LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

At which level of protein structure are interactions between the side chains (R groups) most important?

A	Primary
B	Secondary
C	Tertiary
D	Quaternary

Explanation:

Detailed explanation-1: -The tertiary structure is primarily due to interactions between the R groups of the amino acids that make up the protein.

Detailed explanation-2: -One type of interaction that plays a major role in the correct folding of a protein is the hydrophobic interaction. As a polypeptide folds into its correct shape, amino acids with nonpolar side chains usually cluster at the core of the protein, staying away from water.

Detailed explanation-3: -Tertiary (3D) structure is a shape resulting from folding of secondary structures determined by interactions between side chains of amino acids.

Detailed explanation-4: -Four interactions stabilize the tertiary structure of a protein: (a) ionic bonding, (b) hydrogen bonding, (c) disulfide linkages, and (d) dispersion forces.

There is 1 question to complete.