| Molecular    weight in kD | 
        Antigen | 
        Meaning    for diagnosis | 
        Antibody    reactions | 
      
      
        | p100/p83  | 
        (p83 is degradation product of p100) | 
        +++ | 
        Typically positive in late stages, but early    antibody reaction possible | 
      
      
        | p58 | 
          | 
        + | 
        Often    in stage 3 | 
      
      
        | p43/p45 | 
          | 
        + | 
        Mostly    in stage 3 | 
      
      
        | p41  | 
        Flagellin  | 
        + | 
        Very early reactive, cross reactions with some    antigen preparations | 
      
      
        | p39 | 
        BmpA
          (Borrelial membrane protein A) | 
        +++ | 
        Rather specific for late IgG-response; sometimes    also early | 
      
      
        | p31 | 
        OspA    (Outer surface protein A) | 
        ++ | 
        Late    response | 
      
      
        | p30 | 
          | 
        + | 
        Not    clearly defined | 
      
      
        | p22/p25 | 
        OspC | 
        +++ | 
        Very early seen; mostly the first specific reaction    of the early IgM response; species specific, especially the IgG response | 
      
      
        | p21 | 
        OspC-Homolog | 
        ++ | 
        Early    stage | 
      
      
        | p19 | 
        OspE | 
        + | 
        Not    clearly defined | 
      
      
        | p18 | 
        Dbp (A) 
          Decorin binding protein A | 
        ++ | 
        Surface    protein, species specific response | 
      
      
        | p17 | 
        Osp17 | 
        + | 
        Not B. burgdorferi sensu strictu and B. garinii | 
      
      
        | p14 | 
        internal    protein | 
        + | 
        Mostly    in early infection | 
      
      
        | VlsE | 
        VlsE=vmp (variable major protein) like sequence    expressed, surface lipoprotein | 
          | 
        IgG in early and late infection, intra thecal IgM    response in neuroborreliosis |