Contacts of the helix formed by residues 184 - 205 (chain A) in PDB entry 3OX4


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 PRO 184 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  GLY      3.4     9.6    -      -       -      +
    183A  MET*     1.3    86.1    -      -       +      +
    185A  LYS*     1.3    67.4    +      -       -      +
    186A  GLY*     3.1     2.9    +      -       -      +
    187A  LEU*     3.2    19.5    +      -       +      +
    188A  THR*     3.0    19.8    +      -       -      -
   1385A  NAD      3.8    15.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183A  MET      3.7     0.6    +      -       -      -
    184A  PRO*     1.3    71.9    -      -       -      +
    186A  GLY*     1.3    58.8    +      -       -      +
    188A  THR*     3.5     7.2    -      -       -      -
    189A  ALA*     2.9    25.7    +      -       +      +
    230A  ALA      5.7     0.2    -      -       -      -
    231A  CYS*     3.2    45.5    +      -       +      +
    232A  ASP*     4.2    12.5    +      -       -      -
    333A  SER      4.6     2.8    +      -       -      -
    334A  ILE*     3.0    40.6    +      -       -      +
    335A  GLY*     5.1     0.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  PRO*     3.1     3.8    +      -       -      +
    185A  LYS*     1.3    82.5    -      -       -      +
    187A  LEU*     1.3    56.4    +      -       -      +
    189A  ALA*     3.5     4.0    +      -       -      +
    190A  ALA*     3.0    30.7    +      -       -      +
    279A  VAL*     5.5     0.5    -      -       -      +
    336A  ILE*     5.7     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  THR*     3.8     9.2    -      -       +      -
    183A  MET*     3.8    21.5    -      -       +      -
    184A  PRO*     3.2    19.9    +      -       +      +
    186A  GLY*     1.3    73.1    -      -       -      +
    188A  THR*     1.3    56.1    +      -       -      +
    190A  ALA*     4.6     4.5    -      -       +      +
    191A  THR*     2.7    63.3    +      -       +      +
   1385A  NAD      3.3    66.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ALA*     5.1     1.6    -      -       +      +
    183A  MET*     3.2    18.7    +      -       +      +
    184A  PRO      3.0    16.8    +      -       -      -
    185A  LYS*     3.5     7.6    -      -       -      -
    187A  LEU*     1.3    78.6    -      -       -      +
    189A  ALA*     1.3    57.5    +      -       -      +
    191A  THR*     3.4     4.9    +      -       -      -
    192A  GLY*     3.0    25.8    +      -       -      -
    227A  LEU*     3.6     6.5    -      -       +      +
    230A  ALA*     3.9    23.3    -      -       +      +
    231A  CYS*     3.8    15.7    -      -       -      -
    240A  ARG*     3.0    32.1    +      -       -      +
    243A  MET*     5.5     1.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  LYS*     2.9    18.1    +      -       +      +
    186A  GLY*     4.0     4.5    -      -       -      +
    188A  THR*     1.3    77.0    -      -       -      +
    190A  ALA*     1.3    59.0    -      -       -      +
    192A  GLY      3.9     0.5    -      -       -      -
    193A  MET*     3.0    35.3    +      -       -      +
    227A  LEU*     4.4     1.3    -      -       -      +
    231A  CYS*     3.7    16.6    -      -       -      -
    334A  ILE*     3.5    36.6    -      -       +      +
    336A  ILE*     4.1     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186A  GLY      3.0    18.8    +      -       -      +
    187A  LEU*     4.1     5.8    -      -       +      +
    189A  ALA*     1.3    74.6    -      -       -      +
    191A  THR*     1.3    63.2    +      -       +      +
    193A  MET*     3.4     1.7    +      -       -      +
    194A  ASP*     3.1    26.2    +      -       -      +
    276A  PRO*     6.2     0.7    -      -       +      -
    278A  GLY*     3.5    15.3    -      -       -      +
    279A  VAL*     3.6    34.3    -      -       +      +
    336A  ILE*     4.2     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  THR*     3.9    12.8    -      -       -      +
    140A  ALA*     3.5    27.4    +      -       -      +
    141A  GLY*     2.9    25.7    -      -       -      -
    142A  THR*     5.7     0.9    -      -       -      +
    183A  MET*     3.9     4.3    -      -       -      +
    187A  LEU*     2.7    50.3    +      -       +      +
    188A  THR*     3.4     4.3    +      -       -      -
    190A  ALA*     1.3    75.8    -      -       +      +
    192A  GLY*     1.3    62.8    +      -       -      +
    194A  ASP*     3.2     6.8    +      -       -      +
    195A  ALA      3.0    14.7    +      -       -      -
    278A  GLY*     5.1     2.0    -      -       -      -
   1385A  NAD      3.8    16.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ALA      3.6    11.2    -      -       -      -
    188A  THR      3.0    18.8    +      -       -      -
    190A  ALA      3.3     0.2    -      -       -      -
    191A  THR*     1.3    78.8    +      -       -      +
    193A  MET*     1.3    55.7    +      -       -      +
    195A  ALA*     3.3     5.1    +      -       -      +
    196A  LEU*     3.0    25.3    +      -       -      +
    223A  ILE*     4.1     4.0    -      -       -      +
    227A  LEU*     3.8    14.3    -      -       -      +
    243A  MET*     3.8    16.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    189A  ALA      3.0    24.5    +      -       -      +
    190A  ALA      3.9     2.7    -      -       -      +
    191A  THR      3.3     0.2    -      -       -      -
    192A  GLY*     1.3    73.8    -      -       -      +
    194A  ASP*     1.3    60.3    +      -       -      +
    196A  LEU*     3.7    14.7    -      -       +      +
    197A  THR*     2.8    31.9    +      -       -      -
    227A  LEU*     4.1     6.1    -      -       -      -
    278A  GLY      5.0     0.9    -      -       -      -
    282A  ALA*     3.5    39.9    -      -       +      +
    285A  LEU*     4.4     5.6    -      -       +      -
    327A  VAL*     4.3    20.6    -      -       +      +
    330A  LEU*     3.9    25.6    -      -       -      -
    331A  ALA*     3.9    23.3    -      -       +      -
    334A  ILE*     3.9    15.3    -      -       +      -
    336A  ILE*     4.0     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  GLY      3.3     8.0    -      -       -      +
    142A  THR*     4.0     3.8    +      -       -      -
    190A  ALA      3.1    14.6    +      -       -      +
    191A  THR*     3.3    12.8    -      -       -      +
    192A  GLY      3.2     0.2    -      -       -      -
    193A  MET*     1.3    77.1    -      -       -      +
    195A  ALA*     1.3    64.1    +      -       -      +
    197A  THR*     3.1     5.5    +      -       -      -
    198A  HIS*     2.9    42.3    +      -       -      -
    263A  HIS*     3.3     6.8    +      -       -      -
    277A  HIS*     3.3    19.7    +      -       -      -
    278A  GLY*     4.2    10.5    -      -       -      -
    281A  ASN*     3.6     6.7    -      -       -      +
    501A  FE2      2.1    32.0    -      -       -      -
   1385A  NAD      3.9     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ALA      4.3     2.7    -      -       -      +
    141A  GLY*     3.7    20.4    +      -       -      +
    191A  THR      3.0    12.9    +      -       -      +
    192A  GLY*     3.3    10.3    +      -       -      +
    194A  ASP*     1.3    77.8    -      -       -      +
    196A  LEU*     1.3    61.0    +      -       -      +
    198A  HIS*     3.1    10.4    +      -       -      +
    199A  ALA*     3.1    19.8    +      -       -      +
    223A  ILE*     3.6    17.2    -      -       +      +
    243A  MET*     5.0     0.7    -      -       +      -
    247A  GLN*     4.2    18.6    -      -       +      -
    250A  ALA*     3.5     8.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192A  GLY      3.0    13.8    +      -       -      +
    193A  MET*     3.7    24.5    -      -       +      +
    195A  ALA*     1.3    76.4    -      -       -      +
    197A  THR*     1.3    62.8    +      -       -      +
    199A  ALA*     3.1     5.7    +      -       -      +
    200A  PHE*     3.0    47.3    +      -       +      -
    220A  ALA*     4.0    32.1    -      -       +      +
    223A  ILE*     3.5    18.1    -      -       +      +
    285A  LEU*     4.5     6.1    -      -       +      -
    307A  MET*     4.6     8.3    -      -       +      -
    327A  VAL*     4.5     8.7    -      -       +      -
    330A  LEU*     3.8    28.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  MET      2.8    21.3    +      -       -      -
    194A  ASP*     3.1    10.1    +      -       -      -
    196A  LEU*     1.3    78.2    -      -       -      +
    198A  HIS*     1.3    57.5    +      -       -      +
    200A  PHE*     3.3     1.0    +      -       -      +
    201A  GLU*     2.8    33.0    +      -       +      +
    262A  VAL*     3.6    26.9    -      -       +      -
    263A  HIS*     3.3    30.7    -      -       +      +
    281A  ASN*     3.8    16.8    +      -       -      +
    285A  LEU*     3.7    23.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  GLY      3.1    19.8    +      -       -      -
    142A  THR      3.7    15.4    +      -       -      -
    143A  ALA*     5.3     0.6    -      -       -      +
    194A  ASP*     2.9    33.4    +      -       -      -
    195A  ALA*     3.1     9.0    +      -       -      +
    197A  THR*     1.3    75.8    -      -       -      +
    199A  ALA*     1.3    58.5    +      -       -      +
    202A  ALA*     2.9    34.7    +      -       -      +
    250A  ALA*     3.8    13.0    -      -       +      +
    251A  GLY      5.3     0.2    +      -       -      -
    254A  PHE*     3.6    29.8    -      +       +      +
    259A  LEU*     3.8    17.4    -      -       +      +
    263A  HIS*     3.4    14.4    -      +       -      -
    501A  FE2      2.2    28.8    -      -       -      -
   1385A  NAD      3.8     6.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  ALA      3.1    11.6    +      -       -      +
    196A  LEU*     3.3    10.8    -      -       +      +
    198A  HIS*     1.3    76.5    -      -       -      +
    200A  PHE*     1.3    56.8    +      -       -      +
    202A  ALA*     4.8     0.4    -      -       -      -
    203A  TYR*     2.9    33.2    +      -       -      +
    216A  ALA*     3.5    33.8    -      -       -      +
    219A  ALA*     4.3     7.6    -      -       +      -
    220A  ALA*     4.2    20.4    -      -       +      +
    250A  ALA*     4.4     4.2    -      -       +      +
    253A  ALA*     5.5     0.2    -      -       -      -
    303A  VAL*     5.9     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  LEU*     3.0    42.3    +      -       +      +
    197A  THR      3.7     6.1    -      -       -      +
    199A  ALA*     1.3    77.8    -      -       +      +
    201A  GLU*     1.3    58.3    +      -       +      +
    203A  TYR*     3.4     4.2    +      -       -      +
    204A  SER*     2.9    34.6    +      -       -      -
    285A  LEU*     4.2    19.3    -      -       +      -
    289A  LEU*     3.7    29.4    -      -       +      -
    300A  LEU*     4.2    13.0    -      -       +      -
    303A  VAL*     3.4    44.3    -      -       +      +
    307A  MET*     4.1     3.4    -      -       -      -
    323A  THR*     3.7    18.2    -      -       +      -
    327A  VAL*     3.6    32.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  THR*     2.8    28.1    +      -       +      +
    200A  PHE*     1.3    72.3    -      -       +      +
    202A  ALA*     1.3    61.7    +      -       -      +
    204A  SER*     3.3     6.3    +      -       -      -
    205A  SER*     2.8    29.6    +      -       -      -
    258A  SER      4.1     2.4    -      -       -      +
    259A  LEU*     3.4    13.1    -      -       +      +
    260A  GLY*     2.8    35.3    +      -       -      +
    261A  TYR      3.0     0.9    +      -       -      -
    262A  VAL*     2.7    42.3    +      -       +      +
    263A  HIS*     2.7    35.2    +      -       -      -
    285A  LEU*     5.4     0.2    -      -       +      -
    288A  VAL*     4.8     0.7    -      -       -      +
    289A  LEU*     6.4     0.7    -      -       +      -
    292A  ASN*     5.5     0.7    +      -       -      -
    366A  ASN*     4.3     1.9    -      -       -      +
    367A  PRO*     5.8     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198A  HIS      2.9    19.7    +      -       -      +
    199A  ALA      4.0     1.3    -      -       -      +
    201A  GLU*     1.3    76.3    -      -       -      +
    203A  TYR*     1.3    64.1    +      -       -      +
    205A  SER*     3.4    15.1    +      -       -      -
    208A  ALA*     3.8     8.0    -      -       -      +
    212A  THR*     4.5     3.0    +      -       -      -
    216A  ALA*     4.7     0.9    -      -       +      -
    253A  ALA*     3.6    20.0    -      -       +      +
    254A  PHE*     3.6    29.8    -      -       -      +
    257A  ALA*     3.6    10.4    -      -       +      +
    258A  SER      3.6    10.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  ALA      2.9    19.5    +      -       -      +
    200A  PHE      3.8     3.6    -      -       -      +
    202A  ALA*     1.3    77.8    -      -       -      +
    204A  SER*     1.3    59.8    +      -       -      +
    205A  SER      3.8     0.3    +      -       -      +
    208A  ALA*     4.3     1.0    -      -       -      +
    213A  ASP*     3.4    45.6    +      -       +      +
    216A  ALA*     4.0     7.8    -      -       +      +
    217A  LEU*     3.5    28.5    -      -       +      +
    299A  ARG*     2.8    81.2    +      -       +      -
    302A  ASP*     2.7    31.5    +      -       +      +
    303A  VAL*     3.6    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  PHE*     2.9    21.2    +      -       -      -
    201A  GLU*     3.8     6.5    -      -       -      -
    203A  TYR*     1.3    79.1    -      -       -      +
    205A  SER*     1.3    65.6    +      -       -      +
    206A  THR*     4.6     0.2    -      -       -      -
    289A  LEU*     5.2     2.4    -      -       -      +
    292A  ASN*     5.1     5.9    +      -       -      +
    296A  VAL*     4.3    12.9    -      -       -      +
    299A  ARG*     4.7     6.3    -      -       -      +
    300A  LEU*     3.9    22.9    -      -       -      +
    303A  VAL*     6.1     0.3    -      -       -      +
    367A  PRO*     3.5    41.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  GLU      2.8    16.7    +      -       -      -
    202A  ALA      3.4    13.5    +      -       -      -
    203A  TYR      4.6     0.3    -      -       -      +
    204A  SER*     1.3    80.2    -      -       -      +
    206A  THR*     1.3    61.9    +      -       -      +
    207A  ALA      2.9    13.5    +      -       -      -
    208A  ALA*     3.2    16.8    +      -       -      +
    257A  ALA*     2.5    32.4    +      -       -      -
    258A  SER      4.2     3.1    -      -       -      -
    259A  LEU      4.3     1.6    -      -       -      -
    299A  ARG*     5.6     0.9    +      -       -      -
    365A  THR*     3.3    19.0    -      -       -      -
    367A  PRO*     4.9     0.2    -      -       -      -
----------------------------------------------------------
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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