Contacts of the helix formed by residues 48 - 76 (chain D) in PDB entry 6WYG


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 LEU 48 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154B  ASN*     4.2    13.2    -      -       -      +
     41D  PHE*     3.1    24.7    +      -       +      +
     46D  VAL*     3.8    25.6    -      -       +      +
     47D  ALA*     1.3    73.6    -      -       -      +
     49D  LYS*     1.3    65.5    +      -       -      +
     50D  ASN      3.2     3.2    +      -       -      -
     51D  PHE*     3.3    19.3    +      -       +      +
     52D  ALA*     3.2    17.0    +      -       -      +
     96D  GLY      5.2     0.2    -      -       -      +
    164D  GLY      5.8     0.2    -      -       -      +
    167D  GLU*     4.0    25.6    -      -       +      +
    168D  TYR*     3.9    31.0    -      -       +      +
    171D  ASP*     3.3    22.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 49 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150B  ASP*     5.7     5.2    -      -       -      +
     41D  PHE      5.0     0.4    -      -       -      -
     42D  ASP*     5.9     3.8    -      -       -      +
     47D  ALA*     3.7     7.8    +      -       -      +
     48D  LEU*     1.3    73.1    -      -       -      +
     50D  ASN*     1.3    64.7    +      -       -      +
     52D  ALA*     3.3     8.7    -      -       -      +
     53D  LYS*     3.0    31.6    +      -       +      +
    171D  ASP*     3.6     4.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 50 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49D  LYS*     1.3    78.9    -      -       -      +
     51D  PHE*     1.3    60.1    +      -       -      +
     53D  LYS*     3.8    12.4    -      -       +      +
     54D  TYR*     2.9    30.1    +      -       -      +
    171D  ASP*     2.8    45.3    +      -       -      +
    172D  LYS*     4.3     7.7    +      -       -      +
    175D  LEU*     3.4    26.7    -      -       +      +
    176D  GLY*     3.7    14.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 51 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41D  PHE*     3.7    17.7    -      +       +      -
     48D  LEU*     3.5    23.1    -      -       +      +
     50D  ASN*     1.3    77.2    -      -       -      +
     52D  ALA*     1.3    61.4    +      -       -      +
     54D  TYR*     3.4     1.7    +      -       -      +
     55D  PHE*     3.0    51.5    +      +       -      -
     96D  GLY*     3.5    35.9    -      -       -      -
    100D  MET*     3.7    17.3    -      -       +      -
    155D  LEU*     3.9    12.3    -      -       +      -
    167D  GLU*     3.9    10.1    -      -       +      -
    170D  PHE*     3.7    23.3    -      +       -      -
    171D  ASP*     2.9    35.1    +      -       +      -
    175D  LEU*     3.6    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 52 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  SER*     2.9    46.6    +      -       -      +
     41D  PHE*     3.8    11.6    -      -       +      +
     42D  ASP*     4.3    10.3    -      -       +      +
     48D  LEU      3.2     9.6    +      -       -      +
     49D  LYS*     3.3    13.5    -      -       -      +
     50D  ASN      3.2     0.2    -      -       -      -
     51D  PHE*     1.3    79.6    -      -       -      +
     53D  LYS*     1.3    62.2    +      -       +      +
     56D  LEU*     3.0    13.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 53 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49D  LYS*     3.0    23.6    +      -       +      +
     50D  ASN*     3.8    14.6    -      -       +      +
     51D  PHE      3.4     0.2    -      -       -      -
     52D  ALA*     1.3    74.6    -      -       +      +
     54D  TYR*     1.3    63.9    +      -       -      +
     56D  LEU*     3.2     8.2    +      -       -      +
     57D  HIS*     3.0    24.1    +      -       -      +
    175D  LEU      6.0     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 54 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50D  ASN      2.9    19.0    +      -       -      +
     51D  PHE*     3.6     5.2    -      -       -      +
     52D  ALA      3.3     0.2    -      -       -      -
     53D  LYS*     1.3    77.9    -      -       -      +
     55D  PHE*     1.3    80.8    +      +       -      +
     57D  HIS*     3.3     6.4    +      +       +      +
     58D  GLN*     3.0    58.3    +      -       +      +
    100D  MET*     3.9    21.1    -      -       +      -
    147D  GLU*     2.5    38.6    +      -       -      +
    148D  LEU*     3.7    13.3    -      -       +      +
    151D  HIS*     3.7    19.1    -      -       -      -
    175D  LEU*     3.7    21.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 55 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  TYR*     3.5    51.3    -      +       -      +
     37D  MET*     3.3    30.3    -      -       +      -
     38D  SER*     3.7    10.5    -      -       -      +
     41D  PHE*     3.5    35.7    -      +       -      -
     51D  PHE*     3.0    38.6    +      +       -      +
     54D  TYR*     1.3    95.4    -      +       -      +
     56D  LEU*     1.3    57.7    +      -       -      +
     58D  GLN*     3.4     1.5    +      -       -      -
     59D  SER*     2.9    24.4    +      -       -      -
     99D  ALA*     3.9     7.9    -      -       +      -
    100D  MET*     3.8    25.8    -      -       +      -
    103D  ALA*     4.3     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 56 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35D  LEU*     4.2    24.9    -      -       +      -
     38D  SER*     3.5    19.2    -      -       -      +
     39D  TYR*     4.5    15.9    -      -       +      +
     52D  ALA      3.0    11.5    +      -       -      +
     53D  LYS*     3.7     7.2    -      -       -      +
     55D  PHE*     1.3    75.9    -      -       -      +
     57D  HIS*     1.3    58.7    +      -       -      +
     59D  SER*     3.2     7.8    +      -       -      -
     60D  HIS*     3.0    61.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 57 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53D  LYS      3.0    16.1    +      -       -      +
     54D  TYR*     3.7     6.3    -      +       +      +
     56D  LEU*     1.3    74.7    -      -       -      +
     58D  GLN*     1.3    76.4    +      -       -      +
     60D  HIS*     3.3    12.3    +      -       +      +
     61D  GLU*     2.9    46.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 58 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  TYR*     3.7    37.9    +      -       +      -
     54D  TYR*     3.0    60.1    +      -       +      +
     55D  PHE*     3.6     7.2    -      -       -      +
     57D  HIS*     1.3    87.7    -      -       -      +
     59D  SER*     1.3    62.1    -      -       -      +
     61D  GLU*     3.2     8.7    +      -       -      +
     62D  GLU*     2.9    30.1    +      -       -      +
    107D  GLU*     5.0     2.1    -      -       -      +
    144D  ALA*     5.3     8.7    -      -       -      +
    147D  GLU*     4.2     5.9    +      -       -      +
    148D  LEU*     5.3     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 59 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31D  SER*     2.8    40.3    +      -       -      +
     34D  TYR*     3.6    10.9    -      -       -      +
     35D  LEU*     3.7    17.0    -      -       -      +
     55D  PHE      2.9    15.1    +      -       -      -
     56D  LEU*     3.3    14.7    -      -       -      +
     57D  HIS      3.1     0.2    -      -       -      -
     58D  GLN*     1.3    76.3    -      -       -      +
     60D  HIS*     1.3    69.1    +      -       -      +
     62D  GLU      3.2     1.4    +      -       -      -
     63D  ARG*     3.0    19.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 60 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56D  LEU*     3.0    51.1    +      -       +      +
     57D  HIS*     3.8    11.6    +      -       +      +
     59D  SER*     1.3    80.2    -      -       -      +
     61D  GLU*     1.3    58.0    +      -       +      +
     63D  ARG*     3.2     8.7    +      -       +      +
     64D  GLU*     2.9    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 61 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57D  HIS*     2.9    48.1    +      -       +      +
     58D  GLN*     3.6     9.6    -      -       -      +
     60D  HIS*     1.3    75.5    -      -       +      +
     62D  GLU*     1.3    65.8    +      -       -      +
     64D  GLU*     3.2    10.2    +      -       -      +
     65D  HIS*     3.0    37.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 62 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  GLU*     2.6    22.7    -      -       -      +
     30D  ALA*     3.6    13.6    -      -       +      +
     31D  SER*     3.5    24.2    -      -       -      +
     34D  TYR*     3.8    20.9    -      -       +      -
     58D  GLN*     2.9    20.5    +      -       -      +
     59D  SER      3.6     0.2    -      -       -      +
     61D  GLU*     1.3    78.4    -      -       -      +
     63D  ARG*     1.3    63.0    +      -       -      +
     65D  HIS*     3.1    11.3    +      -       -      +
     66D  ALA*     2.9    22.7    +      -       -      +
    107D  GLU*     3.4     8.8    -      -       -      +
    110D  VAL*     5.0     1.4    -      -       -      +
    201D   FE      2.4    21.5    -      -       -      -
    202D   FE      2.4    24.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 63 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  GLU      5.2     0.2    -      -       -      -
     28D  LEU*     4.4    16.2    -      -       +      -
     31D  SER*     3.7    14.7    -      -       -      +
     59D  SER      3.0    13.5    +      -       -      +
     60D  HIS*     3.2    11.9    +      -       +      +
     62D  GLU*     1.3    75.9    -      -       -      +
     64D  GLU*     1.3    56.4    +      -       +      +
     66D  ALA*     3.2     6.6    +      -       -      +
     67D  GLU*     2.9    55.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 64 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60D  HIS*     2.9    20.4    +      -       +      +
     61D  GLU*     3.2    11.0    +      -       -      +
     63D  ARG*     1.3    75.6    -      -       +      +
     65D  HIS*     1.3    60.9    +      -       +      +
     67D  GLU*     3.4    15.6    +      -       -      +
     68D  LYS*     2.9    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 65 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  GLU*     3.7     9.3    +      -       -      +
     61D  GLU*     3.0    28.1    +      -       +      +
     62D  GLU*     3.1    12.9    +      -       -      +
     64D  GLU*     1.3    78.7    -      -       +      +
     66D  ALA*     1.3    67.3    +      -       -      +
     68D  LYS*     3.0     4.0    +      -       +      -
     69D  LEU*     2.9    22.6    +      -       -      +
    136D  HIS      4.9     6.9    +      -       -      -
    137D  TYR*     3.0    37.9    +      +       +      -
    140D  GLU*     5.1    14.1    -      -       +      +
    141D  GLN*     4.5     5.4    -      -       -      -
    201D   FE      3.2    24.4    -      -       -      -
    202D   FE      4.6     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 66 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  ILE*     4.0     8.4    -      -       +      +
     27D  GLU*     3.8    17.6    -      -       +      +
     28D  LEU*     3.6    37.2    -      -       +      +
     62D  GLU      2.9    12.4    +      -       -      +
     63D  ARG      3.5     8.1    -      -       -      +
     65D  HIS*     1.3    76.2    -      -       -      +
     67D  GLU*     1.3    58.4    +      -       +      +
     69D  LEU*     3.1     8.9    +      -       -      +
     70D  MET*     2.9    33.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 67 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28D  LEU*     6.3     1.1    -      -       +      -
     63D  ARG*     2.9    46.0    +      -       +      +
     64D  GLU*     3.7    13.4    -      -       -      +
     66D  ALA*     1.3    78.4    -      -       +      +
     68D  LYS*     1.3    57.0    +      -       -      +
     70D  MET*     3.3    18.3    +      -       -      +
     71D  LYS*     2.9    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 68 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64D  GLU      2.9    15.3    +      -       -      +
     65D  HIS*     3.0     7.4    +      -       +      +
     67D  GLU*     1.3    76.4    -      -       -      +
     69D  LEU*     1.3    55.8    +      -       -      +
     71D  LYS*     3.2    14.2    +      -       +      +
     72D  LEU*     2.9    27.3    +      -       -      +
    132D  PHE*     4.0    19.4    -      -       +      -
    136D  HIS*     5.3     7.6    -      -       +      -
    137D  TYR*     3.4    20.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 69 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20D  ILE*     3.9    28.3    -      -       +      +
     23D  GLN*     3.5    47.6    -      -       +      +
     24D  ILE*     3.6    13.9    -      -       +      +
     27D  GLU*     3.9    14.1    -      -       +      -
     65D  HIS      2.9     8.9    +      -       -      +
     66D  ALA*     3.5     6.5    -      -       -      +
     68D  LYS*     1.3    71.7    -      -       -      +
     70D  MET*     1.3    61.3    +      -       -      +
     72D  LEU*     3.2     5.8    +      -       +      +
     73D  GLN*     2.9    29.5    +      -       -      +
    132D  PHE*     4.3     9.4    -      -       +      -
    133D  ILE*     4.8     6.3    -      -       +      -
    137D  TYR*     3.2    34.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  ILE*     3.7    33.2    -      -       +      -
     28D  LEU*     5.6     4.9    -      -       -      -
     66D  ALA*     2.9    22.2    +      -       -      +
     67D  GLU*     3.5    20.9    -      -       -      +
     69D  LEU*     1.3    76.3    -      -       -      +
     71D  LYS*     1.3    62.4    +      -       -      +
     73D  GLN*     3.2     4.8    +      -       -      +
     74D  ASN*     3.0    21.3    +      -       -      +
     80D  ILE*     3.6    40.6    -      -       +      +
     82D  LEU*     4.3    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67D  GLU      2.9    14.2    +      -       -      +
     68D  LYS*     3.2    16.1    +      -       +      +
     70D  MET*     1.3    76.4    -      -       -      +
     72D  LEU*     1.3    57.7    +      -       -      +
     74D  ASN*     3.4     6.9    +      -       -      +
     75D  GLN*     2.8    52.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 72 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12D  TYR*     4.4    11.9    -      -       -      +
     20D  ILE*     4.5    10.8    -      -       +      -
     68D  LYS      2.9    13.8    +      -       -      +
     69D  LEU*     3.6     7.9    -      -       -      +
     70D  MET      3.2     0.2    -      -       -      -
     71D  LYS*     1.3    74.8    -      -       -      +
     73D  GLN*     1.3    66.9    +      -       -      +
     75D  GLN*     3.1    18.4    +      -       +      +
     76D  ARG*     2.9    31.9    +      -       +      +
    128D  HIS*     3.6    30.7    -      -       +      -
    129D  LEU*     3.6    27.6    -      -       +      -
    132D  PHE*     3.7    33.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 73 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12D  TYR*     2.7    42.6    +      -       -      -
     17D  GLU*     3.3    16.7    +      -       -      +
     20D  ILE*     3.7    11.1    -      -       +      +
     21D  ASN*     3.2    35.4    +      -       -      +
     24D  ILE*     4.7     1.3    -      -       +      +
     69D  LEU      2.9    13.4    +      -       -      +
     70D  MET*     3.3     9.6    -      -       -      +
     72D  LEU*     1.3    76.5    -      -       -      +
     74D  ASN*     1.3    63.0    +      -       -      +
     76D  ARG*     3.1     6.9    +      -       -      +
     78D  GLY*     3.0    30.3    +      -       -      -
     79D  ARG      3.4     8.0    +      -       -      -
     80D  ILE*     3.6    30.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 74 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  VAL*     4.6     5.7    -      -       -      +
     70D  MET      3.0    12.6    +      -       -      +
     71D  LYS*     3.8     7.0    -      -       -      +
     73D  GLN*     1.3    76.3    -      -       -      +
     75D  GLN*     1.3    60.9    +      -       -      +
     76D  ARG      3.3     0.7    +      -       -      -
     77D  GLY*     3.3    10.4    +      -       -      -
     78D  GLY      4.0    11.4    -      -       -      +
     79D  ARG*     5.5     0.2    -      -       -      -
     80D  ILE*     3.6    30.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 75 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  VAL*     4.3    12.1    -      -       -      +
     71D  LYS*     2.8    41.1    +      -       +      +
     72D  LEU*     3.1    32.5    +      -       +      +
     74D  ASN*     1.3    77.9    -      -       -      +
     76D  ARG*     1.3    62.5    +      -       +      +
     77D  GLY      3.6     0.3    +      -       -      -
    128D  HIS*     5.6     3.3    +      -       +      -
    132D  PHE*     4.9     6.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 76 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  VAL*     4.4     3.3    -      -       -      +
      9D  ARG*     3.5    24.9    -      -       -      +
     10D  GLN      4.3    12.9    +      -       -      +
     11D  ASN*     3.7     7.9    +      -       -      +
     12D  TYR*     3.0    54.5    -      -       +      +
     72D  LEU*     2.9    30.1    +      -       +      +
     73D  GLN      3.1     1.1    +      -       -      +
     75D  GLN*     1.3    78.6    -      -       -      +
     77D  GLY*     1.3    60.3    +      -       -      +
     78D  GLY      3.7     0.2    +      -       -      -
    126D  ASP*     2.3    44.8    +      -       -      -
    127D  PRO*     5.4     0.2    -      -       -      +
    128D  HIS*     3.0    43.9    +      -       -      +
    129D  LEU*     3.4     3.3    -      -       -      +
----------------------------------------------------------
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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