منابع مشابه
NMR Analysis of Its Monoacetone Derivative
A simple H NMR method for quantifying absolute H-enrichments in all seven aliphatic positions of glucose following its derivatization to monoacetone glucose is presented. The method is based on the addition of a small quantity of Henriched formate to the NMR sample. When the method was applied to [2-H]monoacetone glucose samples prepared from [2-H]glucose standards of known enrichments in the r...
متن کاملThe Estimation of Galactose in Plasma Using Galactose Oxidase.
The estimation of galactose in plasma by the enzyme system galactose oxidaseperoxidase was investigated. The method was found to be relatively specific for galactose although xylose and ascorbic acid reacted to a slight degree with the enzyme; lactose also reacted with the enzyme, probably because partial hydrolysis of the disaccharide released galactose. The relationship between absorbance and...
متن کاملGalactose oxidase action on galactose containing glycolipids--a fluorescence method.
Features that alter the glycolipid sugar headgroup accessibility at the membrane interface have been studied in bilayer lipid model vesicles using a fluorescence technique with the enzyme galactose oxidase. The effects on oxidation caused by variation in the hydrophobic moiety of galactosylceramide or the membrane environment for galactosylceramide, monogalactosyldiacylglycerol and digalactosyl...
متن کاملDisorders of galactose metabolism.
Galactose metabolism occupies a central position in modern biology through its relationship to cell surface antigenicity and its metabolic function as a component of glycolipids and glycoproteins. Disturbances in three fundamental reaction sequences of this hexose have led to a delineation of pathways of the chemistry resulting in the understanding of its metabolic fate. These inherited disorde...
متن کاملCongenital glucose galactose malabsorption.
Introduction Congenital glucose galactose malabsorption (CGGM) is a rare autosomal recessive disorder, which presents as a protracted diarrhoea in early neonatal life. It is due to a defect in sodium coupled transport of glucose and galac tose in the enterocyte (1). Diarrhoea in CGGM is osmotic, caused by accumulation of unabsorbed glucose and ga lactose in the intestine (2), which results in...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1925
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)84938-9