enzyme immunoassay;
sandwich assay;
biological microchip;
B subunit of cholera toxin;
cholera toxin;
monoclonal antibodies;
IMMUNOASSAY;
ENTEROTOXINS;
MICROCHIPS;
PROTEINS;
D O I:
10.1134/S1068162009030078
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Monoclonal antibodies to cholera toxin were obtained. They do not cross-react with the termolabile toxin (LT) of Escherichia coli, ricin, diphtherial toxin, staphylococcus enterotoxins of SEA, SEB, SEI, SEG, or the lethal factor and protective antigen of the anthrax toxin. Pairs of antibodies for the quantitative measurement of the cholera toxin in sandwich enzyme immunoassay (EIA) were selected. The detection limit of the toxin is 0.2 ng/ml for plate EIA and 0.44 ng/ml for microchip EIA. The presence of milk, broth, or surface water in the toxin samples does not reduce the sensitivity of EIA.
机构:
ARS, Mycotoxin Prevent & Appl Microbiol Res Unit, USDA, Peoria, IL 61604 USAARS, Mycotoxin Prevent & Appl Microbiol Res Unit, USDA, Peoria, IL 61604 USA
Maragos, Chris M.
Uchiyama, Yosuke
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机构:
Azabu Univ, Grad Sch Life & Environm Sci, Dept Food & Life Sci, Sagamihara, Kanagawa 2525201, JapanARS, Mycotoxin Prevent & Appl Microbiol Res Unit, USDA, Peoria, IL 61604 USA
Uchiyama, Yosuke
Kobayashi, Naoki
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机构:
Azabu Univ, Grad Sch Life & Environm Sci, Dept Food & Life Sci, Sagamihara, Kanagawa 2525201, JapanARS, Mycotoxin Prevent & Appl Microbiol Res Unit, USDA, Peoria, IL 61604 USA
Kobayashi, Naoki
Kominato, Fumichika
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机构:
Shinsei Chem Co Ltd, Ibaraki, Osaka 5670085, JapanARS, Mycotoxin Prevent & Appl Microbiol Res Unit, USDA, Peoria, IL 61604 USA
Kominato, Fumichika
Sugita-Konishi, Yoshiko
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机构:
Azabu Univ, Grad Sch Life & Environm Sci, Dept Food & Life Sci, Sagamihara, Kanagawa 2525201, JapanARS, Mycotoxin Prevent & Appl Microbiol Res Unit, USDA, Peoria, IL 61604 USA