試題詳解

21. Which one of the following statements is incorrect?
(A) Rafts are enriched in sphingolipids and cholesterols.
(B) A region with more than 20 residues of high hydropathy index is presumed to be a transmembrane segment.
(C) The positively charged Lys, His, and Arg residues of membrane proteins occur more commonly on the cytoplasmic face of membranes.
(D) Glycosyl phosphatidylinositol (GPI)-linked proteins are always on the inner face of the plasma membrane.
(E) Lamin A uses the farnesyl group to anchor at the nuclear inner membrane. Unable to cleave pre-Lamin A/C from the nuclear inner membrane may cause premature aging.