What is the role of globin protein in hemoglobin?

Hemoglobin:

• The protein used for carrying the oxygen molecules to the different parts of the body through blood circulation is known as hemoglobin.
• It is a part of the red blood cell.
• The protein contains a heme group having iron atoms and polypeptide chains of globin.

Role of Globin Protein:

• The globin polypeptide chains contain the binding sites for the heme group. The polypeptide chains keep the heme group in the structure of hemoglobin.