PII proteins are a family of signal-transducing proteins that regulate ________ during nitrogen metabolism.
A) transcription factors.
B) enzymes.
C) membrane transport proteins.
D) PII proteins regulate each of the above during nitrogen metabolism.

Question

Quizplus · Accepted Answer

PII proteins are involved in regulating various aspects of nitrogen metabolism. They act as signal transducers that sense the cellular nitrogen status and modulate the activity and/or expression of transcription factors, enzymes, and membrane transport proteins accordingly. Therefore, the best choice is D - PII proteins regulate each of the above during nitrogen metabolism.

PII Proteins Are a Family of Signal-Transducing Proteins That Regulate