Post on 21-Dec-2015
1. Primary Structure: Polypeptide chain
Polypeptide chain
Amino acid monomers
Peptide linkages
Figure 3.6 The Four Levels of Protein Structure
2. Secondary Structure:a. Helix
1. Primary Structure: Polypeptide chain
Hydrogen bond
Figure 3.6 The Four Levels of Protein Structure
2. Secondary Structure:a. Helix
1. Primary Structure: Polypeptide chain
b. Pleated sheet
Hydrogen bond
Figure 3.6 The Four Levels of Protein Structure
3. Tertiary Structure: Polypeptides fold
2. Secondary Structure:a. Helix
1. Primary Structure: Polypeptide chain
b. Pleated sheet
Disulfide bond
Pleated sheet
Helix
Figure 3.6 The Four Levels of Protein Structure
4. Quaternary Structure: Polypeptides assemble into larger molecules3. Tertiary Structure: Polypeptides fold
2. Secondary Structure:a. Helix
1. Primary Structure: Polypeptide chain
b. Pleated sheet
Figure 3.6 The Four Levels of Protein Structure