The cytotoxic moiety(ies) in highly purified streptococcal M protein has been shown to be distinct from the type-specific M determinant. This nontype-specific M-associated determinant(s) (NTSM) causes humoral and cellular immunotoxic responses in man. NTSM is common to M protein prepared from all streptococcal serotypes studied so far. In this study, immunoabsorbents prepared by entrapping purified M proteins in polyacrylamide gel were employed to identify, separate, and purify antibodies directed against NTSM as well as against the type-specific M (TSM) determinants.
Edwin H. Beachey, Gene H. Stollerman
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