George Dinos, Dennis Synetos, Charalambos Coutsogeorgopoulos
Abstract:The inhibition of peptide bond formation by spiramycin was studied in an in vitro system derived from Escherichia coli. Peptide bonds are formed between puromycin (S) and Ac-Phe-tRNA, which is a component of complex C, i.e., of the [Ac-Phe-tRNA-70S ribosome-poly(U)] complex, according to the puromycin reaction: C+S (Ks)<==>CS (k3)==>C'+P [Synetos, D., & Coutsogeorgopoulos, C. (1987) Biochim. Biophys. Acta 923, 275-285]. It is shown that spiramycin (A) reacts with complex C and forms the spiramycin complex C*A,…
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