Order | Descriptors | Description | Dimension | References |
---|---|---|---|---|
1 | AAC | Frequency of 20 amino acids | 20 | |
2 | APAAC | Amphiphilic pseudo-amino acid composition | 22 | [61] |
3 | DDE | Dipeptide deviation from expected mean | 400 | [24] |
4 | DPC | Frequency of 400 dipeptides | 400 | |
5 | PCP | Different biochemical and biophysical properties extracted from the AAindex database | 11 | |
6 | PAAC | Pseudo amino acid composition | 21 | [61] |
7 | Estate | Electrotopological state atom types | 79 | |
8 | FP4 | Presence of SMARTS patterns for functional groups | 307 | |
9 | MACCS | Binary representation of chemical features defined by MACCS keys | 166 | |
10 | Pubchem | Binary representation of substructures defined by PubChem | 881 |