Chapter 9, Problem 20P

Interpretation Introduction

Interpretation:

The reason corresponding to the fact that the $\text{p}{K}_{\text{a}}$ values of ${\text{Asp}}^{85}$ and ${\text{Asp}}^{96}$ of bacteriorhodopsin are shifted to high value because of the hydrophobic environment is to be stated. The dissociation behavior of aspartate carboxyl groups to be in a hydrophobic environment is to be stated.

Concept introduction:

Amino acid is a compound that is composed of ${\text{NH}}_{\text{2}}$ (amino) group and $\text{COOH}$ (carboxylic acid) group. One of the main $\alpha -$ amino acid is aspartic acid that is used to synthesize the proteins. The $\text{p}{K}_{\text{a}}$ value of amino acids indicates the amount of acidity of an amino acid.