Contacts of the helix formed by residues 1 - 31 (chain D) in PDB entry 2ONK


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 MET 1 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  ARG*     6.2     2.0    -      -       -      +
      2D  ARG*     1.3    71.6    +      -       +      +
      3D  LEU*     3.3     9.3    -      -       -      +
      4D  LEU*     3.3    40.9    -      -       +      +
      5D  PHE*     4.1     1.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 2 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  PRO*     2.8    42.8    -      -       -      +
     68A  GLU*     2.5    35.0    +      -       -      +
     69A  ARG*     4.2    19.1    -      -       -      +
    163C  ARG*     4.2     6.6    -      -       -      +
    168C  SER*     5.2     3.8    -      -       -      -
    169C  PRO*     4.2    24.3    -      -       +      +
      1D  MET*     1.3    79.2    -      -       +      +
      3D  LEU*     1.3    62.0    +      -       +      +
      4D  LEU      3.0     2.2    -      -       -      -
      5D  PHE*     3.1    10.2    +      -       +      +
      6D  SER*     2.7    30.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 3 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1D  MET      3.3     5.7    -      -       -      +
      2D  ARG*     1.3    79.2    -      -       -      +
      4D  LEU*     1.3    58.4    +      -       +      +
      6D  SER*     3.7    12.8    -      -       -      +
      7D  ALA*     2.7    40.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 4 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1D  MET*     3.3    39.7    -      -       +      +
      2D  ARG      3.0     0.2    -      -       -      -
      3D  LEU*     1.3    82.6    -      -       +      +
      5D  PHE*     1.3    56.5    +      -       -      +
      7D  ALA*     4.2     3.4    -      -       +      +
      8D  LEU*     2.8    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 5 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  TYR*     5.5     3.6    -      +       -      -
    169C  PRO*     4.0    16.6    -      -       +      -
    170C  LEU*     3.3    60.8    -      -       +      +
    173C  PHE*     3.8    26.7    -      +       +      -
    174C  PHE*     4.2     8.7    -      +       -      -
      1D  MET      4.1     1.3    +      -       -      +
      2D  ARG*     3.1    11.8    +      -       +      +
      4D  LEU*     1.3    75.2    -      -       -      +
      6D  SER*     1.3    67.7    +      -       -      +
      7D  ALA      3.1     1.6    -      -       -      -
      8D  LEU*     3.6    18.1    -      -       +      +
      9D  LEU*     3.1    63.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 6 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  ILE*     5.6     1.0    -      -       -      +
     79C  LYS*     4.0    21.3    +      -       -      +
      2D  ARG*     2.7    18.9    +      -       -      -
      3D  LEU*     3.9    16.7    -      -       -      +
      5D  PHE*     1.3    82.2    -      -       -      +
      7D  ALA*     1.3    56.7    +      -       -      +
      9D  LEU*     4.3     5.4    -      -       -      +
     10D  ALA*     3.3    21.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 7 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3D  LEU*     2.7    24.1    +      -       +      +
      4D  LEU*     4.2     4.3    -      -       +      +
      6D  SER*     1.3    73.2    -      -       -      +
      8D  LEU*     1.3    56.3    +      -       -      +
      9D  LEU      3.1     1.6    -      -       -      -
     10D  ALA*     3.5     6.0    -      -       -      +
     11D  LEU*     2.5    40.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 8 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170C  LEU*     5.9     0.9    -      -       +      -
    174C  PHE*     6.2     2.9    -      -       +      -
      4D  LEU      2.8    21.6    +      -       -      +
      5D  PHE*     3.6    25.4    -      -       +      +
      7D  ALA*     1.3    77.6    -      -       -      +
      9D  LEU*     1.3    61.1    -      -       +      +
     11D  LEU*     3.7     9.9    -      -       +      +
     12D  LEU*     3.0    54.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 9 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  PRO*     3.8    28.8    -      -       +      +
     74C  TYR*     4.2    24.7    -      -       +      -
     75C  ILE*     4.3    15.5    -      -       +      -
     79C  LYS*     6.0     4.3    -      -       -      +
    173C  PHE*     4.9    12.1    -      -       +      -
      5D  PHE*     3.1    56.9    +      -       +      +
      6D  SER*     4.3     5.6    -      -       -      +
      8D  LEU*     1.3    87.0    -      -       +      +
     10D  ALA*     1.3    54.3    +      -       -      +
     12D  LEU*     5.6     2.2    -      -       +      -
     13D  SER*     2.7    36.2    +      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
     75C  ILE*     4.3     9.6    -      -       +      +
      6D  SER      3.3    18.8    +      -       -      +
      7D  ALA*     3.0     8.2    +      -       -      +
      9D  LEU*     1.3    80.0    -      -       -      +
     11D  LEU*     1.3    56.5    +      -       -      +
     13D  SER*     3.1     7.9    +      -       -      -
     14D  SER*     2.9    30.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 11 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7D  ALA*     2.5    23.0    +      -       +      +
      8D  LEU*     3.7    11.9    -      -       +      +
     10D  ALA*     1.3    69.7    -      -       -      +
     12D  LEU*     1.3    75.3    +      -       +      +
     14D  SER*     2.6    26.0    +      -       -      +
     15D  ILE*     3.1    26.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 12 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  ILE*     3.6    22.2    -      -       +      +
     68C  PHE*     3.3    33.7    -      -       +      -
     71C  PRO*     3.8    20.4    -      -       +      -
      8D  LEU*     3.0    36.8    +      -       +      +
      9D  LEU*     3.9     3.8    -      -       +      +
     11D  LEU*     1.3    87.6    -      -       +      +
     13D  SER*     1.3    59.6    +      -       -      +
     15D  ILE*     3.2    15.2    +      -       +      +
     16D  ILE*     2.9    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 13 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  PHE      4.0     1.5    +      -       -      -
     71C  PRO      4.2     0.4    -      -       -      -
     72C  LEU*     3.5    42.3    -      -       -      +
     75C  ILE*     3.7     8.9    -      -       -      +
      9D  LEU      2.7    23.6    +      -       -      -
     10D  ALA*     3.1    15.6    +      -       -      -
     12D  LEU*     1.3    72.9    -      -       -      +
     14D  SER*     1.3    59.3    +      -       -      +
     15D  ILE      3.0     5.6    -      -       -      -
     16D  ILE*     3.1    20.5    -      -       -      +
     17D  LEU*     3.3    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 14 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10D  ALA      2.9    16.3    +      -       -      -
     11D  LEU*     2.6    31.4    +      -       -      +
     13D  SER*     1.3    76.2    +      -       -      +
     15D  ILE*     1.3    63.9    +      -       -      +
     17D  LEU*     3.8    13.7    -      -       -      +
     18D  LEU*     3.2    29.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 15 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  PHE*     3.5    28.7    -      -       +      -
     11D  LEU*     3.1    34.5    -      -       +      +
     12D  LEU*     3.2    11.4    -      -       +      +
     13D  SER      3.0     0.4    -      -       -      -
     14D  SER*     1.3    77.6    -      -       -      +
     16D  ILE*     1.3    58.2    +      -       -      +
     17D  LEU      2.9     2.9    -      -       -      -
     18D  LEU*     2.6    35.5    +      -       +      +
     19D  PHE*     2.8    12.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 16 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  ILE*     5.8     3.1    -      -       +      +
     65C  ALA*     5.8     2.0    -      -       -      -
     68C  PHE*     3.0    45.8    -      -       +      +
     69C  GLY*     4.0     5.2    -      -       -      +
     72C  LEU*     4.7     7.2    -      -       +      -
    136C  LEU*     5.3     4.7    -      -       +      -
    140C  VAL*     3.8    38.1    -      -       +      -
    144C  ILE*     5.2     4.0    -      -       +      -
     12D  LEU      2.9    26.9    -      -       -      +
     13D  SER*     3.1    18.4    -      -       -      +
     15D  ILE*     1.3    73.2    -      -       -      +
     17D  LEU*     1.3    60.3    +      -       -      +
     19D  PHE*     3.7    17.3    -      -       +      -
     20D  VAL*     3.0    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 17 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  LEU*     4.0    14.6    -      -       +      -
     87C  VAL*     3.8    44.6    -      -       +      +
     90C  ILE*     3.6    36.5    -      -       +      +
     91C  VAL*     4.1    12.8    -      -       +      -
     13D  SER*     3.3    23.7    +      -       -      +
     14D  SER*     3.8    11.0    -      -       -      +
     15D  ILE      2.9     1.0    -      -       -      -
     16D  ILE*     1.3    81.2    -      -       -      +
     18D  LEU*     1.3    59.3    +      -       +      +
     20D  VAL      3.6     0.2    +      -       -      -
     21D  LEU*     3.0    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 18 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14D  SER*     3.2    17.5    -      -       -      +
     15D  ILE*     2.6    20.1    +      -       +      +
     17D  LEU*     1.3    73.2    -      -       +      +
     19D  PHE*     1.3    60.8    +      -       -      +
     21D  LEU*     2.8    14.8    +      -       +      -
     22D  LEU*     2.5    46.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 19 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106C  LEU*     4.5     3.1    -      -       +      -
    110C  PHE*     4.0    32.8    -      +       -      -
    116C  ILE*     6.3     0.9    -      -       +      -
    133C  VAL*     3.6    31.4    -      -       +      -
    136C  LEU*     3.4    33.7    -      -       +      -
    137C  PHE*     3.4    33.8    -      +       +      -
    140C  VAL*     4.5     0.4    -      -       +      -
     15D  ILE*     2.8    10.1    +      -       +      +
     16D  ILE*     3.5    24.0    -      -       +      +
     18D  LEU*     1.3    76.4    -      -       -      +
     20D  VAL*     1.3    69.3    +      -       +      +
     22D  LEU*     5.0     2.0    -      -       -      -
     23D  PRO*     2.9    29.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 20 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  ILE*     3.2    29.6    -      -       +      +
     91C  VAL*     5.6     3.1    -      -       -      +
     93C  LEU*     3.4    13.9    -      -       +      +
     94C  PRO*     3.4    27.6    -      -       +      -
    137C  PHE*     3.7    14.4    -      -       +      +
    140C  VAL*     4.2    24.0    -      -       +      -
     16D  ILE      3.0    16.9    +      -       -      +
     17D  LEU*     4.1     3.1    -      -       -      +
     19D  PHE*     1.3    90.8    -      -       +      +
     21D  LEU*     1.3    60.1    +      -       -      +
     23D  PRO*     4.3     0.7    -      -       -      -
     24D  VAL*     3.4    12.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 21 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  ILE*     3.8    27.1    -      -       +      -
     93C  LEU*     3.9    18.8    -      -       +      -
     17D  LEU      3.0    17.8    +      -       -      +
     18D  LEU*     2.8    18.2    +      -       +      +
     20D  VAL*     1.3    79.0    -      -       -      +
     22D  LEU*     1.3    66.9    +      -       -      +
     23D  PRO      3.3     0.3    -      -       -      -
     24D  VAL*     3.3     3.8    +      -       +      +
     25D  ALA*     2.7    43.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 22 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109C  VAL*     4.1     7.4    -      -       +      -
    115C  LEU*     3.9    27.4    -      -       +      -
    116C  ILE*     3.4    37.5    -      -       +      -
     18D  LEU*     2.5    29.0    +      -       +      +
     19D  PHE*     4.4     2.0    -      -       -      +
     21D  LEU*     1.3    72.9    -      -       -      +
     23D  PRO*     1.3    63.7    -      -       +      +
     25D  ALA*     4.2     4.5    -      -       +      -
     26D  ALA*     2.6    40.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 23 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105C  ALA*     3.6    26.9    -      -       +      +
    106C  LEU*     4.1    16.2    -      -       +      +
    109C  VAL*     3.6    21.0    -      -       +      -
    110C  PHE*     5.7     3.6    -      -       +      -
    137C  PHE*     4.0    19.5    -      -       +      -
     19D  PHE      2.9    29.2    -      -       -      +
     20D  VAL      4.1     2.0    -      -       -      +
     21D  LEU      3.6     0.2    -      -       -      -
     22D  LEU*     1.3    89.3    -      -       +      +
     24D  VAL*     1.3    71.4    +      -       -      +
     26D  ALA*     3.0     5.0    +      -       -      +
     27D  THR*     2.9    22.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 24 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  LEU*     3.8    20.6    -      -       +      -
     97C  ILE*     3.4    29.2    -      -       +      -
    105C  ALA*     4.2     4.0    -      -       +      +
    137C  PHE*     3.9    12.6    -      -       +      -
     20D  VAL      3.4    21.3    -      -       -      +
     21D  LEU*     3.3     3.8    +      -       +      +
     23D  PRO*     1.3    74.7    -      -       -      +
     25D  ALA*     1.3    66.6    +      -       -      +
     27D  THR*     3.5     3.7    +      -       -      -
     28D  VAL*     3.3    23.4    +      -       -      +
    237D  ILE*     3.4    43.7    -      -       +      -
    241D  LEU*     5.5     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  LEU*     2.7    44.8    +      -       +      +
     22D  LEU*     3.3     6.1    -      -       +      +
     23D  PRO      2.9     0.2    +      -       -      -
     24D  VAL*     1.3    74.6    -      -       -      +
     26D  ALA*     1.3    63.6    -      -       -      +
     28D  VAL*     2.9    18.0    +      -       -      +
     29D  THR*     2.9    17.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  VAL*     4.9     5.4    -      -       +      -
    109C  VAL*     4.3    11.4    -      -       +      -
    115C  LEU*     4.2    24.7    -      -       +      -
     22D  LEU*     2.6    25.1    +      -       +      +
     23D  PRO      3.0     2.7    +      -       -      +
     25D  ALA*     1.3    72.5    -      -       -      +
     27D  THR*     1.3    66.6    +      -       -      +
     29D  THR*     2.7    22.6    +      -       -      -
     30D  LEU*     2.9    22.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  ILE*     5.8     0.7    -      -       -      -
    105C  ALA*     3.5    37.9    -      -       +      +
    108C  VAL*     4.1    10.7    -      -       +      +
     23D  PRO      2.9    18.1    +      -       -      +
     24D  VAL      3.5     0.8    +      -       -      +
     26D  ALA*     1.3    74.3    -      -       -      +
     28D  VAL*     1.3    64.3    +      -       -      +
     30D  LEU*     3.7     2.1    +      -       -      +
     31D  GLN*     3.3    28.2    +      -       -      +
    230D  MET*     4.4    21.1    -      -       -      -
    233D  ALA*     4.9     5.2    -      -       -      +
    234D  ALA*     4.1    10.2    +      -       -      +
    237D  ILE*     3.3    21.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  VAL      3.3    16.2    -      -       -      +
     25D  ALA*     2.9     6.9    +      -       -      +
     27D  THR*     1.3    73.9    +      -       -      +
     29D  THR*     1.3    69.6    +      -       -      +
     31D  GLN*     3.2    14.2    +      -       +      +
     32D  LEU*     4.6     3.6    -      -       -      +
    234D  ALA*     4.0    13.0    -      -       +      -
    237D  ILE*     3.7    32.5    -      -       +      -
    238D  LEU*     3.2    39.7    -      -       +      -
    241D  LEU*     6.2     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 29 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25D  ALA*     2.9    18.0    +      -       -      +
     26D  ALA*     2.7    19.2    +      -       -      -
     28D  VAL*     1.3    73.7    -      -       -      +
     30D  LEU*     1.3    64.3    +      -       +      +
     31D  GLN      2.6    13.2    +      -       -      -
     32D  LEU*     2.9    35.2    +      -       +      +
     33D  PHE*     4.6     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 30 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  VAL*     4.0    27.8    -      -       +      -
    115C  LEU*     5.8    12.3    -      -       +      -
     26D  ALA*     2.9    19.8    +      -       +      +
     27D  THR      4.1     4.5    -      -       -      +
     29D  THR*     1.3    82.9    -      -       +      +
     31D  GLN*     1.3    60.8    +      -       -      +
     32D  LEU      2.8     7.8    +      -       -      -
     33D  PHE*     3.1    44.2    +      -       +      +
     34D  ASN*     3.7     8.3    +      -       -      +
    230D  MET*     4.1    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 31 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  THR      3.3    10.5    +      -       -      +
     28D  VAL*     3.2    12.8    +      -       +      +
     29D  THR      2.6     6.4    +      -       -      -
     30D  LEU*     1.3    77.4    +      -       -      +
     32D  LEU*     1.3    59.5    +      -       -      -
     34D  ASN*     4.1    10.1    +      -       -      +
     35D  PHE*     3.5    25.7    -      -       -      -
     38D  PHE*     3.5    35.8    +      -       +      +
    230D  MET*     3.7    31.1    -      -       -      +
    231D  PRO*     3.5    29.6    -      -       -      +
    234D  ALA*     3.3    28.9    -      -       +      -
----------------------------------------------------------
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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