In the cell cycle,controlled degradation of regulatory proteins occurs via the
A)P₄₅₀ - protease pathway.
B)cyclin proteolysis pathway.
C)ubiquitin-proteosome pathway.
D)kinase inhibition pathway.
E)none of the above

Question

Quizplus · Accepted Answer

The ubiquitin-proteosome pathway is responsible for the targeted degradation of regulatory proteins during the cell cycle, including cyclins. This pathway involves the attachment of ubiquitin molecules to the target protein, marking it for proteasomal degradation. The P₄₅₀-protease and kinase inhibition pathways are not involved in this process.

In the Cell Cycle,controlled Degradation of Regulatory Proteins Occurs Via