The secondary structure of proteins depends primarily on which property of amino

Question

The secondary structure of proteins depends primarily on which property of amino acids?
Select one: a. disulfide bonds b. polar side chains c. amide bonds d. hydrogen bonds The secondary structure of proteins depends primarily on which property of amino acids?
Select one: a. disulfide bonds b. polar side chains c. amide bonds d. hydrogen bonds The secondary structure of proteins depends primarily on which property of amino acids?
Select one: a. disulfide bonds b. polar side chains c. amide bonds d. hydrogen bonds

Explanation / Answer

Correct option: d. hydrogen bonds

There are two main types of secondary structure known as the -helix and the ß-sheet. Hydrogen bonds form between the oxygen of the C=O of each peptide bond in the strand and the hydrogen of the N-H group of the peptide bond four amino acids below it in the -helix. Whereas in ß-sheet, carbonyl oxygens in one strand hydrogen bond with the amino hydrogens of the adjacent strand. In both cases hydrogen bonds make this structure especially stable.

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