What energy source is used to maintain the Ran-GTP gradient across the nuclear envelope? A)energy released by ATP hydrolysis B)a proton gradient C)a H⁺ ion gradient D)energy released by GTP hydrolysis E)an electron gradient

Question

Quizplus · Accepted Answer

Ran-GTP is generated in the nucleus by the RanGEF protein and hydrolyzed into Ran-GDP by the RanGAP protein in the cytoplasm. Therefore, the energy source used to maintain the Ran-GTP gradient across the nuclear envelope is the energy released by GTP hydrolysis.

What Energy Source Is Used to Maintain the Ran-GTP Gradient