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Translocation in Bacillus subtilis: characterization of elongation factor G by peptidyl-[3H]puromycin synthesis.

By Y Aharonowitz and E Z Ron


This communication describes the characterization of elongation factor G from Bacillus subtilis by the translocation of "native" peptide donors. Translocation was followed by elongation factor G-dependent increase in the synthesis of peptidyl-[3H]puromycin using "washed" ribosomes carrying in vivo-bound peptidyl-transfer ribonucleic acid ("native" peptidyl-transfer ribonucleic acid) molecules as peptide donors. Such ribosomes were obtained from cell extracts by washing at a high salt concentration. The use of "native" peptide donors facilitated the study of translocation under conditions that are closer to the in vivo state than those in the methods previously employed

Topics: Research Article
Year: 1976
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Provided by: PubMed Central
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