Contacts of the helix formed by residues 1187 - 1208 (chain A) in PDB entry 1VDV


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 ASN1187 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575A  ARG      3.4     8.7    -      -       -      +
    577A  LEU      2.7    31.8    +      -       -      +
   1044A  THR*     4.2     2.6    -      -       -      +
   1045A  LYS*     4.5     7.2    -      -       -      +
   1048A  GLN*     3.0    25.0    +      -       -      +
   1185A  SER*     3.0     6.1    +      -       -      -
   1186A  LEU*     1.3    83.7    -      -       -      +
   1188A  PRO*     1.3    67.4    -      -       -      +
   1189A  ALA*     3.0    13.0    +      -       -      +
   1190A  ILE*     3.0    34.9    +      -       +      +
   1191A  ASP*     3.0    22.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO1188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  LEU*     4.3     2.0    -      -       -      -
    560A  PHE*     3.5    45.5    -      -       +      -
    574A  GLY      3.2    28.9    -      -       -      +
    575A  ARG      3.6     4.3    -      -       -      +
    576A  PRO*     3.9     9.0    -      -       +      -
   1185A  SER*     3.0    11.6    -      -       -      +
   1187A  ASN*     1.3    83.2    -      -       -      +
   1189A  ALA*     1.3    56.5    +      -       -      +
   1191A  ASP*     4.4     0.2    -      -       +      -
   1192A  ILE*     2.9    35.3    +      -       -      +
   1243A  LEU*     3.8    15.3    -      -       +      -
   5017A  GOL      3.7     7.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  HIS*     3.3    50.8    -      -       +      +
    195A  LEU*     3.7    13.5    -      -       +      +
    576A  PRO*     3.6    14.6    -      -       +      +
    577A  LEU      4.6     1.1    -      -       -      +
   1187A  ASN*     3.0     9.7    +      -       -      +
   1188A  PRO*     1.3    80.3    -      -       -      +
   1190A  ILE*     1.3    65.6    +      -       +      +
   1192A  ILE*     4.0     2.4    -      -       -      +
   1193A  GLY*     3.1    19.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  HIS*     5.3     4.0    -      -       +      +
    112A  GLN*     5.5     3.4    +      -       +      -
    577A  LEU      4.2     2.2    -      -       -      +
    578A  PRO*     4.9     0.4    -      -       +      -
    579A  HIS*     4.2    34.8    -      -       +      +
   1039A  GLY      6.1     0.2    -      -       -      +
   1040A  GLN      3.1    27.8    -      -       -      +
   1041A  GLY*     4.5    10.3    -      -       -      +
   1044A  THR*     5.0     5.6    -      -       +      -
   1045A  LYS*     3.8    20.4    -      -       +      +
   1187A  ASN*     3.0    33.7    +      -       +      +
   1189A  ALA*     1.3    78.6    -      -       +      +
   1191A  ASP*     1.3    57.2    +      -       -      +
   1193A  GLY*     3.1     3.3    +      -       -      -
   1194A  GLN*     2.9    32.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP1191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1045A  LYS*     2.7    31.1    +      -       -      -
   1182A  VAL*     4.3    11.7    -      -       +      +
   1185A  SER*     2.6    34.9    +      -       -      +
   1186A  LEU      4.0     4.3    +      -       -      -
   1187A  ASN      3.0    14.4    +      -       -      +
   1188A  PRO*     4.1     2.5    -      -       +      +
   1190A  ILE*     1.3    73.2    -      -       -      +
   1192A  ILE*     1.3    61.7    +      -       -      +
   1194A  GLN*     3.1     7.0    +      -       -      +
   1195A  VAL*     2.9    32.8    +      -       -      +
   1243A  LEU*     4.6     8.3    -      -       +      -
   1256A  SER*     6.0     0.5    -      -       -      -
   1257A  LYS      5.2     2.6    -      -       -      +
   1259A  VAL*     3.3    22.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154A  ARG*     4.3     0.7    -      -       -      +
    195A  LEU*     3.9    20.9    -      -       +      -
    558A  GLN*     3.7    37.2    -      -       +      -
    559A  LEU      4.6     2.7    -      -       -      +
    560A  PHE*     4.3    13.2    -      -       +      -
   1188A  PRO      2.9    21.9    +      -       -      +
   1189A  ALA      4.0     2.5    -      -       -      +
   1191A  ASP*     1.3    75.3    -      -       -      +
   1193A  GLY*     1.3    58.6    +      -       -      +
   1195A  VAL*     3.1     8.3    +      -       -      +
   1196A  GLU*     2.8    52.0    +      -       +      +
   1241A  VAL*     4.3    13.7    -      -       +      +
   1243A  LEU*     4.0    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  HIS*     6.1     1.3    -      -       -      -
    112A  GLN*     3.2    26.1    +      -       -      -
    151A  THR      4.2     2.1    -      -       -      +
    155A  PRO*     6.2     2.0    -      -       -      -
   1189A  ALA      3.1    15.1    +      -       -      -
   1190A  ILE*     3.4     5.4    -      -       -      -
   1191A  ASP      3.1     0.2    -      -       -      -
   1192A  ILE*     1.3    78.8    -      -       -      +
   1194A  GLN*     1.3    54.4    +      -       -      +
   1196A  GLU*     4.0     9.0    -      -       -      +
   1197A  GLY*     2.8    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  GLN*     3.2    28.1    +      -       -      -
    912A  ARG*     3.2     9.2    +      -       -      +
   1040A  GLN*     3.5    20.6    +      -       -      +
   1045A  LYS*     5.5     0.4    -      -       -      +
   1190A  ILE*     2.9    25.5    +      -       +      +
   1191A  ASP      3.1     8.0    +      -       -      +
   1193A  GLY*     1.3    73.4    -      -       -      +
   1195A  VAL*     1.3    60.2    +      -       -      +
   1198A  ALA*     2.9    34.0    +      -       -      +
   1259A  VAL*     3.8    32.5    -      -       +      +
   1260A  GLY*     3.6    10.0    -      -       -      -
   1263A  PRO*     4.5     0.8    -      -       -      +
   3003A  MTE      2.7    38.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1178A  ILE*     4.0    28.7    -      -       +      -
   1180A  MET*     4.0    26.7    -      -       +      -
   1191A  ASP      2.9    20.1    +      -       -      +
   1192A  ILE*     3.1    11.4    +      -       -      +
   1194A  GLN*     1.3    76.9    -      -       -      +
   1196A  GLU*     1.3    58.7    +      -       -      +
   1199A  PHE*     3.0    31.4    +      -       -      +
   1241A  VAL*     3.9    20.0    -      -       +      -
   1243A  LEU*     4.6     8.3    -      -       +      -
   1259A  VAL*     4.0    11.0    -      -       +      -
   1263A  PRO*     3.9    18.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  THR      3.8    12.6    -      -       -      +
    152A  GLY*     4.8     1.1    -      -       -      -
    154A  ARG*     2.8    56.7    +      -       -      +
    155A  PRO*     3.8    10.0    -      -       -      +
    558A  GLN*     4.6     1.9    -      -       -      +
   1178A  ILE*     5.8     0.2    -      -       -      -
   1192A  ILE*     2.8    31.9    +      -       -      +
   1193A  GLY*     4.0     4.3    -      -       -      +
   1195A  VAL*     1.3    71.6    -      -       -      +
   1197A  GLY*     1.3    62.6    +      -       -      +
   1199A  PHE*     3.7     5.1    -      -       -      +
   1200A  VAL*     3.1    29.6    +      -       -      +
   1239A  PHE*     4.3    19.5    -      -       +      +
   1241A  VAL*     3.8    27.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY1197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  ARG      4.7     1.4    -      -       -      +
    150A  CYS      3.0    27.5    -      -       -      +
    151A  THR      3.8     7.9    +      -       -      -
    152A  GLY      4.1     1.8    -      -       -      -
    912A  ARG*     4.0     7.9    -      -       -      -
   1193A  GLY      2.8    17.8    +      -       -      -
   1194A  GLN      4.0     0.4    -      -       -      -
   1196A  GLU*     1.3    74.4    -      -       -      +
   1198A  ALA*     1.3    60.2    +      -       -      +
   1200A  VAL*     3.3     4.0    +      -       -      +
   1201A  GLN*     3.1    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    912A  ARG*     3.5    30.5    -      -       -      +
   1194A  GLN      2.9    19.1    +      -       -      +
   1197A  GLY*     1.3    75.7    -      -       -      +
   1199A  PHE*     1.3    63.3    +      -       -      +
   1201A  GLN*     3.2     2.6    +      -       -      +
   1202A  GLY      3.0    18.7    +      -       -      -
   1260A  GLY      3.9     5.2    -      -       -      +
   1263A  PRO*     3.8     9.0    -      -       +      -
   1264A  LEU*     3.4    35.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1158A  ALA*     4.5     1.3    -      -       +      -
   1160A  SER*     3.9     5.6    -      -       -      -
   1176A  THR*     3.5    38.1    -      -       +      -
   1178A  ILE*     3.7    20.9    -      -       +      -
   1195A  VAL*     3.0    19.9    +      -       +      +
   1196A  GLU*     3.7     4.3    -      -       -      +
   1197A  GLY      3.3     0.2    -      -       -      -
   1198A  ALA*     1.3    77.4    -      -       -      +
   1200A  VAL*     1.3    61.7    +      -       +      +
   1202A  GLY*     3.3     1.9    +      -       -      -
   1203A  LEU*     2.9    42.2    +      -       +      +
   1236A  PRO*     4.4     4.9    -      -       +      -
   1239A  PHE*     3.7    21.3    -      +       -      -
   1263A  PRO*     4.1     9.6    +      -       +      +
   1264A  LEU      4.5     1.6    -      -       -      -
   1266A  LEU*     3.2    28.5    -      -       +      -
   1267A  GLY*     3.6    19.3    -      -       -      -
   1269A  SER*     3.8     4.9    -      -       -      -
   1270A  VAL*     4.0    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  CYS      5.8     1.1    -      -       -      +
    149A  ARG      6.2     0.2    -      -       -      +
    152A  GLY*     3.5    31.0    -      -       -      +
    153A  TYR*     4.8     5.4    -      -       +      -
   1196A  GLU      3.1    18.3    +      -       -      +
   1197A  GLY      3.8     3.8    -      -       -      +
   1199A  PHE*     1.3    84.3    -      -       +      +
   1201A  GLN*     1.3    60.4    +      -       +      +
   1203A  LEU*     3.2    13.8    +      -       +      +
   1204A  GLY      2.9    22.7    +      -       -      -
   1230A  PRO*     3.3    32.4    -      -       +      +
   1235A  ILE*     4.2    15.9    -      -       +      -
   1236A  PRO*     5.5     0.2    -      -       +      -
   1239A  PHE*     4.5     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  ARG*     3.4    52.4    -      -       -      +
    739A  GLN*     3.1    14.8    +      -       -      +
    798A  PHE*     3.4    28.5    -      -       -      -
    911A  PHE*     3.8    14.0    -      -       -      -
    912A  ARG*     2.8    45.3    +      -       -      +
   1197A  GLY      3.1    14.0    +      -       -      +
   1198A  ALA      3.2     6.7    +      -       -      +
   1200A  VAL*     1.3    76.7    -      -       +      +
   1202A  GLY*     1.3    58.5    +      -       -      +
   1204A  GLY*     3.2     1.1    +      -       -      +
   1205A  LEU*     2.9    23.2    +      -       -      +
   1230A  PRO*     5.4     0.2    -      -       -      -
   1264A  LEU*     4.0     9.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1198A  ALA      3.0    10.3    +      -       -      -
   1199A  PHE      3.7     0.7    -      -       -      -
   1201A  GLN*     1.3    73.2    -      -       -      +
   1203A  LEU*     1.3    65.8    +      -       -      +
   1205A  LEU*     3.1     3.9    +      -       -      +
   1206A  PHE*     2.9    37.9    +      -       -      -
   1264A  LEU*     3.5    36.7    -      -       -      +
   1267A  GLY*     4.2     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1173A  ASN*     3.8    22.9    -      -       -      +
   1199A  PHE*     2.9    28.9    +      -       +      +
   1200A  VAL*     3.2    20.4    -      -       +      +
   1202A  GLY*     1.3    74.9    -      -       -      +
   1204A  GLY*     1.3    61.3    +      -       -      +
   1206A  PHE*     5.0     0.9    -      -       -      -
   1207A  THR*     2.6    41.3    +      -       +      +
   1208A  LEU*     6.4     1.1    -      -       +      -
   1230A  PRO*     5.2     5.4    -      -       +      -
   1234A  SER*     3.8    12.6    -      -       -      +
   1235A  ILE*     4.7     2.5    -      -       -      -
   1236A  PRO*     4.3     9.9    -      -       +      -
   1267A  GLY*     4.0     8.6    -      -       -      +
   1270A  VAL*     3.3    46.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1200A  VAL      2.9    10.7    +      -       -      -
   1201A  GLN      3.2     1.1    +      -       -      -
   1202A  GLY      3.1     0.6    -      -       -      -
   1203A  LEU*     1.3    74.9    -      -       -      +
   1205A  LEU*     1.3    64.0    +      -       -      +
   1208A  LEU*     3.0    12.2    +      -       -      -
   1209A  GLU*     2.9    49.5    +      -       -      -
   1230A  PRO*     3.6    16.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    736A  ILE*     4.4    10.5    -      -       +      -
    737A  GLY      3.9     9.3    -      -       -      +
    738A  GLY      3.6    21.9    -      -       -      +
    739A  GLN*     3.5    30.3    -      -       +      +
    839A  ARG*     3.6    34.8    -      -       -      +
    917A  PRO*     4.4     9.6    -      -       +      -
   1201A  GLN      2.9     8.7    +      -       -      +
   1202A  GLY*     3.1     8.0    +      -       -      +
   1204A  GLY*     1.3    75.8    -      -       -      +
   1206A  PHE*     1.3    88.2    +      -       +      +
   1209A  GLU*     4.0     7.2    -      -       -      +
   1264A  LEU*     4.5     3.4    -      -       +      -
   1298A  SER*     3.5     3.5    +      -       -      -
   1299A  PRO*     3.2    21.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    736A  ILE*     3.6    23.1    -      -       +      -
    917A  PRO*     4.3     6.5    -      -       +      -
    921A  PHE*     3.9    22.9    -      +       +      -
   1202A  GLY*     2.9    29.9    +      -       -      +
   1203A  LEU      4.4     0.2    -      -       -      +
   1205A  LEU*     1.3    95.0    -      -       +      +
   1207A  THR*     1.3    59.4    +      -       +      +
   1264A  LEU*     5.0     0.7    -      -       +      -
   1265A  PHE*     3.8    31.2    -      +       -      -
   1267A  GLY      3.7     3.8    -      -       -      +
   1268A  ALA*     3.5    34.8    -      -       +      -
   1271A  PHE*     3.3    23.8    -      -       +      -
   1298A  SER*     3.4    17.0    -      -       -      -
   1299A  PRO*     3.2     4.0    -      -       -      +
   1300A  ALA      2.7    26.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR1207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1171A  HIS*     4.5    14.1    -      -       -      -
   1173A  ASN*     5.7     0.3    +      -       -      -
   1203A  LEU*     2.6    31.6    +      -       +      +
   1204A  GLY      3.4     0.2    +      -       -      -
   1205A  LEU      3.7     0.2    +      -       -      -
   1206A  PHE*     1.3    90.7    -      -       +      +
   1208A  LEU*     1.3    77.6    +      -       -      +
   1270A  VAL*     4.0    15.7    -      -       +      -
   1271A  PHE*     4.4     6.3    -      -       -      +
   1274A  ILE*     3.8    24.2    -      -       +      -
   1299A  PRO*     4.2     4.7    -      -       -      -
   1300A  ALA*     3.3    23.6    -      -       +      +
   1301A  THR*     3.7     8.7    -      -       -      -
   1302A  PRO*     4.6     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  SER*     3.6    30.2    -      -       -      +
    426A  ARG*     4.0    18.8    -      -       +      -
   1171A  HIS*     5.0    11.4    -      -       +      -
   1203A  LEU*     6.5     0.7    -      -       +      -
   1204A  GLY*     3.0    10.3    +      -       -      +
   1207A  THR*     1.3    97.2    +      -       -      +
   1209A  GLU*     1.3    64.8    +      -       -      +
   1210A  GLU*     3.6     3.1    +      -       -      +
   1228A  LYS*     3.5    25.7    +      -       +      +
   1229A  ILE      4.1     0.2    -      -       -      +
   1230A  PRO*     4.1    19.1    -      -       +      -
   1234A  SER*     3.7    27.1    -      -       -      +
   1299A  PRO*     4.2     1.2    -      -       -      +
   1301A  THR*     4.3    12.3    -      -       -      +
   1302A  PRO*     5.2     2.2    -      -       +      -
----------------------------------------------------------
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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