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Double immunofluorescent staining of α2,6 sialyltransferase and β1,4 galactosyltransferase in monensin‐treated cells: Evidence for different Golgi compartments?

Double immunofluorescent staining of α2,6 sialyltransferase and β1,4 galactosyltransferase in... β1,4 galactosyl‐ and α2,6 sialyltransferase (gal‐T EC 2.4.1.22 and sialyl‐T EC 2.4.99.1) sequentially elongate and terminate complex N‐glycan chains of glycoproteins. Both enzymes reside in trans Golgi cisternae; their ultrastructural relationship, however, is unknown. To delineate their respective Golgi compartment(s) we conducted a double label immunofluorescent study by conventional and confocal laser scanning microscopy in HepG2, HeLa, and other cells in presence of Golgi‐disturbing agents. Polyclonal, peptide‐specific antibodies to human sialyl‐T expressed as a β‐galactosidase‐sialyl‐T fusion protein in E. coli were developed and applied together with mABs to human milk gal‐T. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cellular Biochemistry Wiley

Double immunofluorescent staining of α2,6 sialyltransferase and β1,4 galactosyltransferase in monensin‐treated cells: Evidence for different Golgi compartments?

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References (47)

Publisher
Wiley
Copyright
Copyright © 1993 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0730-2312
eISSN
1097-4644
DOI
10.1002/jcb.240520304
pmid
7690043
Publisher site
See Article on Publisher Site

Abstract

β1,4 galactosyl‐ and α2,6 sialyltransferase (gal‐T EC 2.4.1.22 and sialyl‐T EC 2.4.99.1) sequentially elongate and terminate complex N‐glycan chains of glycoproteins. Both enzymes reside in trans Golgi cisternae; their ultrastructural relationship, however, is unknown. To delineate their respective Golgi compartment(s) we conducted a double label immunofluorescent study by conventional and confocal laser scanning microscopy in HepG2, HeLa, and other cells in presence of Golgi‐disturbing agents. Polyclonal, peptide‐specific antibodies to human sialyl‐T expressed as a β‐galactosidase‐sialyl‐T fusion protein in E. coli were developed and applied together with mABs to human milk gal‐T.

Journal

Journal of Cellular BiochemistryWiley

Published: Jul 1, 1993

Keywords: ; ; ; ; ;

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