Multiple Choice
Which statement best explains why correct protein folding is critical for protein function and cellular health?
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4. Protein Structure
Protein Folding
Multiple Choice
In general, which option contains the major cooperative interactions driving spontaneous protein folding?
A
Hydrophobic interactions in the protein core & formation of hydrogen bonds in secondary structures.
B
Formation of salt bridges & disulfide bonds between R-groups that stabilize key interactions.
C
Reduced chain conformational entropy.
D
Restricting surrounding solvent molecules to have less rotational/conformational possibilities.
Verified step by step guidance1
Understand the concept of protein folding: Protein folding is the process by which a protein structure assumes its functional shape or conformation. This process is driven by various interactions within the protein and with its environment.
Identify the major cooperative interactions: The primary forces driving spontaneous protein folding include hydrophobic interactions, hydrogen bonding, salt bridges, and disulfide bonds.
Hydrophobic interactions: These occur when non-polar amino acid side chains aggregate in the interior of the protein, away from the aqueous environment, stabilizing the protein structure.
Hydrogen bonds: These are formed between the backbone atoms in secondary structures like alpha-helices and beta-sheets, contributing to the stability of these structures.
Consider other factors: Reduced chain conformational entropy and solvent molecule restrictions also play roles, but the major driving forces are hydrophobic interactions and hydrogen bonding.
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