title: Altered S5 and S20 ribosomal proteins in revertants of an alanyl-tRNA synthetase mutant of Escherichia coli.
mesh_terms: D000409:Alanine; D000604:Amino Acyl-tRNA Synthetases; D001426:Bacterial Proteins; D004352:Drug Resistance, Microbial; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology; D005779:Immunodiffusion; D009154:Mutation; D010641:Phenotype; D012270:Ribosomes; D000198:Spectinomycin; D013307:Streptomycin; D013696:Temperature
chemical_list: D001426:Bacterial Proteins; D000198:Spectinomycin; D000604:Amino Acyl-tRNA Synthetases; D000409:Alanine; D013307:Streptomycin