A: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State B: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State C: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State D: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State E: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State F: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State G: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State H: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State I: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State J: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State K: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State L: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State M: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State N: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State O: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State P: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State Q: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State R: Engineered fluorescent biosensor NitrOFF1 in the "OFF" State ヘテロ分子