BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Among the most known globular proteins is hemoglobin, a member of the globin protein family. Other globular proteins are the alpha, beta and gamma (IgA, IgD, IgE, IgG and IgM) globulin. See protein electrophoresis for more information on the different globulins.

Detailed explanation-2: -Hemoglobin is an example of a globular protein. It consists of four polypeptide chains, each folded onto itself. Each chain is attached to a heme group–a ring-like structure with an iron atom at the center. It is at these iron atoms that oxygen molecules bind to hemoglobin.

Detailed explanation-3: -Globular proteins are categorized into four structural classes: all-, all-, +, and / (Levitt and Chothia, 1976).

Detailed explanation-4: -At the smallest level of organization, the DNA wraps itself around small globular proteins called histones. Complexes of histones and DNA form nucleosomes, which appear as “beads” on the DNA strand.