Mutational Evidence for a Functional Connection between Two Domains of 23S rRNA in Translation Termination
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چکیده
منابع مشابه
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15 صفحه اولRoles of helix H69 of 23S rRNA in translation initiation.
Initiation of translation involves the assembly of a ribosome complex with initiator tRNA bound to the peptidyl site and paired to the start codon of the mRNA. In bacteria, this process is kinetically controlled by three initiation factors--IF1, IF2, and IF3. Here, we show that deletion of helix H69 (∆H69) of 23S rRNA allows rapid 50S docking without concomitant IF3 release and virtually elimin...
متن کاملA functional peptide encoded in the Escherichia coli 23S rRNA.
A pentapeptide open reading frame equipped with a canonical ribosome-binding site is present in the Escherichia coli 23S rRNA. Overexpression of 23S rRNA fragments containing the mini-gene renders cells resistant to the ribosome-inhibiting antibiotic erythromycin. Mutations that change either the initiator or stop codons of the peptide mini-gene result in the loss of erythromycin resistance. No...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2002
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.184.18.5052-5057.2002