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Table 1 List of the AAIndex indices used in this paper

From: An improved sequence based prediction protocol for DNA-binding proteins using SVM and comprehensive feature analysis

Feature ID

AAIndex ID

Feature description

39

CHOP780202

Normalized frequency of beta-sheet (Chou-Fasman, 1978b)

56

CIDH920103

Normalized hydrophobicity scales for alpha+beta-proteins (Cid et al., 1992)

58

CIDH920105

Normalized average hydrophobicity scales (Cid et al., 1992)

86

FAUJ880109

Number of hydrogen bond donors (Fauchere et al., 1988)

88

FAUJ880111

Positive charge (Fauchere et al., 1988)

95

FINA910104

Helix termination parameter at posision j+1 (Finkelstein et al., 1991)

100

GEIM800104

Alpha-helix indices for alpha/beta-proteins (Geisow-Roberts, 1980)

102

GEIM800106

Beta-strand indices for beta-proteins (Geisow-Roberts, 1980)

139

KANM800102

Average relative probability of beta-sheet (Kanehisa-Tsong, 1980)

146

KLEP840101

Net charge (Klein et al., 1984)

147

KRIW710101

Side chain interaction parameter (Krigbaum-Rubin, 1971)

167

LIFS790101

Conformational preference for all beta-strands (Lifson-Sander, 1979)

178

MEEJ800101

Retention coefficient in HPLC, pH7.4 (Meek, 1980)

214

OOBM770102

Short and medium range non-bonded energy per atom (Oobatake-Ooi, 1977)

229

PALJ810107

Normalized frequency of alpha-helix in all-alpha class (Palau et al., 1981)

280

QIAN880123

Weights for beta-sheet at the window position of 3 (Qian-Sejnowski, 1988)

299

RACS770103

Side chain orientational preference (Rackovsky-Scheraga, 1977)

321

RADA880108

Mean polarity (Radzicka-Wolfenden, 1988)

356

ROSM880102

Side chain hydropathy, corrected for solvation (Roseman, 1988)

365

SWER830101

Optimal matching hydrophobicity (Sweet-Eisenberg, 1983)

399

ZIMJ680102

Bulkiness (Zimmerman et al., 1968)

401

ZIMJ680104

Isoelectric point (Zimmerman et al., 1968)

422

AURR980120

Normalized positional residue frequency at helix termini C4’ (Aurora-Rose, 1998)

431

MUNV940103

Free energy in beta-strand conformation (Munoz-Serrano, 1994)

449

NADH010104

Hydropathy scale based on self-information values in the two-state model (20% accessibility) (Naderi-Manesh et al., 2001)

451

NADH010106

Hydropathy scale based on self-information values in the two-state model (36% accessibility) (Naderi-Manesh et al., 2001)

512

GUYH850105

Apparent partition energies calculated from Chothia index (Guy, 1985)

528

MIYS990104

Optimized relative partition energies - method C (Miyazawa-Jernigan, 1999)