Which of the following about Rb tumor suppressor protein is correct?

Question

TuteeHUB · Accepted Answer

It is activated when phosphorylated by Cdk

TuteeHUB · Answer

It binds E2F transcription factor and prevents cell from entering S phase until a mitogenic signal is received

TuteeHUB · Answer

It is a transcription factor

TuteeHUB · Answer

When a mitogenic signal is received, it binds the transcription factor E2F and thus stimulates the cell to enter S phase

1.	Which of the following about Rb tumor suppressor protein is correct?
A.	It binds E2F transcription factor and prevents cell from entering S phase until a mitogenic signal is received
B.	It is activated when phosphorylated by Cdk
C.	It is a transcription factor
D.	When a mitogenic signal is received, it binds the transcription factor E2F and thus stimulates the cell to enter S phase
Answer» B. It is activated when phosphorylated by Cdk

Discussion