How Is the Orientation of Membrane Proteins in the Membrane

Multiple Choice

How is the orientation of membrane proteins in the membrane thought to be accomplished?

A) After synthesis, an enzyme orients the protein properly.
B) During synthesis, the translocon inner lining orients the nascent polypeptide so the more positive end faces the cytosol.
C) During synthesis, the translocon inner lining orients the nascent polypeptide so the more negative end faces the cytosol.
D) During synthesis, the translocon inner lining orients the nascent polypeptide so the more positive end faces the mitochondrial intermembrane space.
E) After synthesis, the translocon inner lining orients the nascent polypeptide so the more positive end faces the cytosol.