Exhibit 4B

-Refer to Exhibit 4B. Which one shows hydrogen bonding of the peptide backbone?
A) M
B) N
C) P
D) M and N
E) All of these

Question

Exhibit 4B
 
-Refer to Exhibit 4B. Which one shows hydrogen bonding of the peptide backbone?
A) M 
B) N 
C) P 
D) M and N 
E) All of these

Quizplus · Accepted Answer

Both M and N show hydrogen bonding of the peptide backbone. In M, there are hydrogen bonds between the carbonyl oxygen of residue i and the amide hydrogen of residue i+4. In N, there are hydrogen bonds between the carbonyl oxygen of residue i and the amide hydrogen of residue i+1. P does not show any hydrogen bonding of the peptide backbone.

Exhibit 4B -Refer to Exhibit 4B. Which One Shows Hydrogen Bonding of Shows