Dendrogram analysis of B. burgdorferi 297, B31, and N40 proteins with OspE/F-like leader peptides. Dendrogram analysis of the B. burgdorferi 297, B31, and N40 lipoproteins identified by BLAST searches using the B. burgdorferi 297 OspE/F homologs and Elp proteins. The dendrogram was generated by using the PILEUP program from the University of Wisconsin GCG sequence analysis software package, version 8.1. The B. burgdorferi B31 ErpI and ErpJ lipoproteins and the strain ZS7 pG lipoprotein were not included in the analysis because they are equivalent to ErpA, ErpB2, and ErpG, respectively (8, 39).