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  • Title: A radioassay of enzymes catalyzing the glucosylation and sulfation steps of glucosinolate biosynthesis in Brassica species.
    Author: Jain JC, Reed DW, GrootWassink JW, Underhill EW.
    Journal: Anal Biochem; 1989 Apr; 178(1):137-40. PubMed ID: 2524977.
    Abstract:
    A new method for assaying the enzymes uridine diphosphoglucose (UDPglucose):thiohydroximate glucosyltransferase and 3'-phosphoadenosine-5'-phosphosulfate:desulfoglucosinolate sulfotransferase has been designed. The assay system is based on the separation of nonionic [14C]desulfobenzylglucosinolate from anionic [14C]UDPglucose and anionic [14C]benzylglucosinolate, respectively, by differential adsorption to DEAE-ion-exchange disks. The procedure eliminates elaborate chromatographic techniques. The method was used to measure both enzymes in several Brassica spp. In addition, sulfotransferase activity was monitored during partial purification from seedlings of Brassica napus (cv Westar).
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