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Related to precipitin: precipitin test


An antibody that reacts with a specific soluble antigen to produce a precipitate.


(Biochemistry) immunol an antibody that causes precipitation when mixed with its specific antigen


(prɪˈsɪp ɪ tɪn)

an antibody that reacts with an antigen to form a precipitate.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.precipitin - an antibody that causes precipitation when it unites with its antigen
antibody - any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
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References in periodicals archive ?
Of the 44 patients, 37 (84%) received a diagnosis by using [greater than or equal to] 1 of the following serologic tests for Coccidioides exposure: complement fixation, immunodiffusion, or tube precipitin.
Precipitin tests on smears of gut contents of possible predators showed that Coleoptera larvae, Hemiptera and predacious adult Dipterans were important predators.
After eliminating the cross-reacting antibody using an immunoadsorbent, a strong precipitin line was observed between the egg protein and the antibody in the double immunodiffusion.
An immunologic precipitin system between soluble nucleoprotein and serum antibody in systemic lupus erythematosus.
Precipitin production in bursectomised chickens and chickens injected with 19-nortestosterone on the fifth day of incubation.
The authors performed precipitin tests on blood from the guts of wild-caught subject mosquitoes, and demonstrated that they fed extensively on cows, horses, and other domestic mammals.
Quantitative precipitin assay (QPA) [8, 9, 10, 11] is based on the interaction of antibody and antigen to form a large protein complex that will result in precipitation.
Toxin testing: The WHO Streptococcus and Diphtheria Reference Unit (SDRU) modified the Elek Test, which employs antitoxin-impregnated disks that create precipitin lines (a positive reaction) when toxin-producing C diphtheriae is present on an agar plate after 24 hours of incubation.
This is the first epitope of Sm B to be bound by autoantibody and defines the initiation of autoimmunity in all anti-SM precipitin positive patients with the appropriate samples tested to date.
Spider researchers have for a long time been much more likely to use indirect methods to detect prey proteins in the gut, such as precipitin test.