Table 1.
Features constituting the sss feature set
| feature ID | explanation | selected |
| GB500 | Estimated gas-phase basicity at 500 K (Zhang et al., 2004) | 20 |
| VASM830103 | Relative population of conformational state E (Vasquez et al., 1983) | 11 |
| NADH010106 | Hydropathy scale (36% accessibility) (Naderi-Manesh et al., 2001) | 9 |
| FAUJ880111 | Positive charge (Fauchere et al., 1988) | 6 |
| WILM950102 | Hydrophobicity coefficient in RP-HPLC, C8 with 0.1%TFA/MeCN/H2O (Wilce et al. 1995) | 6 |
| OOBM850104 | Optimized average non-bonded energy per atom (Oobatake et al., 1985) | 2 |
| mass | Molecular mass of the peptide | - |
| KHAG800101 | The Kerr-constant increments (Khanarian-Moore, 1980) | - |
| NADH010107 | Hydropathy scale (50% accessibility) (Naderi-Manesh et al., 2001) | - |
| ROBB760107 | Information measure for extended without H-bond (Robson-Suzuki, 1976) | - |
| FINA770101 | Helix-coil equilibrium constant (Finkelstein-Ptitsyn, 1977) | - |
| ARGP820102 | Signal sequence helical potential (Argos et al., 1982) | - |
| R | No. of arginine residues | 20 |
| F | No. of phenylalanine residues | 20 |
| M | No. of methionine residues | 17 |
| Q | No. of glutamine residues | 5 |
| Y | No. of tyrosine residues | 4 |
| H | No. of histidine residues | - |
The "selected" column shows the number of times out of twenty runs of a forward stepwise selection that selected the corresponding feature. Hand-picked features are printed in bold face. Feature selection on the aa (above the separating line) and seq (below) feature set were done independently of each other. The seq feature set fully includes mono. No di- or tri-peptide string was selected consistently.