Contacts of the helix formed by residues 1 - 28 (chain D) in PDB entry 4IP8


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 ARG 1 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ARG*     3.9    22.1    -      -       +      +
     18B  TRP*     3.8    20.8    -      -       +      +
      0D  MET*     1.3    77.6    -      -       -      +
      2D  SER*     1.3    81.9    +      -       -      +
      4D  PHE      3.8     0.2    -      -       -      -
      5D  SER*     2.8    36.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 2 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  TRP*     4.7     2.2    +      -       -      -
     57C  ALA*     6.0     0.9    -      -       -      +
      1D  ARG*     1.3    96.6    -      -       -      +
      3D  PHE*     1.3    67.9    +      -       -      +
      5D  SER*     3.7     6.9    -      -       -      -
      6D  PHE*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 3 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     5.2     4.7    -      +       -      -
     10C  ALA*     4.7     6.1    -      -       +      -
     11C  PHE*     4.6    14.1    -      +       -      -
     14C  ALA*     5.2     4.9    -      -       +      -
     53C  TRP*     3.6    47.7    -      +       +      +
     54C  ALA*     3.8    24.5    -      -       +      -
     57C  ALA*     3.8    29.2    -      -       +      -
     58C  ILE*     5.7     1.1    -      -       +      -
      0D  MET*     3.2    33.6    +      -       +      +
      2D  SER*     1.3    85.0    +      -       -      +
      4D  PHE*     1.3    81.7    +      +       -      +
      6D  PHE      3.6     0.2    +      -       -      -
      7D  LEU*     3.4    45.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 4 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      0A  MET*     4.9     9.6    -      -       +      -
      3A  PHE*     4.8     7.4    -      +       -      -
      4A  PHE*     4.9    12.3    -      +       -      -
     11B  PHE*     3.4    48.9    -      +       -      +
     14B  ALA*     3.6    35.9    -      -       +      -
     15B  ARG*     4.0    13.1    -      -       +      +
     18B  TRP*     5.3     2.2    -      +       +      -
     58B  ILE*     5.2     3.4    -      -       +      -
    203C  P4C      6.3     0.9    -      -       -      -
      0D  MET*     3.0    58.6    +      -       +      +
      3D  PHE*     1.3    93.5    -      +       -      +
      5D  SER*     1.3    61.4    +      -       -      +
      7D  LEU*     3.4     3.6    +      -       -      +
      8D  GLY*     2.9    26.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 5 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ARG*     3.6    23.7    +      -       -      +
      1D  ARG*     2.8    27.1    +      -       -      -
      2D  SER*     3.7     9.6    -      -       -      -
      3D  PHE      3.3     0.2    -      -       -      -
      4D  PHE*     1.3    77.6    -      -       -      +
      6D  PHE*     1.3    57.1    +      -       -      +
      8D  GLY*     3.3     2.4    +      -       -      -
      9D  GLU*     3.0    47.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 6 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6C  PHE*     4.7     8.5    -      +       -      -
     53C  TRP*     3.7    28.9    -      +       +      -
    202C  P4C      4.0    26.5    -      -       -      +
      2D  SER      2.9    17.9    +      -       -      +
      3D  PHE      3.9     2.7    -      -       -      +
      5D  SER*     1.3    77.1    -      -       -      +
      7D  LEU*     1.3    61.2    +      -       +      +
      9D  GLU*     3.5     9.7    +      -       -      +
     10D  ALA*     3.1    23.1    +      -       +      +
     49D  PRO*     3.9    13.7    -      -       +      -
     50D  GLY*     3.5    31.5    -      -       -      -
     53D  TRP*     3.7    38.6    -      +       -      -
    202D  P4C      3.8    24.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 7 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  PHE*     3.7    35.4    -      -       +      -
      7C  LEU*     3.7    30.5    -      -       +      -
     10C  ALA*     5.9     0.7    -      -       +      -
     11C  PHE*     4.0    11.4    -      -       +      -
     53C  TRP*     4.0    18.2    -      -       +      -
      3D  PHE*     3.4    46.8    +      -       +      +
      4D  PHE*     3.4     5.8    +      -       +      +
      5D  SER      3.3     0.4    -      -       -      -
      6D  PHE*     1.3    81.0    -      -       +      +
      8D  GLY*     1.3    65.1    +      -       -      +
     10D  ALA*     3.2     5.3    +      -       +      +
     11D  PHE*     3.0    35.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 8 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  GLY*     5.0     4.9    -      -       -      -
     11B  PHE*     4.1    12.9    -      -       -      +
     12B  ASP*     4.5    13.5    -      -       -      -
     15B  ARG*     6.1     0.4    -      -       -      -
      4D  PHE      2.9    17.8    +      -       -      -
      5D  SER*     3.7     2.2    -      -       -      -
      7D  LEU*     1.3    76.9    -      -       -      +
      9D  GLU*     1.3    54.7    +      -       -      +
     11D  PHE*     3.4     3.6    +      -       -      +
     12D  ASP*     2.9    38.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 9 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5D  SER*     3.0    35.7    +      -       -      +
      6D  PHE*     3.7     8.0    -      -       -      +
      8D  GLY*     1.3    76.8    -      -       -      +
     10D  ALA*     1.3    52.1    +      -       -      +
     12D  ASP*     3.8     3.1    -      -       -      +
     13D  GLY*     2.8    32.4    +      -       -      -
     47D  ARG*     3.4    31.9    -      -       -      +
     48D  GLY*     4.3     0.2    -      -       -      -
     49D  PRO*     3.2    18.9    -      -       -      +
     50D  GLY*     3.0    29.7    +      -       -      -
     51D  GLY*     3.6    11.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 10 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  PHE*     4.7     6.5    -      -       +      -
      6D  PHE*     3.1    15.9    +      -       +      +
      7D  LEU*     3.2    11.9    +      -       +      +
      9D  GLU*     1.3    78.1    -      -       -      +
     11D  PHE*     1.3    63.7    +      -       +      +
     14D  ALA*     2.8    25.8    +      -       -      +
     50D  GLY      3.3    20.4    -      -       -      +
     53D  TRP*     3.9    25.1    -      -       +      -
     54D  ALA*     3.3    12.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 11 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  PHE*     3.4    35.4    -      +       -      -
      4B  PHE*     3.7    42.0    -      +       -      +
      7B  LEU*     3.9    15.5    -      -       +      -
      8B  GLY*     3.9     9.0    -      -       -      +
     11B  PHE*     3.1    40.4    -      +       -      -
      3C  PHE*     4.7     8.1    -      +       -      -
      7C  LEU*     4.0    23.8    -      -       +      -
     11C  PHE*     5.2     0.2    -      +       -      -
      7D  LEU*     3.0    33.2    +      -       +      +
      8D  GLY      4.1     0.2    -      -       -      +
     10D  ALA*     1.3    79.0    -      -       +      +
     12D  ASP*     1.3    63.3    +      -       -      +
     14D  ALA*     3.5     5.3    +      -       +      +
     15D  ARG*     3.0    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 12 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  GLY*     4.2    13.0    -      -       -      -
     12B  ASP*     4.4    14.5    -      -       -      +
      8D  GLY      2.9    22.3    +      -       -      +
      9D  GLU*     3.8     3.0    -      -       -      +
     11D  PHE*     1.3    75.7    -      -       -      +
     13D  GLY*     1.3    57.9    +      -       -      +
     15D  ARG*     2.8    31.7    +      -       -      +
     16D  ASP*     2.9    33.4    +      -       -      +
     47D  ARG*     3.5    37.2    +      -       +      +
    201D  SO4      4.0     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 13 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9D  GLU      2.8    18.1    +      -       -      -
     10D  ALA      3.7     1.3    -      -       -      -
     12D  ASP*     1.3    74.8    -      -       -      +
     14D  ALA*     1.3    64.7    +      -       -      +
     16D  ASP*     3.0     6.1    +      -       -      +
     17D  MET*     3.0    25.5    +      -       -      +
     44D  ALA*     3.6    27.2    -      -       -      +
     47D  ARG*     4.0     2.6    -      -       -      +
     51D  GLY*     4.2     4.9    -      -       -      -
     54D  ALA*     4.3     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 14 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  PHE*     3.6    36.3    -      -       +      -
      3C  PHE*     5.2     4.5    -      -       +      -
     10D  ALA      2.8    18.1    +      -       -      +
     11D  PHE*     3.6     8.3    -      -       +      +
     13D  GLY*     1.3    74.5    -      -       -      +
     15D  ARG*     1.3    57.9    +      -       -      +
     17D  MET*     3.2     3.6    +      -       -      +
     18D  TRP*     3.0    28.9    +      -       -      +
     54D  ALA*     3.9     2.8    -      -       +      +
     58D  ILE*     3.6    23.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 15 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  ARG*     4.5    14.6    -      -       +      +
      4B  PHE*     4.1    12.9    +      -       +      -
      5B  SER*     3.2    35.8    +      -       -      +
      8B  GLY*     5.5     0.8    -      -       -      -
     11D  PHE      3.0    14.6    +      -       -      +
     12D  ASP*     2.8    50.6    +      -       -      +
     14D  ALA*     1.3    77.6    -      -       -      +
     16D  ASP*     1.3    58.1    +      -       -      +
     18D  TRP*     3.5     4.6    +      -       -      +
     19D  ARG*     2.9    32.6    +      -       +      +
     47D  ARG*     3.8     4.6    -      -       -      +
    201D  SO4      2.5    50.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 16 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12D  ASP      2.9    13.5    +      -       -      +
     13D  GLY      3.0     7.2    +      -       -      +
     15D  ARG*     1.3    77.2    -      -       -      +
     17D  MET*     1.3    65.5    +      -       -      +
     19D  ARG*     3.2    28.4    +      -       -      +
     20D  ALA*     3.0    22.5    +      -       -      +
     39D  ARG*     4.9     0.3    +      -       -      -
     40D  GLY*     4.3     4.2    -      -       -      -
     43D  ASP*     3.0    42.5    -      -       +      +
     44D  ALA*     3.5     6.2    +      -       -      +
     47D  ARG*     2.9    41.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 17 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13D  GLY      3.0    16.8    +      -       -      +
     14D  ALA      3.5     6.5    -      -       -      +
     16D  ASP*     1.3    77.0    -      -       -      +
     18D  TRP*     1.3    63.2    +      -       -      +
     20D  ALA*     3.1     7.5    +      -       -      +
     21D  TYR      3.1    17.2    +      -       -      -
     40D  GLY*     3.3    29.4    -      -       -      +
     41D  ASN*     3.5    15.0    -      -       -      +
     44D  ALA*     4.2     2.2    -      -       +      -
     55D  ALA*     4.0    22.0    -      -       -      +
     58D  ILE*     3.9    27.6    -      -       +      -
     59D  SER*     3.6    33.0    -      -       -      +
    203D  P4C      3.4    33.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 18 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  ALA*     3.9    28.3    -      -       +      -
     64A  ASN*     4.4    16.1    -      -       +      +
     65A  ILE*     4.3    15.0    -      -       +      -
      0B  MET*     3.5    43.1    -      -       +      +
      1B  ARG*     3.8    29.2    -      -       +      +
      4B  PHE*     4.9     5.2    -      +       +      -
     14D  ALA      3.0    15.8    +      -       -      +
     15D  ARG*     4.0     6.5    -      -       -      +
     17D  MET*     1.3    77.2    -      -       -      +
     19D  ARG*     1.3    54.2    +      -       -      +
     21D  TYR*     3.2    35.1    +      +       -      +
     22D  SER*     2.7    46.3    +      -       -      -
    203D  P4C      4.2    19.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 19 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15D  ARG*     2.9    22.2    +      -       +      +
     16D  ASP*     3.2    29.3    +      -       -      +
     17D  MET      3.2     0.2    -      -       -      -
     18D  TRP*     1.3    75.4    -      -       -      +
     20D  ALA*     1.3    59.5    +      -       -      +
     22D  SER*     3.7     7.6    -      -       -      -
     23D  ASP*     2.9    39.4    +      -       -      +
     39D  ARG*     3.6    23.0    -      -       -      +
     43D  ASP*     4.0    17.7    +      -       -      -
     47D  ARG*     5.1     3.4    -      -       -      +
    201D  SO4      5.7     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 20 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16D  ASP      3.0     6.6    +      -       -      +
     17D  MET      3.1     9.6    +      -       -      +
     19D  ARG*     1.3    78.2    -      -       -      +
     21D  TYR*     1.3    62.5    +      -       -      +
     23D  ASP*     3.3     1.9    +      -       -      +
     24D  MET*     2.9    24.9    +      -       -      +
     36D  PHE*     3.5    32.0    -      -       +      +
     39D  ARG*     3.5    15.7    -      -       -      +
     40D  GLY*     3.5    22.2    -      -       -      +
    203D  P4C      4.4     5.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 21 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ASN*     2.8    38.5    +      -       -      -
     65A  ILE*     3.5    15.6    -      -       +      -
     68A  PHE*     3.6    21.5    -      +       -      +
     69A  PHE*     6.3     0.4    -      +       -      -
     17D  MET      3.1     3.0    +      -       -      -
     18D  TRP*     3.4    42.2    -      +       -      +
     20D  ALA*     1.3    79.3    -      -       -      +
     22D  SER*     1.3    67.9    +      -       -      +
     24D  MET*     3.1    24.6    +      -       +      +
     25D  ARG*     3.0    41.5    +      -       +      +
    203D  P4C      3.7    47.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 22 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ASN*     5.6     2.6    +      -       -      -
     18D  TRP*     2.7    41.8    +      -       -      -
     19D  ARG*     3.7     9.6    -      -       -      -
     21D  TYR*     1.3    78.9    -      -       -      +
     23D  ASP*     1.3    60.7    +      -       -      +
     25D  ARG*     3.3     7.6    +      -       -      +
     26D  GLU*     3.0    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 23 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19D  ARG*     2.9    31.2    +      -       -      +
     20D  ALA      3.7     1.8    -      -       -      +
     22D  SER*     1.3    73.9    -      -       -      +
     24D  MET*     1.3    59.8    +      -       -      +
     26D  GLU*     3.1     9.8    +      -       -      +
     27D  ALA*     2.8    34.1    +      -       -      +
     36D  PHE*     3.6    19.3    -      -       +      -
     39D  ARG*     2.9    28.7    +      -       -      +
    103D  LYS      4.7     3.1    -      -       -      +
    104D  TYR*     3.7    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 24 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68A  PHE*     4.6    22.8    -      -       +      -
     20D  ALA      2.9    12.1    +      -       -      +
     21D  TYR*     3.1    25.3    +      -       +      +
     23D  ASP*     1.3    76.2    -      -       -      +
     25D  ARG*     1.3    63.9    +      -       -      +
     27D  ALA*     3.7     1.2    +      -       -      +
     28D  ASN*     3.3    18.9    +      -       -      -
     29D  TYR      4.6     1.2    +      -       -      -
     32D  SER*     5.1     3.7    +      -       -      +
     33D  ASP*     3.8    35.7    -      -       -      +
     36D  PHE*     3.5    31.0    -      -       +      -
     37D  HIS*     4.5    10.3    -      -       +      -
     62D  ARG*     6.0     1.3    -      -       +      -
     66D  GLN*     6.0     2.5    -      -       -      +
    203D  P4C      3.4    26.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ASN*     2.9    41.4    +      -       -      +
     67A  ARG*     3.5    35.6    +      -       -      +
     68A  PHE*     3.2    48.1    -      -       +      +
     21D  TYR*     3.0    35.1    +      -       +      +
     22D  SER*     3.4    11.9    -      -       -      +
     23D  ASP      3.1     0.2    -      -       -      -
     24D  MET*     1.3    77.5    -      -       -      +
     26D  GLU*     1.3    63.8    +      -       -      +
     28D  ASN*     3.5    14.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22D  SER      3.0    15.5    +      -       -      +
     23D  ASP*     3.1    13.7    +      -       -      +
     25D  ARG*     1.3    77.6    -      -       -      +
     27D  ALA*     1.3    61.7    +      -       -      +
     28D  ASN*     3.3     4.9    +      -       -      +
    103D  LYS*     2.6    31.7    +      -       -      -
    104D  TYR*     3.1    16.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23D  ASP      2.8    21.0    +      -       -      +
     24D  MET      4.2     2.5    -      -       -      +
     26D  GLU*     1.3    73.3    -      -       -      +
     28D  ASN*     1.3    70.4    +      -       -      +
     29D  TYR*     2.9    23.4    +      -       +      +
     36D  PHE*     4.1    12.8    -      -       +      -
    100D  LEU*     4.3     1.8    -      -       +      -
    101D  PRO*     5.6     0.2    -      -       +      -
    104D  TYR*     3.5    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  MET      3.3    13.0    +      -       -      -
     25D  ARG      3.5    11.6    +      -       -      +
     26D  GLU      3.2     5.6    -      -       -      +
     27D  ALA*     1.3    76.9    -      -       -      +
     29D  TYR*     1.3    58.2    +      -       -      +
     30D  ILE*     4.0     5.0    +      -       -      +
----------------------------------------------------------
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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