Contacts of the helix formed by residues 1080 - 1108 (chain F) in PDB entry 6BAA


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 LEU1080 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    541F  SER*     5.1     2.9    -      -       -      +
    545F  PHE*     3.2    40.9    -      -       +      +
    548F  THR*     5.8     0.2    -      -       -      -
   1079F  CYS*     1.3    72.0    -      -       -      +
   1081F  VAL*     1.3    57.6    +      -       -      +
   1082F  THR      3.2     2.5    -      -       -      -
   1083F  SER*     3.0    11.7    +      -       -      -
   1084F  VAL*     3.0    28.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1081 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1019F  SER*     4.8    14.6    -      -       -      -
   1079F  CYS*     3.2    11.8    +      -       +      +
   1080F  LEU*     1.3    77.7    -      -       -      +
   1082F  THR*     1.3    57.6    +      -       -      +
   1084F  VAL*     3.9     6.4    -      -       -      +
   1085F  THR*     2.9    31.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR1082 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1016F  LEU*     5.0     5.7    -      -       -      +
   1019F  SER*     4.6     9.8    -      -       -      -
   1020F  GLN*     4.7    26.0    -      -       -      -
   1079F  CYS      4.3     5.0    +      -       -      -
   1080F  LEU      3.2     0.6    -      -       -      -
   1081F  VAL*     1.3    78.8    -      -       -      +
   1083F  SER*     1.3    56.0    +      -       -      +
   1085F  THR*     3.4     5.9    +      -       -      -
   1086F  VAL*     2.9    29.5    +      -       -      +
   1141F  GLU*     4.0    10.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1083 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    541F  SER*     3.8    32.8    -      -       -      -
    544F  ILE*     4.1    11.2    -      -       -      -
    545F  PHE*     4.6     3.1    -      -       -      -
   1080F  LEU*     3.0    13.0    +      -       -      -
   1082F  THR*     1.3    77.1    -      -       -      +
   1084F  VAL*     1.3    60.4    +      -       -      +
   1086F  VAL*     3.3     3.3    +      -       -      +
   1087F  GLU*     3.0    28.8    +      -       -      +
   1141F  GLU*     3.3    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1084 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    541F  SER*     4.1    14.1    -      -       -      -
   1080F  LEU*     3.0    16.3    +      -       +      +
   1081F  VAL*     4.1     6.7    -      -       -      +
   1083F  SER*     1.3    77.5    -      -       -      +
   1085F  THR*     1.3    57.2    +      -       -      +
   1087F  GLU*     3.4     3.1    +      -       -      +
   1088F  TRP*     2.9    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1085 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1012F  LEU*     5.2     6.4    -      -       -      +
   1015F  LEU*     5.1     7.2    -      -       -      -
   1016F  LEU*     4.5    24.9    -      -       -      -
   1019F  SER*     6.0     0.7    -      -       -      -
   1081F  VAL      2.9    19.8    +      -       -      -
   1082F  THR*     3.6     7.4    -      -       -      -
   1084F  VAL*     1.3    75.8    -      -       -      +
   1086F  VAL*     1.3    59.4    +      -       -      +
   1088F  TRP*     3.8     4.8    -      -       -      +
   1089F  THR*     2.9    32.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1086 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1016F  LEU*     5.5     2.8    -      -       -      +
   1082F  THR      2.9    16.8    +      -       -      +
   1083F  SER      3.3     5.6    +      -       -      +
   1085F  THR*     1.3    76.1    -      -       -      +
   1087F  GLU*     1.3    57.1    +      -       -      +
   1089F  THR*     3.3     5.8    +      -       -      -
   1090F  GLY*     2.9    25.8    +      -       -      -
   1137F  PRO*     4.6    16.9    -      -       +      +
   1141F  GLU*     4.0    26.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1087 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    537F  ALA*     3.6    44.5    -      -       +      +
    540F  THR*     5.6     3.1    -      -       -      -
    541F  SER*     4.8     3.1    -      -       -      +
   1083F  SER      3.0    15.9    +      -       -      +
   1084F  VAL*     3.9     5.8    -      -       -      +
   1086F  VAL*     1.3    76.5    -      -       -      +
   1088F  TRP*     1.3    61.8    +      -       -      +
   1090F  GLY*     3.2     2.7    +      -       -      -
   1091F  LEU*     3.0    22.5    +      -       -      +
   1137F  PRO*     5.5     5.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP1088 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    537F  ALA*     5.9     0.2    -      -       -      -
   1084F  VAL      2.9    18.2    +      -       -      +
   1085F  THR*     3.8     5.6    -      -       -      +
   1087F  GLU*     1.3    76.2    -      -       -      +
   1089F  THR*     1.3    58.1    +      -       -      +
   1091F  LEU*     3.3     7.6    +      -       -      +
   1092F  LYS*     3.0    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1089 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1008F  ALA*     5.4    15.0    -      -       -      +
   1012F  LEU*     4.7    19.9    -      -       -      +
   1085F  THR      2.9    19.7    +      -       -      -
   1086F  VAL*     3.6     6.7    -      -       -      -
   1088F  TRP*     1.3    76.9    -      -       -      +
   1090F  GLY*     1.3    57.7    +      -       -      +
   1092F  LYS*     3.3     8.1    +      -       -      +
   1093F  VAL*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY1090 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1086F  VAL      2.9    14.7    +      -       -      -
   1087F  GLU      3.2     3.8    +      -       -      -
   1089F  THR*     1.3    78.5    -      -       -      +
   1091F  LEU*     1.3    55.5    +      -       -      +
   1093F  VAL*     3.4     5.9    +      -       -      +
   1094F  ALA*     2.9    30.2    +      -       -      +
   1132F  ILE*     5.5     3.8    -      -       -      +
   1133F  ASP*     5.0     0.5    -      -       -      +
   1137F  PRO*     4.5    19.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1091 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    533F  LEU*     5.9    11.0    -      -       +      +
    534F  ARG*     6.1     2.2    -      -       +      +
    537F  ALA*     5.8     5.4    -      -       +      -
   1087F  GLU      3.0    13.3    +      -       -      +
   1088F  TRP*     3.6    10.8    -      -       -      +
   1090F  GLY*     1.3    74.2    -      -       -      +
   1092F  LYS*     1.3    63.3    +      -       -      +
   1094F  ALA*     3.4     6.4    +      -       -      +
   1095F  LYS*     3.1    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1092 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007F  SER      4.8     3.4    -      -       -      +
   1008F  ALA      5.0    11.0    -      -       -      +
   1088F  TRP      3.0    13.2    +      -       -      +
   1089F  THR*     3.3    11.6    +      -       -      +
   1091F  LEU*     1.3    77.7    -      -       -      +
   1093F  VAL*     1.3    62.9    +      -       -      +
   1095F  LYS*     4.0     2.3    -      -       -      +
   1096F  ARG*     3.0    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1093 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1004F  TYR*     5.2     4.0    -      -       +      +
   1007F  SER*     4.2    26.9    +      -       -      +
   1008F  ALA*     5.1     4.3    -      -       +      -
   1089F  THR      2.9    16.9    +      -       -      +
   1090F  GLY*     3.9     6.1    -      -       -      +
   1092F  LYS*     1.3    75.0    -      -       -      +
   1094F  ALA*     1.3    57.7    +      -       -      +
   1096F  ARG*     4.0     1.3    -      -       -      +
   1097F  LEU*     2.9    35.2    +      -       -      +
   1132F  ILE*     5.4     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1094 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    533F  LEU*     6.3     3.1    -      -       +      -
   1090F  GLY      2.9    17.3    +      -       -      +
   1091F  LEU*     3.6     8.1    -      -       -      +
   1092F  LYS      3.2     0.2    -      -       -      -
   1093F  VAL*     1.3    76.6    -      -       -      +
   1095F  LYS*     1.3    58.4    +      -       -      +
   1097F  LEU*     4.3     2.0    -      -       -      +
   1098F  HIS*     3.0    32.3    +      -       -      +
   1132F  ILE*     4.9     5.5    -      -       -      +
   1133F  ASP*     3.3    33.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1095 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530F  MET*     6.0     7.0    -      -       +      -
   1091F  LEU      3.1    13.4    +      -       -      +
   1092F  LYS*     4.3     2.5    -      -       -      +
   1094F  ALA*     1.3    79.7    -      -       -      +
   1096F  ARG*     1.3    62.2    +      -       -      +
   1098F  HIS*     3.8     4.6    -      -       -      +
   1099F  ARG*     3.0    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1096 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007F  SER*     4.5    16.8    -      -       -      +
   1092F  LYS      3.0    18.8    +      -       -      +
   1093F  VAL*     4.0     2.5    -      -       -      +
   1095F  LYS*     1.3    77.8    -      -       -      +
   1097F  LEU*     1.3    56.8    +      -       -      +
   1099F  ARG*     3.5     3.8    +      -       -      +
   1100F  SER*     2.9    30.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1097 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1007F  SER*     5.6     9.3    -      -       -      -
   1093F  VAL      2.9    17.9    +      -       -      +
   1094F  ALA*     4.3     2.0    -      -       -      +
   1096F  ARG*     1.3    76.3    -      -       -      +
   1098F  HIS*     1.3    59.1    +      -       -      +
   1100F  SER*     4.3     5.2    -      -       -      -
   1101F  LEU*     2.9    33.6    +      -       -      +
   1132F  ILE*     5.7     8.7    -      -       +      -
   1315F  ILE*     4.5    18.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS1098 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    526F  ARG*     5.9     7.6    -      -       +      -
   1094F  ALA      3.0    21.7    +      -       -      +
   1095F  LYS*     3.8     5.6    -      -       -      +
   1096F  ARG      3.3     0.2    -      -       -      -
   1097F  LEU*     1.3    76.2    -      -       -      +
   1099F  ARG*     1.3    62.8    +      -       -      +
   1101F  LEU*     4.1     2.0    -      -       -      +
   1102F  LEU*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1099 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1095F  LYS      3.0    18.1    +      -       -      +
   1096F  ARG*     4.0     3.1    -      -       -      +
   1098F  HIS*     1.3    76.0    -      -       -      +
   1100F  SER*     1.3    58.1    +      -       -      +
   1102F  LEU*     3.4     6.0    +      -       -      +
   1103F  ASN*     3.0    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1100 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1096F  ARG      2.9    20.0    +      -       -      -
   1097F  LEU*     3.9     5.8    -      -       -      -
   1099F  ARG*     1.3    77.4    -      -       -      +
   1101F  LEU*     1.3    59.3    +      -       -      +
   1103F  ASN*     3.4     4.0    +      -       -      +
   1104F  ARG*     2.9    31.5    +      -       -      +
   1318F  LEU*     6.0     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1101 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1097F  LEU      2.9    18.1    +      -       -      +
   1098F  HIS*     4.2     1.3    -      -       -      +
   1100F  SER*     1.3    73.7    -      -       -      +
   1102F  LEU*     1.3    60.6    +      -       -      +
   1104F  ARG*     3.9     4.8    -      -       -      +
   1105F  ILE*     2.9    33.8    +      -       -      +
   1315F  ILE*     4.4    27.1    -      -       +      +
   1318F  LEU*     5.1     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1102 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519F  CYS*     5.8     8.7    -      -       +      -
    522F  VAL*     6.1     5.4    -      -       +      -
   1098F  HIS      3.0    20.2    +      -       -      +
   1099F  ARG*     3.6     6.7    -      -       -      +
   1101F  LEU*     1.3    77.4    -      -       -      +
   1103F  ASN*     1.3    57.3    +      -       -      +
   1105F  ILE*     3.9     3.4    -      -       -      +
   1106F  ILE*     3.0    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN1103 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1099F  ARG      3.0    18.5    +      -       -      +
   1100F  SER*     4.1     2.9    -      -       -      +
   1102F  LEU*     1.3    75.9    -      -       +      +
   1104F  ARG*     1.3    57.5    +      -       -      +
   1106F  ILE*     3.8     4.5    -      -       -      +
   1107F  LEU*     3.0    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1104 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1100F  SER      2.9    18.8    +      -       -      +
   1101F  LEU      3.9     3.1    -      -       -      +
   1103F  ASN*     1.3    78.1    -      -       -      +
   1105F  ILE*     1.3    60.5    +      -       -      +
   1107F  LEU*     3.4     8.7    +      -       -      +
   1108F  ALA*     3.4    18.4    +      -       -      +
   1318F  LEU*     4.3    31.2    -      -       +      -
   1319F  LEU*     5.1     9.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1105 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1101F  LEU      2.9    17.9    +      -       -      +
   1102F  LEU*     4.1     2.7    -      -       -      +
   1104F  ARG*     1.3    76.1    -      -       -      +
   1106F  ILE*     1.3    64.9    +      -       -      +
   1107F  LEU      3.1     0.2    -      -       -      -
   1108F  ALA*     3.0    25.3    +      -       -      +
   1121F  ILE*     6.0     6.1    -      -       +      -
   1319F  LEU*     5.3    10.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1106 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    515F  GLU*     4.5    25.3    -      -       +      +
    519F  CYS*     5.8     7.2    -      -       +      -
   1102F  LEU      3.0    18.1    +      -       -      +
   1103F  ASN*     3.8     4.3    -      -       -      +
   1105F  ILE*     1.3    76.9    -      -       -      +
   1107F  LEU*     1.3    61.6    +      -       -      +
   1108F  ALA      3.6     4.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1107 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1103F  ASN      3.0    19.1    +      -       -      +
   1104F  ARG*     3.5     9.6    -      -       -      +
   1105F  ILE      3.1     0.2    -      -       -      -
   1106F  ILE*     1.3    79.2    -      -       -      +
   1108F  ALA*     1.3    64.2    +      -       -      +
   1109F  PRO*     3.7     1.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1108 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1104F  ARG      3.4     6.8    +      -       -      +
   1105F  ILE      3.0    18.6    +      -       -      +
   1106F  ILE      3.9     4.7    -      -       -      +
   1107F  LEU*     1.3    81.1    -      -       -      +
   1109F  PRO*     1.3    69.3    -      -       -      +
   1112F  PHE*     4.6     3.6    -      -       +      -
   1319F  LEU*     4.0    39.7    -      -       +      +
----------------------------------------------------------
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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