○ N-acety-gu 25.2 Oligosaccharides ● Mannose● Glucose are added to proteins in Dolich the er and golgi Glycosyl transferase ENDOPLASMIC RETICULUM Figure 25.3 An oligosaccharide is formed on dolichol and Ho- CHo-CANt Asparagine in target c=o: t transferred by glycosyl transferase to asparagine of a target protein = 消当 GlycoproteinFigure 25.3 An oligosaccharide is formed on dolichol and transferred by glycosyl transferase to asparagine of a target protein. 25.2 Oligosaccharides are added to proteins in the ER and Golgi