cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communication cellular response to stimulus cell communicationcell communication cellular response to stimuluscellular response to stimulus signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activity hormone binding amide binding signaling receptor activitysignaling receptor activity hormone bindinghormone binding amide bindingamide binding membrane membrane membrane membrane membrane membrane membrane membrane membrane membrane membranemembrane