Inhibition Of Thioglucosidase-Catalyzed Glucosinolate Hydrolysis By Castanospermine And Related Alkaloids

Am Scofield,Jt Rossiter, P Witham,Gc Kite,Rj Nash,Le Fellows

PHYTOCHEMISTRY（1990）

Cited 39|Views4

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Abstract

The ability of some naturally occurring polyhydroxyalkaloids to inhibit the hydrolysis of the glucosinolates, sinigrin (allylglucosinolate) and progoitrin [(2 R )-2-hydroxybut-3-enylglucosinolate], by thioglucosidases from mustard and the cabbage aphid, Brevicoryne brassicae , was assessed. Several compounds, in particular castanospermine, DMDP and alexine were effective. The inhibitory activity varied according to substrate, buffer composition and pH, and enzyme source.

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Key words

castanospermine,mustard,cruciferae,glucosinolate hydrolysis,homonojirimycin,thioglucosidase.,alexine,myrosinase,progoitrin,brassica nigra,cabbage aphid,sinigrin,catalysts,biochemistry,enzymes

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