Proline (P) pro
nonpolar, aliphatic R group
Glycine (G) gly
nonpolar, aliphatic R group
Alanine (A) ala
nonpolar, aliphatic R group
Valine (V) val
nonpolar, aliphatic R group
Leucine (L) leu
nonpolar, aliphatic R group
Methionine (M) met
nonpolar, aliphatic R group
Isoleucine (I) ile
nonpolar, aliphatic R group
Serine (S) ser
polar, uncharged R group
Threonine (T) thr
polar, uncharged R group
Cysteine (C) cys
polar, uncharged R group
Asparagine (N) asn
polar, uncharged R group
Glutamine (Q) gln
polar, uncharged R group
Tyrosine (Y) tyr
polar, uncharged R group
Lysine (K) lys
positively charged R group
Arginine (R) arg
positively charged R group
Histidine (H) his
positively charged R group
Aspartate (D) asp
negatively charged R group
Glutamate (E) glu
negatively charged R group
Phenylalanine (F) phe
nonpolar, aromatic R group
Tryptophan (W) trp
nonpolar, aromatic R group
Tyrosine (Y) tyr
nonpolar, aromatic R group