FIG. 1.

Schematic representations of the DNA regions comprising the genes ribC, ribD, and ribE in B. henselae and other Bartonella species. The upper line represents the DNA region of B. henselae Houston-1 cloned into plasmid pBH-RIBC1. The binding sites of the oligonucleotide primers used for the differentiation of Bartonella species by PCR are marked by the arrowheads. The bars indicate the sequenced DNA regions amplified with primers PBH3 and PBH4 from B. quintana, B. bacilliformis, and B. clarridgeiae. Sequences of primer oligonucleotides are given in Table 2.