Contacts of the helix formed by residues 1194 - 1220 (chain A) in PDB entry 5YS0


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 LEU1194 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1157A  PRO*     5.2     6.3    -      -       +      -
   1158A  TYR*     3.6    31.9    -      -       +      +
   1192A  SER*     2.9    13.0    +      -       -      +
   1193A  MET*     1.3    81.9    -      -       +      +
   1195A  LYS*     1.3    52.9    +      -       -      +
   1196A  GLY      3.3     1.3    -      -       -      -
   1197A  THR*     2.7    62.1    +      -       +      +
   1198A  ILE*     3.1    20.0    +      -       +      +
   1301A  ERG      4.8    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1188A  TRP*     3.4    42.9    -      -       +      +
   1192A  SER*     3.0    21.2    +      -       -      +
   1193A  MET      3.1     2.1    -      -       -      +
   1194A  LEU*     1.3    75.1    -      -       -      +
   1196A  GLY*     1.3    59.0    +      -       -      +
   1198A  ILE      3.4     0.7    +      -       -      -
   1199A  GLU*     2.8    51.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY1196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1193A  MET      4.7     2.4    +      -       -      -
   1194A  LEU      3.3     0.8    -      -       -      -
   1195A  LYS*     1.3    77.5    -      -       -      +
   1197A  THR*     1.3    61.0    +      -       -      +
   1199A  GLU*     4.0    11.8    -      -       -      +
   1200A  LYS*     3.7    17.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1194A  LEU*     2.7    41.3    +      -       +      +
   1196A  GLY*     1.3    71.4    -      -       -      +
   1198A  ILE*     1.3    56.9    +      -       +      +
   1200A  LYS*     3.4     5.4    +      -       -      +
   1201A  GLY*     2.6    33.4    +      -       -      -
   1301A  ERG      3.9    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE1198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1157A  PRO      3.8    15.7    -      -       -      +
   1158A  TYR*     4.2     7.4    -      -       +      -
   1162A  PHE*     3.6    51.4    -      -       +      -
   1186A  VAL*     4.6     2.2    -      -       +      -
   1188A  TRP*     3.5    28.5    -      -       +      -
   1194A  LEU*     3.1    20.8    +      -       +      +
   1195A  LYS      3.7     5.8    -      -       -      +
   1197A  THR*     1.3    80.6    -      -       +      +
   1199A  GLU*     1.3    54.2    +      -       -      +
   1201A  GLY*     2.8     2.1    +      -       -      +
   1202A  SER*     2.7    43.3    +      -       -      +
   1301A  ERG      4.6    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1185A  ASN*     5.2     0.9    -      -       -      -
   1186A  VAL*     3.8    30.6    +      -       +      +
   1188A  TRP*     3.0    30.1    +      -       +      +
   1195A  LYS*     2.8    50.9    +      -       +      +
   1196A  GLY*     4.1     8.5    -      -       -      -
   1198A  ILE*     1.3    74.7    -      -       -      +
   1200A  LYS*     1.3    58.6    +      -       -      +
   1202A  SER*     3.4     1.4    +      -       -      -
   1203A  ILE*     3.1    36.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1196A  GLY      3.7    14.9    +      -       -      +
   1197A  THR*     3.4     5.0    +      -       -      +
   1198A  ILE      3.3     0.2    -      -       -      -
   1199A  GLU*     1.3    75.8    -      -       -      +
   1201A  GLY*     1.3    65.3    +      -       -      +
   1203A  ILE*     4.0    12.6    -      -       +      +
   1204A  ASP*     3.1    53.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY1201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1197A  THR      2.6    21.7    +      -       -      -
   1198A  ILE      2.8     5.2    +      -       -      -
   1200A  LYS*     1.3    73.0    -      -       -      +
   1202A  SER*     1.3    63.0    +      -       -      -
   1204A  ASP*     3.4     3.4    +      -       -      +
   1205A  GLY*     3.2    18.7    +      -       -      -
   1301A  ERG      4.1    35.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1164A  VAL*     3.2    38.5    -      -       -      +
   1184A  THR*     4.8     1.1    -      -       -      -
   1186A  VAL*     3.3    15.8    -      -       -      +
   1198A  ILE*     2.7    24.1    +      -       -      +
   1199A  GLU      3.6     7.0    -      -       -      -
   1201A  GLY*     1.3    72.1    -      -       -      +
   1203A  ILE*     1.3    67.9    +      -       -      +
   1205A  GLY*     4.2     0.2    -      -       -      -
   1206A  GLN*     3.0    28.9    +      -       -      +
   1301A  ERG      4.4    16.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1061A  THR      3.9    25.6    -      -       -      +
   1063A  ILE*     3.8    22.0    -      -       +      +
   1184A  THR*     3.6    21.3    -      -       -      +
   1185A  ASN*     5.0     3.6    -      -       -      +
   1186A  VAL*     5.2     1.1    -      -       +      -
   1199A  GLU*     3.1    35.1    +      -       +      +
   1200A  LYS*     4.4    12.3    -      -       +      +
   1202A  SER*     1.3    82.1    -      -       -      +
   1204A  ASP*     1.3    64.9    +      -       -      +
   1206A  GLN*     3.7     1.0    -      -       -      +
   1207A  ARG*     2.9    47.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1200A  LYS*     3.1    47.4    +      -       -      +
   1201A  GLY*     3.9     4.7    -      -       -      +
   1202A  SER      3.2     0.2    -      -       -      -
   1203A  ILE*     1.3    79.3    -      -       -      +
   1205A  GLY*     1.3    62.1    +      -       -      +
   1207A  ARG*     3.0    45.2    +      -       -      +
   1208A  SER*     3.2     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY1205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1201A  GLY      3.2     9.7    +      -       -      -
   1204A  ASP*     1.3    76.4    -      -       -      +
   1206A  GLN*     1.3    54.1    +      -       -      +
   1208A  SER*     2.7    12.5    +      -       -      -
   1209A  SER*     2.6    34.8    +      -       -      -
   1301A  ERG      3.9    25.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1063A  ILE*     3.6    11.9    -      -       +      -
   1164A  VAL*     5.9     2.2    -      -       +      -
   1166A  THR*     3.3    26.1    +      -       -      +
   1168A  PHE*     4.4     7.1    -      -       -      -
   1182A  VAL*     3.9     5.4    -      -       -      +
   1184A  THR*     3.4    24.0    -      -       +      -
   1202A  SER      3.0    20.9    +      -       -      +
   1203A  ILE      3.7     2.5    -      -       -      +
   1205A  GLY*     1.3    73.7    -      -       -      +
   1207A  ARG*     1.3    57.9    +      -       -      +
   1209A  SER*     4.1     9.2    +      -       -      -
   1210A  THR*     2.3    54.5    +      -       -      +
   1301A  ERG      3.3    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1063A  ILE*     3.4    30.0    +      -       +      +
   1064A  ASP*     4.7     7.3    -      -       -      +
   1203A  ILE*     2.9    28.4    +      -       -      +
   1204A  ASP*     3.0    38.8    +      -       -      +
   1206A  GLN*     1.3    76.3    -      -       -      +
   1208A  SER*     1.3    61.7    -      -       -      +
   1210A  THR*     3.6     2.6    +      -       -      -
   1211A  LYS*     3.2    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1204A  ASP      3.2     6.1    +      -       -      -
   1205A  GLY*     2.7    19.3    +      -       -      -
   1207A  ARG*     1.3    72.8    -      -       -      +
   1209A  SER*     1.3    59.9    +      -       -      -
   1211A  LYS*     2.9    24.1    +      -       -      +
   1212A  GLN*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1095A  GLN*     2.7    44.5    +      -       -      +
   1117A  LYS*     5.7     0.2    -      -       -      -
   1205A  GLY      2.6    18.4    +      -       -      -
   1206A  GLN*     3.6     8.2    +      -       -      -
   1208A  SER*     1.3    73.0    -      -       -      +
   1210A  THR*     1.3    57.1    +      -       -      +
   1212A  GLN*     3.3     4.9    +      -       -      -
   1213A  LEU*     3.0    20.5    +      -       -      +
   1301A  ERG      3.6    37.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1063A  ILE*     4.3     2.6    -      -       -      +
   1064A  ASP*     3.9    18.8    -      -       -      +
   1067A  ILE*     4.2     4.7    -      -       +      -
   1168A  PHE*     4.8     2.2    -      -       +      -
   1180A  MET*     4.1    13.5    -      -       +      -
   1182A  VAL*     3.7    31.4    -      -       +      +
   1206A  GLN*     2.3    47.3    +      -       -      +
   1207A  ARG      3.9     4.3    -      -       -      -
   1209A  SER*     1.3    73.8    +      -       -      +
   1211A  LYS*     1.3    62.1    +      -       -      +
   1213A  LEU*     4.3     7.2    -      -       +      -
   1214A  VAL*     3.0    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1064A  ASP*     5.3     2.0    +      -       -      +
   1207A  ARG      3.2    13.5    +      -       -      +
   1208A  SER*     2.9    13.9    +      -       -      +
   1210A  THR*     1.3    76.8    -      -       -      +
   1212A  GLN*     1.3    60.8    +      -       +      +
   1214A  VAL*     3.5    10.3    -      -       +      +
   1215A  ASP*     2.4    67.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN1212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1094A  ASN*     3.1    32.0    +      -       -      +
   1095A  GLN*     3.6    33.1    -      -       +      +
   1096A  ASN*     4.8     4.2    +      -       -      +
   1208A  SER*     3.0    32.9    +      -       -      +
   1209A  SER*     4.0     1.0    -      -       -      -
   1211A  LYS*     1.3    79.2    -      -       +      +
   1213A  LEU*     1.3    54.7    +      -       -      +
   1215A  ASP*     4.0     6.7    -      -       +      +
   1216A  ASP*     2.7    47.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1080A  LEU*     4.1    23.6    -      -       +      -
   1081A  TYR*     6.1     0.2    -      -       -      +
   1088A  ILE*     4.6     6.7    -      -       +      -
   1091A  ILE*     3.6    36.2    -      -       +      +
   1095A  GLN*     4.1     6.0    +      -       -      +
   1168A  PHE*     5.0    12.1    -      -       +      -
   1170A  TYR*     4.6     8.3    -      -       -      +
   1180A  MET*     3.6    33.7    -      -       +      -
   1209A  SER*     3.0    17.7    +      -       -      +
   1210A  THR*     3.4     6.7    +      -       -      +
   1211A  LYS      3.3     0.2    -      -       -      -
   1212A  GLN*     1.3    77.9    -      -       -      +
   1214A  VAL*     1.3    60.6    +      -       +      +
   1216A  ASP*     4.1     1.0    -      -       -      +
   1217A  LEU*     2.7    37.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1067A  ILE*     3.7    43.7    -      -       +      -
   1069A  ILE*     4.6     5.8    -      -       +      -
   1180A  MET*     3.8    31.2    -      -       +      -
   1210A  THR*     3.0    20.3    +      -       +      +
   1211A  LYS*     3.5    12.1    -      -       +      +
   1213A  LEU*     1.3    74.2    -      -       +      +
   1215A  ASP*     1.3    68.5    -      -       -      +
   1217A  LEU*     4.0     7.0    -      -       -      -
   1218A  LYS*     3.2    32.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP1215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1211A  LYS*     2.4    51.5    +      -       -      +
   1212A  GLN*     3.4     8.6    -      -       +      +
   1214A  VAL*     1.3    81.3    -      -       -      +
   1216A  ASP*     1.3    65.7    +      -       -      +
   1218A  LYS*     4.4     2.8    -      -       -      +
   1219A  LYS*     3.8    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1091A  ILE*     3.5    32.5    -      -       +      +
   1094A  ASN*     2.9    41.2    +      -       -      +
   1212A  GLN*     2.7    28.7    +      -       -      +
   1213A  LEU*     4.1     2.4    -      -       -      +
   1215A  ASP*     1.3    78.2    -      -       -      +
   1217A  LEU*     1.3    66.1    +      -       -      +
   1218A  LYS      3.3     0.3    +      -       -      -
   1219A  LYS*     3.4    15.9    +      -       +      +
   1220A  ILE*     3.0    25.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1069A  ILE*     4.4    34.8    -      -       +      +
   1071A  VAL*     5.5     4.3    -      -       -      +
   1076A  VAL*     4.6    10.3    -      -       +      -
   1079A  LEU*     4.5    24.0    -      -       +      +
   1080A  LEU*     3.5    48.0    -      -       +      -
   1091A  ILE*     5.7     4.3    -      -       +      -
   1180A  MET*     4.7     5.2    -      -       -      -
   1213A  LEU*     2.7    33.0    +      -       +      +
   1214A  VAL*     4.0     7.0    -      -       -      +
   1215A  ASP      3.4     0.2    -      -       -      -
   1216A  ASP*     1.3    75.2    -      -       -      +
   1218A  LYS*     1.3    63.5    +      -       -      +
   1220A  ILE*     3.7    16.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1067A  ILE*     4.1    14.5    -      -       -      +
   1068A  ASN*     3.0    29.4    +      -       -      +
   1069A  ILE*     3.7    20.2    -      -       +      -
   1070A  PRO*     3.8    23.3    -      -       +      +
   1071A  VAL*     6.1     2.4    -      -       -      +
   1214A  VAL*     3.2    20.4    +      -       +      +
   1215A  ASP*     4.4     3.6    -      -       -      +
   1216A  ASP      3.2     0.2    -      -       -      -
   1217A  LEU*     1.3    75.2    -      -       -      +
   1219A  LYS*     1.3    67.8    +      -       -      +
   1220A  ILE      2.8    12.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1215A  ASP*     3.8    19.1    +      -       -      +
   1216A  ASP*     3.4    17.2    +      -       +      +
   1217A  LEU      3.4     0.2    -      -       -      -
   1218A  LYS*     1.3    77.1    -      -       -      +
   1220A  ILE*     1.3    68.4    +      -       +      +
   1223B  ASN*     5.5     4.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1071A  VAL*     5.6     5.2    -      -       -      +
   1079A  LEU*     4.7    26.7    -      -       +      -
   1087A  TYR*     5.0    18.2    -      -       +      -
   1091A  ILE*     5.4     7.0    -      -       +      -
   1216A  ASP*     3.0    32.5    -      -       +      +
   1217A  LEU*     3.7    11.1    +      -       +      +
   1218A  LYS      2.8    21.2    +      -       -      +
   1219A  LYS*     1.3    80.3    -      -       +      +
----------------------------------------------------------
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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