Contacts of the helix formed by residues 56 - 90 (chain A) in PDB entry 2L5G


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 56 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  LYS*     4.4    29.2    -      -       +      +
     54A  LYS      3.1     9.1    -      -       -      +
     55A  GLU*     1.3    76.5    -      -       -      +
     57A  GLU*     1.3    68.4    +      -       -      +
     58A  GLU      3.1     2.2    -      -       -      -
     59A  ARG*     3.0    22.3    +      -       +      +
     60A  MET*     3.2    33.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  MET*     1.3    80.9    -      -       -      +
     58A  GLU*     1.3    68.1    +      -       +      +
     60A  MET*     3.4    17.8    +      -       +      +
     61A  SER*     3.3    15.5    +      -       -      +
----------------------------------------------------------
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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*     3.5    36.3    -      -       -      +
     56A  MET      3.1     0.6    -      -       -      -
     57A  GLU*     1.3    82.8    -      -       +      +
     59A  ARG*     1.3    65.1    +      -       +      +
     61A  SER*     3.4    16.7    +      -       -      -
     62A  LEU*     3.4    12.0    +      -       -      +
    203B  GLU      5.2     3.4    -      -       -      +
    204B  ALA*     4.5    31.9    -      -       +      +
    206B  LYS      5.6     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  GLU      3.8    18.3    +      -       -      +
     56A  MET*     3.0    15.4    +      -       +      +
     58A  GLU*     1.3    79.6    -      -       +      +
     60A  MET*     1.3    62.6    +      -       +      +
     62A  LEU*     3.4    14.8    +      -       -      +
     63A  GLU*     3.3    19.4    +      -       -      +
    201B  GLU      5.0     1.8    +      -       -      -
    204B  ALA*     3.5    33.5    +      -       -      +
    205B  ALA*     3.6    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  MET*     3.3    35.7    -      -       +      +
     57A  GLU*     3.5    15.0    -      -       +      +
     58A  GLU      3.2     0.4    -      -       -      -
     59A  ARG*     1.3    80.2    -      -       +      +
     61A  SER*     1.3    61.4    +      -       -      +
     63A  GLU*     3.4    26.9    +      -       -      +
     64A  GLU*     3.7    12.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  GLU*     3.3    14.0    +      -       -      +
     58A  GLU*     3.7    10.0    -      -       -      -
     59A  ARG      3.3     0.2    -      -       -      -
     60A  MET*     1.3    76.6    -      -       -      +
     62A  LEU*     1.3    65.4    +      -       -      +
     64A  GLU*     3.3    24.0    +      -       -      +
     65A  THR*     3.3    15.0    +      -       -      -
    200B  LEU*     4.8     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  GLU      3.4     8.3    +      -       -      +
     59A  ARG*     3.4    18.1    +      -       -      +
     60A  MET      3.3     0.4    -      -       -      -
     61A  SER*     1.3    79.7    -      -       -      +
     63A  GLU*     1.3    64.4    +      -       -      +
     65A  THR*     3.3     2.1    +      -       -      -
     66A  LYS*     3.1    46.1    +      -       +      +
    197B  GLN*     4.5     2.5    -      -       -      +
    200B  LEU*     3.7    28.7    -      -       +      +
    201B  GLU*     3.4    43.3    -      -       +      +
    204B  ALA*     4.1    11.2    -      -       +      -
----------------------------------------------------------
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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
----------------------------------------------------------
     59A  ARG      3.3     8.9    +      -       -      +
     60A  MET*     3.5    21.7    -      -       -      +
     61A  SER      3.2     0.4    -      -       -      -
     62A  LEU*     1.3    83.3    -      -       -      +
     64A  GLU*     1.3    60.8    +      -       +      +
     66A  LYS*     3.5    10.4    +      -       +      +
     67A  GLU*     3.5    18.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  MET      3.7     6.6    +      -       -      +
     61A  SER*     3.3    22.3    +      -       -      +
     62A  LEU      3.2     0.2    -      -       -      -
     63A  GLU*     1.3    79.8    -      -       +      +
     65A  THR*     1.3    64.7    +      -       -      +
     67A  GLU*     3.3    19.7    +      -       -      +
     68A  GLN*     3.7     5.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  SER      3.3    11.3    +      -       -      -
     62A  LEU      3.3     8.8    +      -       -      -
     64A  GLU*     1.3    78.9    -      -       -      +
     66A  LYS*     1.3    63.1    +      -       -      +
     68A  GLN*     3.3    13.3    +      -       +      +
     69A  ILE*     3.1    23.1    +      -       +      +
    193B  LEU*     5.3     1.8    -      -       +      -
    196B  LYS*     3.2    36.3    +      -       -      +
    197B  GLN*     3.5    14.1    -      -       -      +
    200B  LEU*     3.4    15.7    -      -       +      +
----------------------------------------------------------
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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  LEU*     3.1    29.2    +      -       +      +
     63A  GLU*     3.6    10.5    -      -       +      +
     64A  GLU      3.2     0.2    -      -       -      -
     65A  THR*     1.3    76.9    -      -       -      +
     67A  GLU*     1.3    59.1    +      -       -      +
     69A  ILE*     3.3     8.4    +      -       +      +
     70A  LEU*     2.9    36.0    +      -       +      +
    197B  GLN*     3.1    28.3    -      -       -      +
    201B  GLU*     3.3    21.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  GLU      3.5     9.4    +      -       -      +
     64A  GLU*     3.3    14.7    +      -       -      +
     65A  THR      3.2     0.4    -      -       -      -
     66A  LYS*     1.3    80.5    -      -       -      +
     68A  GLN*     1.3    61.2    +      -       -      +
     70A  LEU*     3.6    11.4    +      -       +      +
     71A  LYS*     3.3    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  GLU      3.7     5.3    +      -       -      +
     65A  THR*     3.3    13.2    +      -       +      +
     66A  LYS      3.2     0.6    -      -       -      -
     67A  GLU*     1.3    80.1    -      -       -      +
     69A  ILE*     1.3    65.8    +      -       +      +
     71A  LYS*     3.6    13.6    +      -       -      +
     72A  LEU*     3.5    23.3    +      -       -      +
    193B  LEU*     5.0    18.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  THR*     3.1    17.3    -      -       +      +
     66A  LYS*     3.3     7.1    +      -       +      +
     68A  GLN*     1.3    74.1    -      -       -      +
     70A  LEU*     1.3    66.6    +      -       -      +
     72A  LEU*     3.4    25.0    -      -       +      +
     73A  GLU*     3.8     9.4    +      -       -      +
    190B  ILE*     5.4     3.4    -      -       +      +
    193B  LEU*     3.4    29.4    -      -       +      +
    194B  LYS*     4.0    36.8    -      -       +      +
    197B  GLN*     2.8    56.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  LYS*     2.9    20.4    +      -       +      +
     67A  GLU*     3.9    12.8    -      -       +      +
     68A  GLN      3.3     0.2    -      -       -      -
     69A  ILE*     1.3    77.3    -      -       -      +
     71A  LYS*     1.3    64.1    +      -       -      +
     73A  GLU*     3.1    37.2    +      -       +      +
     74A  GLU*     3.8    13.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  GLU*     3.3    23.4    +      -       -      +
     68A  GLN*     3.7    18.2    -      -       -      +
     70A  LEU*     1.3    80.5    -      -       -      +
     72A  LEU*     1.3    63.6    +      -       -      +
     74A  GLU*     3.1    41.6    +      -       -      +
     75A  LYS*     3.1    26.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68A  GLN*     3.5    17.2    +      -       +      +
     69A  ILE*     3.4    14.3    +      -       +      +
     71A  LYS*     1.3    81.0    -      -       -      +
     73A  GLU*     1.3    56.5    +      -       -      +
     75A  LYS*     3.1    16.4    +      -       +      +
     76A  LEU*     2.7    33.1    +      -       -      +
    186B  VAL*     4.7     8.5    -      -       +      +
    189B  GLN*     4.9     6.1    -      -       +      -
    190B  ILE*     3.4    48.8    -      -       +      +
    193B  LEU*     3.4    36.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  ILE*     3.9     9.9    -      -       -      +
     70A  LEU*     3.2    28.5    -      -       +      +
     71A  LYS      3.1     0.2    -      -       -      -
     72A  LEU*     1.3    78.4    -      -       +      +
     74A  GLU*     1.3    57.3    +      -       +      +
     76A  LEU*     3.9     6.6    -      -       -      +
     77A  LEU*     3.1    43.8    +      -       +      +
    190B  ILE*     5.3     5.6    -      -       +      -
    194B  LYS*     4.6    14.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  LEU*     4.7    13.4    -      -       -      +
     71A  LYS*     3.1    36.6    +      -       -      +
     73A  GLU*     1.3    79.3    -      -       +      +
     75A  LYS*     1.3    59.7    +      -       -      +
     77A  LEU*     4.0     8.2    -      -       +      +
     78A  ALA*     3.1    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  LYS*     3.1    27.4    +      -       +      +
     72A  LEU*     3.6    22.0    -      -       +      +
     74A  GLU*     1.3    78.4    -      -       -      +
     76A  LEU*     1.3    61.7    +      -       -      +
     78A  ALA*     3.6     5.5    +      -       +      +
     79A  LEU*     3.3    33.9    +      -       +      +
    186B  VAL*     4.4    10.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  LEU      2.7    17.4    +      -       -      +
     73A  GLU*     3.9     6.5    -      -       -      +
     75A  LYS*     1.3    77.6    -      -       -      +
     77A  LEU*     1.3    65.2    +      -       +      +
     79A  LEU*     3.5    11.9    +      -       +      +
     80A  GLN*     3.5    18.8    +      -       +      +
    183B  ILE*     4.3    12.7    -      -       +      +
    186B  VAL*     4.2     7.4    -      -       +      +
    187B  GLU*     3.7    46.9    -      -       +      +
    190B  ILE*     3.5    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  GLU*     3.1    31.4    +      -       +      +
     74A  GLU*     4.0     8.3    -      -       +      +
     76A  LEU*     1.3    78.2    -      -       +      +
     78A  ALA*     1.3    64.6    +      -       -      +
     80A  GLN*     3.4    12.2    +      -       +      +
     81A  GLU*     3.2    26.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  GLU      3.1    19.0    +      -       -      +
     75A  LYS*     3.8     8.5    -      -       +      +
     77A  LEU*     1.3    78.1    -      -       -      +
     79A  LEU*     1.3    66.5    +      -       +      +
     81A  GLU*     3.3     9.8    +      -       -      +
     82A  GLU*     3.2    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  LYS*     3.3    21.7    +      -       +      +
     76A  LEU*     3.6    12.1    -      -       -      +
     78A  ALA*     1.3    84.7    -      -       +      +
     80A  GLN*     1.3    63.0    +      -       -      +
     82A  GLU*     3.2    26.3    +      -       +      +
     83A  LYS      3.5     4.0    +      -       -      -
    179B  VAL*     4.9     3.5    -      -       +      +
    182B  GLU*     4.0    24.5    -      -       +      +
    183B  ILE*     3.6    46.7    -      -       +      +
    186B  VAL*     4.2    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  LEU*     3.5    13.5    +      -       +      +
     77A  LEU*     3.4    16.6    +      -       +      +
     78A  ALA      3.3     0.4    -      -       -      -
     79A  LEU*     1.3    80.2    -      -       -      +
     81A  GLU*     1.3    62.9    +      -       +      +
     83A  LYS*     3.4     4.9    +      -       -      +
     84A  HIS*     3.2    19.4    +      -       -      +
    183B  ILE*     4.1    25.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  LEU*     3.2    15.9    +      -       +      +
     78A  ALA*     3.4    13.5    -      -       -      +
     79A  LEU      3.2     0.2    -      -       -      -
     80A  GLN*     1.3    80.5    -      -       +      +
     82A  GLU*     1.3    63.1    +      -       -      +
     84A  HIS*     3.2    19.1    +      -       -      +
     85A  GLN*     3.2    19.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ALA      3.2    10.5    +      -       -      +
     79A  LEU*     3.2    19.9    +      -       +      +
     81A  GLU*     1.3    81.3    -      -       -      +
     83A  LYS*     1.3    63.9    +      -       -      +
     85A  GLN*     3.1    33.5    +      -       -      +
     86A  LEU*     3.6     5.4    +      -       -      +
    179B  VAL*     4.5    11.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  LEU      3.5     1.6    +      -       -      -
     80A  GLN*     3.4     8.3    +      -       -      +
     81A  GLU      3.3     0.2    -      -       -      -
     82A  GLU*     1.3    79.4    -      -       -      +
     84A  HIS*     1.3    63.2    +      -       -      +
     86A  LEU*     3.1    20.6    +      -       -      +
     87A  PHE*     3.5    17.8    +      -       +      -
    176B  MET*     4.0    35.4    -      -       +      +
    179B  VAL*     3.8    17.8    -      -       +      +
    180B  ASP*     3.2    43.3    +      -       +      +
    183B  ILE*     4.2    13.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  GLN      3.2    10.9    +      -       -      +
     81A  GLU*     3.3    24.5    +      -       -      +
     82A  GLU      3.1     0.2    -      -       -      -
     83A  LYS*     1.3    81.6    -      -       -      +
     85A  GLN*     1.3    63.1    +      -       -      +
     87A  PHE*     3.2    27.0    +      -       +      +
     88A  LEU*     3.6    21.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  GLU      3.2     8.0    +      -       -      +
     82A  GLU*     3.1    25.3    +      -       -      +
     84A  HIS*     1.3    82.9    -      -       -      +
     86A  LEU*     1.3    68.1    +      -       -      +
     88A  LEU*     3.2    22.6    +      -       +      +
     89A  GLN*     3.2    37.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  GLU      3.6     3.0    +      -       -      +
     83A  LYS*     3.1    13.6    +      -       -      +
     85A  GLN*     1.3    88.2    -      -       -      +
     87A  PHE*     1.3    52.1    +      -       -      +
     89A  GLN*     3.0    13.6    +      -       -      +
     90A  LEU*     2.6    35.3    +      -       -      +
    172B  LEU*     3.1    38.8    -      -       +      +
    175B  ASN*     3.8    15.3    -      -       +      +
    176B  MET*     3.5    28.7    -      -       +      -
    179B  VAL*     3.5    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  LYS*     3.5    24.8    +      -       +      -
     84A  HIS*     3.2    21.7    +      +       +      +
     86A  LEU*     1.3    80.4    -      -       -      +
     88A  LEU*     1.3    65.8    +      -       +      +
     89A  GLN      3.1     0.7    +      -       -      -
     90A  LEU*     3.2    21.3    +      -       +      +
    176B  MET*     3.2    39.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  HIS*     4.1    27.4    -      -       +      +
     85A  GLN*     3.2    17.6    +      -       +      +
     86A  LEU      3.1     0.2    -      -       -      -
     87A  PHE*     1.3    83.1    -      -       +      +
     89A  GLN*     1.3    64.2    +      -       +      +
     90A  LEU*     4.6     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  GLN*     3.2    36.7    +      -       -      +
     86A  LEU*     3.0    15.9    +      -       -      +
     88A  LEU*     1.3    81.2    -      -       +      +
     90A  LEU*     1.3    70.2    +      -       -      +
    166B  GLY*     4.5    10.6    +      -       -      -
    172B  LEU*     3.4    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  LEU      2.6    17.4    +      -       -      +
     87A  PHE*     3.2    19.0    +      -       +      +
     88A  LEU      4.6     1.4    -      -       -      +
     89A  GLN*     1.3    78.8    -      -       -      +
    169B  LYS*     3.4    31.9    +      -       -      +
    172B  LEU*     3.5    34.0    -      -       +      +
    173B  ILE*     3.0    37.7    -      -       +      -
    176B  MET*     3.3    35.7    -      -       +      -
----------------------------------------------------------
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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