Which of the following plays a role in the degradation of proteins?
A)RNAi
B)ubiquitin
C)proteasome
D)b and c

Question

Quizplus · Accepted Answer

Ubiquitin is a small protein that is used to mark other proteins for degradation. The ubiquitinated protein is then recognized and degraded by the proteasome, which is a large protein complex found in cells. Thus, both ubiquitin and proteasome play a role in the degradation of proteins. RNAi, on the other hand, is a mechanism by which RNA molecules silence the expression of specific genes but does not play a role in protein degradation.

Which of the Following Plays a Role in the Degradation