Generation of monoclonal antibodies to native active human glycosyltransferases

Malene Bech Vester-Christensen, Eric Paul Bennett, Henrik Clausen, Ulla Mandel

9 Citationer (Scopus)

Abstract

Complex carbohydrates serve a wide range of biological functions in cells and tissues. Their biosynthesis involves more than 200 distinct glycosyltransferases in human cells, and the expression, properties, and topology of these enzymes regulate the glycosylation patterns of proteins and lipids. Glycosyltransferases are ER-Golgi resident enzymes with slow turnover, which makes monitoring of protein expression a method more directly linked to enzyme function, than monitoring gene expression. In situ monitoring of expression and subcellular topology of glycosyltransferase proteins by immunological techniques using monoclonal antibodies therefore provides an excellent strategy to analyze the glycosylation process in cells. A major drawback has been difficulties in generating antibodies to glycosyltransferases and validating their specificities. Here we describe a simple strategy for generating and characterizing monoclonal antibodies to human glycosyltransferases. This strategy includes a process for recombinant production and purification of enzymes for immunization, a simple selection strategy for isolation of antibodies with optimal properties for in situ detection of enzyme expression, and a comprehensive strategy for characterizing the fine specificity of such antibodies.
OriginalsprogEngelsk
TitelGlycosyltransferases : Methods and Protocols
RedaktørerInka Brockhausen
Antal sider18
ForlagHumana Press
Publikationsdato2013
Sider403-420
Kapitel30
ISBN (Trykt)978-1-62703-464-7
ISBN (Elektronisk)978-1-62703-465-4
DOI
StatusUdgivet - 2013
NavnMethods in Molecular Biology
Vol/bind1022
ISSN1064-3745

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