FIG. 1.

Genetic organization of the CPMV genome. Open reading frames in the RNA molecules are indicated by open bars. The nucleotide positions of the start and stop codons are shown above the open reading frame, and the cleavage sites in the polyproteins are shown below. The 110K (24K plus 87K) intermediate processing product is the full-length polymerase (13). Abbreviations: co-pro, cofactor for proteinase; ntb, nucleotide-binding protein; pro, proteinase; pol, core polymerase; cr, cofactor for RNA2 replication; mp, movement protein; LCP, large coat protein; SCP, small coat protein.