The 3' end of the RNA-2 of arabis mosaic virus (ArMV) was cloned and sequenced. The N-terminal amino acid sequence of the virion coat protein was determined by Edman degradation and the corresponding coding region identified. This gene was modified at the 5' and 3' ends by use of mismatched primers in the polymerase chain reaction (PCR), in order to facilitate the cloning of the gene, and to pr...