages based on two independent experiments

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