FIG. 2.

Comparison of the putative N. meningitidis LbpB protein sequence with sequences of TbpB proteins from related organisms. The putative amino acid sequence of N. meningitidis B16B6 LbpB was compared to the known amino acid sequences of other known TbpBs, namely, N. meningitidis B16B6 and M982 (29), N. gonorrhoeae FA19 (2), A. pleuropneumoniae H49 (19) and S-tp1 (18), P. haemolytica H196 (35), and H. influenzae DL63 (20). The basic alignment was performed by using the program DNAsis. ∗, homology with at least three other TbpBs; Δ, absolute homology with all selected TbpBs. Shaded boxes indicate negatively charged regions of LbpB not present in TbpBs; unshaded box indicates proposed site of P-loop motif.