List of 402 Amino Acid Indices with the Result of Clustering The columns correspond to the node number of the minimum spanning tree shown in Figure 5 (K. Tomii and M. Kanehisa, Protein Eng. 9, 27-36 (1996)), the AAindex accession number, and the description of each index. A. alpha and turn propensities A005 BEGF750101 Conformational parameter of inner helix (Beghin-Dirkx, 1975) A007 BEGF750103 Conformational parameter of beta-turn (Beghin-Dirkx, 1975) A016 BUNA790101 alpha-NH chemical shifts (Bundi-Wuthrich, 1979) A018 BUNA790103 Spin-spin coupling constants 3JHalpha-NH (Bundi-Wuthrich, 1979) A019 BURA740101 Normalized frequency of alpha-helix (Burgess et al., 1974) A022 CHAM830101 The Chou-Fasman parameter of the coil conformation (Charton-Charton, 1983) A023 CHAM830102 A parameter defined from the residuals obtained from the best correlation of the Chou-Fasman parameter of beta-sheet (Charton-Charton, 1983) A037 CHOP780101 Normalized frequency of beta-turn (Chou-Fasman, 1978a) A038 CHOP780201 Normalized frequency of alpha-helix (Chou-Fasman, 1978b) A040 CHOP780203 Normalized frequency of beta-turn (Chou-Fasman, 1978b) A042 CHOP780205 Normalized frequency of C-terminal helix (Chou-Fasman, 1978b) A044 CHOP780207 Normalized frequency of C-terminal non helical region (Chou-Fasman, 1978b) A047 CHOP780210 Normalized frequency of N-terminal non b region (Chou-Fasman, 1978b) A048 CHOP780211 Normalized frequency of C-terminal non b region (Chou-Fasman, 1978b) A049 CHOP780212 Frequency of the 1st residue in turn (Chou-Fasman, 1978b) A050 CHOP780213 Frequency of the 2nd residue in turn (Chou-Fasman, 1978b) A052 CHOP780215 Frequency of the 4th residue in turn (Chou-Fasman, 1978b) A053 CHOP780216 Normalized frequency of the 2nd and 3rd residues in turn (Chou-Fasman, 1978b) A060 CRAJ730101 Normalized frequency of middle helix (Crawford et al., 1973) A062 CRAJ730103 Normalized frequency of turn (Crawford et al., 1973) A074 FASG760103 Optical rotation (Fasman, 1976) A075 FASG760104 pK-N (Fasman, 1976) A090 FAUJ880113 pK-a(RCOOH) (Fauchere et al., 1988) A091 FINA770101 Helix-coil equilibrium constant (Finkelstein-Ptitsyn, 1977) A093 FINA910102 Helix initiation parameter at posision i,i+1,i+2 (Finkelstein et al., 1991) A097 GEIM800101 a-helix indices (Geisow-Roberts, 1980) A098 GEIM800102 a-helix indices for alpha-proteins (Geisow-Roberts, 1980) A099 GEIM800103 a-helix indices for beta-proteins (Geisow-Roberts, 1980) A100 GEIM800104 a-helix indices for alpha/beta-proteins (Geisow-Roberts, 1980) A104 GEIM800108 Aperiodic indices (Geisow-Roberts, 1980) A105 GEIM800109 Aperiodic indices for alpha-proteins (Geisow-Roberts, 1980) A107 GEIM800111 Aperiodic indices for alpha/beta-proteins (Geisow-Roberts, 1980) A119 ISOY800101 Normalized relative frequency of alpha-helix (Isogai et al., 1980) A121 ISOY800103 Normalized relative frequency of bend (Isogai et al., 1980) A122 ISOY800104 Normalized relative frequency of bend R (Isogai et al., 1980) A124 ISOY800106 Normalized relative frequency of helix end (Isogai et al., 1980) A138 KANM800101 Average relative probability of helix (Kanehisa-Tsong, 1980) A140 KANM800103 Average relative probability of inner helix (Kanehisa-Tsong, 1980) A160 LEVM780101 Normalized frequency of alpha-helix, with weights (Levitt, 1978) A162 LEVM780103 Normalized frequency of reverse turn, with weights (Levitt, 1978) A163 LEVM780104 Normalized frequency of alpha-helix, unweighted (Levitt, 1978) A165 LEVM780106 Normalized frequency of reverse turn, unweighted (Levitt, 1978) A166 LEWP710101 Frequency of occurrence in beta-bends (Lewis et al., 1971) A171 MAXF760101 Normalized frequency of alpha-helix (Maxfield-Scheraga, 1976) A176 MAXF760106 Normalized frequency of a region (Maxfield-Scheraga, 1976) A186 NAGK730101 Normalized frequency of alpha-helix (Nagano, 1973) A188 NAGK730103 Normalized frequency of coil (Nagano, 1973) A223 PALJ810101 Normalized frequency of alpha-helix from LG (Palau et al., 1981) A224 PALJ810102 Normalized frequency of alpha-helix from CF (Palau et al., 1981) A227 PALJ810105 Normalized frequency of turn from LG (Palau et al., 1981) A228 PALJ810106 Normalized frequency of turn from CF (Palau et al., 1981) A229 PALJ810107 Normalized frequency of alpha-helix in all-alphaclass (Palau et al., 1981) A230 PALJ810108 Normalized frequency of alpha-helix in alpha+beta class (Palau et al., 1981) A231 PALJ810109 Normalized frequency of alpha-helix in alpha/beta class (Palau et al., 1981) A235 PALJ810113 Normalized frequency of turn in all-alpha class (Palau et al., 1981) A236 PALJ810114 Normalized frequency of turn in all-beta class (Palau et al., 1981) A237 PALJ810115 Normalized frequency of turn in alpha+beta class (Palau et al., 1981) A238 PALJ810116 Normalized frequency of turn in alpha/beta class (Palau et al., 1981) A250 PRAM900102 Relative frequency in alpha-helix (Prabhakaran, 1990) A252 PRAM900104 Relative frequency in reverse-turn (Prabhakaran, 1990) A256 PTIO830101 Helix-coil equilibrium constant (Ptitsyn-Finkelstein, 1983) A258 QIAN880101 Weights for alpha-helix at the window position of -6 (Qian-Sejnowski, 1988) A259 QIAN880102 Weights for alpha-helix at the window position of -5 (Qian-Sejnowski, 1988) A260 QIAN880103 Weights for alpha-helix at the window position of -4 (Qian-Sejnowski, 1988) A261 QIAN880104 Weights for alpha-helix at the window position of -3 (Qian-Sejnowski, 1988) A262 QIAN880105 Weights for alpha-helix at the window position of -2 (Qian-Sejnowski, 1988) A263 QIAN880106 Weights for alpha-helix at the window position of -1 (Qian-Sejnowski, 1988) A264 QIAN880107 Weights for alpha-helix at the window position of 0 (Qian-Sejnowski, 1988) A265 QIAN880108 Weights for alpha-helix at the window position of 1 (Qian-Sejnowski, 1988) A266 QIAN880109 Weights for alpha-helix at the window position of 2 (Qian-Sejnowski, 1988) A267 QIAN880110 Weights for alpha-helix at the window position of 3 (Qian-Sejnowski, 1988) A268 QIAN880111 Weights for alpha-helix at the window position of 4 (Qian-Sejnowski, 1988) A269 QIAN880112 Weights for alpha-helix at the window position of 5 (Qian-Sejnowski, 1988) A270 QIAN880113 Weights for alpha-helix at the window position of 6 (Qian-Sejnowski, 1988) A274 QIAN880117 Weights for beta-sheet at the window position of -3 (Qian-Sejnowski, 1988) A286 QIAN880129 Weights for coil at the window position of -4 (Qian-Sejnowski, 1988) A287 QIAN880130 Weights for coil at the window position of -3 (Qian-Sejnowski, 1988) A288 QIAN880131 Weights for coil at the window position of -2 (Qian-Sejnowski, 1988) A289 QIAN880132 Weights for coil at the window position of -1 (Qian-Sejnowski, 1988) A290 QIAN880133 Weights for coil at the window position of 0 (Qian-Sejnowski, 1988) A291 QIAN880134 Weights for coil at the window position of 1 (Qian-Sejnowski, 1988) A292 QIAN880135 Weights for coil at the window position of 2 (Qian-Sejnowski, 1988) A293 QIAN880136 Weights for coil at the window position of 3 (Qian-Sejnowski, 1988) A294 QIAN880137 Weights for coil at the window position of 4 (Qian-Sejnowski, 1988) A295 QIAN880138 Weights for coil at the window position of 5 (Qian-Sejnowski, 1988) A296 QIAN880139 Weights for coil at the window position of 6 (Qian-Sejnowski, 1988) A300 RACS820104 Average relative fractional occurrence in EL(i) (Rackovsky-Scheraga, 1982) A304 RACS820108 Average relative fractional occurrence in AR(i-1) (Rackovsky-Scheraga, 1982) A306 RACS820110 Average relative fractional occurrence in EL(i-1) (Rackovsky-Scheraga, 1982) A308 RACS820112 Average relative fractional occurrence in ER(i-1) (Rackovsky-Scheraga, 1982) A310 RACS820114 Value of theta(i-1) (Rackovsky-Scheraga, 1982) A328 RICJ880107 Relative preference value at N4 (Richardson-Richardson, 1988) A330 RICJ880109 Relative preference value at Mid (Richardson-Richardson, 1988) A331 RICJ880110 Relative preference value at C5 (Richardson-Richardson, 1988) A333 RICJ880112 Relative preference value at C3 (Richardson-Richardson, 1988) A334 RICJ880113 Relative preference value at C2 (Richardson-Richardson, 1988) A335 RICJ880114 Relative preference value at C1 (Richardson-Richardson, 1988) A337 RICJ880116 Relative preference value at C' (Richardson-Richardson, 1988) A338 RICJ880117 Relative preference value at C'' (Richardson-Richardson, 1988) A340 ROBB760101 Information measure for alpha-helix (Robson-Suzuki, 1976) A342 ROBB760103 Information measure for middle helix (Robson-Suzuki, 1976) A343 ROBB760104 Information measure for C-terminal helix (Robson-Suzuki, 1976) A346 ROBB760107 Information measure for extended without H-bond (Robson-Suzuki, 1976) A347 ROBB760108 Information measure for turn (Robson-Suzuki, 1976) A348 ROBB760109 Information measure for N-terminal turn (Robson-Suzuki, 1976) A349 ROBB760110 Information measure for middle turn (Robson-Suzuki, 1976) A350 ROBB760111 Information measure for C-terminal turn (Robson-Suzuki, 1976) A351 ROBB760112 Information measure for coil (Robson-Suzuki, 1976) A352 ROBB760113 Information measure for loop (Robson-Suzuki, 1976) A359 SNEP660101 Principal component I (Sneath, 1966) A362 SNEP660104 Principal component IV (Sneath, 1966) A363 SUEM840101 Zimm-Bragg parameter s at 20° C (Sueki et al., 1984) A366 TANS770101 Normalized frequency of alpha-helix (Tanaka-Scheraga, 1977) A367 TANS770102 Normalized frequency of isolated helix (Tanaka-Scheraga, 1977) A369 TANS770104 Normalized frequency of chain reversal R (Tanaka-Scheraga, 1977) A375 TANS770110 Normalized frequency of chain reversal (Tanaka-Scheraga, 1977) A376 VASM830101 Relative population of conformational state A (Vasquez et al., 1983) A391 WOLS870103 Principal property value z3 (Wold et al., 1987) B. beta propensity B020 BURA740102 Normalized frequency of extended structure (Burgess et al., 1974) B028 CHAM830107 A parameter of charge transfer capability (Charton-Charton, 1983) B039 CHOP780202 Normalized frequency of beta-sheet (Chou-Fasman, 1978b) B045 CHOP780208 Normalized frequency of N-terminal beta-sheet (Chou-Fasman, 1978b) B046 CHOP780209 Normalized frequency of C-terminal beta-sheet (Chou-Fasman, 1978b) B061 CRAJ730102 Normalized frequency of beta-sheet (Crawford et al., 1973) B101 GEIM800105 beta-strand indices (Geisow-Roberts, 1980) B102 GEIM800106 beta-strand indices for beta-proteins (Geisow-Roberts, 1980) B103 GEIM800107 beta-strand indices for alpha/beta-proteins (Geisow-Roberts, 1980) B106 GEIM800110 Aperiodic indices for beta-proteins (Geisow-Roberts, 1980) B120 ISOY800102 Normalized relative frequency of extended structure (Isogai et al., 1980) B139 KANM800102 Average relative probability of beta-sheet (Kanehisa-Tsong, 1980) B141 KANM800104 Average relative probability of inner beta-sheet (Kanehisa-Tsong, 1980) B161 LEVM780102 Normalized frequency of beta-sheet, with weights (Levitt, 1978) B164 LEVM780105 Normalized frequency of beta-sheet, unweighted (Levitt, 1978) B167 LIFS790101 Conformational preference for all beta-strands (Lifson-Sander, 1979) B168 LIFS790102 Conformational preference for parallel beta-strands (Lifson-Sander, 1979) B169 LIFS790103 Conformational preference for antiparallel beta-strands (Lifson-Sander, 1979) B172 MAXF760102 Normalized frequency of extended structure (Maxfield-Scheraga, 1976) B187 NAGK730102 Normalized frequency of beta-structure (Nagano, 1973) B218 OOBM850101 Optimized beta-structure-coil equilibrium constant (Oobatake et al., 1985) B221 OOBM850104 Optimized average non-bonded energy per atom (Oobatake et al., 1985) B225 PALJ810103 Normalized frequency of beta-sheet from LG (Palau et al., 1981) B226 PALJ810104 Normalized frequency of beta-sheet from CF (Palau et al., 1981) B232 PALJ810110 Normalized frequency of beta-sheet in all-beta class (Palau et al., 1981) B234 PALJ810112 Normalized frequency of beta-sheet in alpha/beta class (Palau et al., 1981) B251 PRAM900103 Relative frequency in beta-sheet (Prabhakaran, 1990) B257 PTIO830102 beta-coil equilibrium constant (Ptitsyn-Finkelstein, 1983) B275 QIAN880118 Weights for beta-sheet at the window position of -2 (Qian-Sejnowski, 1988) B276 QIAN880119 Weights for beta-sheet at the window position of -1 (Qian-Sejnowski, 1988) B277 QIAN880120 Weights for beta-sheet at the window position of 0 (Qian-Sejnowski, 1988) B278 QIAN880121 Weights for beta-sheet at the window position of 1 (Qian-Sejnowski, 1988) B279 QIAN880122 Weights for beta-sheet at the window position of 2 (Qian-Sejnowski, 1988) B307 RACS820111 Average relative fractional occurrence in E0(i-1) (Rackovsky-Scheraga, 1982) B344 ROBB760105 Information measure for extended (Robson-Suzuki, 1976) B345 ROBB760106 Information measure for pleated-sheet (Robson-Suzuki, 1976) B368 TANS770103 Normalized frequency of extended structure (Tanaka-Scheraga, 1977) C. Composition C029 CHAM830108 A parameter of charge transfer donor capability (Charton-Charton, 1983) C064 DAYM780101 Amino acid composition (Dayhoff et al., 1978b) C116 HUTJ700101 Heat capacity (Hutchens, 1970) C134 JOND920101 Relative frequency of occurrence (Jones et al., 1992) C136 JUKT750101 Amino acid distribution (Jukes et al., 1975) C137 JUNJ780101 Sequence frequency (Jungck, 1978) C144 KARP850103 Flexibility parameter for two rigid neighbors (Karplus-Schulz, 1985) C189 NAKH920101 AA composition of CYT of single-spanning proteins (Nakashima-Nishikawa, 1992) C190 NAKH920102 AA composition of CYT2 of single-spanning proteins (Nakashima-Nishikawa, 1992) C191 NAKH920103 AA composition of EXT of single-spanning proteins (Nakashima-Nishikawa, 1992) C192 NAKH920104 AA composition of EXT2 of single-spanning proteins (Nakashima-Nishikawa, 1992) C193 NAKH920105 AA composition of MEM of single-spanning proteins (Nakashima-Nishikawa, 1992) C194 NAKH920106 AA composition of CYT of multi-spanning proteins (Nakashima-Nishikawa, 1992) C195 NAKH920107 AA composition of EXT of multi-spanning proteins (Nakashima-Nishikawa, 1992) C196 NAKH920108 AA composition of MEM of multi-spanning proteins (Nakashima-Nishikawa, 1992) C197 NAKH900101 AA composition of total proteins (Nakashima et al., 1990) C198 NAKH900102 SD of AA composition of total proteins (Nakashima et al., 1990) C199 NAKH900103 AA composition of mt-proteins (Nakashima et al., 1990) C201 NAKH900105 AA composition of mt-proteins from animal (Nakashima et al., 1990) C203 NAKH900107 AA composition of mt-proteins from fungi and plant (Nakashima et al., 1990) C205 NAKH900109 AA composition of membrane proteins (Nakashima et al., 1990) C207 NAKH900111 Transmembrane regions of non-mt-proteins (Nakashima et al., 1990) C208 NAKH900112 Transmembrane regions of mt-proteins (Nakashima et al., 1990) C301 RACS820105 Average relative fractional occurrence in E0(i) (Rackovsky-Scheraga, 1982) H. Hydrophobicity H002 ARGP820101 Hydrophobicity index (Argos et al., 1982) H003 ARGP820102 Signal sequence helical potential (Argos et al., 1982) H004 ARGP820103 Membrane-buried preference parameters (Argos et al., 1982) H006 BEGF750102 Conformational parameter of beta-structure (Beghin-Dirkx, 1975) H008 BHAR880101 Average flexibility indices (Bhaskaran-Ponnuswamy, 1988) H010 BIOV880101 Information value for accessibility; average fraction 35% (Biou et al., 1988) H011 BIOV880102 Information value for accessibility; average fraction 23% (Biou et al., 1988) H012 BROC820101 Retention coefficient in TFA (Browne et al., 1982) H013 BROC820102 Retention coefficient in HFBA (Browne et al., 1982) H014 BULH740101 Transfer free energy to surface (Bull-Breese, 1974) H031 CHAM820102 Free energy of solution in water, kcal/mole (Charton-Charton, 1982) H034 CHOC760102 Residue accessible surface area in folded protein (Chothia, 1976) H035 CHOC760103 Proportion of residues 95% buried (Chothia, 1976) H036 CHOC760104 Proportion of residues 100% buried (Chothia, 1976) H041 CHOP780204 Normalized frequency of N-terminal helix (Chou-Fasman, 1978b) H054 CIDH920101 Normalized hydrophobicity scales for alpha-proteins (Cid et al., 1992) H055 CIDH920102 Normalized hydrophobicity scales for beta-proteins (Cid et al., 1992) H056 CIDH920103 Normalized hydrophobicity scales for alpha+beta-proteins (Cid et al., 1992) H057 CIDH920104 Normalized hydrophobicity scales for alpha/beta-proteins (Cid et al., 1992) H058 CIDH920105 Normalized average hydrophobicity scales (Cid et al., 1992) H066 DESM900101 Membrane preference for cytochrome b: MPH89 (Degli Esposti et al., 1990) H067 DESM900102 Average membrane preference: AMP07 (Degli Esposti et al., 1990) H068 EISD840101 Consensus normalized hydrophobicity scale (Eisenberg, 1984) H069 EISD860101 Solvation free energy (Eisenberg-McLachlan, 1986) H070 EISD860102 Atom-based hydrophobic moment (Eisenberg-McLachlan, 1986) H071 EISD860103 Direction of hydrophobic moment (Eisenberg-McLachlan, 1986) H073 FASG760102 Melting point (Fasman, 1976) H076 FASG760105 pK-C (Fasman, 1976) H077 FAUJ830101 Hydrophobic parameter p (Fauchere-Pliska, 1983) H085 FAUJ880108 Localized electrical effect (Fauchere et al., 1988) H086 FAUJ880109 Number of hydrogen bond donors (Fauchere et al., 1988) H087 FAUJ880110 Number of full nonbonding orbitals (Fauchere et al., 1988) H088 FAUJ880111 Positive charge (Fauchere et al., 1988) H089 FAUJ880112 Negative charge (Fauchere et al., 1988) H092 FINA910101 Helix initiation parameter at posision i-1 (Finkelstein et al., 1991) H094 FINA910103 Helix termination parameter at posision j-2,j-1,j (Finkelstein et al., 1991) H095 FINA910104 Helix termination parameter at posision j+1 (Finkelstein et al., 1991) H108 GOLD730101 Hydrophobicity factor (Goldsack-Chalifoux, 1973) H110 GRAR740101 Composition (Grantham, 1974) H111 GRAR740102 Polarity (Grantham, 1974) H113 GUYH850101 Partition energy (Guy, 1985) H114 HOPA770101 Hydration number (Hopfinger, 1971), Cited by Charton-Charton (1982) H115 HOPT810101 Hydrophilicity value (Hopp-Woods, 1981) H125 ISOY800107 Normalized relative frequency of double bend (Isogai et al., 1980) H129 JANJ780101 Average accessible surface area (Janin et al., 1978) H130 JANJ780102 Percentage of buried residues (Janin et al., 1978) H131 JANJ780103 Percentage of exposed residues (Janin et al., 1978) H127 JANJ790101 Ratio of buried and accessible molar fractions (Janin, 1979) H128 JANJ790102 Transfer free energy (Janin, 1979) H132 JOND750101 Hydrophobicity (Jones, 1975) H133 JOND750102 pK (-COOH) (Jones, 1975) H142 KARP850101 Flexibility parameter for no rigid neighbors (Karplus-Schulz, 1985) H143 KARP850102 Flexibility parameter for one rigid neighbor (Karplus-Schulz, 1985) H145 KHAG800101 The Kerr-constant increments (Khanarian-Moore, 1980) H146 KLEP840101 Net charge (Klein et al., 1984) H147 KRIW790101 Side chain interaction parameter (Krigbaum-Komoriya, 1979) H148 KRIW790102 Fraction of site occupied by water (Krigbaum-Komoriya, 1979) H150 KRIW710101 Side chain interaction parameter (Krigbaum-Rubin, 1971) H151 KYTJ820101 Hydropathy index (Kyte-Doolittle, 1982) H152 LAWE840101 Transfer free energy, CHP/water (Lawson et al., 1984) H153 LEVM760101 Hydrophobic parameter (Levitt, 1976) H170 MANP780101 Average surrounding hydrophobicity (Manavalan-Ponnuswamy, 1978) H178 MEEJ800101 Retention coefficient in HPLC, pH7.4 (Meek, 1980) H179 MEEJ800102 Retention coefficient in HPLC, pH2.1 (Meek, 1980) H180 MEEJ810101 Retention coefficient in NaClO4 (Meek-Rossetti, 1981) H181 MEEJ810102 Retention coefficient in NaH2PO4 (Meek-Rossetti, 1981) H182 MEIH800101 Average reduced distance for Ca (Meirovitch et al., 1980) H183 MEIH800102 Average reduced distance for side chain (Meirovitch et al., 1980) H184 MEIH800103 Average side chain orientation angle (Meirovitch et al., 1980) H185 MIYS850101 Effective partition energy (Miyazawa-Jernigan, 1985) H200 NAKH900104 Normalized composition of mt-proteins (Nakashima et al., 1990) H202 NAKH900106 Normalized composition from animal (Nakashima et al., 1990) H204 NAKH900108 Normalized composition from fungi and plant (Nakashima et al., 1990) H206 NAKH900110 Normalized composition of membrane proteins (Nakashima et al., 1990) H209 NAKH900113 Ratio of average and computed composition (Nakashima et al., 1990) H210 NISK800101 8 * contact number (Nishikawa-Ooi, 1980) H211 NISK860101 14 * contact number (Nishikawa-Ooi, 1986) H212 NOZY710101 Transfer energy, organic solvent/water (Nozaki-Tanford, 1971) H213 OOBM770101 Average non-bonded energy per atom (Oobatake-Ooi, 1977) H215 OOBM770103 Long range non-bonded energy per atom (Oobatake-Ooi, 1977) H220 OOBM850103 Optimized transfer energy parameter (Oobatake et al., 1985) H222 OOBM850105 Optimized side chain interaction parameter (Oobatake et al., 1985) H233 PALJ810111 Normalized frequency of beta-sheet in a+b class (Palau et al., 1981) H239 PARJ860101 HPLC parameter (Parker et al., 1986) H240 PLIV810101 Partition coefficient (Pliska et al., 1981) H241 PONP800101 Surrounding hydrophobicity in folded form (Ponnuswamy et al., 1980) H242 PONP800102 Average gain in surrounding hydrophobicity (Ponnuswamy et al., 1980) H243 PONP800103 Average gain ratio in surrounding hydrophobicity (Ponnuswamy et al., 1980) H244 PONP800104 Surrounding hydrophobicity in alpha-helix (Ponnuswamy et al., 1980) H245 PONP800105 Surrounding hydrophobicity in beta-sheet (Ponnuswamy et al., 1980) H246 PONP800106 Surrounding hydrophobicity in turn (Ponnuswamy et al., 1980) H247 PONP800107 Accessibility reduction ratio (Ponnuswamy et al., 1980) H248 PONP800108 Average number of surrounding residues (Ponnuswamy et al., 1980) H253 PRAM820101 Intercept in regression analysis (Prabhakaran-Ponnuswamy, 1982) H249 PRAM900101 Hydrophobicity (Prabhakaran, 1990) H271 QIAN880114 Weights for beta-sheet at the window position of -6 (Qian-Sejnowski, 1988) H272 QIAN880115 Weights for beta-sheet at the window position of -5 (Qian-Sejnowski, 1988) H273 QIAN880116 Weights for beta-sheet at the window position of -4 (Qian-Sejnowski, 1988) H283 QIAN880126 Weights for beta-sheet at the window position of 6 (Qian-Sejnowski, 1988) H284 QIAN880127 Weights for coil at the window position of -6 (Qian-Sejnowski, 1988) H285 QIAN880128 Weights for coil at the window position of -5 (Qian-Sejnowski, 1988) H297 RACS820101 Average relative fractional occurrence in A0(i) (Rackovsky-Scheraga, 1982) H299 RACS820103 Average relative fractional occurrence in AL(i) (Rackovsky-Scheraga, 1982) H311 RACS770101 Average reduced distance for Ca (Rackovsky-Scheraga, 1977) H312 RACS770102 Average reduced distance for side chain (Rackovsky-Scheraga, 1977) H313 RACS770103 Side chain orientational preference (Rackovsky-Scheraga, 1977) H314 RADA880101 Transfer free energy from chx to wat (Radzicka-Wolfenden, 1988) H315 RADA880102 Transfer free energy from oct to wat (Radzicka-Wolfenden, 1988) H317 RADA880104 Transfer free energy from chx to oct (Radzicka-Wolfenden, 1988) H318 RADA880105 Transfer free energy from vap to oct (Radzicka-Wolfenden, 1988) H320 RADA880107 Energy transfer from out to in(95%buried) (Radzicka-Wolfenden, 1988) H321 RADA880108 Mean polarity (Radzicka-Wolfenden, 1988) H325 RICJ880104 Relative preference value at N1 (Richardson-Richardson, 1988) H326 RICJ880105 Relative preference value at N2 (Richardson-Richardson, 1988) H327 RICJ880106 Relative preference value at N3 (Richardson-Richardson, 1988) H329 RICJ880108 Relative preference value at N5 (Richardson-Richardson, 1988) H332 RICJ880111 Relative preference value at C4 (Richardson-Richardson, 1988) H341 ROBB760102 Information measure for N-terminal helix (Robson-Suzuki, 1976) H339 ROBB790101 Hydration free energy (Robson-Osguthorpe, 1979) H354 ROSG850102 Mean fractional area loss (Rose et al., 1985) H355 ROSM880101 Side chain hydropathy, uncorrected for solvation (Roseman, 1988) H356 ROSM880102 Side chain hydropathy, corrected for solvation (Roseman, 1988) H357 ROSM880103 Loss of Side chain hydropathy by helix formation (Roseman, 1988) H358 SIMZ760101 Transfer free energy (Simon, 1976), Cited by Charton-Charton (1982) H360 SNEP660102 Principal component II (Sneath, 1966) H364 SUEM840102 Zimm-Bragg parameter s´1.0E4 (Sueki et al., 1984) H365 SWER830101 Optimal matching hydrophobicity (Sweet-Eisenberg, 1983) H371 TANS770106 Normalized frequency of chain reversal D (Tanaka-Scheraga, 1977) H373 TANS770108 Normalized frequency of zR (Tanaka-Scheraga, 1977) H377 VASM830102 Relative population of conformational state C (Vasquez et al., 1983) H378 VASM830103 Relative population of conformational state E (Vasquez et al., 1983) H379 VELV850101 Electron-ion interaction potential (Veljkovic et al., 1985) H380 VENT840101 Bitterness (Venanzi, 1984) H381 VHEG790101 Transfer free energy to lipophilic phase (von Heijne-Blomberg, 1979) H382 WARP780101 Average interactions per side chain atom (Warme-Morgan, 1978) H384 WERD780101 Propensity to be buried inside (Wertz-Scheraga, 1978) H386 WERD780103 Free energy change of a(Ri) to a(Rh) (Wertz-Scheraga, 1978) H387 WERD780104 Free energy change of e(i) to a(Rh) (Wertz-Scheraga, 1978) H388 WOEC730101 Polar requirement (Woese, 1973) H392 WOLR810101 Hydration potential (Wolfenden et al., 1981) H389 WOLS870101 Principal property value z1 (Wold et al., 1987) H393 YUTK870101 Unfolding Gibbs energy in water, pH7.0 (Yutani et al., 1987) H394 YUTK870102 Unfolding Gibbs energy in water, pH9.0 (Yutani et al., 1987) H395 YUTK870103 Activation Gibbs energy of unfolding, pH7.0 (Yutani et al., 1987) H396 YUTK870104 Activation Gibbs energy of unfolding, pH9.0 (Yutani et al., 1987) H398 ZIMJ680101 Hydrophobicity (Zimmerman et al., 1968) H400 ZIMJ680103 Polarity (Zimmerman et al., 1968) H401 ZIMJ680104 Isoelectric point (Zimmerman et al., 1968) H402 ZIMJ680105 RF rank (Zimmerman et al., 1968) P. Physicochemical properties P001 ANDN920101 a-CH chemical shifts (Andersen et al., 1992) P009 BIGC670101 Residue volume (Bigelow, 1967) P015 BULH740102 Apparent partial specific volume (Bull-Breese, 1974) P017 BUNA790102 a-CH chemical shifts (Bundi-Wuthrich, 1979) P024 CHAM830103 The number of atoms in the side chain labelled 1+1 (Charton-Charton, 1983) P026 CHAM830105 The number of atoms in the side chain labelled 3+1 (Charton-Charton, 1983) P027 CHAM830106 The number of bonds in the longest chain (Charton-Charton, 1983) P030 CHAM820101 Polarizability parameter (Charton-Charton, 1982) P032 CHOC750101 Average volume of buried residue (Chothia, 1975) P033 CHOC760101 Residue accessible surface area in tripeptide (Chothia, 1976) P059 COHE430101 Partial specific volume (Cohn-Edsall, 1943) P063 DAWD720101 Size (Dawson, 1972) P065 DAYM780201 Relative mutability (Dayhoff et al., 1978a) P072 FASG760101 Molecular weight (Fasman, 1976) P078 FAUJ880101 Graph shape index (Fauchere et al., 1988) P080 FAUJ880103 Normalized van der Waals volume (Fauchere et al., 1988) P081 FAUJ880104 STERIMOL length of the side chain (Fauchere et al., 1988) P082 FAUJ880105 STERIMOL minimum width of the side chain (Fauchere et al., 1988) P083 FAUJ880106 STERIMOL maximum width of the side chain (Fauchere et al., 1988) P096 GARJ730101 Partition coefficient (Garel et al., 1973) P109 GOLD730102 Residue volume (Goldsack-Chalifoux, 1973) P112 GRAR740103 Volume (Grantham, 1974) P117 HUTJ700102 Absolute entropy (Hutchens, 1970) P118 HUTJ700103 Entropy of formation (Hutchens, 1970) P135 JOND920102 Relative mutability (Jones et al., 1992) P149 KRIW790103 Side chain volume (Krigbaum-Komoriya, 1979) P154 LEVM760102 Distance between Ca and centroid of side chain (Levitt, 1976) P157 LEVM760105 Radius of gyration of side chain (Levitt, 1976) P158 LEVM760106 van der Waals parameter R0 (Levitt, 1976) P159 LEVM760107 van der Waals parameter e (Levitt, 1976) P177 MCMT640101 Refractivity (McMeekin et al., 1964), Cited by Jones (1975) P214 OOBM770102 Short and medium range non-bonded energy per atom (Oobatake-Ooi, 1977) P216 OOBM770104 Average non-bonded energy per residue (Oobatake-Ooi, 1977) P217 OOBM770105 Short and medium range non-bonded energy per residue (Oobatake-Ooi, 1977) P219 OOBM850102 Optimized propensity to form reverse turn (Oobatake et al., 1985) P280 QIAN880123 Weights for beta-sheet at the window position of 3 (Qian-Sejnowski, 1988) P281 QIAN880124 Weights for beta-sheet at the window position of 4 (Qian-Sejnowski, 1988) P282 QIAN880125 Weights for beta-sheet at the window position of 5 (Qian-Sejnowski, 1988) P316 RADA880103 Transfer free energy from vap to chx (Radzicka-Wolfenden, 1988) P319 RADA880106 Accessible surface area (Radzicka-Wolfenden, 1988) P353 ROSG850101 Mean area buried on transfer (Rose et al., 1985) P361 SNEP660103 Principal component III (Sneath, 1966) P383 WEBA780101 RF value in high salt chromatography (Weber-Lacey, 1978) P390 WOLS870102 Principal property value z2 (Wold et al., 1987) P397 ZASB820101 Dependence of partition coefficient on ionic strength (Zaslavsky et al., 1982) P399 ZIMJ680102 Bulkiness (Zimmerman et al., 1968) O. Other properties O021 CHAM810101 Steric parameter (Charton, 1981) O025 CHAM830104 The number of atoms in the side chain labelled 2+1 (Charton-Charton, 1983) O043 CHOP780206 Normalized frequency of N-terminal non helical region (Chou-Fasman, 1978b) O051 CHOP780214 Frequency of the 3rd residue in turn (Chou-Fasman, 1978b) O079 FAUJ880102 Smoothed upsilon steric parameter (Fauchere et al., 1988) O084 FAUJ880107 N.m.r. chemical shift of alpha-carbon (Fauchere et al., 1988) O123 ISOY800105 Normalized relative frequency of bend S (Isogai et al., 1980) O126 ISOY800108 Normalized relative frequency of coil (Isogai et al., 1980) O155 LEVM760103 Side chain angle theta(AAR) (Levitt, 1976) O156 LEVM760104 Side chain torsion angle phi(AAAR) (Levitt, 1976) O173 MAXF760103 Normalized frequency of zR (Maxfield-Scheraga, 1976) O174 MAXF760104 Normalized frequency of left-handed alpha-helix (Maxfield-Scheraga, 1976) O175 MAXF760105 Normalized frequency of zL (Maxfield-Scheraga, 1976) O254 PRAM820102 Slope in regression analysis ´1.0E1 (Prabhakaran-Ponnuswamy, 1982) O255 PRAM820103 Correlation coefficient in regression analysis (Prabhakaran-Ponnuswamy, 1982) O298 RACS820102 Average relative fractional occurrence in AR(i) (Rackovsky-Scheraga, 1982) O302 RACS820106 Average relative fractional occurrence in ER(i) (Rackovsky-Scheraga, 1982) O303 RACS820107 Average relative fractional occurrence in A0(i-1) (Rackovsky-Scheraga, 1982) O305 RACS820109 Average relative fractional occurrence in AL(i-1) (Rackovsky-Scheraga, 1982) O309 RACS820113 Value of theta(i) (Rackovsky-Scheraga, 1982) O322 RICJ880101 Relative preference value at N'' (Richardson- Richardson, 1988) O323 RICJ880102 Relative preference value at N' (Richardson-Richardson, 1988) O324 RICJ880103 Relative preference value at N-cap (Richardson-Richardson, 1988) O336 RICJ880115 Relative preference value at C-cap (Richardson-Richardson, 1988) O370 TANS770105 Normalized frequency of chain reversal S (Tanaka-Scheraga, 1977) O372 TANS770107 Normalized frequency of left-handed helix (Tanaka-Scheraga, 1977) O374 TANS770109 Normalized frequency of coil (Tanaka-Scheraga, 1977) O385 WERD780102 Free energy change of e(i) to e(ex) (Wertz-Scheraga, 1978)