Contacts of the helix formed by residues 1164 - 1186 (chain C) in PDB entry 4DDG


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 ASP1164 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047C  LEU*     4.5     0.6    -      -       -      +
   1160C  ALA      3.6     7.5    +      -       -      +
   1161C  SER*     3.2    13.7    +      -       -      +
   1163C  ASN*     1.3    79.1    -      -       -      +
   1165C  GLN*     1.3    68.0    +      -       -      +
   1166C  SER*     3.2    11.2    +      -       -      -
   1167C  THR*     2.9    39.6    +      -       -      +
   1168C  SER*     3.3    21.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1165 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  PHE*     6.0     2.0    -      -       +      -
   1047C  LEU*     3.9    10.8    -      -       -      +
   1086C  ARG*     3.2    27.8    +      -       -      +
   1094C  ARG*     5.7     0.2    -      -       -      +
   1163C  ASN      3.7     3.0    +      -       -      -
   1164C  ASP*     1.3    75.5    -      -       -      +
   1166C  SER*     1.3    63.1    +      -       -      +
   1168C  SER*     3.8     1.0    -      -       -      -
   1169C  ASP*     2.9    62.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1166 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.5    42.8    -      -       -      +
     62A  PHE*     4.5     7.4    -      -       -      -
   1164C  ASP*     3.2     7.8    +      -       -      -
   1165C  GLN*     1.3    78.3    -      -       -      +
   1167C  THR*     1.3    61.4    +      -       -      +
   1169C  ASP*     4.3     6.5    -      -       -      -
   1170C  TYR*     2.9    41.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1167 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1141C  THR*     3.3    29.4    +      -       +      +
   1145C  LEU*     4.1    23.6    -      -       +      -
   1148C  GLN*     5.6     1.1    -      -       -      +
   1161C  SER*     3.9    19.5    -      -       -      +
   1162C  PHE*     5.9     0.2    -      -       -      -
   1164C  ASP*     2.9    23.3    +      -       -      +
   1166C  SER*     1.3    74.2    +      -       -      +
   1168C  SER*     1.3    67.3    +      -       -      +
   1170C  TYR*     3.2     2.6    +      -       -      -
   1171C  LEU*     3.0    19.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1168 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047C  LEU*     4.2     2.0    -      -       -      -
   1094C  ARG*     2.4    39.4    +      -       -      +
   1145C  LEU*     5.7     0.9    -      -       -      -
   1161C  SER      4.4     1.3    +      -       -      -
   1162C  PHE*     3.2    39.6    +      -       -      +
   1164C  ASP      3.3    11.9    +      -       -      -
   1165C  GLN      3.8     1.8    -      -       -      -
   1167C  THR*     1.3    79.8    -      -       -      +
   1169C  ASP*     1.3    57.9    +      -       -      +
   1171C  LEU*     3.1    10.9    +      -       -      +
   1172C  VAL*     2.9    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1169 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  PHE*     3.7    29.4    -      -       +      -
   1047C  LEU*     4.4     0.5    -      -       -      +
   1090C  ASN*     5.3     0.4    +      -       -      -
   1094C  ARG*     3.3    25.9    +      -       -      -
   1165C  GLN*     2.9    45.5    +      -       -      +
   1166C  SER      4.1     0.2    -      -       -      +
   1168C  SER*     1.3    75.8    -      -       -      +
   1170C  TYR*     1.3    56.3    +      -       -      +
   1172C  VAL*     3.1     8.0    +      -       -      +
   1173C  VAL*     2.9    34.1    +      -       -      +
   1211C  MET*     4.0    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR1170 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.4    39.3    +      -       +      +
      5A  ARG*     4.8     2.4    -      -       -      +
     60A  TYR      4.0     1.3    +      -       -      -
     61A  PRO*     3.7    18.3    -      -       +      +
     62A  PHE*     3.1    32.8    -      +       -      -
   1137C  ASP*     3.9    27.8    +      -       +      +
   1138C  PHE*     3.5    34.4    -      +       +      +
   1141C  THR*     3.8    26.7    -      -       +      +
   1166C  SER*     2.9    33.2    +      -       -      +
   1167C  THR      3.5     4.0    -      -       -      +
   1169C  ASP*     1.3    74.5    -      -       -      +
   1171C  LEU*     1.3    64.0    +      -       -      +
   1173C  VAL*     3.2     4.5    +      -       -      +
   1174C  TYR*     3.0    20.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1171 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093C  TYR      4.5     4.9    -      -       -      +
   1094C  ARG*     5.1     0.9    -      -       -      -
   1097C  GLY*     4.8     3.4    -      -       -      -
   1101C  LEU*     4.7     3.8    -      -       +      -
   1138C  PHE      5.3     0.9    -      -       -      -
   1141C  THR*     3.8     5.0    -      -       -      +
   1142C  PHE*     3.6    33.9    -      -       +      +
   1145C  LEU*     3.6    28.3    -      -       +      -
   1162C  PHE*     3.6    34.1    -      -       +      -
   1167C  THR      3.0    11.8    +      -       -      +
   1168C  SER*     3.2    11.2    -      -       -      +
   1170C  TYR*     1.3    76.7    -      -       -      +
   1172C  VAL*     1.3    70.2    +      -       +      +
   1174C  TYR*     3.1     8.4    +      -       -      +
   1175C  LEU*     2.9    42.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1172 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1090C  ASN*     3.7    31.2    -      -       +      -
   1093C  TYR*     4.0    10.3    -      -       +      +
   1094C  ARG*     3.8    43.1    -      -       -      +
   1168C  SER*     2.9    19.4    +      -       -      +
   1169C  ASP*     3.1     9.4    +      -       -      +
   1171C  LEU*     1.3    82.4    -      -       +      +
   1173C  VAL*     1.3    63.4    +      -       -      +
   1175C  LEU*     3.2     6.8    +      -       -      +
   1176C  ARG*     2.9    31.7    +      -       -      +
   1211C  MET*     3.8    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1173 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  PHE*     3.9    20.4    -      -       +      -
     94A  SER*     5.9     0.2    -      -       -      +
     95A  PRO*     3.8    27.6    -      -       +      -
   1138C  PHE*     3.7    28.7    -      -       +      -
   1169C  ASP      2.9    18.8    +      -       -      +
   1170C  TYR      3.4     7.6    -      -       -      +
   1172C  VAL*     1.3    76.4    -      -       -      +
   1174C  TYR*     1.3    58.0    +      -       -      +
   1176C  ARG*     3.2     9.6    +      -       -      +
   1177C  LEU*     2.9    36.0    +      -       +      +
   1209C  GLU      5.7     1.6    -      -       -      +
   1211C  MET*     3.6    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1174 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1121C  SER*     2.7    25.0    +      -       -      -
   1122C  LYS*     3.4    11.6    +      -       +      -
   1125C  LEU*     4.0    14.8    -      -       +      +
   1135C  ILE*     4.3     7.0    -      -       +      -
   1138C  PHE*     3.9    21.5    -      -       +      +
   1139C  HIS*     3.1    44.5    +      -       +      -
   1142C  PHE*     3.4    39.7    -      +       +      -
   1170C  TYR      3.0    13.0    +      -       -      +
   1171C  LEU*     3.1     7.4    +      -       -      +
   1173C  VAL*     1.3    76.2    -      -       -      +
   1175C  LEU*     1.3    59.3    +      -       -      +
   1177C  LEU*     3.1    12.4    +      -       +      +
   1178C  LEU*     2.9    52.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1175 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093C  TYR*     3.4    43.3    -      -       +      +
   1096C  PHE*     4.8     5.2    -      -       +      -
   1097C  GLY*     4.1    12.1    -      -       -      +
   1142C  PHE*     4.4    14.1    -      -       +      -
   1171C  LEU*     2.9    37.8    +      -       +      +
   1172C  VAL      3.6     6.7    -      -       -      +
   1174C  TYR*     1.3    74.8    -      -       -      +
   1176C  ARG*     1.3    54.7    +      -       -      +
   1178C  LEU*     3.4    13.9    +      -       +      +
   1179C  THR*     2.6    37.4    +      -       -      -
   1223C  LEU*     3.7    24.3    -      -       +      +
   1227C  LEU*     4.2    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1176 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1089C  GLY      3.5     8.7    +      -       -      -
   1090C  ASN*     2.7    30.3    +      -       -      -
   1093C  TYR*     3.3    42.5    +      -       +      -
   1172C  VAL*     2.9    22.3    +      -       -      +
   1173C  VAL*     3.2     9.4    +      -       -      +
   1175C  LEU*     1.3    76.0    -      -       -      +
   1177C  LEU*     1.3    57.1    +      -       +      +
   1179C  THR*     3.2     8.6    +      -       -      -
   1180C  SER*     2.9    25.8    +      -       -      -
   1207C  GLU      4.4     1.4    +      -       -      -
   1208C  VAL*     3.1    41.7    +      -       -      +
   1209C  GLU*     3.9    11.9    -      -       -      +
   1210C  PRO      3.6    18.7    +      -       -      -
   1211C  MET*     4.0    11.5    -      -       -      +
   1212C  CYS      3.6     4.2    -      -       -      +
   1213C  LYS      2.8    29.4    +      -       -      -
   1214C  GLU      5.0     0.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1177 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  SER*     4.7     3.1    -      -       -      +
     96A  ALA*     3.9    22.7    -      -       +      -
   1125C  LEU*     3.7    18.5    -      -       +      +
   1130C  PHE*     3.8    30.1    -      -       +      -
   1135C  ILE*     3.9    31.0    -      -       +      -
   1138C  PHE*     4.5     6.7    -      -       +      -
   1173C  VAL*     2.9    29.0    +      -       +      +
   1174C  TYR*     3.1    17.0    +      -       +      +
   1176C  ARG*     1.3    74.8    -      -       +      +
   1178C  LEU*     1.3    60.2    +      -       -      +
   1180C  SER*     3.4     3.7    +      -       -      -
   1181C  GLY*     2.9    25.8    +      -       -      -
   1209C  GLU*     4.4    14.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1178 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1121C  SER*     3.6    32.8    -      -       -      +
   1125C  LEU*     3.9    16.8    -      -       +      +
   1142C  PHE*     4.4     2.9    -      -       +      -
   1174C  TYR*     2.9    40.9    +      -       +      +
   1175C  LEU*     3.6    20.0    -      -       +      +
   1177C  LEU*     1.3    72.5    -      -       -      +
   1179C  THR*     1.3    67.4    +      -       -      +
   1181C  GLY*     3.1     1.0    +      -       -      -
   1182C  TYR*     2.9    26.7    +      -       -      +
   1185C  ARG*     5.4     1.2    +      -       -      +
   1223C  LEU*     4.2     6.7    -      -       +      -
   1226C  ALA*     4.2    12.2    -      -       +      +
   1227C  LEU*     3.7    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1179 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093C  TYR*     3.4    20.1    -      -       +      +
   1175C  LEU      2.6    20.5    +      -       -      -
   1176C  ARG*     3.3    10.5    -      -       -      -
   1178C  LEU*     1.3    77.8    -      -       -      +
   1180C  SER*     1.3    57.5    +      -       -      +
   1182C  TYR*     3.9     0.9    -      -       -      -
   1183C  LEU*     2.9    37.1    +      -       +      +
   1208C  VAL*     4.1    13.2    -      -       +      -
   1219C  HIS*     3.7    33.2    -      -       +      +
   1222C  ALA*     3.9    13.8    -      -       +      +
   1223C  LEU*     3.7    17.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1180 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130C  PHE*     4.2     1.7    -      -       -      -
   1176C  ARG      2.9    14.2    +      -       -      -
   1177C  LEU*     3.7     4.7    -      -       -      -
   1179C  THR*     1.3    76.2    -      -       -      +
   1181C  GLY*     1.3    57.1    +      -       -      +
   1183C  LEU*     3.3     1.8    +      -       -      +
   1184C  GLN*     2.9    44.9    +      -       -      +
   1204C  CYS*     3.2    17.7    -      -       -      +
   1208C  VAL*     3.7     8.5    -      -       -      +
   1209C  GLU*     2.9    42.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY1181 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1125C  LEU*     3.9    12.3    -      -       -      -
   1128C  GLN*     2.8    40.9    +      -       -      -
   1130C  PHE*     4.4     6.0    -      -       -      -
   1177C  LEU      2.9    15.5    +      -       -      -
   1178C  LEU      3.1     3.1    +      -       -      -
   1180C  SER*     1.3    76.2    -      -       -      +
   1182C  TYR*     1.3    57.4    +      -       -      +
   1184C  GLN*     3.2     2.4    +      -       -      -
   1185C  ARG*     2.9    13.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1182 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1178C  LEU      2.9    14.5    +      -       -      +
   1179C  THR      4.2     0.9    -      -       -      +
   1181C  GLY*     1.3    74.5    -      -       -      +
   1183C  LEU*     1.3    63.6    +      -       -      +
   1185C  ARG*     3.9    30.0    -      -       -      +
   1186C  GLU*     3.1    54.1    +      -       +      +
   1190C  PHE*     3.8    23.3    -      +       -      -
   1222C  ALA*     3.7    17.3    -      -       -      +
   1225C  GLN*     3.5    45.9    +      -       +      +
   1226C  ALA*     3.8    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1183 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1179C  THR*     2.9    33.5    +      -       +      +
   1180C  SER      3.4     5.2    -      -       -      +
   1181C  GLY      3.2     0.2    -      -       -      -
   1182C  TYR*     1.3    78.1    -      -       -      +
   1184C  GLN*     1.3    57.0    +      -       -      +
   1187C  SER*     3.2    25.3    +      -       -      -
   1190C  PHE*     3.6    46.9    -      -       +      -
   1200C  VAL*     3.6     9.9    -      -       +      +
   1203C  PHE*     4.2    14.6    -      -       +      -
   1204C  CYS*     3.6    21.5    -      -       -      -
   1208C  VAL*     4.1    18.4    -      -       +      -
   1218C  ILE*     4.1    12.3    -      -       +      +
   1219C  HIS*     5.3     2.5    -      -       -      -
   1222C  ALA*     3.7    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1184 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128C  GLN*     3.9    13.0    -      -       +      +
   1130C  PHE*     4.1    13.1    -      -       -      -
   1180C  SER*     2.9    37.8    +      -       -      +
   1181C  GLY      3.9     2.9    -      -       -      +
   1183C  LEU*     1.3    74.6    -      -       -      +
   1185C  ARG*     1.3    65.2    +      -       -      +
   1187C  SER*     3.1    23.1    +      -       -      -
   1200C  VAL*     4.2     2.9    -      -       +      -
   1201C  LYS*     3.4    45.1    -      -       +      +
   1204C  CYS*     3.8    16.0    -      -       -      +
   1209C  GLU*     3.6    10.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1185 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1124C  ASP*     3.9    29.0    +      -       -      +
   1125C  LEU*     5.2     2.0    -      -       -      +
   1128C  GLN*     2.9    44.8    +      -       -      +
   1178C  LEU*     5.4     1.2    +      -       -      +
   1181C  GLY*     2.9    10.9    +      -       -      +
   1182C  TYR*     3.7    40.9    -      -       -      +
   1183C  LEU      3.3     0.2    -      -       -      -
   1184C  GLN*     1.3    80.5    -      -       -      +
   1186C  GLU*     1.3    73.6    +      -       +      +
   1187C  SER*     3.2     2.8    +      -       -      -
   1188C  LYS*     5.7     2.9    -      -       -      +
   1226C  ALA*     5.5     5.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1186 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1182C  TYR*     3.1    45.5    +      -       +      +
   1183C  LEU      3.8     1.8    -      -       -      -
   1185C  ARG*     1.3    87.2    -      -       +      +
   1187C  SER*     1.3    52.0    +      -       -      +
   1188C  LYS*     2.9     5.3    +      -       -      +
   1189C  PHE*     2.6    44.3    +      -       +      +
   1190C  PHE*     3.6    22.3    +      -       +      -
----------------------------------------------------------
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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