Chapter 6, Problem 26CQ

(a)

Summary Introduction

To explain: The types of rotational symmetry that are possible for a protein with four identical subunits.

Concept introduction: The helical group of identical subunits that has a geometric repetition is called the symmetry. The arrangement of protein sequences are analyzed by its symmetry. This plays a significant role for studying the tertiary and quaternary structure of proteins. This helps to understand the function, folding, stability, and evolution of the proteins.

(b)

Summary Introduction

To explain: The type of rotational symmetry that are possible for a protein with six identical subunits.

Concept introduction: The helical group of identical subunits that has a geometric repetition is called the symmetry. The arrangement of protein sequences are analyzed by its symmetry. This plays a significant role for studying the tertiary and quaternary structure of proteins. This helps to understand the function, folding, stability, and evolution of the proteins.