Amino Acids

Amino Acids

1. Primary structure: A sequence of AA in a polypeptide chain. held by peptide bonds that are made during protein bio synthesis.

2. Secondary structure: Hydrogen bond donor/acceptor residues in a repeating peptide unit. causes amino acids to fold into a repeating pattern

3. Tertiary structure: A 3D folding pattern of a protein due to side chain reactions. shows an alpha helic inside a pleated sheet.

4. Quaternary structure: protein consisting of more than one amino acid chain. they are linked together via bonds that create a 3D shape.

5. 4 R groups: Non polar/ neutral- eg: Glycine. Polar/neutral- eg: Serine. Acidic/polar- eg: Proline. Basic/polar- eg: Histidine

6. General AA consists of an AA group, a side chain, carboxyl group, carbon and hydrogen