title: Mutagenesis in Escherichia coli. V. Attempted interconversion of ochre and amber suppressors and mutational instability due to an ochre suppressor.
mesh_terms: D002470:Cell Survival; D004926:Escherichia coli; D005827:Genetics, Microbial; D007930:Leucine / Q000378:metabolism; D009153:Mutagens / Q000494:pharmacology; D009154:Mutation / Q000187:drug effects*; D011687:Purines / Q000494:pharmacology; D013489:Suppression, Genetic; D014443:Tyrosine / Q000378:metabolism; D014466:Ultraviolet Rays
chemical_list: D009153:Mutagens; D011687:Purines; D014443:Tyrosine; D007930:Leucine