Binding of SPE B truncations and immunoglobulins.

<p>Either purified human IgG (A) or the IgM-IgA mixture (B) was coated in a 96-well ELISA plate, and binding of different SPE B truncations with IgG or the IgM-IgA mixture was detected by ELISA, as described in Materials and Methods. *<i>P</i><0.05, **<i>P</i><0.01 compared with values determined for the rSPE B_146–280 or the rSPE B_281–358 group.