| D007106 |
Immune Sera |
Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen. |
Antisera,Immune Serums,Sera, Immune,Serums, Immune |
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| D007740 |
L Forms |
Bacterial variants, unable to form a complete cell wall, which are formed in cultures by various bacteria; granules (L bodies) appear, unite, and grow into amorphous bodies which multiply and give rise to bacterial cells morphologically indistinguishable from the parent strain. |
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| D011232 |
Chemical Precipitation |
The formation of a solid in a solution as a result of a chemical reaction or the aggregation of soluble substances into complexes large enough to fall out of solution. |
Precipitation, Chemical |
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| D011233 |
Precipitin Tests |
Serologic tests in which a positive reaction manifested by visible CHEMICAL PRECIPITATION occurs when a soluble ANTIGEN reacts with its precipitins, i.e., ANTIBODIES that can form a precipitate. |
Precipitin Test,Test, Precipitin,Tests, Precipitin |
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| D002473 |
Cell Wall |
The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents. |
Cell Walls,Wall, Cell,Walls, Cell |
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| D003956 |
Dialysis |
A process of selective diffusion through a membrane. It is usually used to separate low-molecular-weight solutes which diffuse through the membrane from the colloidal and high-molecular-weight solutes which do not. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
Dialyses |
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| D005779 |
Immunodiffusion |
Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction. |
Gel Diffusion Tests,Diffusion Test, Gel,Diffusion Tests, Gel,Gel Diffusion Test,Immunodiffusions,Test, Gel Diffusion,Tests, Gel Diffusion |
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| D000941 |
Antigens |
Substances that are recognized by the immune system and induce an immune reaction. |
Antigen |
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| D013297 |
Streptococcus pyogenes |
A species of gram-positive, coccoid bacteria isolated from skin lesions, blood, inflammatory exudates, and the upper respiratory tract of humans. It is a group A hemolytic Streptococcus that can cause SCARLET FEVER and RHEUMATIC FEVER. |
Flesh-Eating Bacteria,Streptococcus Group A,Bacteria, Flesh-Eating |
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| D014461 |
Ultracentrifugation |
Centrifugation with a centrifuge that develops centrifugal fields of more than 100,000 times gravity. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
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