In the β-sheet structure of proteins, the hydrogen bond on the peptide bond nitrogen of one of the peptides will most likely form a hydrogen bond with which of the following?
A) hydrophilic side chains in the adjacent sheet segment
B) hydrophobic side chains in the adjacent sheet segment
C) peptide bond carbonyl in the adjacent sheet segment
D) peptide bond carbonyl within 3 amino acids of the same segment
E) water in the surrounding medium

Question

Quizplus · Accepted Answer

In β-sheet structures, the hydrogen bonds form between the peptide bond nitrogen of one peptide and the peptide bond carbonyl of another peptide in the adjacent sheet segment.  The formation of both α-helices and β-sheets is the result of the hydrogen bonds formed between the hydrogen associated with the amide nitrogen of the peptide bond and the carbonyl oxygen of an adjacent peptide bond

In the β-Sheet Structure of Proteins, the Hydrogen Bond on the Peptide