Fig. 3From: Cysteine degradation gene yhaM, encoding cysteine desulfidase, serves as a genetic engineering target to improve cysteine production in Escherichia coli Induction of yhaO and yhaM transcription by cysteine. Time course of the relative yhaO (square), yhaM (triangle), and metC (circle) mRNA levels after the addition of cysteine (cysteine-shock). Relative mRNA levels compared with the mRNA level before cysteine addition are shown. Values represent the averages of the results based on three independent experiments and the error bar represents one standard deviationBack to article page