Feature type | Descriptor | Abbreviation | No. of features |
---|---|---|---|
Simple composition | Amino acid composition | AAC | 20 |
Dipeptide composition | DPC | 400 | |
Atom-type composition | ATC | 5 | |
Bond-type composition | BTC | 4 | |
Physicochemical properties | Amino acid index | AAI | 553 |
Physicochemical property | PCP | 30 | |
Distribution & repeats | Distance distribution of repeats | DDR | 20 |
Residue repeat information | RRI | 20 | |
Property repeat index | PRI | 24 | |
Shannon entropy | Shannon entropy of a residue | SER | 20 |
Shannon entropy of properties | SEP | 25 | |
Shannon-entropy of a protein | SE | 1 | |
Miscellaneous | Amphiphilic pseudo amino acid composition | APAAC | 23 |
Pseudo amino acid composition | PAAC | 21 | |
Composition enhanced transition and distribution | CeTD | 189 | |
Quasi-sequence order | QSO | 42 | |
Sequence order coupling number | SOC | 2 |