Agarose medium turbidimetric assay for cross reacting antigens
Appropriate concentrations of carrageenan and antibody to carrageenan were mixed in a medium consisting of 0.1% agarose in 0.01 M phosphate-buffered saline pH 7.4 at 37°C. The kinetics of precipitation were followed by turbidimetric analysis with a double beam Unicam spectrophotometer set at 420 nm....
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| Veröffentlicht in: | Journal of immunological methods 1977-01, Vol.17 (1), p.73-79 |
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| container_end_page | 79 |
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| container_issue | 1 |
| container_start_page | 73 |
| container_title | Journal of immunological methods |
| container_volume | 17 |
| creator | Dininno, Vincent Mccandless, E.L. |
| description | Appropriate concentrations of carrageenan and antibody to carrageenan were mixed in a medium consisting of 0.1% agarose in 0.01 M phosphate-buffered saline pH 7.4 at 37°C. The kinetics of precipitation were followed by turbidimetric analysis with a double beam Unicam spectrophotometer set at 420 nm. Addition of agarose enhanced the antigen—antibody reaction as judged by turbidity and served as a stabilizing medium permitting extended periods of continuous monitoring. The initial rate of precipitation was found to vary linearly with the concentration of antigen in the antibody excess zone. Both the critical rate of precipitation and final optical density were characteristic of the specific antigen—antibody reaction. These two parameters are used to quantitate the extent of a cross-section and to calculate an index of homology for the cross-reacting antigen to the homologous antigen. |
| doi_str_mv | 10.1016/0022-1759(77)90078-3 |
| format | Article |
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The kinetics of precipitation were followed by turbidimetric analysis with a double beam Unicam spectrophotometer set at 420 nm. Addition of agarose enhanced the antigen—antibody reaction as judged by turbidity and served as a stabilizing medium permitting extended periods of continuous monitoring. The initial rate of precipitation was found to vary linearly with the concentration of antigen in the antibody excess zone. Both the critical rate of precipitation and final optical density were characteristic of the specific antigen—antibody reaction. 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The kinetics of precipitation were followed by turbidimetric analysis with a double beam Unicam spectrophotometer set at 420 nm. Addition of agarose enhanced the antigen—antibody reaction as judged by turbidity and served as a stabilizing medium permitting extended periods of continuous monitoring. The initial rate of precipitation was found to vary linearly with the concentration of antigen in the antibody excess zone. Both the critical rate of precipitation and final optical density were characteristic of the specific antigen—antibody reaction. These two parameters are used to quantitate the extent of a cross-section and to calculate an index of homology for the cross-reacting antigen to the homologous antigen.</description><subject>Animals</subject><subject>Antigen-Antibody Reactions</subject><subject>Antigens</subject><subject>Carrageenan - pharmacology</subject><subject>Cross Reactions</subject><subject>Dose-Response Relationship, Immunologic</subject><subject>Goats</subject><subject>Immunoassay - methods</subject><subject>Nephelometry and Turbidimetry</subject><subject>Polysaccharides</subject><subject>Sepharose</subject><issn>0022-1759</issn><issn>1872-7905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1977</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kD1rwzAQhkXpV5r2H2TwVNrB7UmyJHsJhNAvCHRpZyHL56AS26lkF_LvY8chY6cb7nlf7h5CZhSeKFD5DMBYTJXIHpR6zABUGvMzMqGpYrHKQJyTyQm5Jjch_AAABQlX5DIDLmk6IfPF2vgmYFRh4boqajufu8JV2HpnIxOC2UVl4yPbQyHyaGzr6nVk6tatsQ635KI0m4B3xzkl368vX8v3ePX59rFcrGLLhWxjpcqkLDnLhWCZkFyhTRWnXBnkwAqrDIdCCgNJXtostYkUEpgoMsl5khrGp-R-7N365rfD0OrKBYubjamx6YJOE5CKMt6DyQgeDvZY6q13lfE7TUEP1vSgRA9KtFL6YE0Psdmxv8t7E6fQqKlfz8c19j_-OfQ6WIe17Z15tK0uGvd__x6ANHqB</recordid><startdate>19770101</startdate><enddate>19770101</enddate><creator>Dininno, Vincent</creator><creator>Mccandless, E.L.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19770101</creationdate><title>Agarose medium turbidimetric assay for cross reacting antigens</title><author>Dininno, Vincent ; Mccandless, E.L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-77f4ff32b55295637ec873137ae302dc7a30d65a04bfc98c4656025d963348a23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1977</creationdate><topic>Animals</topic><topic>Antigen-Antibody Reactions</topic><topic>Antigens</topic><topic>Carrageenan - pharmacology</topic><topic>Cross Reactions</topic><topic>Dose-Response Relationship, Immunologic</topic><topic>Goats</topic><topic>Immunoassay - methods</topic><topic>Nephelometry and Turbidimetry</topic><topic>Polysaccharides</topic><topic>Sepharose</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dininno, Vincent</creatorcontrib><creatorcontrib>Mccandless, E.L.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of immunological methods</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dininno, Vincent</au><au>Mccandless, E.L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Agarose medium turbidimetric assay for cross reacting antigens</atitle><jtitle>Journal of immunological methods</jtitle><addtitle>J Immunol Methods</addtitle><date>1977-01-01</date><risdate>1977</risdate><volume>17</volume><issue>1</issue><spage>73</spage><epage>79</epage><pages>73-79</pages><issn>0022-1759</issn><eissn>1872-7905</eissn><abstract>Appropriate concentrations of carrageenan and antibody to carrageenan were mixed in a medium consisting of 0.1% agarose in 0.01 M phosphate-buffered saline pH 7.4 at 37°C. The kinetics of precipitation were followed by turbidimetric analysis with a double beam Unicam spectrophotometer set at 420 nm. Addition of agarose enhanced the antigen—antibody reaction as judged by turbidity and served as a stabilizing medium permitting extended periods of continuous monitoring. The initial rate of precipitation was found to vary linearly with the concentration of antigen in the antibody excess zone. Both the critical rate of precipitation and final optical density were characteristic of the specific antigen—antibody reaction. These two parameters are used to quantitate the extent of a cross-section and to calculate an index of homology for the cross-reacting antigen to the homologous antigen.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>903618</pmid><doi>10.1016/0022-1759(77)90078-3</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-1759 |
| ispartof | Journal of immunological methods, 1977-01, Vol.17 (1), p.73-79 |
| issn | 0022-1759 1872-7905 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Animals Antigen-Antibody Reactions Antigens Carrageenan - pharmacology Cross Reactions Dose-Response Relationship, Immunologic Goats Immunoassay - methods Nephelometry and Turbidimetry Polysaccharides Sepharose |
| title | Agarose medium turbidimetric assay for cross reacting antigens |
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