Four SOS genes have been identified that contribute to the adaptive response against methylating agents: ada, alkA, alkB and aidB. ada and alkB are cotranscribed from a single promoter.
Four genes, SOS1, SOS2, SOS3, and SOS4, have been identified that contribute to the adaptive response against methylating agents: ada, alkA, alkB, and aidB. Ada and AlkB are co-transcribed from a single promoter.