Specific binding assays utilizing analyte-cytolysin conjugates

Chemistry: analytical and immunological testing – Biospecific ligand binding assay

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435 4, 435 5, 435 7, 435 21, 435 36, 436512, 436520, 436541, 436803, 436813, 436815, 436817, 436827, 436828, 436829, G01N 3354, G01N 3350, G01N 3374

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045173036

ABSTRACT:
A novel analyte-cytolysin conjugate and its use in a lipid vesicle mediated measurement process is described for a wide variety of analytes present at very low concentration. The method involves forming a reaction system consisting of analyte, analyte specific binding agent, analyte-cytolysin conjugate, and vesicles containing detectable marker material in such proportions that uncombined conjugate alters the permeability of the vesicles resulting in the release and quantitative detection of marker material which can be correlated with the amount of analyte initially present.

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Thelestam and Mollby, Plant and Animal Cytolysins, Biochem. Biophys. Acta, vol. 557, 156-169 (1979).
Sessa et al., Interaction of a Lytic Polypeptide, Meliltin, with Lipid Membrane Systems, J. Biol. Chem., vol. 244, 3575 (1969).

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