BL/CH401 Lecture 9

Protein Structure at Levels 3 and 4

Tertiary and Quaternary Structure


Introduction: Protein Structure Bonding at the 3-D Level

Part I. Tertiary Structure - The 3rd Level of Protein Structure

A. Hydrogen Bonds in Tertiary Structure

B. Ionic Bonds in Tertiary Structure

C. Hydrophobic Interactions in Tertiary Structure

D. Disulfide Bond - A weak covalent bond of tertiary structure.

Part II. Quaternary Structure -- The 4th Level of Protein Structure

A. Bonding in Quaternary Structure

B. Examples of Quaternary Structure in Proteins

C. Examples of More Complex Quaternary Structures in Proteins

D. Collagen -- A Special Protein Structure


©Wilbur H. Campbell, 1995; wcampbel@mtu.edu

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