Release of repressor control of ribonucleotide reductase by thymine starvation.

Adenosine Triphosphate Chloramphenicol/pharmacology Chromatography, Paper Cytosine Nucleotides Diphosphates Enzyme Repression Escherichia coli/enzymology Guanine Nucleotides In Vitro Techniques Kinetics Magnesium Mutation NAD Nucleosides Oxidoreductases/metabolism Streptomycin/pharmacology Thymine/metabolism

Cytosine Nucleotides Diphosphates Guanine Nucleotides Nucleosides NAD Chloramphenicol Adenosine Triphosphate Oxidoreductases Magnesium Thymine Streptomycin