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Glycoprotein sialyl- and galactosyl transferase activities in erythrocyte membranes in alcoholic patients and healthy controls. 1986

H Stibler, and S Borg

In investigating possible mechanisms underlying carbohydrate deficiencies in serum transferrin and erythrocyte membranes in alcoholics, a total of 27 alcoholic patients and 27 healthy controls were examined for the activities of sialytransferase in serum and erythrocyte membranes and galactosyltransferase in erythrocyte membranes. The enzymes were assayed with endogenous and different exogenous glycoprotein acceptors and with [14C] CMP-sialic acid and [14C] UDP-galactose as substrates. No decrease in enzyme activities were found in alcoholic patients compared to controls, indicating that chronic ethanol abuse does not exert any direct inhibitory effect on these glycosyltransferases in isolated erythrocyte membranes or on sialytransferase in serum. Further studies of the effect of ethanol on the metabolism of complex carbohydrates are clearly necessary.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D004910 Erythrocyte Membrane The semi-permeable outer structure of a red blood cell. It is known as a red cell 'ghost' after HEMOLYSIS. Erythrocyte Ghost,Red Cell Cytoskeleton,Red Cell Ghost,Erythrocyte Cytoskeleton,Cytoskeleton, Erythrocyte,Cytoskeleton, Red Cell,Erythrocyte Cytoskeletons,Erythrocyte Ghosts,Erythrocyte Membranes,Ghost, Erythrocyte,Ghost, Red Cell,Membrane, Erythrocyte,Red Cell Cytoskeletons,Red Cell Ghosts
D005700 Galactosyltransferases Enzymes that catalyze the transfer of galactose from a nucleoside diphosphate galactose to an acceptor molecule which is frequently another carbohydrate. EC 2.4.1.-. Galactosyltransferase
D006022 beta-N-Acetylglucosaminylglycopeptide beta-1,4-Galactosyltransferase An enzyme that catalyzes the transfer of galactose from UDP-galactose to a specific glycoprotein receptor, 2-acetamido-2-deoxy-D-glucosyl-glycopeptide, during glycopeptide synthesis. EC 2.4.1.38. Thyroid Galactosyltransferase,Glycoprotein beta-Galactosyltransferase,beta-N-Acetylglucosaminide beta 1-4 Galactosyltransferase,Galactosyltransferase, Thyroid,Glycoprotein beta Galactosyltransferase,beta N Acetylglucosaminide beta 1 4 Galactosyltransferase,beta N Acetylglucosaminylglycopeptide beta 1,4 Galactosyltransferase,beta-1,4-Galactosyltransferase, beta-N-Acetylglucosaminylglycopeptide,beta-Galactosyltransferase, Glycoprotein
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000094802 beta-D-Galactoside alpha 2-6-Sialyltransferase Sialyltransferases that catalyze the transfer of N-ACETYLNEURAMINIC ACID from CYTIDINE MONOPHOSPHATE N-ACETYLNEURAMINIC ACID to the 6-OH of the GALACTOSE residue of N-GLYCANS. CMP-Acetylneuraminate Galactoside (alpha 2-6)-Sialyltransferase,CMP-N-Acetylneuraminate-Galactosylglycoprotein Sialyltransferase ST6GAL,CMP-N-Acetylneuraminate-beta-Galactoside alpha-2,6-Sialyltransferase,CMP-N-Acetylneuraminic Acid-Lactose Sialytransferase,CMP-NeuAc-Galactoside (alpha 2-6)-Sialyltransferase,CMP-Sialic Acid-N-Acetyllactosaminide alpha (2-6)-Sialyltransferase,Gal-1-4-GlcNAc alpha(2-6)-Sialyltransferase,alpha 2-6-Sialyltransferase,alpha2,6(N) Sialyltransferase,alpha6-Sialyltransferase,beta-D-Galactoside alpha-2-6-Sialyltransferase,beta-Galactoside alpha2,6-Sialyltransferase,beta-Galactosyl(1-4)N-Acetylglucosaminide alpha(2-6)-Sialyltransferase,Gal-GlcNAc(2-6)-sialyltransferase,SIAT-1,ST6(N),ST6Gal I,ST6Gal-1,2-6-Sialyltransferase, alpha,2-6-Sialyltransferase, beta-D-Galactoside alpha,Acid-Lactose Sialytransferase, CMP-N-Acetylneuraminic,CMP N Acetylneuraminate Galactosylglycoprotein Sialyltransferase ST6GAL,CMP N Acetylneuraminate beta Galactoside alpha 2,6 Sialyltransferase,CMP N Acetylneuraminic Acid Lactose Sialytransferase,SIAT 1,ST6GAL, CMP-N-Acetylneuraminate-Galactosylglycoprotein Sialyltransferase,ST6Gal 1,Sialyltransferase ST6GAL, CMP-N-Acetylneuraminate-Galactosylglycoprotein,Sialytransferase, CMP-N-Acetylneuraminic Acid-Lactose,alpha 2 6 Sialyltransferase,alpha 2-6-Sialyltransferase, beta-D-Galactoside,alpha-2,6-Sialyltransferase, CMP-N-Acetylneuraminate-beta-Galactoside,alpha-2-6-Sialyltransferase, beta-D-Galactoside,alpha2,6-Sialyltransferase, beta-Galactoside,alpha6 Sialyltransferase,beta D Galactoside alpha 2 6 Sialyltransferase,beta Galactoside alpha2,6 Sialyltransferase
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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