The domain structure of protein Z, which is composed of 180 amino acids, is shown in the upper part of the figure below. Protein Z is palmitoylated at a cysteine residue (the third amino acid) through the mechanism shown in the box.
Which of the following diagrams shows the correct topology of protein Z in the plasma membrane?
I think the second diagram is correct because cytoplasmic side has reducing environment and so SH will not be allowed to react this way. Am I right ?