Nucleotide and deduced amino acid sequences of the E. chaffeensis Arkansas VLPT. The following features are indicated in boldface type: putative ribosome-binding site (RBS), translation initiation codon, and termination codon (asterisk). An aspartic acid codon (GAT) and the sequence 5′-GTTTTATAT, which are absent from sequences amplified from some strains of E. chaffeensis, and four individual nucleotide positions where substitutions (A or G) occur among different strains are also indicated in boldface type. PCR primers are underlined and labeled, and directions are indicated. The nucleotide sequence was numbered by designating the A of the putative translation initiation codon number 1.