Mechanism of Signal Transduction Environmental signal a sensor kinase in the cell Sensor membrane phosphorylates kinase itself in response to an environmental signal. The phosphoryl group ATP ADP Cytoplasmic is then transferred to a membrane response regulator. The phosphorylated Response regulator response regulator serves as a repressor. Phosphatase activity RNA a phosphatase polymerase Transcription blocked DNA cycle the response Promoter Operator Structural genes regulator. e2的2 Pearon Eduon hgMechanism of Signal Transduction a sensor kinase in the cell membrane phosphorylates itself in response to an environmental signal. The phosphoryl group is then transferred to a response regulator. The phosphorylated response regulator serves as a repressor. a phosphatase cycle the response regulator