title: Ambiguity and transcriptional errors as a result of modification of exocyclic amino groups of cytidine, guanosine, and adenosine.
mesh_terms: D000241:Adenosine / Q000031:analogs & derivatives*; D001483:Base Sequence; D003562:Cytidine / Q000031:analogs & derivatives*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology; D005815:Genetic Code; D006151:Guanosine / Q000031:analogs & derivatives*; D006860:Hydrogen Bonding; D009690:Nucleic Acid Conformation; D013329:Structure-Activity Relationship; D014158:Transcription, Genetic
chemical_list: D006151:Guanosine; D003562:Cytidine; D012321:DNA-Directed RNA Polymerases; D000241:Adenosine