CHEM437: The Common 20 Amino Acids

Leucine

Leu, L, Nonpolar (Hydrophobic)

Proline

Pro, P, Nonpolar (Hydrophobic)

Alanine

Ala, A, Nonpolar (Hydrophobic)

Valine

Val, V, Nonpolar (Hydrophobic)

Methionine

Met, M, Nonpolar (Hydrophobic) (Amphipathic)

Tryptophan

Trp, W, Nonpolar (Hydrophobic) (Amphipathic)

Phenylalanine

Phe, F, Nonpolar (Hydrophobic)

Isoleucine

Ile, I, Nonpolar (Hydrophobic)

Glycine

Gly, G, Polar Uncharged (Hydrophilic)

Serine

Ser, S, Polar Uncharged (Hydrophilic) (R-Group pKa = ~13)

Asparagine

Asn, N, Polar Uncharged (Hydrophilic)

Glutamine

Gln, Q, Polar Uncharged (Hydrophilic)

Threonine

Thr, T, Polar Uncharged (Hydrophilic) (R-Group pKa = ~13)

Cysteine

Cys, C, Polar Uncharged (Hydrophilic) (R-Group pKa = 8.3)

Tyrosine

Tyr, Y, Polar Uncharged (Hydrophilic) (Amphipathic) (R-Group pKa = 10.1)

Aspartic Acid

Asp, D, Acidic (Hydrophilic) (R-group pKa = 3.9)

Glutamic Acid

Glu, E, Acidic (Hydrophilic) (R-Group pKa = 4.3)

Lysine

Lys, K, Basic (Hydrophilic) (Amphipathic) (R-Group pKa = 10.5)

Arginine

Arg, R, Basic (Hydrophilic) (R-Group pKa = 12.5)

Histidine

His, H, Basic (Hydrophilic) (R-Group pKa = 6.0)