Contacts of the helix formed by residues 59 - 82 (chain D) in PDB entry 3KAV


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 59 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ARG*     5.4     0.2    -      -       -      +
     57D  GLU      3.7     1.9    +      -       -      -
     58D  SER*     1.3    75.6    -      -       -      +
     60D  ARG*     1.3    87.0    +      -       -      +
     61D  GLU*     3.4     8.5    +      -       -      +
     62D  GLN*     2.8    37.7    +      -       -      +
     63D  ARG*     3.0    29.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 60 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ARG*     5.6     2.2    -      -       -      +
     42A  GLN*     5.2    11.7    +      -       -      +
     46A  ARG*     5.1    11.5    -      -       -      +
     58D  SER      5.0     0.2    +      -       -      -
     59D  SER*     1.3   102.0    -      -       -      +
     61D  GLU*     1.3    66.7    +      -       +      +
     63D  ARG*     3.3    25.4    +      -       -      +
     64D  GLN*     2.9    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 61 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  PRO*     5.3     7.2    -      -       -      +
     59D  SER*     3.3     8.2    +      -       -      +
     60D  ARG*     1.3    89.9    -      -       +      +
     62D  GLN*     1.3    56.7    +      -       +      +
     64D  GLN*     3.2    10.4    +      -       -      +
     65D  HIS*     2.9    56.7    +      -       +      +
    104D  ARG*     4.0    22.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 62 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51D  TYR*     3.3    25.3    +      -       -      +
     57D  GLU      4.0     4.0    -      -       -      +
     58D  SER*     3.5     6.1    -      -       -      -
     59D  SER*     2.8    40.3    +      -       -      +
     61D  GLU*     1.3    75.7    -      -       +      +
     63D  ARG*     1.3    61.3    +      -       -      +
     65D  HIS*     3.3     4.4    +      -       -      -
     66D  ALA*     2.9    32.6    +      -       -      +
    104D  ARG*     2.6    33.3    +      -       +      +
    105D  CYS*     3.7    19.7    +      -       -      +
    106D  ASP      5.5     0.8    +      -       -      -
    112D  GLU*     6.0     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 63 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  GLU*     4.2     5.6    +      -       -      -
     38A  ARG*     4.0     4.2    -      -       -      +
     39A  LEU*     3.6    43.8    -      -       -      +
     42A  GLN*     4.2     6.3    -      -       -      +
     82C  ARG*     4.2     2.0    +      -       -      -
     51D  TYR*     4.7     2.9    -      -       -      -
     52D  LEU*     3.3    39.9    -      -       +      +
     58D  SER*     3.0    36.5    +      -       -      +
     59D  SER*     3.0    24.7    +      -       -      +
     60D  ARG*     3.4    23.8    -      -       -      +
     61D  GLU      3.2     0.2    -      -       -      -
     62D  GLN*     1.3    78.3    -      -       -      +
     64D  GLN*     1.3    57.3    +      -       -      +
     66D  ALA*     4.7     0.4    -      -       -      -
     67D  GLY*     2.9    25.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 64 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  ARG*     3.3    42.4    +      -       -      +
     83C  ARG      4.1     4.5    -      -       -      +
     84C  SER*     3.5     5.3    -      -       -      +
     85C  PRO*     3.8    22.6    -      -       +      +
     60D  ARG      2.9    13.2    +      -       -      +
     61D  GLU*     3.4    17.2    -      -       -      +
     63D  ARG*     1.3    76.8    -      -       -      +
     65D  HIS*     1.3    55.6    +      -       -      +
     67D  GLY      3.1     1.0    +      -       -      -
     68D  ASP*     2.7    73.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 65 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  PRO*     4.8     8.5    -      -       +      +
     86C  TRP*     3.7    44.9    +      +       +      -
     61D  GLU*     2.9    44.9    +      -       +      +
     62D  GLN*     3.7     6.3    -      -       -      +
     64D  GLN*     1.3    79.8    -      -       +      +
     66D  ALA*     1.3    53.1    +      -       -      +
     68D  ASP*     4.6     0.2    -      -       -      -
     69D  CYS*     2.7    37.9    +      -       -      +
    100D  ALA*     4.3     7.5    -      -       +      +
    101D  CYS*     4.0    12.3    -      -       -      -
    104D  ARG*     3.5    50.5    +      -       +      -
    105D  CYS*     4.6     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 66 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  CYS*     3.4    22.4    -      -       +      +
     51D  TYR*     3.6    27.8    -      -       +      -
     52D  LEU*     4.2    10.2    -      -       +      +
     62D  GLN      2.9    20.4    +      -       -      +
     63D  ARG      4.0     2.9    -      -       -      +
     65D  HIS*     1.3    73.7    -      -       -      +
     67D  GLY*     1.3    62.4    +      -       -      +
     70D  ALA*     3.1    18.7    +      -       -      +
    101D  CYS*     3.7    19.0    -      -       -      -
    105D  CYS*     4.5     0.7    -      -       -      -
    115D  CYS*     4.7     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 67 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  ARG*     3.2    22.8    -      -       -      -
     52D  LEU*     3.8    17.2    -      -       -      +
     63D  ARG      2.9    13.8    +      -       -      -
     64D  GLN      3.1     0.2    +      -       -      -
     66D  ALA*     1.3    77.8    -      -       -      +
     68D  ASP*     1.3    60.6    +      -       -      +
     70D  ALA*     3.4     5.9    +      -       -      +
     71D  ASP*     3.2    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 68 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79C  LEU*     3.6    11.0    -      -       +      +
     82C  ARG*     2.9    26.5    +      -       -      -
     84C  SER*     2.7    30.3    +      -       -      +
     85C  PRO*     4.0     1.7    -      -       -      +
     86C  TRP*     3.6    23.0    -      -       +      -
     64D  GLN*     2.7    45.1    +      -       -      +
     65D  HIS*     4.4     0.5    +      -       -      -
     67D  GLY*     1.3    69.2    -      -       -      +
     69D  CYS*     1.3    67.0    +      -       -      +
     71D  ASP*     3.1     8.5    +      -       -      +
     72D  LEU*     2.9    28.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 69 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  TRP*     4.0     8.2    -      -       +      -
     44D  CYS*     3.8    15.5    -      -       -      -
     48D  CYS*     3.9     3.4    -      -       -      -
     65D  HIS      2.7    23.5    +      -       -      +
     66D  ALA      3.7     4.9    -      -       -      +
     68D  ASP*     1.3    72.8    -      -       -      +
     70D  ALA*     1.3    63.1    +      -       -      +
     72D  LEU*     3.1     9.4    +      -       -      +
     73D  CYS*     2.9    28.0    +      -       -      -
     94D  ALA      5.3     0.9    -      -       -      -
     97D  TYR*     5.7     0.4    -      -       -      -
     98D  ALA*     3.8    16.8    -      -       -      -
    101D  CYS*     3.8    27.4    -      -       +      -
    119D  CYS*     3.8    18.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  ILE*     3.9    21.8    -      -       -      +
     48D  CYS*     4.1    13.2    -      -       +      -
     49D  GLU*     4.8     5.4    -      -       +      +
     52D  LEU*     5.7     2.0    -      -       +      -
     66D  ALA      3.1    14.2    +      -       -      +
     67D  GLY*     3.6     7.0    -      -       -      +
     68D  ASP      3.2     0.2    -      -       -      -
     69D  CYS*     1.3    79.6    -      -       -      +
     71D  ASP*     1.3    61.2    +      -       -      +
     73D  CYS*     3.3     2.9    +      -       -      +
     74D  ARG*     2.9    48.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  LEU*     3.7    22.3    -      -       +      +
     78C  LEU*     3.2    41.8    -      -       +      +
     79C  LEU*     4.1     5.8    -      -       +      +
     82C  ARG*     3.6    13.3    +      -       -      -
     67D  GLY      3.2    15.1    +      -       -      +
     68D  ASP*     3.1     9.4    +      -       -      +
     70D  ALA*     1.3    77.0    -      -       -      +
     72D  LEU*     1.3    62.5    +      -       -      +
     74D  ARG*     3.2    26.5    +      -       -      +
     75D  LEU*     3.1    17.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 72 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  LEU*     3.5    31.9    -      -       +      -
     79C  LEU*     4.5    12.6    -      -       +      -
     86C  TRP*     4.0    11.9    -      -       +      -
     68D  ASP      2.9    20.7    +      -       -      +
     69D  CYS*     3.6     7.2    -      -       -      +
     71D  ASP*     1.3    76.4    -      -       -      +
     73D  CYS*     1.3    63.9    +      -       -      +
     75D  LEU*     3.0     7.2    +      -       +      +
     76D  ALA*     2.9    22.7    +      -       -      +
     90D  ALA      5.7     0.4    -      -       -      +
     93D  LEU*     3.3    31.9    -      -       +      +
     94D  ALA*     4.0    17.7    -      -       +      +
     97D  TYR*     3.9    35.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 73 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41D  ALA*     3.8    10.8    -      -       +      +
     44D  CYS*     3.5    33.0    -      -       -      -
     45D  ILE*     3.3    25.1    -      -       +      -
     69D  CYS*     2.9    26.7    +      -       -      +
     72D  LEU*     1.3    73.7    -      -       -      +
     74D  ARG*     1.3    53.1    +      -       -      +
     76D  ALA*     3.6     7.9    -      -       -      +
     77D  ALA*     2.8    35.9    +      -       -      +
     94D  ALA*     4.5     3.6    -      -       -      -
     98D  ALA*     5.1     0.7    -      -       -      -
    122D  PHE*     3.9    26.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 74 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  LEU*     6.2     1.1    -      -       -      -
     45D  ILE*     4.1    19.4    -      -       +      +
     49D  GLU*     2.5    32.4    +      -       -      +
     70D  ALA*     2.9    41.4    +      -       -      +
     71D  ASP*     3.3    25.0    +      -       -      +
     72D  LEU      3.1     0.2    -      -       -      -
     73D  CYS*     1.3    74.4    -      -       -      +
     75D  LEU*     1.3    59.8    +      -       -      +
     77D  ALA*     3.3     6.2    +      -       -      +
     78D  LEU*     2.9    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 75 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  ASP*     3.8    41.7    -      -       +      +
     72C  LEU*     3.5    29.2    -      -       +      +
     75C  LEU*     3.3    34.5    -      -       +      -
     93C  LEU*     5.5     1.1    -      -       +      -
     71D  ASP      3.1     8.2    +      -       -      +
     72D  LEU*     3.0     9.7    +      -       +      +
     74D  ARG*     1.3    80.4    -      -       -      +
     76D  ALA*     1.3    63.2    +      -       -      +
     78D  LEU*     3.0     9.4    +      -       +      +
     79D  LEU*     3.0    31.9    +      -       +      +
     90D  ALA*     4.1    14.6    -      -       +      +
     93D  LEU*     6.4     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 76 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72D  LEU      2.9    12.5    +      -       -      +
     73D  CYS*     3.6     9.0    -      -       -      +
     75D  LEU*     1.3    79.4    -      -       -      +
     77D  ALA*     1.3    57.6    +      -       -      +
     79D  LEU*     3.3     2.4    +      -       -      +
     80D  MSE      3.0    35.1    +      -       -      +
     87D  ALA*     5.0     0.2    -      -       -      +
     90D  ALA*     4.1    13.7    -      -       -      -
     91D  CYS*     4.2    23.9    -      -       -      +
     94D  ALA*     4.2    17.3    -      -       +      -
    122D  PHE*     4.4     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 77 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  ARG*     4.2    14.8    -      -       +      +
     41D  ALA*     4.3    16.1    -      -       +      +
     42D  GLN*     4.8     8.5    -      -       +      -
     45D  ILE*     6.0     0.9    -      -       +      -
     73D  CYS      2.8    22.5    +      -       -      +
     74D  ARG*     3.6     7.0    -      -       -      +
     75D  LEU      3.2     0.2    -      -       -      -
     76D  ALA*     1.3    74.0    -      -       -      +
     78D  LEU*     1.3    57.6    +      -       -      +
     80D  MSE      3.4     4.9    +      -       -      +
     81D  GLU*     3.0    44.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 78 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  ASP*     3.6    33.7    -      -       +      +
     74C  ARG*     6.3     0.4    -      -       -      -
     74D  ARG      2.9    17.0    +      -       -      +
     75D  LEU*     3.0     8.7    +      -       +      +
     77D  ALA*     1.3    74.4    -      -       -      +
     79D  LEU*     1.3    64.0    +      -       +      +
     81D  GLU*     3.3    17.5    +      -       +      +
     82D  ARG*     2.9    55.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 79 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  ASP*     3.2    44.4    -      -       +      +
     71C  ASP*     4.7     5.6    -      -       +      +
     72C  LEU*     4.2    18.6    -      -       +      -
     93C  LEU*     6.1     0.2    -      -       +      -
     75D  LEU*     3.0    23.7    +      -       +      +
     76D  ALA      3.8     4.0    -      -       -      +
     78D  LEU*     1.3    77.4    -      -       +      +
     80D  MSE      1.3    61.1    +      -       -      +
     82D  ARG*     3.5     6.4    +      -       -      -
     83D  ARG      3.2     2.1    +      -       -      -
     84D  SER*     2.7    36.7    +      -       -      +
     86D  TRP*     3.9    19.5    -      -       +      +
     87D  ALA*     3.9    10.4    -      -       -      +
     90D  ALA*     3.5    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MSE 80 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  GLU*     3.4    39.5    -      -       +      +
     37D  CYS*     3.2    38.1    -      -       +      -
     38D  ARG*     3.7    24.0    -      -       +      -
     41D  ALA*     5.6     0.7    -      -       -      -
     76D  ALA*     3.0    25.0    +      -       -      +
     77D  ALA*     3.7     5.2    -      -       -      +
     78D  LEU      3.2     0.2    -      -       -      -
     79D  LEU*     1.3    75.2    -      -       -      +
     81D  GLU*     1.3    58.1    +      -       -      +
     83D  ARG*     2.8    34.3    +      -       -      -
     87D  ALA*     4.0    14.1    -      -       +      -
     88D  PRO*     6.0     0.4    -      -       +      -
     91D  CYS*     3.4    17.7    -      -       -      -
    122D  PHE*     5.6     0.9    -      -       -      -
    129D  LEU*     3.2    23.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  ARG*     3.4    41.1    +      -       -      +
     42D  GLN*     3.7     9.4    -      -       -      +
     77D  ALA*     3.0    28.3    +      -       -      +
     78D  LEU*     3.5    18.8    -      -       +      +
     80D  MSE      1.3    78.1    -      -       -      +
     82D  ARG*     1.3    58.4    +      -       -      +
     83D  ARG*     3.2    11.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52C  LEU*     5.7     0.2    -      -       -      +
     64C  GLN*     3.4    23.0    +      -       -      +
     67C  GLY*     3.3    28.5    +      -       -      -
     68C  ASP*     3.1    20.3    +      -       -      +
     71C  ASP*     2.9    25.2    +      -       -      -
     78D  LEU*     2.9    32.9    -      -       +      +
     79D  LEU*     3.5    13.2    -      -       -      +
     81D  GLU*     1.3    75.9    -      -       +      +
     83D  ARG*     1.3    68.7    +      -       -      +
     84D  SER      2.9     3.4    +      -       -      -
----------------------------------------------------------
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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