Contacts of the helix formed by residues 1010 - 1040 (chain F) in PDB entry 5WUA


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with ILE1010 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1005F  LEU*     3.8    27.1    -      -       +      +
   1008F  ALA*     3.1    10.2    +      -       +      +
   1009F  GLY*     1.3    72.7    -      -       -      +
   1011F  LEU*     1.3    57.6    +      -       -      +
   1012F  LEU      3.0     0.9    -      -       -      -
   1013F  LEU*     2.9    28.5    +      -       +      +
   1014F  SER*     3.2     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1011 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1009F  GLY      2.6     8.4    +      -       -      +
   1010F  ILE*     1.3    75.1    -      -       -      +
   1012F  LEU*     1.3    56.0    +      -       -      +
   1014F  SER*     2.9    32.3    +      -       -      -
   1015F  LEU*     3.6     6.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1012 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1009F  GLY*     2.7    22.9    +      -       -      +
   1011F  LEU*     1.3    72.3    -      -       -      +
   1013F  LEU*     1.3    59.5    +      -       -      +
   1015F  LEU*     4.5     1.7    +      -       -      +
   1016F  LEU*     4.3    15.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1013 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1010F  ILE*     2.9    15.8    +      -       +      +
   1012F  LEU*     1.3    76.2    -      -       -      +
   1014F  SER*     1.3    68.2    +      -       -      +
   1016F  LEU*     4.4     3.4    -      -       -      +
   1017F  VAL*     3.4    19.8    +      -       -      +
   1085F  THR*     4.9    24.1    -      -       -      +
   1089F  THR*     5.6     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER1014 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1010F  ILE      3.2     5.3    +      -       -      -
   1011F  LEU*     2.9    24.2    +      -       -      -
   1013F  LEU*     1.3    81.2    -      -       -      +
   1015F  LEU*     1.3    65.4    +      -       -      -
   1017F  VAL*     3.0    12.5    +      -       -      +
   1018F  PHE*     3.1    10.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1015 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1011F  LEU      3.6     6.4    +      -       -      +
   1012F  LEU      4.5     1.7    +      -       -      +
   1014F  SER*     1.3    79.1    -      -       -      +
   1016F  LEU*     1.3    51.1    +      -       -      +
   1018F  PHE*     2.9    11.9    +      -       -      +
   1019F  SER*     2.5    35.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1016 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1012F  LEU      4.3    14.9    +      -       -      +
   1013F  LEU*     4.0     4.2    +      -       -      +
   1014F  SER      3.1     0.8    +      -       -      -
   1015F  LEU*     1.3    77.2    -      -       -      +
   1017F  VAL*     1.3    63.8    +      -       -      +
   1019F  SER*     2.9    21.2    +      -       -      -
   1020F  GLN*     3.0    10.2    +      -       -      +
   1078F  LEU*     5.4     0.7    -      -       -      -
   1081F  VAL*     4.0    31.4    -      -       +      +
   1085F  THR*     5.6     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1017 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1013F  LEU      3.4    11.2    +      -       -      +
   1014F  SER*     3.0    10.8    +      -       -      +
   1016F  LEU*     1.3    78.6    -      -       -      +
   1018F  PHE*     1.3    58.0    +      -       -      +
   1020F  GLN*     2.9    29.6    +      -       -      +
   1021F  LEU*     3.2     5.2    +      -       -      +
   1081F  VAL      6.0     0.2    -      -       -      -
   1082F  THR*     5.8     8.3    -      -       -      +
   1085F  THR*     6.5     1.1    -      -       -      -
   1144F  SER*     5.4    12.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1018 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1014F  SER      3.1     9.0    +      -       -      +
   1015F  LEU*     2.9    18.3    +      -       -      +
   1017F  VAL*     1.3    73.1    -      -       -      +
   1019F  SER*     1.3    55.5    +      -       -      +
   1020F  GLN      2.9     4.9    -      -       -      -
   1021F  LEU*     2.9    24.8    +      -       +      +
   1022F  LEU*     3.1    16.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1019 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1015F  LEU      2.5    16.2    +      -       -      -
   1016F  LEU*     2.9    17.2    +      -       -      -
   1018F  PHE*     1.3    71.6    -      -       -      +
   1020F  GLN*     1.3    55.5    +      -       -      +
   1022F  LEU*     5.2     2.6    -      -       -      +
   1023F  LYS*     3.2    22.6    +      -       -      +
   1074F  LEU      4.9     0.3    -      -       -      +
   1078F  LEU*     4.3     6.9    +      -       -      +
   1081F  VAL*     6.1     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1020 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1016F  LEU      3.0     6.0    +      -       -      +
   1017F  VAL*     2.9    21.0    +      -       -      +
   1019F  SER*     1.3    76.3    -      -       -      +
   1021F  LEU*     1.3    63.9    +      -       -      +
   1023F  LYS*     2.9    13.5    +      -       -      +
   1024F  HIS*     3.0    13.6    +      -       -      +
   1078F  LEU*     3.4    32.3    -      -       +      +
   1082F  THR*     5.5     5.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1021 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017F  VAL      3.2     6.1    +      -       -      +
   1018F  PHE*     2.9    18.1    +      -       +      +
   1020F  GLN*     1.3    73.4    -      -       -      +
   1022F  LEU*     1.3    65.2    +      -       -      +
   1024F  HIS*     2.9    17.2    +      -       -      +
   1025F  MET*     3.0    14.1    +      -       -      +
   1148F  LEU*     4.9    21.8    -      -       +      +
   1152F  SER*     6.5     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1022 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1018F  PHE      3.1    11.5    +      -       -      +
   1019F  SER*     5.2     2.7    -      -       -      +
   1021F  LEU*     1.3    77.8    -      -       -      +
   1023F  LYS*     1.3    64.6    +      -       -      +
   1025F  MET*     3.0     7.7    +      -       -      -
   1026F  VAL*     2.8    30.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1023 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1019F  SER      3.2    17.9    +      -       -      +
   1020F  GLN*     2.9    16.2    +      -       -      +
   1022F  LEU*     1.3    77.8    -      -       -      +
   1024F  HIS*     1.3    60.1    +      -       -      +
   1026F  VAL*     4.4     3.1    -      -       -      +
   1027F  LEU*     3.0    24.8    +      -       -      +
   1074F  LEU*     3.7    41.6    -      -       +      +
   1075F  GLY*     5.4     0.7    -      -       -      -
   1078F  LEU*     4.5     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS1024 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1020F  GLN      3.0     8.4    +      -       -      +
   1021F  LEU*     2.9    11.9    +      -       -      +
   1023F  LYS*     1.3    76.0    -      -       -      +
   1025F  MET*     1.3    64.2    +      -       -      +
   1027F  LEU*     2.9    22.5    +      -       -      +
   1028F  VAL*     3.1     8.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET1025 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1021F  LEU      3.0    12.9    +      -       -      +
   1022F  LEU*     3.7     9.4    -      -       -      +
   1024F  HIS*     1.3    75.4    -      -       -      +
   1026F  VAL*     1.3    64.3    +      -       -      +
   1028F  VAL*     2.9    11.2    +      -       -      +
   1029F  ALA*     2.9    20.6    +      -       -      +
   1152F  SER*     5.9     8.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1026 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1022F  LEU*     2.8    21.2    +      -       +      +
   1023F  LYS*     4.4     2.5    -      -       -      +
   1025F  MET*     1.3    73.6    -      -       -      +
   1027F  LEU*     1.3    62.1    +      -       -      +
   1029F  ALA*     2.9    20.8    +      -       +      +
   1030F  ILE*     3.1    17.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1027 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552F  ILE*     6.3     3.4    -      -       +      -
   1023F  LYS      3.0    16.6    +      -       -      +
   1024F  HIS*     2.9    17.8    +      -       -      +
   1026F  VAL*     1.3    76.5    -      -       -      +
   1028F  VAL*     1.3    58.6    +      -       -      +
   1030F  ILE*     5.0     1.5    -      -       -      +
   1031F  ASP*     3.3    20.8    +      -       -      +
   1067F  VAL*     5.7     1.4    -      -       -      +
   1071F  LEU*     4.1    33.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1028 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1024F  HIS      3.1     8.4    +      -       -      +
   1025F  MET*     2.9    11.2    +      -       -      +
   1027F  LEU*     1.3    76.2    -      -       -      +
   1029F  ALA*     1.3    51.6    -      -       -      +
   1031F  ASP*     2.9     8.6    +      -       -      +
   1032F  TYR*     2.2    40.5    +      -       +      +
   1283F  LEU*     6.2     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1029 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1025F  MET      2.9    12.0    +      -       -      +
   1026F  VAL*     2.9    14.4    +      -       +      +
   1028F  VAL*     1.3    75.2    -      -       -      +
   1030F  ILE*     1.3    51.8    +      -       -      +
   1032F  TYR*     2.8    12.7    -      -       -      +
   1033F  TRP*     2.6    33.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1030 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1026F  VAL      3.1    12.4    +      -       -      +
   1027F  LEU*     5.0     0.9    -      -       -      +
   1029F  ALA*     1.3    72.5    -      -       -      +
   1031F  ASP*     1.3    61.5    +      -       -      +
   1032F  TYR      3.0     0.9    -      -       -      -
   1033F  TRP*     2.9     7.4    +      -       -      +
   1034F  LEU*     2.5    41.9    +      -       +      +
   1067F  VAL*     4.1    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP1031 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1027F  LEU      3.3    16.9    +      -       -      +
   1028F  VAL*     2.9    11.6    +      -       -      +
   1030F  ILE*     1.3    78.0    -      -       -      +
   1032F  TYR*     1.3    59.1    +      -       -      +
   1035F  ALA*     3.3    27.2    -      -       +      +
   1036F  LYS*     3.9     2.9    +      -       -      +
   1067F  VAL*     4.7     8.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR1032 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1028F  VAL      2.2    27.2    +      -       -      +
   1029F  ALA*     2.8    19.5    -      -       -      +
   1031F  ASP*     1.3    71.3    -      -       -      +
   1033F  TRP*     1.3    56.4    +      -       -      +
   1036F  LYS*     3.2    19.1    -      -       -      +
   1279F  GLY*     4.2    16.9    -      -       -      +
   1283F  LEU*     4.1    26.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP1033 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1029F  ALA      2.6    15.7    +      -       -      +
   1030F  ILE*     2.9     6.7    +      -       -      +
   1032F  TYR*     1.3    74.4    -      -       -      +
   1034F  LEU*     1.3    58.3    +      -       -      +
   1035F  ALA      3.1     1.3    -      -       -      -
   1036F  LYS      2.9     2.1    +      -       -      -
   1037F  TRP*     2.2    45.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1034 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1030F  ILE*     2.5    21.6    +      -       +      +
   1033F  TRP*     1.3    74.6    -      -       -      +
   1035F  ALA*     1.3    60.5    +      -       -      +
   1037F  TRP*     4.0     6.4    -      -       -      +
   1038F  THR*     3.1    21.3    +      -       -      -
   1060F  ASP*     5.4     2.8    -      -       -      +
   1063F  VAL*     4.8    15.4    -      -       +      +
   1064F  TYR*     4.8    12.0    -      -       -      +
   1067F  VAL*     4.6    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1035 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571F  LEU*     5.1     3.4    -      -       -      +
   1030F  ILE      3.4     3.0    +      -       -      -
   1031F  ASP*     3.3    24.7    -      -       +      +
   1033F  TRP      3.1     0.4    -      -       -      -
   1034F  LEU*     1.3    75.7    -      -       -      +
   1036F  LYS*     1.3    61.4    +      -       -      +
   1038F  THR*     2.9    11.4    +      -       -      -
   1039F  ASP*     2.8    24.5    +      -       -      +
   1064F  TYR*     5.2    10.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1036 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573F  PRO*     5.8     7.2    -      -       +      -
   1031F  ASP      3.9     3.0    +      -       -      +
   1032F  TYR*     3.2    25.1    -      -       -      +
   1033F  TRP      2.9     4.4    +      -       -      -
   1035F  ALA*     1.3    77.0    -      -       -      +
   1037F  TRP*     1.3    50.7    +      -       -      +
   1039F  ASP*     3.1    14.0    +      -       +      +
   1040F  SER*     2.7    32.4    +      -       -      -
   1278F  ALA      5.3     2.5    -      -       -      +
   1279F  GLY*     5.0    13.2    -      -       -      -
   1282F  GLY*     6.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP1037 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1033F  TRP*     2.2    40.7    +      -       +      +
   1034F  LEU*     4.1     5.2    -      -       -      +
   1036F  LYS*     1.3    69.0    -      -       -      +
   1038F  THR*     1.3    56.3    +      -       -      +
   1040F  SER*     3.0    31.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR1038 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571F  LEU*     5.1     9.1    +      -       -      +
   1034F  LEU      3.1    14.6    +      -       -      -
   1035F  ALA*     2.9    12.1    +      -       -      -
   1037F  TRP*     1.3    72.2    -      -       -      +
   1039F  ASP*     1.3    65.0    +      -       -      +
   1040F  SER      2.9     8.7    +      -       -      +
   1060F  ASP*     4.8    22.7    -      -       -      -
   1061F  GLN*     5.8     1.6    -      -       -      -
   1064F  TYR*     6.0     3.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP1039 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571F  LEU*     3.5    31.5    -      -       +      +
    572F  SER      5.0     0.4    -      -       -      -
    573F  PRO*     4.7    15.9    -      -       +      -
   1035F  ALA      2.8    11.5    +      -       -      +
   1036F  LYS*     3.2    22.0    -      -       +      +
   1038F  THR*     1.3    71.1    -      -       -      +
   1040F  SER*     1.3    57.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1040 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036F  LYS      2.7    15.8    +      -       -      -
   1037F  TRP*     3.0    24.2    -      -       -      -
   1038F  THR*     2.9     7.2    -      -       -      +
   1039F  ASP*     1.3    77.0    -      -       -      +
   1278F  ALA*     6.3     3.1    -      -       -      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il