Further Studies of the Orientation of Reactive Sites in Thin Films of Streptococcal Antigens

[摘要] Films of the streptococcal derivatives NPA and P6, when allowed sufficient opportunity for expansion, exhibit significant differences in reactivity of the two film-faces toward homologous and heterologous antisera. When expansion is incomplete the facial differences are largely obliterated.Variations in the ratios (AB/A), over a wide range of substrate-pH, indicate the presence of at least two types of reactive site which behave independently. Qualitatively, P6 and NPA films exhibit the same properties; therefore nucleic acid appears to contribute nothing to the serological reactivity of the materials which actually enter into the film-structure.

[学科分类] 生物科学（综合）