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New aspects on the kinetics of activation of ribosomal peptidyltransferase-catalyzed peptide bond formation by monovalent ions and spermine

✍ Scribed by Maria Michelinaki; Anestis Spanos; Charalambos Coutsogeorgopoulos; Dimitrios L. Kalpaxis

Book ID: 114149487
Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 134 KB
Volume: 1342
Category: Article
ISSN: 0167-4838
DOI: 10.1016/s0167-4838(97)00097-6

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Effect of spermine on peptide-bond formation, catalyzed by ribosomal peptidyltransferase

✍ Dimitrios L. Kalpaxis; Denis Drainas 📂 Article 📅 1992 🏛 Springer 🌐 English ⚖ 619 KB

The effect of spermine on the binding of AcPhe-tRNA to poly(U)-programmed ribosomes (step 1) and on the puromycin reaction (step 2) has been studied in a cell-free system, derived from E. coli. In the absence of ribosomal wash (FWR fraction) and at suboptimal concentration of Mg++ (6 mM), spermine s