Which of the following is NOT a function of the signal recognition particle (SRP)?
A)halts translation
B)binds to the ribosome
C)binds to a channel in the rough endoplasmic reticulum
D)targets certain proteins to be synthesized on the rough endoplasmic reticulum

Question

Quizplus · Accepted Answer

The signal recognition particle (SRP) does not directly bind to a channel in the rough endoplasmic reticulum (ER). Instead, it plays a crucial role in targeting and halting translation of certain proteins destined for the ER, and it binds to the ribosome-nascent chain complex. The SRP then interacts with the SRP receptor located in the ER membrane, which helps in guiding the ribosome to the ER. The actual channel through which proteins are translocated into the ER is the Sec61 translocon, not directly bound by the SRP.

Which of the Following Is NOT a Function of the Signal