Which of the following correctly shows the electrostatic interaction between amino acids that holds an $\alpha$-helix or $\beta$-pleated sheet together?
A)a
B)b
C)c
D)d

Question

Which of the following correctly shows the electrostatic interaction between amino acids that holds an $\alpha$-helix or $\beta$-pleated sheet together? 
A)a 
B)b 
C)c 
D)d

Quizplus · Accepted Answer

The correct electrostatic interaction between amino acids that holds an F1F1F1S1F1F1F10-helix or F1F1F1S1F1F1F10-pleated sheet together is depicted in option B, which shows a hydrogen bond between the oxygen of a carbonyl group and the hydrogen of an amine group in neighboring amino acids. This is a common interaction in both secondary structures that stabilizes the protein conformation. Options A, C, D, and E show incorrect or non-existent interactions.

Which of the Following Correctly Shows the Electrostatic Interaction Between α\alphaα

Which of the Following Correctly Shows the Electrostatic Interaction Between $\alpha$