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Table 5 Sequential Predicates

From: A discriminative method for family-based protein remote homology detection that combines inductive logic programming and propositional models

Property/amino acid set

Predicate

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)

  1. For each predicate like property(X, Y) numbered from 1 to 18, X is the sequence identifier, Y is the percentage of amino acids with some physico-chemical property. For the predicate aminoacidRatio(X, W, Y), X is the sequence identifier, W is an amino acid, and Y is the percentage of amino acid W within sequence X. For the predicate aminoacidPairRatio(X, W, Y), X and Y are defined as before, and W is a pair of amino acids.