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Explain the quaternary structure of proteins.
Quaternary Structure refers to the structure of a protein macro molecule formed by interactions between multiple polypeptide chains.
Each polypeptide chain is referred to as a subunit. with quaternary structure may consist of more than one of the same type of protein subunit.
They may also be composed of different subunits. Hemoglobin is an example of a protein with quaternary structure. Hemoglobin, found in the blood, is an iron containing protein that binds oxygen molecules. It contains four subunits: two alpha subunits and two beta subunits.
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