A globular protein consisting of more than one polypeptide chains belongs to:
Correct answer: D. Quaternary structure
- A. Primary structure
- B. Secondary structure
- C. Tertiary structure
- D. Quaternary structure
Explanation
In many complex proteins, polypeptide tertiary chains are aggregated and held together by hydrophobic interactions, hydrogen and ionic bonds. This specific arrangement is the quaternary structure. Quaternary structure refers to when 2 or more polypeptide chains are joined together in a protein.
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