Figure 3

Window-averaged scores for sequence identity among the ARV λB, AqRV VP2, and MRV λ3 RNA-dependent RNA polymerase proteins. To provide consistent weighting to the averaged scores, only the two most-distant clones from each of the three groups (ARV: ARV138 and ARV176; AqRV: GCRV and CSRV; MRV: T1L and T2J – see text for details) were used. Identity scores averaged over running windows of 15 amino acids and centered at consecutive amino acid positions are shown for ARV:MRV comparisons (dashed lines) and ARV:MRV:AqRV comparisons (solid line). The global identity scores for each of the compared sequence sets are indicated by the horizontal lines. Previously-identified enzymatic motifs are indicated with boxes below the plots.