>tr|U9ZKX7|U9ZKX7_ECOLX Nitrous oxide-stimulated promoter OS=Escherichia coli 909945-2 GN=HMPREF1620_04884 MSGKRISREKLTIKKMIDLYQAKCPQASAEPEHYEALFVYAQKRLDKCVFGEEKPACKQC PVHCYQPAKREEMKQIMRWAGPRMLWRHPILTVRHLIDDKRPVPELPEKYRPKKPHE