Identification of a UDP-Gal: GlcNAc-R galactosyltransferase activity in Escherichia coli VW187

The paper reports the synthesis of a GlcNAc α-pyrophosphate, covalently bound to a phenoxyundecyl moiety, and its use as an acceptor substrate in a novel assay for a galactosyltransferase from Escherichia coli.