amino acids

Tryptophan

Trp/W (nonpolar)

Histidine

His/H (basic/+ charged)

Proline

Pro/P (nonpolar)

Tyrosine

Tyr/Y (polar)

Phenylalanine

Phe/F (nonpolar)

Arginine

Arg/R (basic/+ side group)

Lysine

Lys/K (basic/+ charged)

Glutamine

Gln/Q (polar)

Asparagine

Asn/N (polar)

Glutamate

Glu/E (acidic/- charged) aka glutamic acid

Aspartate

Asp/D (acidic/- charged) aka aspartic acid

Methionine

Met/M (nonpolar)

Cysteine

Cys/C (polar)

Threonine

Thr/T (polar)

Serine

Ser/S (polar)

Isoleucine

Ile/I (nonpolar)

Alanine

Ala/A (nonpolar)

Leucine

Leu/L (nonpolar)

Valine

Val/V (nonpolar)

Glycine

Gly/G (nonpolar)