A Protein Is Highly Unlikely to Have Both $\phi$ And $\Psi$ Angles Equal to Zero Degrees Due To:
A) Steric Hindrance

question 60

Multiple Choice

A protein is highly unlikely to have both $\phi$ and $\Psi$ angles equal to zero degrees due to:

• A) steric hindrance between the side chain and the peptide backbone.
• B) polarity differences between adjacent side chains.
• C) hydrophobic interactions between adjacent side chains.
• D) steric hindrance between adjacent side chains.
• E) too few van der Waals contacts for proper folding.

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