The directionality of nuclear protein import is determined by
A) an unequal distribution of Ran/GTP.
B) importin.
C) an ion gradient.
D) the nuclear lamina.

Question

Quizplus · Accepted Answer

The directionality of nuclear protein import is primarily determined by an unequal distribution of Ran/GTP across the nuclear envelope, which provides the energy and direction for transport into the nucleus.

The Directionality of Nuclear Protein Import Is Determined by