Contacts of the helix formed by residues 1164 - 1186 (chain A) 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 A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  LEU*     4.9     0.4    -      -       -      -
   1160A  ALA      3.6     7.7    +      -       -      +
   1161A  SER*     3.2    14.5    +      -       -      +
   1163A  ASN*     1.3    77.9    -      -       -      +
   1165A  GLN*     1.3    70.0    +      -       -      +
   1166A  SER*     3.2    12.0    +      -       -      -
   1167A  THR*     2.9    39.7    +      -       -      +
   1168A  SER*     3.3    22.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  LEU*     3.9    10.1    -      -       -      +
   1086A  ARG*     3.2    27.8    +      -       -      +
   1163A  ASN      3.7     3.2    +      -       -      -
   1164A  ASP*     1.3    76.0    -      -       -      +
   1166A  SER*     1.3    62.6    +      -       -      +
   1168A  SER*     3.8     0.9    -      -       -      -
   1169A  ASP*     2.9    63.7    +      -       -      +
     62B  PHE*     5.7     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1164A  ASP*     3.2     7.7    +      -       -      -
   1165A  GLN*     1.3    78.9    -      -       -      +
   1167A  THR*     1.3    61.0    +      -       -      +
   1169A  ASP*     4.3     5.6    -      -       -      -
   1170A  TYR*     2.9    43.9    +      -       -      +
      1B  MET*     4.1    36.7    -      -       -      +
     62B  PHE*     4.5     9.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR1167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1141A  THR*     3.3    30.1    +      -       +      +
   1145A  LEU*     4.1    22.7    -      -       +      -
   1148A  GLN*     5.6     0.9    -      -       -      +
   1161A  SER*     3.9    20.2    -      -       -      +
   1164A  ASP*     2.9    22.8    +      -       -      +
   1166A  SER*     1.3    74.6    +      -       -      +
   1168A  SER*     1.3    67.0    +      -       -      +
   1170A  TYR*     3.2     2.4    +      -       -      -
   1171A  LEU*     3.0    19.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  LEU*     4.2     2.0    -      -       -      -
   1094A  ARG*     2.4    39.2    +      -       -      +
   1145A  LEU*     5.6     1.3    -      -       -      -
   1161A  SER      4.4     1.5    +      -       -      -
   1162A  PHE*     3.2    38.8    +      -       -      +
   1164A  ASP      3.3    12.5    +      -       -      -
   1165A  GLN      3.8     1.1    -      -       -      -
   1167A  THR*     1.3    79.1    -      -       -      +
   1169A  ASP*     1.3    59.7    +      -       -      +
   1171A  LEU*     3.1    10.6    +      -       -      +
   1172A  VAL*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  LEU*     4.4     0.2    -      -       -      +
   1090A  ASN*     5.3     0.4    +      -       -      -
   1094A  ARG*     3.3    25.7    +      -       -      -
   1165A  GLN*     2.9    47.2    +      -       -      +
   1166A  SER      4.1     0.2    -      -       -      +
   1168A  SER*     1.3    76.4    -      -       -      +
   1170A  TYR*     1.3    56.3    +      -       -      +
   1172A  VAL*     3.1     7.6    +      -       -      +
   1173A  VAL*     2.9    34.0    +      -       -      +
   1211A  MET*     4.0    17.4    -      -       +      +
     62B  PHE*     3.8    29.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1137A  ASP*     3.9    30.3    +      -       +      -
   1138A  PHE*     3.5    36.3    -      +       +      +
   1141A  THR*     3.8    25.8    -      -       +      +
   1166A  SER*     2.9    35.7    +      -       -      +
   1167A  THR      3.5     4.7    -      -       -      +
   1169A  ASP*     1.3    74.9    -      -       -      +
   1171A  LEU*     1.3    64.1    +      -       -      +
   1173A  VAL*     3.2     5.0    +      -       -      +
   1174A  TYR*     3.0    21.7    +      -       -      +
      1B  MET*     3.9    29.6    +      -       +      +
      5B  ARG*     4.9     4.2    +      -       -      +
     60B  TYR      4.6     1.1    +      -       -      -
     61B  PRO*     3.9    18.1    -      -       +      +
     62B  PHE*     3.6    29.4    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU1171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093A  TYR      4.5     4.7    -      -       -      +
   1094A  ARG*     5.1     0.7    -      -       -      -
   1097A  GLY*     4.8     3.8    -      -       -      -
   1101A  LEU*     4.7     3.8    -      -       +      -
   1138A  PHE      5.3     0.9    -      -       -      -
   1141A  THR*     3.8     5.0    -      -       -      +
   1142A  PHE*     3.6    34.0    -      -       +      +
   1145A  LEU*     3.6    29.4    -      -       +      -
   1162A  PHE*     3.6    33.4    -      -       +      -
   1167A  THR      3.0    12.4    +      -       -      +
   1168A  SER*     3.2    11.4    -      -       -      +
   1170A  TYR*     1.3    76.7    -      -       -      +
   1172A  VAL*     1.3    70.1    +      -       +      +
   1174A  TYR*     3.1     8.6    +      -       -      +
   1175A  LEU*     2.9    42.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1090A  ASN*     3.7    30.5    -      -       +      -
   1093A  TYR*     4.0    10.7    -      -       +      +
   1094A  ARG*     3.8    43.5    -      -       -      +
   1168A  SER*     2.9    19.6    +      -       -      +
   1169A  ASP*     3.1     9.6    +      -       -      +
   1171A  LEU*     1.3    82.6    -      -       +      +
   1173A  VAL*     1.3    64.8    +      -       -      +
   1175A  LEU*     3.2     6.5    +      -       -      +
   1176A  ARG*     2.9    31.5    +      -       -      +
   1211A  MET*     3.8    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1138A  PHE*     3.7    38.1    -      -       +      -
   1169A  ASP      2.9    20.9    +      -       -      +
   1170A  TYR*     3.4     7.4    -      -       -      +
   1172A  VAL*     1.3    74.8    -      -       -      +
   1174A  TYR*     1.3    57.2    +      -       -      +
   1176A  ARG*     3.2     9.7    +      -       -      +
   1177A  LEU*     2.9    36.2    +      -       +      +
   1209A  GLU      5.7     1.6    -      -       -      +
   1211A  MET*     3.6    24.7    -      -       +      -
     62B  PHE*     4.5     5.4    -      -       +      -
     94B  SER*     5.6     0.7    -      -       -      +
     95B  PRO*     3.9    28.7    -      -       +      -
     96B  ALA*     4.9     2.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR1174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1121A  SER*     2.7    24.9    +      -       -      -
   1122A  LYS*     3.4    11.4    +      -       -      -
   1125A  LEU*     4.0    14.1    -      -       +      +
   1135A  ILE*     4.3     7.6    -      -       +      -
   1138A  PHE*     3.9    22.0    -      -       +      +
   1139A  HIS*     3.1    44.5    +      -       +      -
   1142A  PHE*     3.4    38.6    -      +       +      -
   1170A  TYR      3.0    13.2    +      -       -      +
   1171A  LEU      3.1     8.0    +      -       -      +
   1173A  VAL*     1.3    76.2    -      -       -      +
   1175A  LEU*     1.3    58.2    +      -       -      +
   1177A  LEU*     3.1    13.2    +      -       +      +
   1178A  LEU*     2.9    51.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1175 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093A  TYR*     3.4    43.5    -      -       +      +
   1096A  PHE*     4.8     5.4    -      -       +      -
   1097A  GLY*     4.1    11.9    -      -       -      +
   1142A  PHE*     4.4    15.3    -      -       +      -
   1171A  LEU*     2.9    37.3    +      -       +      +
   1172A  VAL      3.2     6.7    +      -       -      +
   1174A  TYR*     1.3    75.9    -      -       -      +
   1176A  ARG*     1.3    53.3    +      -       -      +
   1178A  LEU*     3.4    13.3    +      -       +      +
   1179A  THR*     2.6    37.5    +      -       -      -
   1223A  LEU*     3.7    23.9    -      -       +      +
   1227A  LEU*     4.2    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1176 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1089A  GLY      3.5     8.7    +      -       -      -
   1090A  ASN*     2.7    30.3    +      -       -      -
   1093A  TYR*     3.3    43.5    +      -       +      -
   1172A  VAL*     2.9    21.2    +      -       -      +
   1173A  VAL*     3.4     9.4    -      -       -      +
   1175A  LEU*     1.3    77.3    -      -       -      +
   1177A  LEU*     1.3    58.4    +      -       +      +
   1179A  THR*     3.2     8.4    +      -       -      -
   1180A  SER*     2.9    26.5    +      -       -      -
   1207A  GLU      4.4     1.6    +      -       -      -
   1208A  VAL*     3.1    42.4    +      -       -      +
   1209A  GLU*     3.9    12.3    -      -       -      +
   1210A  PRO      3.6    18.0    +      -       -      -
   1211A  MET*     4.0    11.3    -      -       -      +
   1212A  CYS      3.6     4.0    -      -       -      +
   1213A  LYS      2.8    29.2    +      -       -      -
   1214A  GLU      5.0     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1125A  LEU*     3.7    17.8    -      -       +      +
   1130A  PHE*     3.8    29.6    -      -       +      -
   1135A  ILE*     3.9    24.0    -      -       +      -
   1138A  PHE*     4.5     5.8    -      -       +      -
   1173A  VAL*     2.9    27.3    +      -       +      +
   1174A  TYR*     3.1    17.4    +      -       +      +
   1176A  ARG*     1.3    74.7    -      -       +      +
   1178A  LEU*     1.3    60.3    +      -       -      +
   1180A  SER*     3.4     3.6    +      -       -      -
   1181A  GLY*     2.9    26.3    +      -       -      -
   1209A  GLU*     4.4    15.0    -      -       +      +
     94B  SER*     4.8     2.7    -      -       -      +
     96B  ALA*     3.7    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1121A  SER*     3.6    31.9    -      -       -      +
   1125A  LEU*     3.9    17.3    -      -       +      -
   1142A  PHE*     4.4     2.7    -      -       +      -
   1174A  TYR*     2.9    41.2    +      -       +      +
   1175A  LEU*     3.6    21.3    -      -       +      +
   1177A  LEU*     1.3    72.0    -      -       -      +
   1179A  THR*     1.3    67.5    +      -       -      +
   1181A  GLY*     3.1     1.6    +      -       -      -
   1182A  TYR*     2.9    26.3    +      -       -      +
   1185A  ARG*     5.4     1.0    +      -       -      +
   1223A  LEU*     4.2     6.3    -      -       +      -
   1226A  ALA*     4.2    12.8    -      -       +      +
   1227A  LEU*     3.7    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1093A  TYR*     3.4    20.5    -      -       -      +
   1175A  LEU      2.6    21.1    +      -       -      -
   1176A  ARG*     3.3    10.3    -      -       -      -
   1178A  LEU*     1.3    76.8    -      -       -      +
   1180A  SER*     1.3    57.6    +      -       -      +
   1182A  TYR*     3.5     0.7    +      -       -      -
   1183A  LEU*     2.9    37.5    +      -       +      +
   1208A  VAL*     4.1    12.3    -      -       +      -
   1219A  HIS*     3.7    32.3    -      -       +      +
   1222A  ALA*     3.9    14.5    -      -       +      +
   1223A  LEU*     3.7    15.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130A  PHE*     4.2     2.3    -      -       -      -
   1176A  ARG      2.9    13.4    +      -       -      -
   1177A  LEU*     3.7     4.9    -      -       -      -
   1179A  THR*     1.3    77.1    -      -       -      +
   1181A  GLY*     1.3    58.0    +      -       -      +
   1183A  LEU*     3.3     1.4    +      -       -      +
   1184A  GLN*     2.9    44.4    +      -       -      +
   1204A  CYS*     3.2    17.0    -      -       -      +
   1208A  VAL*     3.7     9.2    -      -       -      +
   1209A  GLU*     2.9    42.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY1181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1125A  LEU*     3.9    11.7    -      -       -      -
   1128A  GLN*     2.8    41.8    +      -       -      -
   1130A  PHE*     4.4     6.0    -      -       -      -
   1177A  LEU      2.9    15.7    +      -       -      -
   1178A  LEU      3.1     3.5    +      -       -      -
   1180A  SER*     1.3    76.9    -      -       -      +
   1182A  TYR*     1.3    56.3    +      -       -      +
   1184A  GLN*     3.2     2.2    +      -       -      -
   1185A  ARG*     2.9    13.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR1182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1178A  LEU      2.9    14.5    +      -       -      +
   1179A  THR      4.2     0.9    -      -       -      +
   1181A  GLY*     1.3    75.9    -      -       -      +
   1183A  LEU*     1.3    63.2    +      -       -      +
   1185A  ARG*     3.9    29.3    -      -       -      +
   1186A  GLU*     3.1    54.3    +      -       +      +
   1190A  PHE*     3.8    22.7    -      +       -      -
   1222A  ALA*     3.7    18.4    -      -       -      +
   1225A  GLN*     3.5    46.4    +      -       +      +
   1226A  ALA*     3.8    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1179A  THR*     2.9    32.0    +      -       +      +
   1180A  SER      3.4     5.2    -      -       -      +
   1181A  GLY      3.2     0.2    -      -       -      -
   1182A  TYR*     1.3    79.3    -      -       -      +
   1184A  GLN*     1.3    57.2    +      -       -      +
   1187A  SER*     3.2    25.5    +      -       -      -
   1190A  PHE*     3.6    46.4    -      -       +      -
   1200A  VAL*     3.6    10.3    -      -       +      +
   1203A  PHE*     4.2    15.0    -      -       +      -
   1204A  CYS*     3.6    20.9    -      -       -      -
   1208A  VAL*     4.1    17.9    -      -       +      -
   1218A  ILE*     4.1    12.8    -      -       +      +
   1219A  HIS*     5.3     2.5    -      -       -      -
   1222A  ALA*     3.7    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128A  GLN*     3.9    12.0    -      -       +      +
   1130A  PHE*     4.1    13.7    -      -       -      -
   1180A  SER*     2.9    37.8    +      -       -      +
   1181A  GLY*     3.9     3.4    -      -       -      +
   1183A  LEU*     1.3    73.6    -      -       -      +
   1185A  ARG*     1.3    66.3    +      -       -      +
   1186A  GLU      3.4     0.2    -      -       -      -
   1187A  SER*     3.1    23.7    +      -       -      -
   1200A  VAL*     4.2     2.7    -      -       +      -
   1201A  LYS*     3.4    46.0    -      -       +      +
   1204A  CYS*     3.8    15.7    -      -       -      +
   1209A  GLU*     3.6    10.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1124A  ASP*     3.9    29.5    +      -       -      +
   1125A  LEU*     5.2     2.4    -      -       -      +
   1128A  GLN*     2.9    44.8    +      -       -      +
   1178A  LEU*     5.4     1.2    +      -       -      +
   1181A  GLY*     2.9    10.9    +      -       -      +
   1182A  TYR*     3.7    40.9    -      -       -      +
   1183A  LEU      3.3     0.2    -      -       -      -
   1184A  GLN*     1.3    79.3    -      -       -      +
   1186A  GLU*     1.3    71.8    +      -       +      +
   1187A  SER*     3.2     3.3    +      -       -      -
   1188A  LYS*     5.7     3.1    -      -       -      +
   1226A  ALA*     5.5     5.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1182A  TYR*     3.1    45.3    +      -       +      +
   1183A  LEU      3.8     2.0    -      -       -      -
   1185A  ARG*     1.3    87.5    -      -       +      +
   1187A  SER*     1.3    52.2    +      -       -      +
   1188A  LYS*     3.2     5.1    -      -       -      +
   1189A  PHE*     2.6    43.8    +      -       +      +
   1190A  PHE*     3.6    23.0    +      -       +      -
----------------------------------------------------------
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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