Fig. 2From: Vaccination with the variable tick protein of the relapsing fever spirochete Borrelia hermsii protects mice from infection by tick-biteImmunoblot analysis of serum from mice immunized with only the adjuvant (a) or purified recombinant Vtp 6 with adjuvant (b). Antigen was purified Vtp 6 and serum samples were tested at 1:200 dilutions. Five mice were examined in each group (M1 – M5). Molecular mass standards on left in kDa. Arrow indicates the primary Vtp protein, slightly larger than the native protein because of the 6-histidine tag; larger aggregates of the protein are aboveBack to article page