Hepatitis C virus-related internal ribosome entry sites are found in multiple genera of the family Picornaviridae
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چکیده
منابع مشابه
Internal ribosome entry site within hepatitis C virus RNA.
The mechanism of initiation of translation on hepatitis C virus (HCV) RNA was investigated in vitro. HCV RNA was transcribed from the cDNA that corresponded to nucleotide positions 9 to 1772 of the genome by using phage T7 RNA polymerase. Both capped and uncapped RNAs thus transcribed were active as mRNAs in a cell-free protein synthesis system with lysates prepared from HeLa S3 cells or rabbit...
متن کاملThe picornavirus avian encephalomyelitis virus possesses a hepatitis C virus-like internal ribosome entry site element.
Avian encephalomyelitis virus (AEV) is a picornavirus that causes disease in poultry worldwide, and flocks must be vaccinated for protection. AEV is currently classified within the hepatovirus genus, since its proteins are most closely related to those of hepatitis A virus (HAV). We now provide evidence that the 494-nucleotide-long 5' untranslated region of the AEV genome contains an internal r...
متن کاملIdentification of the most accessible sites to ribozymes on the hepatitis C virus internal ribosome entry site.
The hepatitis C virus (HCV) is a major causative agent of chronic hepatitis and hepatocellular carcinoma. The development of alternative antiviral therapies is warranted because current treatments for the HCV infection affect only a limited number of patients and lead to significant toxicities. The HCV genome is exclusively present in the RNA form; therefore, ribozyme strategies to target certa...
متن کاملFunctional and structural similarities between the internal ribosome entry sites of hepatitis C virus and porcine teschovirus, a picornavirus.
Initiation of protein synthesis on picornavirus RNA requires an internal ribosome entry site (IRES). Typically, picornavirus IRES elements contain about 450 nucleotides (nt) and use most of the cellular translation initiation factors. However, it is now shown that just 280 nt of the porcine teschovirus type 1 Talfan (PTV-1) 5' untranslated region direct the efficient internal initiation of tran...
متن کاملConserved functional domains and a novel tertiary interaction near the pseudoknot drive translational activity of hepatitis C virus and hepatitis C virus-like internal ribosome entry sites
The translational activity of the hepatitis C virus (HCV) internal ribosome entry site (IRES) and other HCV-like IRES RNAs depends on structured RNA elements in domains II and III, which serve to recruit the ribosomal 40S subunit, eukaryotic initiation factor (eIF) 3 and the ternary eIF2/Met-tRNA(i)(Met)/GTP complex and subsequently domain II assists subunit joining. Porcine teschovirus-1 talfa...
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ژورنال
عنوان ژورنال: Journal of General Virology
سال: 2006
ISSN: 0022-1317,1465-2099
DOI: 10.1099/vir.0.81546-0