the role of the endoplasmic reticulum ( er ) in protein glycosylation was indicated by ( a ) localizing the enzymes catalysing the incorporation of n-acetylglucosamine and mannose into mono- and oligosaccharide lipid and into glycoprotein , ( b ) localizing particulate ( 3 ) h-labelled glycoprotein amongst cellular fractions prepared from endosperm tissue which had been incubated with [ ( 3 ) h ] n-acetylglucosamine .
C0014239
endoplasmic reticulum
C0007634
cellular