Figure 4.

(A) Putative replication operon from pKEF9, pING1 and pARN4. Homologous open reading frames (ORFs) are shown in identical colors and the ORF sizes are given. Positions of the recombination motifs are indicated by yellow boxes on the linear genomes. The region of the operon present in the deletion derivative pING2 is mapped below pING1. (B) Promoter regions for the regulatory site of the putative CopG homolog on pKEF9 and pARN4 are aligned. The start codon of the first gene in the operon is underlined in red. Inverted repeats are marked by arrows. Direct repeats are underlined.