title: Characterization of missense suppressors of a double mutant of the tryptophan synthetase alpha chain of Escherichia coli.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D004926:Escherichia coli / Q000235:genetics*; D009154:Mutation; D014176:Protein Biosynthesis; D012343:RNA, Transfer / Q000235:genetics; D013329:Structure-Activity Relationship; D013489:Suppression, Genetic; D014367:Tryptophan Synthase / Q000235:genetics*
chemical_list: D012343:RNA, Transfer; D014367:Tryptophan Synthase