Figure 1.
Genome organization of the RNA coliphage Qβ. A2 protein gene or maturation gene (from 62–1321 bases); Cp or major coat protein gene (from 1345–1743 bases); A1 protein gene or readthrough (from 1345–2331 bases); Replicase or the β-subunit gene of the RNA-dependent-RNA-polymerase (from 2353–4119 bases). The 5′ and 3” ends are flanked by non coding bases like any other open reading frame on this genome.