Internal ribosome entry sites of viral and cellular RNAs

In recent years mechanism of internal initation of translation in eukaryotic cells commands the attention of molecular biologists in increasing frequency. Ten years ago, experiments with picornaviruses demonstrated the ability of 40S ribosomal subunits to bind to nucleotide sequences localized far f...

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Published in:Molecular biology (New York) 2000-03, Vol.34 (2), p.157-167
Main Authors: Sizova, D V, Shatsky, I N
Format: Article
Language:English
Subjects:
Localization
Proteins
Ribonucleic acid
Ribosomal subunits
RNA
Translation
Translation initiation
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description In recent years mechanism of internal initation of translation in eukaryotic cells commands the attention of molecular biologists in increasing frequency. Ten years ago, experiments with picornaviruses demonstrated the ability of 40S ribosomal subunits to bind to nucleotide sequences localized far from the 5′ ends of RNA molecules, and since then numerous viral and even cellular RNAs were shown to be capable of internal initiation of translation. In the present survey, data on the localization, structure, and functional load of these internal ribosome entry sites (IRES elements) of viral and cellular RNAs, as well as on proteins capable of strong and highly specific binding to IRES elements, are discussed. A conclusion is that a unified model of structure and fuctioning of viral and cellular IRES elements cannot be suggested.
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subjects Localization
Proteins
Ribonucleic acid
Ribosomal subunits
RNA
Translation
Translation initiation
title Internal ribosome entry sites of viral and cellular RNAs
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