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  • Title: [Immunochemical characteristics of the subunits of cholera enterotoxin and of thermolabile Escherichia coli enterotoxins of various origins].
    Author: Voronov SE, Vertiev IuV, Shaginian IA, Ezepchuk IuV.
    Journal: Biull Eksp Biol Med; 1987 Oct; 104(10):472-5. PubMed ID: 2445393.
    Abstract:
    Antigenic determinants of subunits A and B of cholera enterotoxin (CT), heat-labile enterotoxin from the human E. coli strain (hLT) and heat-labile enterotoxin from the porcine E. coli strain (pLT) were analysed by Ouchterlony double gel-diffusion test against antisera to B subunits of three toxins and antisera to three holotoxins. The results have shown the existence of the following antigenic determinants: in subunits B-1. antigenic determinants, common for B subunits of all three enterotoxins-B(chp); 2. group antigenic determinants, common for B subunits of two toxins in the pair-B(ch), B(hp); 3. antigenic determinants, unique for B subunits of each CT, hLT, pLT-(B(c), B(h), B(p); in subunits A.-1. antigenic determinants, common for A subunits of all three enterotoxins-A.(chp); 2. group antigenic determinants, common for A subunits of two enterotoxins (hLT and pLT/-A(hp); 3. antigenic determinants, unique for A subunit of CT-A(c). On the basis of these results antigenic formulas for subunits of CT, hLT, pLT were proposed.
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