alpha-D-galactosyltransferase activity in calf thymus. A high-resolution 1H-NMR study.

Abstract:

:In calf thymus an alpha-D-galactosyltransferase activity has been detected that transfers galactosyl residues from UDP-galactose to suitable acceptors having galactose at the non-reducing terminus. For example, incubation of UDP-[14C]galactose and Gal beta(1 leads to 4) GlcNAc (N-acetyllactosamine) in the presence of a calf thymus cell-free suspension containing this galactosyltransferase activity resulted in the enzymic synthesis of a 14C-labelled trisaccharide. 500-MHz 1H-NMR spectroscopic analysis revealed the structure of the trisaccharide to be: Gal alpha (1 leads to 3) Gal beta (1 leads to 4) GlcNAc. This study illustrates the suitability of the 1H-NMR method for the analysis of enzymic conversions of carbohydrate chains.

authors

Van Halbeek H,Vliegenthart JF,Winterwerp H,Blanken WM,Van den Eijnden DH

doi

10.1016/0006-291x(83)91269-x

subject

Has Abstract

pub_date

1983-01-14 00:00:00

pages

124-31

issue

1

eissn

0006-291X

issn

1090-2104

pii

0006-291X(83)91269-X

journal_volume

110

pub_type

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