Types of Amino Acids

Question 1

Aliphatic (7)

Answer 1

• Nonpolar
• Few H-bond acceptors
• Glycine, Alanine, Proline, Valine, Leucine, Isoleucine, Methione

Question 2

Aromatic (3)

Answer 2

• Absorb UV Light

- Phenylalanine, Tryptophan, Tyrosine

Question 3

Negatively Charged (2)

Answer 3

• Hydrophilic
• Coordinate Metals
• Low pKa
• Aspartic Acid, Glutamic Acid

Question 4

Positively Charged (3)

Answer 4

• pKas important

- Lysine, Arginine, Histidine

Question 5

Uncharged Polar (5)

Answer 5

• H-bond aceptors in side-chains

- Serine, Threonine, Cysteine, Asparagine, Glutamine