title: Three consistent patterns of response to substituted acridines in a variety of bacterial tester strains used for mutagenicity testing.
abstract: 91 substituted acridines were tested for mutagenicity in 1 strain of Escherichia coli (TA78) and 4 strains of Salmonella typhimurium (TA90, TA1537, TA98 and TA100). In general, compounds fall into 3 groups: (i) inactive in all strains, (ii) active in TA78, TA90 and TA1537, or (iii) active in TA98 and often one or more of the other frameshift strains. Compounds of class iii have previously been shown to differ from the others in causing excisible damage to DNA and in showing an enhanced mutagenic response when the plasmid pKM101 is present.
mesh_terms: D000166:Acridines / Q000138:chemical synthesis / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects; D009152:Mutagenicity Tests / Q000379:methods; D009153:Mutagens; D009154:Mutation; D012486:Salmonella typhimurium / Q000187:drug effects; D013045:Species Specificity; D013329:Structure-Activity Relationship
chemical_list: D000166:Acridines; D009153:Mutagens