Control of transcription of the rex-cl region of bacteriophage lambda.
D003090:Coliphages / Q000378:metabolism*; D003673:Defective Viruses; D004926:Escherichia coli / Q000378:metabolism; D005816:Genetic Complementation Test; D009154:Mutation; D014158:Transcription, Genetic; D010948:Viral Plaque Assay