Contacts of the helix formed by residues 56 - 85 (chain A) in PDB entry 3MRC


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 GLY 56 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  GLN      3.7     2.4    +      -       -      -
     55A  GLU*     1.3    73.9    -      -       -      +
     57A  PRO*     1.3    77.8    -      -       -      +
     58A  GLU*     3.1    21.7    +      -       -      -
     59A  TYR*     2.9    18.7    +      -       -      +
     60A  TRP*     3.3     7.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  GLY*     1.3    83.6    -      -       -      +
     58A  GLU*     1.3    68.0    +      -       -      +
     59A  TYR      3.3     0.2    +      -       -      -
     60A  TRP*     3.4     9.7    +      -       +      +
     61A  ASP*     3.1    33.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  GLU*     4.8     4.2    -      -       -      +
     56A  GLY*     3.3    28.0    +      -       -      +
     57A  PRO*     1.3    84.9    -      -       -      +
     59A  TYR*     1.3    70.2    +      -       +      +
     61A  ASP*     3.9     6.4    -      -       -      +
     62A  GLY*     3.1    20.3    +      -       -      -
    170A  ARG*     5.7     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  TYR*     4.3     2.6    +      -       -      -
     33A  PHE*     3.8     9.0    -      -       -      -
     34A  VAL*     4.4     4.5    -      -       +      +
     52A  ILE*     3.6    21.7    -      -       +      +
     55A  GLU*     3.6    22.9    -      -       +      +
     56A  GLY      2.9    13.7    +      -       -      +
     58A  GLU*     1.3    83.8    -      -       +      +
     60A  TRP*     1.3    95.8    +      +       -      +
     62A  GLY*     3.2     1.9    +      -       -      -
     63A  GLU*     2.8    63.4    +      -       +      +
    167A  TRP*     3.7    29.4    -      +       +      -
    171A  TYR*     2.7    29.6    +      -       -      -
      1P  ASN*     4.3     3.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  VAL*     3.9    12.8    -      -       +      -
     44A  ARG*     3.7    12.8    -      -       -      +
     45A  MET*     3.4    30.0    -      -       +      +
     46A  GLU      3.8     6.1    -      -       -      -
     47A  PRO*     3.5    49.8    -      -       +      -
     52A  ILE*     3.5    37.7    +      -       +      -
     53A  GLU*     4.6     4.4    -      -       -      +
     55A  GLU      3.3    19.4    +      -       -      -
     56A  GLY      3.3    24.4    +      -       -      -
     57A  PRO*     3.4     8.2    +      -       +      +
     59A  TYR*     1.3    87.8    -      +       -      +
     61A  ASP*     1.3    55.6    +      -       -      +
     63A  GLU*     4.2     1.2    -      -       +      +
     64A  THR*     2.6    37.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  ARG*     2.3    42.8    +      -       -      +
     57A  PRO*     3.1    22.9    +      -       -      +
     58A  GLU*     3.9     7.5    -      -       -      +
     60A  TRP*     1.3    76.6    -      -       -      +
     62A  GLY*     1.3    61.6    +      -       -      +
     64A  THR*     3.4     2.4    +      -       -      -
     65A  ARG*     3.1    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  GLU      3.1    16.2    +      -       -      -
     59A  TYR*     3.7     2.0    -      -       -      -
     61A  ASP*     1.3    76.0    -      -       -      +
     63A  GLU*     1.3    63.3    +      -       -      +
     65A  ARG*     3.4    22.7    +      -       -      +
     66A  LYS*     3.2    35.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  TYR*     4.0     3.6    +      -       -      -
     45A  MET*     4.2    24.5    -      -       +      +
     59A  TYR*     2.8    50.7    +      -       +      +
     60A  TRP*     4.2     2.7    -      -       -      +
     62A  GLY*     1.3    76.1    -      -       -      +
     64A  THR*     1.3    57.0    +      -       -      +
     66A  LYS*     2.7    29.7    +      -       -      +
     67A  VAL*     2.9    31.5    +      -       -      +
      1P  ASN*     3.5    17.3    +      -       -      +
      2P  LEU*     2.8    38.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  PHE*     4.8     1.6    -      -       +      -
     43A  GLN      3.4    26.7    -      -       -      +
     44A  ARG*     3.7    28.8    -      -       -      +
     45A  MET*     3.0    20.4    +      -       -      +
     60A  TRP      2.6    23.8    +      -       -      -
     61A  ASP      3.8     3.4    -      -       -      -
     62A  GLY      3.3     0.2    -      -       -      -
     63A  GLU*     1.3    74.1    -      -       -      +
     65A  ARG*     1.3    65.5    +      -       -      +
     67A  VAL*     3.5     6.8    -      -       -      +
     68A  LYS*     3.0    39.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  ASP*     3.1    23.4    +      -       -      +
     62A  GLY*     3.7    20.7    +      -       -      +
     63A  GLU      3.4     0.2    -      -       -      -
     64A  THR*     1.3    76.7    -      -       -      +
     66A  LYS*     1.3    67.5    +      -       +      +
     68A  LYS*     3.9     6.0    -      -       -      +
     69A  ALA*     3.1    23.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  GLY*     3.2    20.4    +      -       -      +
     63A  GLU*     2.7    32.6    +      -       -      -
     65A  ARG*     1.3    81.5    -      -       +      +
     67A  VAL*     1.3    57.2    +      -       -      +
     69A  ALA*     3.2     6.9    +      -       -      +
     70A  HIS*     2.9    28.4    +      -       -      +
      1P  ASN*     2.8    26.3    +      -       -      +
      2P  LEU*     2.8    30.6    +      -       +      +
      3P  VAL      4.7     4.7    -      -       -      +
      4P  PRO*     4.2    28.5    -      -       +      -
      5P  MET      5.5     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  PHE*     4.5     5.2    -      -       +      -
     22A  PHE*     3.5    16.2    -      -       +      -
     24A  ALA*     3.8    29.4    -      -       +      -
     36A  PHE*     3.5    35.0    -      -       +      -
     45A  MET*     3.8    16.6    -      -       +      -
     63A  GLU      2.9    17.1    +      -       -      +
     64A  THR*     3.5    13.7    -      -       -      +
     66A  LYS*     1.3    75.1    -      -       -      +
     68A  LYS*     1.3    64.6    +      -       -      +
     70A  HIS*     3.4     4.4    +      -       -      +
     71A  SER      3.0    22.0    +      -       -      -
      2P  LEU*     3.7    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  PHE*     4.1    17.9    -      -       +      -
     43A  GLN*     3.2    52.8    +      -       -      +
     44A  ARG*     5.5     2.4    -      -       -      +
     64A  THR*     3.0    27.5    +      -       +      +
     65A  ARG*     3.9     5.8    -      -       -      +
     67A  VAL*     1.3    79.5    -      -       -      +
     69A  ALA*     1.3    60.7    +      -       -      +
     71A  SER*     2.6    26.2    +      -       -      +
     72A  GLN*     3.2    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  ARG*     3.1    18.5    +      -       +      +
     66A  LYS*     3.2     7.8    +      -       -      +
     68A  LYS*     1.3    73.9    -      -       -      +
     70A  HIS*     1.3    59.8    +      -       -      +
     72A  GLN*     3.3     9.9    +      -       -      +
     73A  THR*     3.0    30.4    +      -       -      -
      5P  MET      4.7     6.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  PHE*     3.4    49.3    -      +       +      -
     22A  PHE*     4.3     4.5    -      +       +      -
     66A  LYS      2.9    17.0    +      -       -      +
     67A  VAL*     3.4    10.5    -      -       -      +
     69A  ALA*     1.3    73.0    -      -       -      +
     71A  SER*     1.3    65.7    +      -       -      +
     73A  THR*     3.1     7.9    +      -       -      -
     74A  HIS*     3.0    39.2    +      +       -      +
     97A  ARG*     3.0    32.1    +      -       -      -
     99A  TYR*     4.5     3.2    +      -       -      -
      2P  LEU*     5.1     2.8    -      -       -      +
      3P  VAL      5.0     2.4    +      -       -      -
      5P  MET*     3.6    34.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  SER*     4.9     0.5    +      -       -      -
     20A  PRO*     5.8     0.3    -      -       -      +
     22A  PHE*     3.4    46.1    -      -       -      +
     36A  PHE*     5.4     3.0    -      -       -      -
     38A  SER*     6.0     0.9    -      -       -      -
     67A  VAL      3.0     8.9    +      -       -      -
     68A  LYS*     2.6    25.3    +      -       -      +
     70A  HIS*     1.3    75.9    -      -       -      +
     72A  GLN*     1.3    65.6    +      -       -      +
     74A  HIS*     3.4     4.0    +      -       -      +
     75A  ARG*     3.0    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  GLU*     3.6    25.4    +      -       -      +
     68A  LYS      3.2    12.8    +      -       -      +
     69A  ALA*     3.6     9.9    -      -       -      +
     70A  HIS      3.2     0.2    -      -       -      -
     71A  SER*     1.3    80.7    +      -       -      +
     73A  THR*     1.3    67.7    +      -       -      +
     75A  ARG*     3.0    44.0    +      -       -      +
     76A  VAL*     2.9    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  ALA      3.0    11.8    +      -       -      -
     70A  HIS*     3.1    10.3    +      -       -      -
     72A  GLN*     1.3    76.1    -      -       -      +
     74A  HIS*     1.3    56.8    +      -       -      +
     76A  VAL*     3.2     5.9    +      -       -      +
     77A  ASP*     2.9    35.1    +      -       -      +
     97A  ARG*     3.8    19.3    -      -       -      +
      5P  MET*     2.5    28.5    +      -       +      +
      6P  CYS*     4.0     7.8    +      -       -      -
      7P  ALA      3.6    24.5    -      -       -      +
      8P  THR*     4.1    14.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  PHE*     3.6    21.8    +      -       +      +
     11A  SER*     3.0    37.0    -      -       -      +
     22A  PHE*     4.1    11.2    -      +       -      -
     70A  HIS*     3.0    20.4    +      -       -      +
     71A  SER*     3.6     8.1    -      -       -      +
     72A  GLN      3.3     0.2    -      -       -      -
     73A  THR*     1.3    72.7    -      -       -      +
     75A  ARG*     1.3    60.2    +      -       -      +
     77A  ASP*     3.2     8.7    +      -       -      +
     78A  LEU*     2.9    35.1    +      -       -      +
     95A  VAL*     3.7    17.4    -      -       +      +
     96A  GLN      4.9     0.2    -      -       -      -
     97A  ARG*     2.9    55.1    +      -       +      +
    116A  TYR*     4.6     6.1    -      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  GLU*     4.5    11.7    -      -       +      +
     20A  PRO*     3.6    38.0    -      -       +      +
     71A  SER      3.0    14.1    +      -       -      +
     72A  GLN*     3.0    41.5    +      -       -      +
     74A  HIS*     1.3    72.0    -      -       -      +
     76A  VAL*     1.3    95.9    +      -       -      +
     78A  LEU*     3.4    11.8    +      -       -      +
     79A  GLY*     3.4     8.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  GLN      2.9    19.9    +      -       -      +
     73A  THR*     3.5     7.6    -      -       -      +
     75A  ARG*     1.3   102.6    -      -       -      +
     77A  ASP*     1.3    64.5    +      -       -      +
     79A  GLY*     3.1     4.3    +      -       -      -
     80A  THR*     2.9    32.6    +      -       -      +
      8P  THR*     3.7    29.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  THR*     2.9    19.6    +      -       -      +
     74A  HIS*     3.2    13.2    +      -       -      +
     76A  VAL*     1.3    77.7    -      -       -      +
     78A  LEU*     1.3    56.8    +      -       -      +
     80A  THR*     3.1     2.1    +      -       -      -
     81A  LEU*     2.8    37.4    +      -       +      +
     95A  VAL*     4.6     2.0    -      -       +      -
     97A  ARG*     3.7    12.6    +      -       -      -
    116A  TYR*     2.9    38.9    +      -       -      +
      7P  ALA      4.9     0.3    -      -       -      +
      8P  THR*     3.3    11.2    -      -       -      -
      9P  VAL*     2.8    37.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  SER*     3.9    15.7    -      -       -      -
     13A  SER*     4.0    19.3    -      -       -      +
     20A  PRO*     3.6    36.6    -      -       +      -
     74A  HIS      2.9    18.6    +      -       -      +
     75A  ARG      3.8     4.3    -      -       -      +
     76A  VAL      3.3     0.2    -      -       -      -
     77A  ASP*     1.3    76.2    -      -       -      +
     79A  GLY*     1.3    61.2    +      -       -      +
     81A  LEU*     4.1     2.3    -      -       -      +
     82A  ARG*     3.1    27.2    +      -       -      +
     93A  HIS*     3.5    40.3    -      -       +      +
     95A  VAL*     3.8    24.9    -      -       +      +
    118A  TYR*     4.2     4.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  ARG      3.4     6.7    +      -       -      -
     76A  VAL      3.1     7.1    +      -       -      -
     78A  LEU*     1.3    76.5    -      -       -      +
     80A  THR*     1.3    63.8    +      -       -      +
     82A  ARG*     3.5    27.2    +      -       -      +
     83A  GLY*     3.4    14.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  VAL*     2.9    25.1    +      -       -      +
     77A  ASP*     3.6     6.2    -      -       -      -
     79A  GLY*     1.3    76.0    -      -       -      +
     81A  LEU*     1.3    58.2    +      -       -      +
     83A  GLY*     3.1     5.2    +      -       -      -
     84A  TYR*     2.9    63.1    +      -       +      +
      9P  VAL*     3.6    22.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ASP      2.8    21.6    +      -       -      +
     78A  LEU      4.1     0.9    -      -       -      +
     80A  THR*     1.3    68.7    -      -       -      +
     82A  ARG*     1.3    67.6    +      -       -      +
     84A  TYR*     3.9    11.2    -      -       +      +
     85A  TYR*     2.9    37.9    +      -       +      +
     95A  VAL*     3.5    22.2    -      -       +      -
    116A  TYR*     3.5    31.0    -      -       +      +
    118A  TYR*     3.5    28.9    -      -       +      -
    123A  TYR*     3.7    39.7    -      -       +      +
      9P  VAL*     3.9     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 82 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  LEU*     3.1    17.5    +      -       -      +
     79A  GLY*     3.6    26.5    +      -       -      +
     81A  LEU*     1.3    75.9    -      -       -      +
     83A  GLY*     1.3    56.6    +      -       -      +
     85A  TYR      3.7     0.2    -      -       -      -
     86A  ASN*     3.0     7.4    +      -       -      -
     87A  GLN*     2.8    63.2    +      -       +      +
     88A  SER      3.6    22.4    -      -       -      +
     89A  GLU*     3.1    45.7    +      -       -      +
     93A  HIS*     5.1     7.0    -      -       +      -
    118A  TYR*     3.9     3.6    +      -       -      +
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Residues in contact with GLY 83 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  GLY      3.4     5.5    +      -       -      -
     80A  THR*     3.1     7.8    +      -       -      -
     82A  ARG*     1.3    76.6    -      -       -      +
     84A  TYR*     1.3    65.6    +      -       -      +
     86A  ASN*     3.0    22.7    +      -       -      +
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Residues in contact with TYR 84 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  THR*     2.9    40.9    +      -       +      +
     81A  LEU*     3.2    19.5    +      -       +      +
     83A  GLY*     1.3    73.8    -      -       -      +
     85A  TYR*     1.3    68.0    +      -       +      +
     86A  ASN*     3.3     6.5    +      -       -      +
    123A  TYR*     3.4    27.1    -      -       -      -
    139A  ALA*     4.1    23.5    -      -       +      +
    142A  THR*     3.4    26.3    -      -       +      +
    143A  THR*     3.9     2.0    -      -       -      -
    146A  LYS*     5.5     1.9    +      -       -      +
      9P  VAL*     3.0    24.6    +      -       -      -
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Residues in contact with TYR 85 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  LEU*     2.9    40.1    +      -       +      +
     84A  TYR*     1.3    78.6    -      -       +      +
     86A  ASN*     1.3    70.8    +      -       -      +
     87A  GLN*     3.2    32.4    +      -       -      +
    118A  TYR*     3.6    30.4    -      +       -      +
    121A  LYS*     6.0     4.3    -      -       -      -
    122A  ASP      5.6     0.3    +      -       -      -
    123A  TYR*     3.3    15.6    -      +       -      -
    137A  ASP*     2.5    37.3    +      -       -      -
    139A  ALA*     3.7    17.3    -      -       +      -
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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