How Is the Orientation of Membrane Proteins in the Membrane

question 4

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.

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