| abstract |
To provide a reagent for assaying anti- Treponema pallidum antibody which reagent contains a polypeptide antigen and which reagent provides high assay sensitivity and high specificity, and to provide an assay method employing the assay reagent. n The reagent for assaying anti- Treponema pallidum antibody, for use in an assay of anti- Treponema pallidum antibody on the basis of antigen-antibody reaction is characterized in that the reagent contains, as an antigen, a recombinant polypeptide containing at least domain C and domain D of Treponema pallidum 47 kDa antigen but containing no domain A1 of the 47 kDa antigen. |