An important step in the import of the transcription factor NF-$\kappa$B into the nucleus is regulated by a
A) nuclease.
B) protease.
C) phospholipase.
D) plasma membrane receptor that directly phosphorylates I$\kappa$B.

Question

Quizplus · Accepted Answer

The important step in the import of the transcription factor NF-F1F1F1S1F1F1F10B into the nucleus is likely to involve the cleavage of a signal peptide or a regulatory domain by a protease, which enables the protein to enter the nucleus. Nucleases are enzymes that break down nucleic acids and are not directly involved in protein import. Phospholipases are enzymes that cleave phospholipids and are not involved in protein import. While phosphorylation can play a role in regulating protein import, it is unlikely that a plasma membrane receptor would directly phosphorylate the transcription factor.

An Important Step in the Import of the Transcription Factor κ\kappaκ

An Important Step in the Import of the Transcription Factor $\kappa$