The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 1997
Filed:
Jul. 25, 1994
Dennis Wright, Tallahassee, FL (US);
Other;
Abstract
A non-radioactive method of detecting the enzymes beta galactosidase or beta glucosidase directly or for the detection of a ligand and antiligand complex is provided wherein beta galactosidase or the complex labelled with beta galactosidase or a tracer having beta galactosidase conjugated thereto is reacted with 5-bromo-4-chloro-3-indolyl-B-D-galactoside and a tetrazolium salt to produce a colored formazan or a color change indicative of the presence of beta galactosidase, or wherein beta glucosidase or the complex labelled with the beta glucosidase or a tracer having beta glucosidase conjugated thereto is reacted with 5-bromo-4-chloro-3-indolyl-B-D-glucoside and a tetrazolium salt to produce a colored formazan or a color change indicative of the presence of beta glucosidase. Optionally, the galactosidase-galactoside determination or the glucosidase-glucoside determination may further include catalyst phenazine methosulfate (PMS) as a reactant. The preferred tetrazolium salt is dimethylthiazol diphenyl tetrazolium (MTT). A solution or composition of 5-bromo-4-chloro-3-indolyl-B-D-galactoside or 5-bromo-4-chloro-3-indolyl-B-D-glucoside, and a tetrazolium salt, as well as a test kit including the same, is also provided for carrying out the chromogenic method of detection.