Proteins pp 39 - 44. Proteins Proteins are used for: Amino acids.

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Presentation transcript:

Proteins pp

Proteins Proteins are used for: Amino acids.

Amino Acids

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

Amino Acids

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

Peptides amide bond

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

Primary (1 ° ) Structure

Secondary (2 ° ) Structure

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)

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

Tertiary (3 ° ) Structure

Quaternary (4 ° ) Structure

General Protein Shapes globular fibrous

Protein Properties Denature. Vs. Renaturation.

Protein Folding

Protein Organization Protein Organization Video