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Comparison of the amino acid sequences of pRGO1 Orf1 (A) and Orf2 (B) with the corresponding amino acid sequences deduced from pRBL1 (accession no. U39878), pXZ10142 (accession no. X72691), pAL5000 (accession no. M23557), and pMB1 (accession no. X84655). Amino acids common to all replication proteins are indicated by asterisks. Gaps have been introduced to optimize the homology. The overline in panel B indicates the HTH motif.
