FIG. 3.

Comparison of the 38-bp inverted repeats (A) and res sites (B). The sequences of the 38-bp inverted repeats and res sites in Tn2610 IRa (this study), Tn1721 (accession no. X61367), and Tn21 (accession no. AF071413) are aligned, with asterisks indicating identical bases. The res subsites (9) are boxed, and the AT site at which resolvase-mediated recombination takes place is boldfaced. The recombination crossover point to generate the hybrid res is indicated by a vertical arrow. tnpR and tnpM, regions adjacent to each end of the res sites.