precipitin


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Related to precipitin: precipitin test

precipitin

 [pre-sip´ĭ-tin]
an antibody to antigen that specifically aggregates the antigen in vivo or in vitro to give a visible precipitate.
precipitin reaction a reaction involving the specific serologic precipitation of an antigen in solution with its specific antiserum in the presence of electrolytes. The reaction is used in the typing of pneumococcus strains, in testing whether blood is human or animal, and for diagnostic purposes.
precipitin test any test in which the positive reaction consists of the formation and deposit of a precipitate in the fluid being tested. See also precipitin reaction.

pre·cip·i·tin

(prē-sip'i-tin),
An antibody that under suitable conditions combines with and causes its specific and soluble antigen to precipitate from solution.
Synonym(s): precipitating antibody

precipitin

/pre·cip·i·tin/ (-sip´it-in) an antibody to soluble antigen that specifically aggregates the macromolecular antigen in vivo or in vitro to give a visible precipitate.

precipitin

(prĭ-sĭp′ĭ-tĭn)
n.
An antibody that reacts with a specific soluble antigen to produce a precipitate.

precipitin

[prəsip′itin]
Etymology: L, praecipitare + Gk, anti, against; AS, bodig, body; Gk, genein, to produce
an antibody that causes the formation of an insoluble complex when combined with a specific soluble antigen. Compare agglutinin. See also agglutination, antiglobulin.

pre·cip·i·tin

(prĕ-sip'i-tin)
An antibody that under suitable conditions combines with and causes its specific and soluble antigen to precipitate from solution.

precipitin

see ANTIBODY.

Precipitin

An antibody in blood that combines with an antigen to form a solid that separates from the rest of the blood.
Mentioned in: Allergic Bronchopulmonary Aspergillosis

precipitin

an antibody to soluble antigen that specifically aggregates the antigen in vivo or in vitro to give a visible precipitate.
precipitin curve
a plot showing the amount of antibody precipitated with increasing amounts of antigen added in a precipitin reaction.
precipitin reaction, precipitin test
a reaction involving the specific precipitation of an antigen in solution by mixing with a specific antiserum in the presence of electrolytes. See also lattice theory.
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References in periodicals archive ?
Use of precipitin test in a study of interrelationship between Eurygaster integriceps Put (Hemiptera: Scuteleridae) and predatory arthropods.
Using the serological technique to identify Ascia monuste orseis (Latreille, 1819) (Lepidoptera: Pieridae)/Utilizacao da serologia na identificacao de Ascia monuste orseis (Latreille, 1819) (Lepidoptera: Pieridae)
Transmission electron microscopy of the circumoval immune precipitin reaction on eggs.
The rise and fall of Bilharzia in Puerto Rico: its centennial 1904-2004
Complement fixation, 37 (84) immunodiffusion, or tube precipitin Complement fixation only 10 (23) Immunodiffusion only 10 (23) Tube precipitin only 2 (5) Immunohistochemistry or culture 3 (7) only IgG/IgM enzyme immunoassay only 4 (9) * Of the 44 patients, 43 were interviewed and 41 completed the interview.
Coccidioidomycosis among workers constructing solar power farms, California, USA, 2011-2014
After incubation, the external diameter of each precipitin ring was measured.
Effect of qualitative and quantitative feed restriction on growth performance and immune function in broiler chickens
A positive antibody-antigen reaction was identified as precipitin lines formed between the serum and the protein preparations.
Development of a Saxidomus purpuratus (mollusca: bivalvia) egg-specific antibody for the quantification of eggs using an enzyme-linked immunosorbent assay
Key words: bird-breeder's lung, bird breeding, cockatiels, hypersensitivity pneumonitis, inspiratory squawk, lung, precipitin antibodies, respiratory sounds.
Cockatiel-induced hypersensitivity pneumonitis. (Grand Rounds in Environmental Medicine)
Serum precipitin analysis was strongly positive for precipitating antibodies to Mycobacterium sp.
Respiratory illness in workers exposed to metalworking fluid contaminated with nontuberculous mycobacteria - Ohio, 2001
These methods may be 1,000 times more sensitive than counterimmunoelectrophoresis (CIE) and immunodiffusion (ID) tests that require precipitin reactions between antibodies and tissue/cell extracts.
Human autoimmune diseases: Progress in clinical laboratory tests
Such algorithms may include monitoring the initial rate of the precipitin reaction as well as a separate prereaction step.
Sharply increased serum free light-chain concentrations after treatment for multiple myeloma
After incubation, plates were removed and placed over a source of illumination to clearly see precipitin rings.
Effects of Achyranthes bidentata polysaccharide on growth performance, immunological, adrenal, and somatotropic responses of weaned pigs challenged with Escherichia coli lipopolysaccharide
Although the presence of precipitating antibodies can provide justification for environmental evaluation of exposure to specific antigens (10), the results of precipitin testing must be interpreted with knowledge of potential occupational and/or environmental exposures experienced by the patient.
Bioaerosol lung damage: trout's response. (Correspondence)
The laboratory criteria consist of culture, histopathologic, or molecular evidence; or immunologic evidence in the form of detection of immunoglobulin M or immunoglobulin G by immunodiffusion, enzyme immunoassay, latex agglutination, tube precipitin, or complement fixation.
Enhanced surveillance of coccidioidomycosis, Arizona, USA, 2007-2008

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