MOST proteins containing a signal sequence located at their amino terminal ends are sorted to:
A)the cytosol.
B)the nucleus.
C)a mitochondrion or the rough endoplasmic reticulum.

Question

Quizplus · Accepted Answer

Proteins containing a signal sequence located at their amino terminal ends are sorted to either a mitochondrion or the rough endoplasmic reticulum, both of which have mechanisms for protein import and sorting. Proteins sorted to the cytosol do not typically have signal peptides. Proteins sorted to the nucleus typically have a nuclear localization signal, which is a different type of sorting signal.

MOST Proteins Containing a Signal Sequence Located at Their Amino