Why Should the Core of Most Globular and Membrane Proteins

question 42

Multiple Choice

Why should the core of most globular and membrane proteins consist almost entirely of α-helix and β-sheets?

• A)Hydrogen bonded structures must be kept away from water solvent.
• B)Highly polar N-H and C=O moieties of the peptide backbone must be neutralized in the hydrophobic core of the protein.
• C)Hydrogen bonding occurs only in the core of proteins.
• D)Trapped water stabilizes the helix and sheet structures.

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