Description
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Streptococci can be generally classified as alpha, beta, or gamma based on their hemolytic reactions indicated by appearance of zones around colonies growing on Blood Agar. Beta-hemolytic streptococci are further characterized by Lancefield groups.Most Streptococci possess group-specific antigens which are usually carbohydrate structural components of the cell wall. Lancefield showed that these antigens can be extracted in soluble form and identified by precipitation reactions with homologous antisera^1. Polystyrene latex particles coated with group-specific antibodies agglutinate strongly in the presence of homologous antigen and remain in smooth suspension in the absence of homologous antigen.
• Ready to use: Latex suspension is supplied as a ready to use reagent
• Economical solution: Maximize spending efficiency with the option of purchasing separate kit components
• Color-coded reagent: Grey cap Streptex Latex Group F reagent contains latex specific for Group F, sufficient for up to 50 tests, supplied in single plastic dropper bottles. The polystyrene latex particles coated with purified rabbit antibody to the group F antigen, are suspended at a concentration of 0.5% in phosphate buffer (pH 7.4) containing 0.1% sodium azide as preservative.Not all products are available for sale in all territories. Please inquire.Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.
