منابع مشابه
Extracellular Polysaccharide Mutants
Two extracellular polysaccharide mutants of Streptococcus mutans GS-5 were obtained and examined. The mutants were distinguished by colonial morphology and by growth on and adherence to hard surfaces. A technique was devised which allowed these bacteria to be studied as they appeared when grown on a hard surface in liquid medium which contained sucrose. Negative stains, replicas, and scanning e...
متن کاملSoluble extracellular antigen-specific T cell immunoproteins.
Some T cells release proteins that bind specifically to antigens that have not been processed by antigen-presenting cells. These soluble immunoproteins induce or effect antigen-specific T cell functions in immunoregulation and/or hypersensitivity. After certain immunization regimens, T cell immunoproteins specific for the immunogen rise in serum, and therefore may be an antigen-specific, humora...
متن کاملCAPSULATION OF PNEUMOCOCCUS WITH SOLUBLE C-LIKE (Cs) POLYSACCHARIDE
Capsulated mutants of pneumococcus producing a capsule of soluble polysaccharide related immunologically to the C or cell wall polysaccharide of pneumococcus have been isolated from several noncapsulated variants of this organism. The capsular material of these strains reacts with antisera both to homologous strains and to noncapsulated strains of pneumococcus and with human C-reactive protein....
متن کاملImmune response to Cryptococcus neoformans soluble polysaccharide: immunological unresponsiveness.
Mice injected with 100 to 800 microgram of Cryptococcus neoformans soluble polysaccharide showed a reduced ability to produce antibody after a challenge immunization with polysaccharide emulsified in Freund incomplete adjuvant. These animals were considered immunologically unresponsive. Animals given an initial injection of 25 or 50 microgram of polysaccharide responded to a challenge immunizat...
متن کاملCapsulation of Pneumococcus with Soluble Cell Wall-like Polysaccharide
Methods are described for the separation of the C or cell wall polysaccharide from the C(s) or soluble C-like capsular polysaccharide of C(s) pneumococcal strains. Immunologic analysis has shown that both the C and C(s) polysaccharides of a variety of pneumococcal strains are heterogeneous and that the dissimilarities appear to reside in the mucopeptide portion of the molecule or in the region ...
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ژورنال
عنوان ژورنال: JOURNAL OF THE BREWING SOCIETY OF JAPAN
سال: 2001
ISSN: 0914-7314,2186-4012
DOI: 10.6013/jbrewsocjapan1988.96.669