Protein secondary structures such as $\alpha$-helices and $\beta$-sheets are stabilized mainly by
A) ionic interactions.
B) disulfide bond formation.
C) van der Waals forces.
D) hydrogen bond formation.

Question

Quizplus · Accepted Answer

Protein secondary structures such as F1F1F1S1F1F1F10-helices and F1F1F1S1F1F1F10-sheets are stabilized mainly by hydrogen bond formation. Helices are stabilized by hydrogen bonds between the carbonyl oxygen of residue i and the amide hydrogen of residue i+4. Sheets are stabilized by hydrogen bonds between the carbonyl oxygen of one strand and the amide hydrogen of an adjacent strand.

Protein Secondary Structures Such As α\alphaα -Helices And β\betaβ -Sheets Are Stabilized Mainly by A) Ionic Interactions

Protein Secondary Structures Such As $\alpha$ -Helices And $\beta$ -Sheets Are Stabilized Mainly by
A) Ionic Interactions