Genetic evidence for an essential role for potyvirus CI protein in cell-to-cell movement.


The potyvirus cylindrical inclusion (CI) protein, an RNA helicase required for genome replication, was analyzed genetically using alanine-scanning mutagenesis. Thirty-one mutations were introduced into the CI protein coding region of modified tobacco etch virus (TEV) genomes expressing either beta-glucuronidase or green fluorescent protein reporters. Twelve… (More)


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