Contacts of the helix formed by residues 54 - 78 (chain E) in PDB entry 5K58


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 SER 54 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49E  TYR*     3.9    11.4    -      -       -      -
     52E  PHE*     3.2    12.0    -      -       -      +
     53E  PRO*     1.3    86.3    -      -       -      +
     55E  LYS*     1.3    64.3    +      -       -      +
     56E  THR*     3.1    11.9    -      -       -      +
     57E  ARG*     3.2    38.5    +      -       -      +
     58E  MET*     3.6     4.5    +      -       -      +
      9T    C      3.5    16.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 55 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19E  LEU*     6.4     0.2    -      -       +      -
     31E  ARG*     4.6     4.6    -      -       -      +
     32E  ILE*     2.4    31.3    +      -       +      +
     33E  THR*     4.0     0.9    -      -       -      +
     34E  THR*     4.3    16.4    -      -       +      +
     37E  LEU*     4.7     8.3    -      -       +      -
     49E  TYR*     4.4     4.7    -      -       +      +
     54E  SER*     1.3    69.9    -      -       -      +
     56E  THR*     1.3    64.7    +      -       -      +
     58E  MET*     3.2    38.0    -      -       +      +
     59E  PHE*     3.6    22.3    +      -       +      -
    116E  PHE      5.5     0.6    +      -       -      -
    117E  GLU*     3.7    27.8    +      -       -      +
      8T    A      3.3    38.9    +      -       -      -
      9T    C      3.0    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 56 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54E  SER*     3.1    11.3    -      -       -      +
     55E  LYS*     1.3    78.5    -      -       -      +
     57E  ARG*     1.3    67.8    +      -       -      +
     59E  PHE*     3.0    25.3    +      -       -      +
     60E  ASP*     3.2    12.2    +      -       -      +
    117E  GLU*     5.4     5.0    +      -       -      +
    118E  GLN*     4.0    17.7    +      -       -      +
    120E  ARG*     3.9    36.1    -      -       -      +
    121E  LEU*     4.2    14.4    -      -       +      +
      9T    C      4.9     3.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 57 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52E  PHE*     4.6     8.1    -      -       +      -
     53E  PRO*     3.6    29.8    -      -       +      +
     54E  SER*     3.2    25.2    +      -       -      +
     55E  LYS      3.2     0.4    -      -       -      -
     56E  THR*     1.3    76.3    -      -       -      +
     58E  MET*     1.3    59.1    +      -       -      +
     59E  PHE      2.9     5.2    -      -       -      -
     60E  ASP*     2.5    55.4    +      -       -      +
     61E  SER*     3.1    19.7    +      -       -      +
    120E  ARG*     3.0    26.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 58 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15E  ILE*     3.6    30.1    -      -       +      -
     16E  LEU*     3.7    21.9    -      -       +      +
     19E  LEU*     3.6    26.7    -      -       +      +
     37E  LEU*     3.7    28.7    -      -       +      -
     48E  LEU*     3.9    20.4    -      -       +      -
     52E  PHE*     3.8    37.7    -      -       +      -
     54E  SER      3.6     3.8    +      -       -      +
     55E  LYS*     3.2    31.4    +      -       +      +
     57E  ARG*     1.3    77.0    -      -       -      +
     59E  PHE*     1.3    59.3    +      -       +      +
     61E  SER      4.4     0.2    -      -       -      -
     62E  LEU*     3.7     9.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 59 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19E  LEU*     3.8    32.3    -      -       +      -
     23E  LEU*     4.5    14.8    -      -       +      -
     32E  ILE*     5.0     7.6    -      -       +      -
     55E  LYS*     3.6    29.8    +      -       +      -
     56E  THR*     3.0     9.7    +      -       -      +
     57E  ARG      2.9     0.8    -      -       -      -
     58E  MET*     1.3    76.0    -      -       -      +
     60E  ASP*     1.3    62.8    +      -       -      +
     61E  SER      3.5     0.7    -      -       -      -
     62E  LEU*     3.8    22.1    -      -       +      +
     63E  ILE*     3.1    29.8    +      -       -      +
    108E  ILE*     5.2     4.7    -      -       +      +
    113E  ALA*     5.0    11.0    -      -       +      -
    114E  LEU*     5.4    10.1    -      -       +      -
    117E  GLU*     3.2    47.3    -      -       +      -
    121E  LEU*     4.3    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 60 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56E  THR*     3.2     8.1    +      -       -      +
     57E  ARG*     2.5    44.8    +      -       -      +
     59E  PHE*     1.3    78.6    -      -       -      +
     61E  SER*     1.3    58.8    +      -       -      +
     63E  ILE*     3.3     5.9    +      -       -      +
     64E  GLU*     2.9    32.8    +      -       +      +
    120E  ARG*     3.6     9.2    +      -       -      -
    121E  LEU*     3.3    23.9    -      -       -      +
    124E  ARG*     3.7    23.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 61 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12E  ARG*     4.5    16.0    +      -       -      -
     16E  LEU*     3.9    31.5    -      -       -      +
     52E  PHE*     4.8     6.6    -      -       -      -
     57E  ARG*     3.1    15.3    +      -       -      +
     60E  ASP*     1.3    75.1    -      -       -      +
     62E  LEU*     1.3    66.2    +      -       -      +
     64E  GLU*     3.2     9.3    +      -       -      +
     65E  PHE*     3.1    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 62 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16E  LEU*     4.2    31.4    -      -       +      +
     19E  LEU*     3.8    17.0    -      -       +      -
     20E  ALA*     5.5     2.9    -      -       +      +
     23E  LEU*     3.8    29.6    -      -       +      -
     58E  MET      3.7    12.9    +      -       -      +
     59E  PHE*     3.8    20.4    +      -       +      +
     61E  SER*     1.3    78.4    -      -       -      +
     63E  ILE*     1.3    62.3    +      -       +      +
     65E  PHE*     3.2    23.6    -      -       -      +
     66E  ILE*     3.2    18.0    +      -       +      +
    105E  LEU*     4.7    15.4    -      -       +      +
    108E  ILE*     4.5    12.8    -      -       +      -
    377N  PHE*     4.9    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 63 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59E  PHE      3.1    16.8    +      -       -      +
     60E  ASP*     3.3     8.2    +      -       -      +
     61E  SER      3.3     0.4    -      -       -      -
     62E  LEU*     1.3    71.8    -      -       -      +
     64E  GLU*     1.3    61.7    +      -       -      +
     66E  ILE*     3.4    10.3    +      -       +      +
     67E  GLU*     2.9    32.9    +      -       +      +
    108E  ILE*     3.4    30.7    -      -       +      -
    114E  LEU*     5.1     0.7    -      -       +      -
    121E  LEU*     3.6    37.2    -      -       +      +
    124E  ARG*     3.5    42.0    -      -       +      +
    125E  ILE*     4.0     9.9    -      -       +      -
    128E  LEU*     5.5     2.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 64 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60E  ASP      2.9    16.3    +      -       -      +
     61E  SER*     3.2    11.4    +      -       -      +
     63E  ILE*     1.3    73.9    -      -       -      +
     65E  PHE*     1.3    53.9    +      -       -      +
     67E  GLU*     2.9    25.4    +      -       -      +
     68E  ASP*     2.6    59.3    +      -       -      +
    124E  ARG*     3.2    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 65 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61E  SER      3.1    11.4    +      -       -      +
     62E  LEU*     3.2    12.8    -      -       -      +
     64E  GLU*     1.3    75.0    -      -       -      +
     66E  ILE*     1.3    55.7    +      -       -      +
     68E  ASP*     3.3     6.8    +      -       -      +
     69E  SER*     2.6    50.4    +      -       -      -
     98E  PHE*     4.3    11.2    -      +       -      -
    102E  ASN*     5.0     0.2    -      -       -      -
    105E  LEU*     3.4    23.8    -      -       +      -
    375N  PRO*     4.7    13.7    -      -       +      -
    376N  ALA      5.0     0.9    -      -       -      -
    377N  PHE*     3.6    52.9    -      +       +      -
----------------------------------------------------------
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Residues in contact with ILE 66 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62E  LEU*     3.2    26.0    +      -       +      +
     63E  ILE*     3.8     9.9    -      -       +      +
     65E  PHE*     1.3    75.4    -      -       -      +
     67E  GLU*     1.3    60.2    +      -       -      +
     69E  SER*     4.6     0.9    -      -       -      -
     70E  LEU*     3.3    40.7    +      -       +      +
     98E  PHE*     3.5    29.8    -      -       +      -
    105E  LEU*     3.6    32.1    -      -       +      +
    108E  ILE*     4.1    16.6    -      -       +      -
    109E  LEU*     4.3    16.4    -      -       +      -
    125E  ILE*     5.7     3.1    -      -       +      -
    128E  LEU*     3.7    21.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 67 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63E  ILE*     2.9    21.2    +      -       +      +
     64E  GLU*     3.0    30.5    -      -       -      +
     66E  ILE*     1.3    78.4    -      -       -      +
     68E  ASP*     1.3    61.5    +      -       -      +
     71E  ILE*     3.2    29.6    -      -       -      +
    124E  ARG*     4.5    24.5    +      -       -      +
    127E  GLN*     5.8     2.1    -      -       -      +
    128E  LEU*     4.0    23.9    +      -       +      +
    131E  ARG*     3.2    29.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 68 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64E  GLU*     2.6    48.2    +      -       -      +
     65E  PHE*     3.9     6.6    +      -       -      +
     67E  GLU*     1.3    78.4    -      -       -      +
     69E  SER*     1.3    58.3    +      -       -      +
     71E  ILE*     4.5     2.4    -      -       -      +
     72E  THR*     2.5    36.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 69 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65E  PHE*     2.6    41.2    +      -       -      -
     66E  ILE      4.1     2.0    -      -       -      -
     67E  GLU      3.4     0.2    -      -       -      -
     68E  ASP*     1.3    75.7    -      -       -      +
     70E  LEU*     1.3    68.7    +      -       -      +
     71E  ILE      3.1     2.2    +      -       -      -
     72E  THR*     3.3    10.2    +      -       -      -
     73E  ARG*     3.3    24.4    +      -       -      +
     98E  PHE*     4.5    11.7    -      -       -      -
    375N  PRO*     4.2    22.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 70 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66E  ILE*     3.3    33.3    +      -       +      +
     69E  SER*     1.3    80.1    -      -       -      +
     71E  ILE*     1.3    64.4    +      -       +      +
     74E  ILE*     3.2    31.2    +      -       +      +
     94E  LEU*     3.4    25.8    -      -       +      +
     95E  LEU*     4.5    17.9    -      -       +      +
     98E  PHE*     3.5    43.5    -      -       +      -
    109E  LEU*     4.6    14.1    -      -       +      -
    128E  LEU*     4.6     3.4    -      -       +      -
    132E  ILE*     4.4    21.1    -      -       +      -
    375N  PRO*     6.1     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 71 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67E  GLU      3.2    20.7    +      -       -      +
     68E  ASP*     4.5     3.8    -      -       -      +
     69E  SER      3.1     0.8    -      -       -      -
     70E  LEU*     1.3    79.9    -      -       +      +
     72E  THR*     1.3    64.1    +      -       -      +
     73E  ARG      3.3     0.4    -      -       -      -
     74E  ILE*     3.8    22.1    -      -       +      +
     75E  ASN*     2.7    47.8    +      -       -      +
    128E  LEU*     3.7    27.4    -      -       +      -
    131E  ARG*     4.1    37.2    -      -       +      +
    132E  ILE*     4.3     9.9    -      -       +      +
    135E  GLN*     5.0     4.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 72 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68E  ASP*     2.5    23.4    +      -       -      +
     69E  SER*     3.3     6.4    +      -       -      -
     71E  ILE*     1.3    81.1    -      -       -      +
     73E  ARG*     1.3    73.1    +      -       -      +
     75E  ASN*     3.2    13.5    +      -       -      +
     76E  LEU*     3.0    30.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 73 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69E  SER*     3.4    14.6    -      -       -      +
     70E  LEU      3.7     1.8    -      -       -      +
     71E  ILE      3.3     0.2    -      -       -      -
     72E  THR*     1.3    92.2    -      -       -      +
     74E  ILE*     1.3    53.7    +      -       -      +
     76E  LEU*     2.8    20.2    +      -       +      +
     77E  ILE*     2.7    41.6    +      -       +      +
     94E  LEU*     3.4    41.9    -      -       +      +
    373N  ASP*     2.4    50.4    +      -       -      +
    374N  ILE*     5.0     0.4    -      -       -      +
    375N  PRO*     3.8    18.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 74 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70E  LEU*     3.2    19.7    +      -       +      +
     71E  ILE*     3.8    19.7    -      -       +      +
     72E  THR      3.3     0.4    -      -       -      -
     73E  ARG*     1.3    72.2    -      -       -      +
     75E  ASN*     1.3    61.6    +      -       -      +
     76E  LEU      2.9     8.5    +      -       -      -
     77E  ILE*     3.2    18.3    +      -       +      +
     78E  LEU*     3.7    11.6    +      -       -      +
     91E  ILE*     4.9    20.6    -      -       +      -
     94E  LEU*     4.4     8.5    -      -       +      -
     95E  LEU*     5.0     7.4    -      -       +      -
    132E  ILE*     4.4    17.0    -      -       +      -
    135E  GLN*     3.2    55.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 75 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71E  ILE*     2.7    34.4    +      -       -      +
     72E  THR*     3.2    10.1    +      -       -      +
     74E  ILE*     1.3    75.2    -      -       -      +
     76E  LEU*     1.3    59.9    +      -       -      +
     77E  ILE      3.6     0.4    -      -       -      -
     78E  LEU*     4.7     4.8    -      -       -      +
     79E  LYS*     4.3    17.0    +      -       -      +
    135E  GLN*     4.0    17.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 76 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72E  THR*     3.0    16.8    +      -       +      +
     73E  ARG*     2.8    29.4    +      -       +      +
     75E  ASN*     1.3    83.1    -      -       -      +
     77E  ILE*     1.3    61.2    +      -       -      +
     78E  LEU      3.5     0.9    -      -       -      -
     79E  LYS*     4.2     8.0    +      -       +      +
     80E  ASP*     3.1    45.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 77 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73E  ARG*     2.7    20.4    +      -       +      +
     74E  ILE*     3.2    12.7    +      -       +      +
     76E  LEU*     1.3    77.8    -      -       -      +
     78E  LEU*     1.3    58.1    +      -       -      +
     80E  ASP*     5.1     0.4    -      -       -      -
     81E  GLU*     3.0    30.7    +      -       +      +
     87E  ARG*     4.1    24.5    -      -       +      +
     90E  LEU*     3.7    49.8    -      -       +      +
     91E  ILE*     3.7    29.4    -      -       +      -
     94E  LEU*     4.7    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 78 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74E  ILE      3.7     8.9    +      -       -      +
     75E  ASN*     5.2     3.4    -      -       -      +
     76E  LEU      3.5     0.2    -      -       -      -
     77E  ILE*     1.3    74.7    -      -       -      +
     79E  LYS*     1.3    82.9    +      -       +      +
     80E  ASP      2.6    17.3    +      -       -      -
     81E  GLU      3.0    20.9    +      -       -      +
     82E  LYS*     4.3     1.6    +      -       -      +
     87E  ARG*     3.8    31.1    +      -       -      +
    138E  GLN*     6.4     2.2    -      -       +      -
    142E  GLU*     4.5    12.6    -      -       -      +
    146E  ARG*     5.2     6.5    -      -       -      +
----------------------------------------------------------
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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