Internal initiation of translation of bovine viral diarrhea virus RNA
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Updated: Oct 20, 2026

In Vitro Transcribed RNA-based Luciferase Reporter Assay to Study Translation Regulation in Poxvirus-infected Cells
Published on: May 1, 2019
1Morse Institute for Molecular Genetics, State University of New York Health Science Center at Brooklyn, 450 Clarkson Avenue, Brooklyn, New York, 11203, USA.
Abstract:
Initiation of translation on the bovine viral diarrhea virus (BVDV) internal ribosomal entry site (IRES) was reconstituted in vitro from purified translation components to the stage of 48S ribosomal initiation complex formation. Ribosomal binding and positioning on this mRNA to form a 48S complex did not require the initiation factors eIF4A, eIF4B, or eIF4F, and translation of this mRNA was resistant to inhibition by a trans-dominant eIF4A mutant that inhibited cap-mediated initiation of translation. The BVDV IRES contains elements that are bound independently by ribosomal 40S subunits and by eukaryotic initiation factor (eIF) 3, as well as determinants that mediate direct attachment of 43S ribosomal complexes to the initiation codon.
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