Which of the following types of protein degradation is characterized by the use of ubiquitin as a molecular tag to mark proteins for degradation?

A Autophagy
B Proteasomal degradation ✓
C Lysosomal degradation
D Exosomal degradation

Explanation

Proteasomal degradation is a type of protein degradation that uses ubiquitin as a molecular tag to mark proteins for degradation, which are then recognized and degraded by the proteasome.

Source

Cell biology textbooks
Protein Metabolism Cell Biology Protein Degradation Pathways Hard MEDICAL Confidence: high