Which Is Not True About β-Sheets

question 98

Multiple Choice

Which is not true about β-sheets?

• A)The side-chains of all amino acids point to the same side of the sheet.
• B)The polypeptide chains in the sheet are nearly fully extended.
• C)The range of allowed phi and psi angles is broader than for those in the α-helix.
• D)In antiparallel sheets the hydrogen bonds between adjacent strands are nearly perpendicular to the backbones of the strands.

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