Contacts of the helix formed by residues 219 - 243 (chain B) in PDB entry 3LRB


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 ASN 219 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217B  VAL*     4.4     2.2    -      -       -      +
    218B  LYS*     1.3    83.3    -      -       -      +
    220B  PRO*     1.3    63.6    -      -       +      +
    221B  LYS*     4.6     2.0    -      -       +      +
    222B  ARG*     4.2    24.0    -      -       +      +
    223B  ASN*     2.7    56.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  SER      5.0     0.5    -      -       -      +
     68B  PRO*     3.6    40.1    -      -       +      +
    214B  ALA*     4.0    19.1    -      -       -      +
    215B  GLY*     5.7     0.4    -      -       -      -
    217B  VAL*     4.1     2.2    -      -       +      +
    218B  LYS      3.5    10.5    -      -       -      +
    219B  ASN*     1.3    81.5    -      -       +      +
    221B  LYS*     1.3    59.4    +      -       +      +
    222B  ARG      2.8     7.8    +      -       -      -
    224B  VAL*     3.1    40.6    +      -       +      +
    225B  PRO*     3.3     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  SER      4.8     3.1    -      -       -      -
     65B  PHE*     3.4    47.6    -      -       +      +
     66B  LEU*     3.5    21.9    +      -       -      +
     68B  PRO*     4.2    16.6    -      -       +      -
    219B  ASN*     3.4     2.3    -      -       +      +
    220B  PRO*     1.3    79.3    -      -       +      +
    222B  ARG*     1.3    65.4    +      -       +      +
    225B  PRO*     4.4     3.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  PHE*     6.2     0.2    -      -       +      -
    219B  ASN*     3.5    19.0    +      -       +      +
    220B  PRO      2.8     1.2    +      -       -      -
    221B  LYS*     1.3    87.9    -      -       +      +
    223B  ASN*     1.3    65.0    +      -       -      +
    224B  VAL      3.5     0.7    -      -       -      -
    225B  PRO*     3.5     7.0    -      -       -      +
    226B  ILE*     3.0    33.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  LEU*     3.2    47.3    +      -       +      +
    217B  VAL*     3.6    16.6    -      -       +      -
    218B  LYS*     3.1    14.8    -      -       -      +
    219B  ASN*     2.7    59.1    +      -       -      +
    222B  ARG*     1.3    77.6    -      -       -      +
    224B  VAL*     1.3    55.0    +      -       -      +
    226B  ILE*     3.5     3.6    -      -       -      +
    227B  ALA*     2.9    27.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  VAL*     5.9     0.2    -      -       -      -
     64B  SER*     3.1    33.0    -      -       -      +
     68B  PRO*     5.0     2.5    -      -       +      -
    210B  ALA*     3.4    31.8    -      -       +      +
    211B  SER*     4.1     1.8    -      -       -      +
    214B  ALA*     4.6     7.6    -      -       -      -
    217B  VAL*     4.6    17.7    -      -       +      -
    220B  PRO*     3.1    36.1    +      -       +      +
    223B  ASN*     1.3    73.2    -      -       -      +
    225B  PRO*     1.3    73.0    -      -       +      +
    227B  ALA*     3.1     9.1    +      -       -      +
    228B  THR*     3.0    19.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61B  ALA*     3.1    33.0    -      -       +      +
     62B  LYS*     4.1    15.9    -      -       -      +
     64B  SER*     4.2     3.6    -      -       -      +
     65B  PHE*     4.1    21.3    -      -       +      -
    220B  PRO      3.3    10.1    -      -       -      +
    221B  LYS      4.5     4.9    -      -       -      +
    222B  ARG*     3.5    12.6    -      -       -      +
    224B  VAL*     1.3    89.3    -      -       +      +
    226B  ILE*     1.3    68.3    +      -       +      +
    227B  ALA      2.8     1.6    -      -       -      -
    228B  THR*     2.5    24.6    +      -       +      -
    229B  ILE*     2.9    15.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  LEU*     3.5    35.2    -      -       +      -
     16B  THR*     4.4     3.3    -      -       +      +
     62B  LYS*     5.6     0.2    -      -       -      +
    222B  ARG*     3.0    27.4    -      -       +      +
    223B  ASN*     3.5     9.6    -      -       -      +
    225B  PRO*     1.3    78.3    -      -       +      +
    227B  ALA*     1.3    57.0    +      -       -      +
    229B  ILE*     3.8     6.5    -      -       -      +
    230B  GLY*     2.8    30.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 227 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  VAL*     4.1     9.6    -      -       +      -
     16B  THR*     3.3    28.4    -      -       +      +
     19B  VAL*     3.8    13.0    -      -       +      +
    210B  ALA*     3.7    13.2    -      -       +      -
    223B  ASN      2.9    15.0    +      -       -      +
    224B  VAL*     3.1    11.2    -      -       -      +
    225B  PRO      2.6     4.2    +      -       -      -
    226B  ILE*     1.3    71.0    -      -       -      +
    228B  THR*     1.3    68.1    +      -       -      +
    231B  GLY*     2.8    24.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  VAL*     3.7    11.6    -      -       -      +
     57B  SER      3.3    22.0    +      -       -      -
     60B  TYR*     5.0     2.7    -      -       +      -
     61B  ALA*     3.4    17.0    -      -       -      +
     64B  SER*     4.9     0.7    -      -       -      +
    207B  VAL      3.9    18.2    -      -       -      +
    210B  ALA*     3.3    16.2    -      -       +      -
    211B  SER      4.4     2.9    -      -       -      +
    224B  VAL*     3.0    21.5    +      -       +      +
    225B  PRO*     2.5    17.6    +      -       +      +
    227B  ALA*     1.3    71.3    -      -       -      +
    229B  ILE*     1.3    56.7    +      -       -      +
    231B  GLY*     3.8     0.5    -      -       -      -
    232B  VAL*     2.7    41.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 229 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  SER*     3.9    16.8    -      -       -      +
     58B  MET*     4.5    13.9    -      -       +      -
     61B  ALA*     3.3    28.3    -      -       +      -
     62B  LYS*     3.9    17.9    -      -       -      +
    225B  PRO      2.9    10.3    +      -       -      +
    226B  ILE*     4.0     6.3    -      -       -      +
    228B  THR*     1.3    81.8    +      -       -      +
    230B  GLY*     1.3    61.7    +      -       -      +
    232B  VAL*     3.9     0.6    -      -       -      +
    233B  LEU*     2.8    57.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 230 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  THR*     5.0     5.2    -      -       -      -
    226B  ILE*     2.8    20.4    +      -       -      -
    227B  ALA      3.9     0.2    -      -       -      -
    229B  ILE*     1.3    77.3    -      -       -      +
    231B  GLY*     1.3    64.3    +      -       -      +
    233B  LEU*     3.9     5.6    -      -       -      +
    234B  ILE*     2.9    37.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  THR*     3.8     7.2    +      -       -      -
     19B  VAL*     4.2     3.4    -      -       -      -
     20B  SER*     3.5    34.8    +      -       -      -
     23B  ILE*     6.0     0.2    -      -       -      -
    227B  ALA      2.8    20.8    +      -       -      -
    228B  THR      3.8     0.4    -      -       -      -
    230B  GLY*     1.3    74.1    -      -       -      +
    232B  VAL*     1.3    57.3    +      -       -      +
    234B  ILE*     3.3     3.3    -      -       -      +
    235B  ALA*     2.8    29.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  VAL*     4.9     2.5    -      -       +      -
     23B  ILE*     5.5     2.7    -      -       +      -
     53B  ALA      4.5     3.6    -      -       -      +
     54B  LEU*     4.4    14.8    -      -       +      -
     57B  SER*     3.3    24.7    -      -       -      +
    204B  PHE*     3.3    30.7    -      -       +      -
    207B  VAL*     3.2    31.0    -      -       +      -
    228B  THR*     2.7    32.7    +      -       -      +
    229B  ILE*     4.0     2.5    -      -       -      +
    231B  GLY*     1.3    70.2    -      -       -      +
    233B  LEU*     1.3    56.8    +      -       -      +
    235B  ALA*     2.8     8.3    +      -       -      +
    236B  ALA*     2.6    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54B  LEU*     3.4    33.4    -      -       +      -
    229B  ILE*     2.8    46.0    +      -       +      +
    230B  GLY*     3.9     5.4    -      -       -      +
    232B  VAL*     1.3    72.2    -      -       -      +
    234B  ILE*     1.3    63.4    +      -       +      +
    236B  ALA*     3.8     5.2    -      -       +      +
    237B  VAL*     2.9    30.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  THR*     5.0     9.4    -      -       -      +
     17B  LEU*     5.7     6.3    -      -       +      -
     20B  SER*     2.9    28.9    -      -       -      +
     24B  MET*     5.0     2.0    -      -       +      -
    159B  LEU*     5.1    12.6    -      -       +      -
    230B  GLY*     2.9    31.1    +      -       -      +
    231B  GLY*     3.3     4.3    -      -       -      +
    233B  LEU*     1.3    75.8    -      -       +      +
    235B  ALA*     1.3    58.0    +      -       -      +
    237B  VAL*     3.9     3.5    -      -       -      -
    238B  CYS*     2.9    52.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 235 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  SER*     4.5     3.4    -      -       -      +
     23B  ILE*     3.3    35.0    -      -       +      -
     24B  MET*     4.2    17.5    -      -       -      +
    204B  PHE*     4.7     1.8    -      -       +      -
    231B  GLY      2.8    13.7    +      -       -      +
    232B  VAL*     2.8    11.7    +      -       -      +
    234B  ILE*     1.3    76.7    -      -       -      +
    236B  ALA*     1.3    57.1    +      -       -      +
    238B  CYS*     3.7     1.4    -      -       -      +
    239B  TYR*     2.9    40.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 236 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  ILE*     3.6    38.4    -      -       +      -
     54B  LEU*     5.1     3.8    -      -       +      -
    204B  PHE*     3.8    10.3    -      -       +      -
    232B  VAL      2.6    18.3    +      -       -      +
    233B  LEU*     3.8     8.3    -      -       +      +
    235B  ALA*     1.3    72.1    -      -       -      +
    237B  VAL*     1.3    64.3    +      -       -      +
    239B  TYR*     2.9    28.1    -      -       -      +
    240B  VAL*     2.9    11.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 237 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163B  VAL*     6.4     2.2    -      -       +      -
    166B  ALA*     5.9     1.1    -      -       +      -
    233B  LEU      2.9    18.1    +      -       -      +
    234B  ILE*     3.9     4.5    -      -       -      +
    236B  ALA*     1.3    74.8    -      -       -      +
    238B  CYS*     1.3    72.6    +      -       -      +
    240B  VAL*     3.0    15.3    +      -       -      -
    241B  LEU*     3.0    38.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 238 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  MET*     3.2    37.2    -      -       +      -
    159B  LEU*     4.6     2.0    -      -       -      -
    162B  ILE*     3.9    10.5    -      -       +      +
    163B  VAL*     4.1    22.9    -      -       -      -
    234B  ILE*     2.9    38.3    +      -       -      +
    235B  ALA      3.7     2.7    -      -       -      +
    237B  VAL*     1.3    82.9    -      -       -      +
    239B  TYR*     1.3    54.2    +      -       -      +
    241B  LEU*     4.0     2.4    -      -       -      +
    242B  SER*     2.5    39.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  ILE*     3.0    20.8    +      -       +      -
     24B  MET*     3.1    21.4    +      -       -      -
     27B  GLY*     5.7     1.0    -      -       -      -
     28B  VAL*     3.9    12.1    +      -       +      -
     31B  LEU*     3.2    33.2    -      -       +      -
     46B  TRP*     3.8    19.3    -      +       +      -
    203B  SER*     2.6    25.3    +      -       -      -
    204B  PHE*     3.6    42.5    -      +       -      -
    235B  ALA*     2.9    29.3    +      -       +      -
    236B  ALA*     2.9    11.9    -      -       -      +
    238B  CYS*     1.3    75.2    -      -       -      +
    240B  VAL*     1.3    55.4    +      -       -      +
    242B  SER*     2.7    18.2    +      -       -      -
    243B  THR*     3.0    22.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  ILE*     5.7     6.5    -      -       +      -
     46B  TRP*     4.4    21.8    -      -       +      -
     50B  ILE*     3.4    31.9    -      -       +      -
    236B  ALA      2.9     8.4    +      -       -      +
    237B  VAL*     3.0     6.9    +      -       -      +
    239B  TYR*     1.3    73.2    -      -       -      +
    241B  LEU*     1.3    73.7    +      -       +      +
    242B  SER      2.9     5.9    +      -       -      -
    243B  THR*     3.4     3.8    +      -       -      -
    244B  THR*     3.0    42.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  ILE*     4.1    15.4    -      -       -      +
    166B  ALA*     3.7    45.8    -      -       +      +
    237B  VAL*     3.0    32.7    +      -       +      +
    238B  CYS      4.6     0.9    -      -       -      +
    240B  VAL*     1.3    86.8    -      -       +      +
    242B  SER*     1.3    58.4    +      -       -      +
    244B  THR*     3.3    15.9    +      -       -      +
    245B  ALA      4.3     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  VAL*     4.4    12.3    -      -       -      +
     32B  PRO*     5.5     1.8    -      -       -      +
    162B  ILE*     4.2    26.2    -      -       -      -
    165B  ILE*     4.9     9.1    -      -       -      +
    238B  CYS      2.5    23.8    +      -       -      -
    239B  TYR*     2.7    17.7    +      -       -      -
    240B  VAL      2.9     1.4    -      -       -      -
    241B  LEU*     1.3    78.3    -      -       -      +
    243B  THR*     1.3    63.9    +      -       -      +
    244B  THR      3.1     8.0    +      -       -      -
    245B  ALA*     3.4    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  VAL*     5.8     2.0    -      -       +      -
     31B  LEU*     4.2    11.9    -      -       +      -
     32B  PRO*     3.4    42.4    -      -       +      -
     35B  LEU*     4.5    10.9    -      -       +      +
     41B  ILE*     6.0     1.2    -      -       -      +
     43B  ILE*     6.0     1.4    -      -       -      +
     46B  TRP*     3.2    33.5    +      -       +      -
    239B  TYR      3.0    18.4    +      -       -      +
    240B  VAL*     3.7     3.1    +      -       -      -
    242B  SER*     1.3    78.3    -      -       -      +
    244B  THR*     1.3    61.9    +      -       -      +
    245B  ALA      3.5     1.6    -      -       -      -
    246B  ILE*     3.4    19.5    -      -       -      +
----------------------------------------------------------
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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