Which of the following types of post-translational modifications involves the addition of a carbohydrate molecule to a protein?

A Phosphorylation
B Glycosylation ✓
C Acetylation
D Methylation

Explanation

Glycosylation is a type of post-translational modification that involves the addition of a carbohydrate molecule (glycan) to a protein, which can affect its structure and function.

Mnemonic

Glyco = 'glue' → sticking carbs to proteins

Source

Nelson et al. (2017) - Lehninger Principles of Biochemistry
Protein Metabolism Biochemistry Post-Translational Modifications Medium MEDICAL Confidence: high