title: Genetic analysis of an alteration of ribosomal protein S20 in revertants of an alanyl-tRNA-synthetase mutant of Escherichia coli.
mesh_terms: D000409:Alanine; D000604:Amino Acyl-tRNA Synthetases; D001426:Bacterial Proteins / Q000032:analysis / Q000378:metabolism*; D002874:Chromosome Mapping; D004171:Diploidy; D004926:Escherichia coli / Q000201:enzymology*; D005796:Genes; D009154:Mutation; D012270:Ribosomes / Q000378:metabolism*; D013489:Suppression, Genetic; D013696:Temperature; D014161:Transduction, Genetic
chemical_list: D001426:Bacterial Proteins; D000604:Amino Acyl-tRNA Synthetases; D000409:Alanine