The precipitation of a multivalent antigen by a bivalent antibody, resulting in the formation of a large complex. The antibody and antigen must be soluble. Precipitation usually occurs when there is near equivalence between antibody and antigen concentrations.

Dictionary of molecular biology. 2004.

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  • Immunoprecipitation — (IP) is the technique of precipitating a protein antigen out of solution using an antibody that specifically binds to that particular protein. This process can be used to isolate and concentrate a particular protein from a sample containing many… …   Wikipedia

  • Immunoprécipitation — L immunoprécipitation (IP) est la technique qui permet la précipitation d un antigène (protéine) en solution par un anticorps qui agglutine spécifiquement une protéine particulière. On l utilise pour isoler et concentrer une protéine précise… …   Wikipédia en Français

  • immunoprecipitation — noun Date: 1962 precipitation of a complex of an antibody and its specific antigen • immunoprecipitate noun • immunoprecipitate transitive verb …   New Collegiate Dictionary

  • immunoprecipitation — (im u no pre sip i ta shun) A reaction involving soluble antigens reacting with antibodies to form a large aggregate that precipitates out of solution …   Dictionary of microbiology

  • immunoprecipitation — /im yeuh noh pri sip i tay sheuhn, i myooh /, n. the separation of an antigen from a solution by the formation of a large complex with its specific antibody. [1965 70; IMMUNO + PRECIPITATION] * * * …   Universalium

  • immunoprecipitation — noun A technique in which an antigen is precipitated from solution by using an antibody, or a particular use of this technique We carried out sequential immunoprecipitations of cell lysates. See Also: immunoprecipitate, precipitation,… …   Wiktionary

  • immunoprecipitation — The phenomenon of aggregation of sensitized antigen upon addition of specific antibody (precipitin) to antigen in solution. SYN: immune precipitation. * * * im·mu·no·pre·cip·i·ta·tion pri .sip ə tā shən n pr …   Medical dictionary

  • immunoprecipitation — n. material formed as a result of reciprocal activity of matching antibodies and antigens …   English contemporary dictionary

  • immunoprecipitation — im·mu·no·precipitation …   English syllables

  • immunoprecipitation — im•mu•no•pre•cip•i•ta•tion [[t]ˌɪm yə noʊ prɪˌsɪp ɪˈteɪ ʃən, ɪˌmyu [/t]] n. imu the separation of an antigen from a solution by the formation of a large complex with its specific antibody • Etymology: 1965–70 …   From formal English to slang

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