MemotivaAP Biology Unit 1 Topic 1.4 and 1.5: Proteins, Amino Acids, Peptide Bonds, and Four Levels of Protein Structure

What is the quaternary structure of a protein?

AP Biology Unit 1 Topic 1.4 and 1.5: Proteins, Amino Acids, Peptide Bonds, and Four Levels of Protein Structure

Audio flashcard · 0:15

Nortren·

What is the quaternary structure of a protein?

0:15

The quaternary structure exists only in proteins made of two or more polypeptide chains, called subunits. It refers to how these subunits assemble into a larger functional unit. Hemoglobin is a classic example, with four subunits that work together to carry oxygen in red blood cells.
openstax.org