Deletions in the conserved amino-terminal basic arm of cucumber mosaic virus coat protein disrupt virion assembly but do not abolish infectivity and cell-to-cell movement.

Abstract excerpt

The N-terminal basic arm of cucumber mosaic cucumovirus (CMV) coat protein (CP) contains a conserved arginine-rich motif, which is characteristic of RNA binding proteins of several plant and nonplant viruses. To identify regions of the CMV CP N-terminus that are essential for interacting with viral genomic RNA, a comprehensive set of mutations was engineered into biologically active clones of CMV RNA3 and the...

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