1. Proteins pp 39 - 44

2. Proteins Proteins are used for: Amino acids.

3. Amino Acids

4. Amino Acids in Aqueous Solutions What are the acid / base properties of the amino acid functional groups?

5. Amino Acids

6. Essential vs. Non-essential Amino Acids non-essential amino acids essential amino acids

7. Peptides amide bond

8. Protein Organization Four layers of protein organization: 1. primary (1°) structure 2. secondary (2°) structure 3. tertiary (3°) structure 4. quaternary (4°) structure

9. Primary (1 ° ) Structure

10. Secondary (2 ° ) Structure

11. Tertiary (3 ° ) Structure This provides the final 3-D protein structure. Four major bond types between R groups: 1. H-bonding 2. ionic bonding 3. hydrophobic interactions 4. covalent bond (disulfide bridge)

12. Secondary (2 ° ) and Tertiary (3 ° ) Structure

13. Tertiary (3 ° ) Structure

14. Quaternary (4 ° ) Structure

15. General Protein Shapes globular fibrous

16. Protein Properties Denature. Vs. Renaturation.

17. Protein Folding

19. Protein Organization Protein Organization Video