Contacts of the helix formed by residues 225 - 246 (chain E) in PDB entry 6CP3


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 225 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  LYS*     5.2     0.7    -      -       -      +
    302A  TYR*     3.4    24.2    -      -       +      +
     19E  ALA*     4.1     8.3    -      -       +      -
     63E  ALA*     3.8    17.5    -      -       +      -
     64E  MET      3.8     4.7    -      -       -      +
     65E  ASP*     3.3    48.7    -      -       -      +
     66E  GLY*     4.2     1.8    -      -       -      +
    223E  ASN      4.4     0.4    -      -       -      +
    224E  GLU*     1.3    91.2    -      -       +      +
    226E  PRO*     1.3    71.6    -      -       +      +
    227E  GLY      3.2     1.8    -      -       -      +
    228E  ALA*     2.9    24.4    +      -       -      +
    229E  ARG*     3.9     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 226 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299A  ASP*     4.4     8.5    -      -       +      -
    302A  TYR*     4.2    13.2    -      -       +      -
     19E  ALA*     4.3    14.4    -      -       +      -
    225E  PRO*     1.3    86.2    -      -       +      +
    227E  GLY*     1.3    61.3    +      -       -      +
    229E  ARG*     3.3    31.3    +      -       -      +
    230E  ALA*     3.0    20.3    +      -       -      +
    264E  ALA*     3.9     6.4    -      -       -      +
    267E  GLU*     3.7    29.6    -      -       +      +
    268E  VAL*     3.5    21.6    -      -       +      +
    271E  LEU*     4.5     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 227 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19E  ALA*     5.8     0.6    -      -       -      +
     62E  ILE*     3.7    25.8    -      -       -      +
     63E  ALA      3.4    15.8    +      -       -      +
     64E  MET*     3.2    17.6    -      -       -      +
    225E  PRO*     3.1     2.0    +      -       -      +
    226E  PRO*     1.3    79.7    -      -       -      +
    228E  ALA*     1.3    62.3    +      -       -      +
    230E  ALA*     3.7     3.2    +      -       -      +
    231E  ARG*     3.4    15.8    -      -       -      +
    268E  VAL*     3.7     5.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 228 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63E  ALA      3.8     3.8    +      -       -      -
     64E  MET*     3.7    27.6    -      -       -      +
     98E  VAL*     3.9     7.5    -      -       +      +
    224E  GLU*     3.3    33.4    -      -       +      +
    225E  PRO      2.9    13.1    +      -       -      +
    227E  GLY*     1.3    76.3    -      -       -      +
    229E  ARG*     1.3    58.4    +      -       -      +
    231E  ARG*     2.8    21.8    +      -       -      +
    232E  VAL*     3.0    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 229 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301A  PHE*     3.2    37.0    -      -       -      -
    302A  TYR*     4.5     5.1    -      -       -      +
    187E  VAL*     3.6    23.2    -      -       +      +
    188E  GLY*     4.2    25.8    -      -       -      +
    220E  GLY      4.5     4.0    -      -       -      +
    221E  GLN      4.0    21.5    -      -       -      +
    222E  MET*     4.3     6.4    +      -       -      +
    224E  GLU*     3.8    17.4    +      -       +      +
    225E  PRO      3.9     1.9    +      -       -      +
    226E  PRO*     3.3    41.9    +      -       -      +
    228E  ALA*     1.3    80.6    -      -       +      +
    230E  ALA*     1.3    58.8    +      -       -      +
    231E  ARG      3.1     1.5    +      -       -      -
    232E  VAL*     3.8    12.6    +      -       +      -
    260E  ARG*     4.9    11.9    +      -       -      +
    261E  PHE*     3.8     8.8    -      -       -      -
    263E  GLN*     5.2     4.8    -      -       -      +
    264E  ALA*     3.6    19.8    -      -       +      +
    267E  GLU*     3.9     9.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 230 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226E  PRO      3.0    17.2    +      -       -      +
    227E  GLY      4.2     2.9    -      -       -      +
    228E  ALA      3.1     0.4    -      -       -      -
    229E  ARG*     1.3    78.3    -      -       -      +
    231E  ARG*     1.3    92.3    +      -       -      +
    234E  LEU*     4.1     4.7    -      -       -      +
    261E  PHE*     3.9    20.7    -      -       +      -
    264E  ALA*     3.5    17.5    -      -       +      +
    265E  GLY*     4.5     4.0    -      -       -      +
    268E  VAL*     4.0    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 231 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34E  LEU*     4.6     8.9    -      -       -      +
     49E  GLU*     2.5    37.1    +      -       -      +
     51E  ALA*     5.6     3.6    -      -       -      +
     62E  ILE*     3.6    23.2    -      -       -      +
     64E  MET*     4.0     6.7    -      -       +      -
     83E  ILE*     4.5     1.3    -      -       +      -
     98E  VAL*     3.7    12.3    -      -       +      -
    117E  ILE*     4.4     9.4    -      -       +      +
    118E  HIS*     3.5    25.2    -      -       -      -
    227E  GLY      3.4    13.2    -      -       -      +
    228E  ALA      2.8     7.3    +      -       -      +
    230E  ALA*     1.3   116.7    +      -       -      +
    232E  VAL*     1.3    60.8    +      -       -      +
    233E  ALA      3.3     2.7    -      -       -      -
    234E  LEU*     3.0    16.3    +      -       -      +
    235E  THR*     2.9    28.1    +      -       -      -
    268E  VAL*     5.0     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 232 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98E  VAL*     3.7    22.7    -      -       +      -
    185E  THR*     3.7    10.1    -      -       +      +
    186E  GLY      4.1     1.1    -      -       -      +
    187E  VAL*     3.8    19.5    -      -       +      -
    218E  VAL*     3.8    15.4    -      -       +      +
    220E  GLY*     3.6    41.1    -      -       -      +
    224E  GLU*     4.7     1.3    -      -       -      +
    228E  ALA      3.0    20.6    +      -       -      +
    229E  ARG*     3.8     7.2    +      -       -      +
    231E  ARG*     1.3    77.0    -      -       -      +
    233E  ALA*     1.3    63.0    +      -       -      +
    235E  THR*     3.1     5.5    +      -       -      -
    236E  GLY      3.0    19.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 233 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185E  THR*     4.1     7.2    -      -       -      -
    187E  VAL*     3.5    20.7    -      -       +      +
    229E  ARG      4.6     0.8    +      -       -      -
    231E  ARG      3.3     0.4    -      -       -      -
    232E  VAL*     1.3    77.0    -      -       -      +
    234E  LEU*     1.3    58.5    +      -       -      +
    236E  GLY*     3.4     1.4    +      -       -      -
    237E  LEU*     2.9    28.1    +      -       -      +
    255E  ILE*     4.4    16.2    -      -       +      +
    261E  PHE*     4.3    14.1    -      -       +      -
    292E  LEU*     3.9    32.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 234 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117E  ILE*     4.3    16.2    -      -       +      +
    118E  HIS*     3.9    31.0    -      -       +      +
    230E  ALA      4.1     7.0    -      -       -      +
    231E  ARG*     3.0    26.1    +      -       -      +
    233E  ALA*     1.3    76.5    -      -       +      +
    235E  THR*     1.3    58.7    +      -       -      +
    237E  LEU*     3.2    16.1    +      -       +      +
    238E  THR*     2.9    33.9    +      -       -      -
    261E  PHE*     5.5     6.7    -      -       +      -
    291E  LEU*     4.0    14.8    -      -       +      +
    292E  LEU*     4.1    11.4    -      -       +      -
    295E  ARG*     3.8    20.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 235 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85E  VAL*     3.8    25.2    -      -       +      +
     96E  ILE*     5.4     2.0    -      -       +      -
     97E  ASN      4.4    10.5    -      -       -      +
     98E  VAL*     3.4    21.4    +      -       -      +
    117E  ILE*     4.4    13.3    -      -       -      +
    218E  VAL*     4.0    25.6    -      -       +      -
    231E  ARG      2.9    13.9    +      -       -      -
    232E  VAL*     3.1    10.3    +      -       -      -
    234E  LEU*     1.3    75.0    -      -       -      +
    236E  GLY*     1.3    63.5    +      -       -      +
    238E  THR*     3.2     3.6    +      -       -      -
    239E  ILE*     3.0    29.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 236 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183E  VAL*     3.7    11.8    -      -       -      +
    185E  THR*     3.4    24.2    -      -       -      -
    218E  VAL*     4.4     6.8    -      -       -      +
    232E  VAL      3.0    11.1    +      -       -      -
    233E  ALA      3.7     2.2    -      -       -      -
    235E  THR*     1.3    77.4    -      -       -      +
    237E  LEU*     1.3    56.1    +      -       -      +
    239E  ILE*     3.4     1.2    +      -       -      -
    240E  ALA      3.0    22.2    +      -       -      -
    253E  LEU*     3.4    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 237 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233E  ALA      2.9    17.5    +      -       -      +
    234E  LEU*     3.4    18.8    -      -       +      +
    235E  THR      3.2     0.2    -      -       -      -
    236E  GLY*     1.3    78.1    -      -       -      +
    238E  THR*     1.3    57.0    +      -       -      +
    240E  ALA*     3.2     6.9    +      -       +      +
    241E  GLU*     2.9    33.6    +      -       +      +
    253E  LEU*     4.1    14.5    -      -       +      +
    291E  LEU      4.4     0.4    -      -       -      +
    292E  LEU*     3.9    15.5    -      -       +      +
    295E  ARG*     3.5    59.0    -      -       +      +
    296E  ILE*     3.6    29.8    -      -       +      -
    304E  VAL*     5.8     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 238 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85E  VAL*     4.0    10.8    -      -       +      -
     87E  VAL*     4.7     1.7    -      -       +      +
    115E  LYS*     3.8    23.6    -      -       +      -
    116E  PRO      3.3    20.6    -      -       -      +
    117E  ILE*     3.3    24.8    -      -       -      -
    234E  LEU      2.9    16.9    +      -       -      -
    235E  THR      3.2     4.2    +      -       -      -
    237E  LEU*     1.3    73.7    -      -       -      +
    239E  ILE*     1.3    65.7    +      -       -      +
    241E  GLU*     3.1     9.4    +      -       +      +
    242E  TYR*     3.0    24.8    +      -       -      +
    295E  ARG*     3.3    11.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 239 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85E  VAL*     5.1     6.3    -      -       +      -
     86E  PRO      4.4    13.9    -      -       -      +
     87E  VAL*     4.7    11.0    -      -       +      -
     88E  GLY      5.7     3.1    -      -       -      +
     91E  THR*     4.6     9.2    -      -       -      +
     96E  ILE*     4.4    20.0    -      -       +      -
    183E  VAL*     3.8    22.9    -      -       +      -
    216E  ALA*     4.1    15.7    -      -       +      -
    218E  VAL*     3.8    25.6    -      -       +      -
    235E  THR*     3.0    25.2    +      -       +      +
    236E  GLY      3.8     4.7    -      -       -      +
    238E  THR*     1.3    74.9    -      -       -      +
    240E  ALA*     1.3    62.3    +      -       -      +
    242E  TYR*     3.8     1.8    +      -       -      +
    243E  PHE*     3.5    30.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 240 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183E  VAL*     4.3     8.0    -      -       +      +
    236E  GLY      3.0    14.2    +      -       -      +
    237E  LEU*     3.3    13.2    -      -       +      +
    238E  THR      3.1     0.2    -      -       -      -
    239E  ILE*     1.3    78.1    -      -       -      +
    241E  GLU*     1.3    57.1    +      -       -      +
    243E  PHE*     3.2     5.2    +      -       -      +
    244E  ARG*     2.9    26.3    +      -       -      +
    251E  VAL*     4.6     8.2    -      -       +      +
    253E  LEU*     4.2    14.4    -      -       +      -
    304E  VAL*     3.7    33.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 241 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119E  ALA*     4.4    10.0    -      -       -      +
    120E  ASP      4.9     4.0    -      -       -      +
    122E  PRO*     5.6     1.0    -      -       -      +
    237E  LEU*     2.9    19.1    +      -       +      +
    238E  THR*     3.1    10.0    +      -       +      +
    240E  ALA*     1.3    77.2    -      -       +      +
    242E  TYR*     1.3    58.2    +      -       -      +
    244E  ARG*     3.6    28.5    +      -       -      +
    245E  ASP*     2.9    35.2    +      -       -      +
    295E  ARG*     2.7    65.8    +      -       -      +
    304E  VAL*     5.0     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 242 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87E  VAL*     3.6    35.4    -      -       +      -
     88E  GLY*     3.6    29.8    -      -       -      -
    112E  LYS*     5.6     5.0    -      -       -      +
    113E  LEU*     4.4    21.2    -      -       +      +
    115E  LYS*     4.9    17.3    -      -       +      +
    238E  THR*     3.0    15.5    +      -       +      +
    239E  ILE      4.3     2.7    -      -       -      +
    240E  ALA      3.3     0.2    -      -       -      -
    241E  GLU*     1.3    76.5    -      -       -      +
    243E  PHE*     1.3    70.6    +      +       -      +
    246E  GLU*     3.2    61.2    +      -       +      +
    247E  GLU*     4.0     9.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 243 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88E  GLY*     3.2    45.3    -      -       -      -
     89E  ARG*     4.3     4.9    -      -       -      -
     91E  THR*     4.2     3.6    -      -       -      -
     92E  LEU*     4.0    28.0    -      -       +      -
    181E  PHE*     4.3    26.2    -      +       +      -
    183E  VAL*     4.5    11.2    -      -       +      -
    239E  ILE*     3.5    18.7    +      -       +      +
    240E  ALA      3.2     6.6    +      -       -      +
    242E  TYR*     1.3    86.6    -      +       -      +
    244E  ARG*     1.3    64.5    +      -       -      +
    247E  GLU*     3.9    25.3    +      -       -      +
    248E  GLY      3.6    12.1    +      -       -      -
    249E  GLN*     3.8    12.9    +      -       -      +
    251E  VAL*     3.7    27.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 244 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122E  PRO*     3.8    21.7    -      -       -      +
    240E  ALA      2.9    15.7    +      -       -      +
    241E  GLU*     3.2    28.5    +      -       -      +
    243E  PHE*     1.3    76.9    -      -       -      +
    245E  ASP*     1.3    89.5    +      -       -      +
    248E  GLY*     3.1    30.0    +      -       -      -
    249E  GLN      4.7     4.0    -      -       -      +
    251E  VAL*     4.4     3.6    -      -       -      +
    295E  ARG      3.6    19.9    +      -       -      -
    297E  THR*     3.0    31.2    +      -       -      +
    299E  THR*     4.5     6.8    +      -       -      +
    301E  LYS*     3.8     3.6    -      -       -      +
    302E  GLY*     3.8     7.7    +      -       -      -
    303E  SER*     3.6    35.0    -      -       -      +
    304E  VAL*     3.7    18.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 245 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122E  PRO*     5.6     1.2    -      -       -      +
    241E  GLU*     2.9    16.7    +      -       -      +
    242E  TYR*     5.8     0.2    -      -       -      -
    244E  ARG*     1.3   116.6    +      -       -      +
    246E  GLU*     1.3    61.1    +      -       -      +
    299E  THR*     3.7    15.7    +      -       -      +
    301E  LYS*     3.5    28.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 246 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113E  LEU*     6.1     0.6    -      -       -      +
    242E  TYR*     3.2    52.7    +      -       +      +
    244E  ARG      3.2     0.6    -      -       -      -
    245E  ASP*     1.3    82.0    -      -       -      +
    247E  GLU*     1.3    73.2    +      -       +      +
    248E  GLY      3.3     1.9    +      -       -      -
    301E  LYS*     4.4     8.1    +      -       -      +
----------------------------------------------------------
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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