Ribosomal Protein Conferring Sensitivity to the Antibiotic Spectinomycin in <i>Escherichia coli</i>

Abstract

Reconstitution of 30 S ribosomal particles from 16 S ribosomal RNA and total proteins, or from core proteins and split proteins obtained from the ribosomes of strains of Escherichia coli sensitive to and resistant to spectinomycin, shows that the split protein fraction determines the response of polypeptide synthesis in virto to spectinomycin. Reconstitution of active particles in the presence of isolated split proteins allowed the identification of the single split protein responsible for spectinomycin sensitivity.