Glycosylation of exogenous protein by endoplasmic-reticulum membranes from castor-bean (Ricinus communis) endosperm

Abstract
Endoplasmic-reticulum membranes isolated from the endosperm tissue of 3-day-old castor-bean (R. communis) seedlings catalyzed the enzymic transfer of the sugar moiety from an oligosaccharide-lipid to a chemically unfolded form of ribonuclease A.