In a Ramachandran diagram,a larger area represents sterically allowed torsion angles of $\phi$ and $\varPsi$ that are allowed in _____ rather than in ______ because there is greater opportunity for separation of amino acid side chains.
A)secondary structure…tertiary structure
B)α helix…β sheet
C)β sheet…α helix
D)tertiary structure…secondary structure
E)none of the above

Question

Quizplus · Accepted Answer

In a Ramachandran diagram, a larger area denotes allowed torsion angles. The areas of allowed angles for F1F1F1S1F1F1F10 and F1F1F1S1F1F1F10 are larger in β-sheets compared to α-helices because there is more separation between side chains in β-sheets. Therefore, option C is correct.

In a Ramachandran Diagram,a Larger Area Represents Sterically Allowed Torsion ϕ\phiϕ

In a Ramachandran Diagram,a Larger Area Represents Sterically Allowed Torsion $\phi$