Post-Translational Translocation of Some Secretory Proteins in Yeast is Powered

Question

Post-translational translocation of some secretory proteins in yeast is powered by:
A)ATP hydrolysis by BiP.
B)cAMP hydrolysis by cAMP phosphodiesterase.
C)GTP hydrolysis EF-Tu.
D)phospholipid hydrolysis by phospholipase C.

Accepted Answer

Post-translational translocation of some secretory proteins in yeast is powered by ATP hydrolysis by BiP (binding immunoglobulin protein, also known as Hsp70). BiP acts as an ATP-dependent chaperone that interacts with the translocation channel and facilitates the translocation of secretory proteins across the endoplasmic reticulum (ER) membrane.