Decrease in the S1 Protein of 30‐S Ribosomal Subunits in Polyamine‐Requiring Mutants of Escherichia coli Grown in the Absence of Polyamines

Abstract

The reason for the decrease of polypeptide‐synthetic activity of 30‐S ribosomal subunits obtained from two polyamine‐requiring mutants of Escherichia coli, grown in the absence of polyamines, has been studied by analyzing the total and split proteins of 30‐S subunits by disc gel and slab get electrophoreses. It was concluded that the decrease of S1 protein in 30‐S subunits was responsible for the decrease of polypeptide synthesis in polyamine‐requiring mutants of E. coli grown in the absence of polyamines.