Which of the following statements is false? Lipid-anchored proteins are biological “switching devices.” The attachment of lipid anchors to membrane proteins is commonly reversible. Reversible lipid anchoring is part of a signal transduction pathways in eukaryotic cells. Glycosyl phosphatidylinositol anchors are commonly composed of hetero oligosaccharides. Glycosyl phosphatidylinositol anchors are commonly attached via a head group to the N-terminal amino acid of a protein.
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Which of the following statements is false? a. Lipid-anchored proteins are biological "switching devices." b. The attachment of lipid anchors to membrane proteins is commonly reversible. c. Reversible lipid anchoring is part of a signal transduction pathways in eukaryotic cells. d. Amide-linked myristoylation attaches a saturated fatty acid to a protein. e. Amide-linked myristoylation occurs most commonly at a C-terminal glycine residue.
Josee P.
61. What statement about "peripheral" membrane proteins is INCORRECT? A) They are membrane proteins that interact with the polar head groups of the membrane lipids. B) They are membrane proteins that bind to the surfaces of integral proteins. C) They are membrane proteins that are anchored to the membrane by a covalently attached lipid molecule. D) Polar interactions of peripheral protein and polar head groups of the membrane lipids can be disrupted by adding salts or by changing the pH. E) They are membrane proteins that traverse the lipid bilayer.
Lainey R.
Which of the following features of a membrane protein is (are) NEVER used as a membrane anchor? A) Phenyl and palmitoyl group additions B) C-terminal glycosylphosphatidylinositol (GPI) C) Oligosaccharide side chains D) An N-terminal myristoyl group
Adi S.
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