Abortive translation caused by peptidyl-tRNA drop-off at NGG codons in the early coding region of mRNA
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چکیده
منابع مشابه
Peptidyl-tRNA Regulates the GTPase Activity of Translation Factors
Rapid protein synthesis in bacteria requires the G proteins IF2, EF-Tu, EF-G, and RF3. These factors catalyze all major steps of mRNA translation in a GTP-dependent manner. Here, it is shown how the position of peptidyl-tRNA in the ribosome and presence of its peptide control the binding and GTPase activity of these translation factors. The results explain how idling GTPase activity and negativ...
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Half the ribosomes translating the mRNA for phage T4 gene 60 topoisomerase subunit bypass a 50 nucleotide coding gap between codons 46 and 47. The pairing of codon 46 with its cognate peptidyl-tRNA anticodon dissociates, and following mRNA slippage, peptidyl-tRNA re-pairs to mRNA at a matched triplet 5' adjacent to codon 47, where translation resumes. Here, in studies with gene 60 cassettes, it...
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ژورنال
عنوان ژورنال: FEBS Journal
سال: 2005
ISSN: 1742-464X,1742-4658
DOI: 10.1111/j.1742-4658.2005.04926.x