1887

Abstract

The assembly of adenovirus particles is a multistep process, in which viral genomic DNA is selected and subsequently inserted into preformed empty capsids. The selective encapsidation of the adenovirus genome is directed by -acting packaging motifs, termed A repeats due to their AT-rich character in DNA sequence. A repeats are usually located at the left end of the viral genome. In this report, the construction and analysis of bovine adenovirus type 3 (BAdV-3) mutants containing deletion mutations introduced into the AT-rich regions are described. The main -acting packaging domains of BAdV-3 were localized between nt 224 and 540 relative to the left end of the viral genome. They displayed a functional redundancy and followed a hierarchy of importance. In addition, the results demonstrated that not all of the AT-rich units functioned as -acting packaging motifs.

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2003-11-01
2020-05-28
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