1 small {A,G,S,T}

small(X,Y)

2 polar {D,E,H,K,N,Q,R,S,T,W,Y}

polar(X,Y)

3 polar uncharged {N,Q}

polarUncharged(X,Y)

4 aromatic {F,H,W,Y}

aromatic(X,Y)

5 charged {D,E,H,I,K,L,R,V}

charged(X,Y)

6 positively charged {H,K,R}

positivelyCharged(X,Y)

7 negatively charged {D,E}

negativelyCharged(X,Y)

8 tiny {A,G}

tiny(X,Y)

9 bulky {F,H,R,W,Y}

bulky(X,Y)

10 aliphatic {I,L,V}

aliphatic(X,Y)

11 hydrophobic {I,L,M,V}

hydrophobic(X,Y)

12 hydrophilic basic {K,R,H}

hydrophilicBasic(X,Y)

13 hydrophilic acidic {E,D,N,Q}

hydrophilicAcidic(X,Y)

14 neutral weakly hydrophobic {A,G,P,S,T}

neutralWeakHydrophobic(X,Y)

15 hydrophobic aromatic {F,W,Y}

hydrophobicAromatic(X,Y)

16 acidic {E,D}

acidic(X,Y)

17 amino acid ratio

aminoacidRatio(X,W,Y)

18 amino acid pair ratio

aminoacidPairRatio(X,W,Y)
