What can you infer about high- molecular- weight proteins that cannot be transported into the nucleus?
A) They are foreign proteins.
B) They have been tagged for destruction.
C) They lack nuclear localization signals NLS).
D) They are defective proteins.

Question

Quizplus · Accepted Answer

High-molecular-weight proteins that cannot be transported into the nucleus lack nuclear localization signals (NLS). NLS is a sequence of amino acids that directs the protein to the nucleus. Therefore, their inability to enter the nucleus is most likely due to the lack of this signal.

What Can You Infer About High- Molecular- Weight Proteins That