Biochemistry Which of the following aminoacids in a protein commonly acts as a potential 0-Glycosylation site for attachment of an oligosaccharide unit: A Glutamine B Cysteine C Serine D Asparginine 💡 Explanation Which of the following aminoacids in a protein commonly acts as a potential 0-Glycosylation site for attachment of an oligosaccharide unit: ✓ Correct Answer: C. Serine