Anal Biochem. 1998 Jan 1;255(1):142-7.

A universal radiochemical high-performance liquid chromatographic assay for the determination of UDP-glucuronosyltransferase activity.

Ethell BT, Anderson GD, Beaumont K, Rance DJ, Burchell B.

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Department of Molecular and Cellular Pathology, Ninewells Hospital and Medical School, Dundee, Scotland.

Abstract

A new unified assay for the determination of UDP-glucuronosyltransferase (UGT) activities has been developed. The resolution of [14C]uridine diphosphate glucuronic acid from radiolabeled glucuronides formed by incorporation of this radiolabel can now be achieved by a sensitive and rapid-gradient HPLC method which utilizes a radioactivity endpoint as a universal detection method. One important application of this method is the determination of kinetic parameters for cloned and expressed UGT isoforms with greater speed and precision than can be afforded by TLC methodology. Moreover, assays with 14C-labeled substrates indicate that gradient HPLC can easily resolve the substrate from the glucuronide products and present an alternative to the time-consuming optimization of conditions for organic phase extraction assays.

PMID:: 9448853; [PubMed - indexed for MEDLINE]

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Cited by 2 PubMed Central articles

Farnesol is glucuronidated in human liver, kidney and intestine in vitro, and is a novel substrate for UGT2B7 and UGT1A1. [Biochem J. 2004]
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