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pubmed:abstractText |
The nucleotide sequence of the operon encoding the major outer surface proteins, OspA and OspB, of a European isolate of Borrelia burgdorferi (strain B29) was determined and compared to the osp operon of the American strain, B31. An amino acid (aa) identity of 80.7% was found when comparing the OspA of B29 with that of B31, whereas the aa sequence of the OspB of B29 reveals only 61.3% identity with the OspB of B31. Thus, strains B31 and B29 can be regarded as representatives of different B. burgdorferi groups.
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