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.

Date of Patent:
Mar. 26, 1996

Filed:

Aug. 22, 1994
Applicant:
Inventors:

James W Dennis, Etobicoike, CA;

Katherine A Siminovitch, Toronto, CA;

Alessandro Datti, Terni, IT;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q / ; C12Q / ; G01N / ; A01N / ;
U.S. Cl.
CPC ...
435 15 ; 435-4 ; 435 14 ; 435 97 ; 435810 ; 436 94 ; 436 92 ; 536 2911 ; 536-111 ; 514 54 ; 514 23 ; 514-1 ;
Abstract

A method of assaying for glycosyltransferase activity in a sample. In a first step, a sample is reacted with a first sugar donor and an acceptor substrate to produce a transferase product. The first sugar donor and acceptor substrate are selected such that the sugar from the first sugar donor is capable of being transferred to the acceptor substrate in the presence of the glycosyltransferase to be assayed. In a second step, the transferase product is reacted with a second sugar donor having a sugar which is labelled with a labelling agent and an enzyme which is capable of transferring the sugar from the second sugar donor to the transferase product to produce a labelled transferase product and which has a higher affinity for the glycosyltransferase product compared to the affinity of the glycosyltransferase for the acceptor substrate. The labelling agent activity of the labelled transferase product or unreacted second sugar donor is assayed to determine transferase activity in the sample. A kit for assaying for glycosyltransferase activity in a sample is also described.


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