USE OF OXIDASE ENZYME SYSTEMS IN CHEMILUMINESCENT ASSAYS

An oxidase enzyme system to provide long lived entities capable of being recognized by a chemiluminescent reagent is disclosed. In the preferred embodiments, a specific binding pair ligand or analyte is coupled with xanthine oxidase, either directly or via a streptavidin bridge. Thereafter the prese...

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Bibliographic Details
Main Author BARET; ALAIN
Format Patent
LanguageEnglish
Published 28.04.1992
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS OR TEST PAPERS THEREFOR
CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES
ENZYMOLOGY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
PHYSICS
PROCESSES OF PREPARING SUCH COMPOSITIONS
SPIRITS
TESTING
VINEGAR
WINE
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Summary:An oxidase enzyme system to provide long lived entities capable of being recognized by a chemiluminescent reagent is disclosed. In the preferred embodiments, a specific binding pair ligand or analyte is coupled with xanthine oxidase, either directly or via a streptavidin bridge. Thereafter the presence of an analyte can be determined by a chemiluminescent emission upon addition of a signal reagent comprising an oxidase substrate, a chemiluminescent reagent, such as luminol, and an enhancer, i.e. iron EDTA complex with a buffer providing a pH ranging from about 9.5 to about 10.5 The resulting chemiluminescent signal is stable and detectable for many hours or days after initiation. The chemiluminescent oxidase system is particularly useful for immunoassays and nucleotide probe analysis.
Bibliography:Application Number: US19900536181