Contacts of the helix formed by residues 73 - 94 (chain C) in PDB entry 2YF3


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LEU 73 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  LEU*     4.2    19.7    -      -       +      -
     68C  LEU*     4.7     6.3    -      -       +      -
     69C  SER      3.8     9.4    -      -       -      +
     70C  ALA*     2.9    21.0    +      -       -      +
     72C  ASP*     1.3    77.4    -      -       -      +
     74C  ALA*     1.3    57.9    +      -       -      +
     75C  PRO*     3.4     1.1    -      -       -      -
     76C  LEU*     3.3     9.6    +      -       +      +
     77C  ALA*     2.9    29.3    +      -       -      +
     29D  PRO*     4.8     1.3    -      -       +      -
     30D  THR      4.0    33.2    -      -       -      +
     31D  PRO*     4.2     2.9    -      -       +      -
     32D  PRO*     3.7    23.8    -      -       +      -
     94D  LEU*     4.4    15.5    -      -       +      +
     96D  ILE*     4.1    26.5    -      -       +      -
    138D  ILE*     5.2     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 74 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  ALA      4.1     1.4    +      -       -      -
     71C  GLY*     3.3    11.7    +      -       -      +
     72C  ASP      3.3     0.8    -      -       -      -
     73C  LEU*     1.3    75.7    -      -       -      +
     75C  PRO*     1.4    71.0    -      -       +      +
     77C  ALA*     3.3     0.8    +      -       -      -
     78C  HIS*     2.8    26.1    +      -       -      +
    134D  VAL*     3.5     9.2    -      -       +      +
    135D  ARG*     3.8    42.4    -      -       +      +
    138D  ILE*     4.1    14.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 75 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54C  GLU*     3.4    30.1    -      -       -      +
     71C  GLY      4.3     2.2    -      -       -      +
     72C  ASP*     3.4    17.7    -      -       -      +
     73C  LEU      3.6     0.2    -      -       -      -
     74C  ALA*     1.4    93.0    -      -       +      +
     76C  LEU*     1.3    62.0    +      -       -      +
     78C  HIS*     3.2     8.9    +      -       +      +
     79C  GLU*     3.0    28.1    +      -       -      +
    135D  ARG*     5.9     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 76 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  VAL*     4.0    17.9    -      -       +      +
     54C  GLU*     3.9    16.7    -      -       +      +
     55C  ILE*     3.7    26.0    -      -       +      -
     58C  LEU*     3.8    28.7    -      -       +      -
     72C  ASP      5.1     0.4    +      -       -      -
     73C  LEU*     3.3    10.3    +      -       +      +
     75C  PRO*     1.3    80.2    -      -       -      +
     77C  ALA*     1.3    63.2    +      -       -      +
     79C  GLU*     3.2     2.0    +      -       -      -
     80C  LEU*     2.9    42.2    +      -       +      +
     37D  LEU*     3.9    17.9    -      -       +      -
     94D  LEU*     3.8    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73C  LEU      2.9    20.1    +      -       -      +
     74C  ALA      3.7     3.6    -      -       -      +
     76C  LEU*     1.3    74.0    -      -       -      +
     78C  HIS*     1.3    63.6    +      -       -      +
     80C  LEU*     3.4     3.4    +      -       -      +
     81C  ALA*     3.1    23.6    +      -       -      +
     91D  LEU*     4.0    19.3    -      -       +      +
     94D  LEU*     5.5     0.8    -      -       -      +
     96D  ILE*     3.9    28.7    -      -       +      -
    101D  VAL*     3.7     6.6    -      -       +      +
    134D  VAL*     4.1    12.1    -      -       +      -
    138D  ILE*     4.4     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  ALA      2.8    17.5    +      -       -      +
     75C  PRO*     3.4     9.6    -      -       +      +
     77C  ALA*     1.3    76.2    -      -       -      +
     79C  GLU*     1.3    71.5    +      -       -      +
     81C  ALA*     3.2     4.7    +      -       -      +
     82C  ASP*     2.9    47.9    +      -       -      -
    101D  VAL*     4.5     1.8    -      -       -      -
    105D  VAL*     4.1    12.5    -      -       +      +
    132D  ALA*     4.7    16.7    +      -       +      +
    134D  VAL*     3.8    25.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47C  GLU*     3.3     6.8    -      -       -      +
     50C  GLU*     2.9    37.9    -      -       +      +
     51C  VAL*     3.3    33.2    -      -       +      +
     54C  GLU*     3.8    22.5    -      -       +      +
     75C  PRO*     3.0    16.9    +      -       +      +
     76C  LEU      3.2     3.3    +      -       -      +
     78C  HIS*     1.3    87.7    +      -       -      +
     80C  LEU*     1.3    61.6    +      -       -      +
     82C  ASP*     3.2    18.4    +      -       -      +
     83C  LEU      2.9    23.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  VAL*     3.9    24.2    -      -       +      -
     55C  ILE*     5.8     0.2    -      -       +      -
     76C  LEU*     2.9    43.0    +      -       +      +
     77C  ALA      3.8     3.6    -      -       -      +
     79C  GLU*     1.3    77.4    -      -       -      +
     81C  ALA*     1.3    56.7    +      -       -      +
     83C  LEU*     3.3     1.8    +      -       +      -
     84C  LEU*     3.0    25.6    +      -       -      +
     44D  LEU*     4.2    10.8    -      -       +      -
     87D  THR*     3.3    29.2    -      -       +      +
     90D  ALA*     4.0    26.7    -      -       +      -
     91D  LEU*     3.9    33.4    -      -       +      -
     94D  LEU*     4.1     9.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77C  ALA      3.1     6.6    +      -       -      +
     78C  HIS      3.6     5.6    -      -       -      +
     80C  LEU*     1.3    72.3    -      -       -      +
     82C  ASP*     1.3    61.9    +      -       -      +
     84C  LEU*     3.2    16.2    +      -       +      +
     85C  TYR*     2.9    27.6    +      -       -      +
     91D  LEU*     4.5     3.7    -      -       +      +
    101D  VAL*     3.5    33.2    -      -       +      -
    102D  PHE*     4.2    16.6    -      -       +      +
    105D  VAL*     4.0    14.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47C  GLU*     3.2    28.5    -      -       -      +
     50C  GLU*     4.3     1.7    -      -       -      +
     78C  HIS*     2.9    36.5    +      -       -      +
     79C  GLU*     3.2    24.0    -      -       -      +
     81C  ALA*     1.3    76.2    -      -       -      +
     83C  LEU*     1.3    60.7    +      -       -      +
     85C  TYR*     3.1    16.7    +      -       -      +
     86C  VAL*     3.1    19.2    +      -       -      +
    105D  VAL*     3.6    20.4    -      -       -      +
    109D  ASN*     5.2     1.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44C  LEU*     4.1    31.9    -      -       +      +
     47C  GLU*     4.0    14.9    -      -       +      +
     48C  SER*     4.2    14.8    -      -       -      +
     51C  VAL*     4.4    16.4    -      -       +      -
     79C  GLU      2.9    14.4    +      -       -      +
     80C  LEU*     3.5     8.5    -      -       +      +
     81C  ALA      3.3     0.4    -      -       -      -
     82C  ASP*     1.3    72.2    -      -       -      +
     84C  LEU*     1.3    61.9    +      -       -      +
     86C  VAL*     3.3     2.8    +      -       +      +
     87C  THR*     2.7    42.8    +      -       -      +
     44D  LEU*     3.9    19.3    -      -       +      -
     48D  SER*     5.4     0.2    -      -       -      +
     83D  LEU*     4.4    10.5    -      -       +      -
     87D  THR*     3.6    27.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  LEU      3.0    18.3    +      -       -      +
     81C  ALA*     3.2    10.1    +      -       +      +
     83C  LEU*     1.3    75.3    -      -       -      +
     85C  TYR*     1.3    65.1    +      -       -      +
     87C  THR*     4.4     0.2    -      -       -      -
     88C  TYR*     2.8    33.0    +      -       +      -
     84D  LEU*     3.8    23.8    -      -       +      +
     87D  THR*     3.6    25.6    -      -       +      -
     88D  TYR*     3.8    43.1    -      -       +      +
     91D  LEU*     4.0    20.6    -      -       +      -
     98D  ALA*     4.5     3.6    -      -       +      -
    102D  PHE*     3.8    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  LEU*     3.6    31.5    -      -       +      +
     17C  PHE*     3.2    40.6    -      +       -      +
     40C  ARG*     4.7     0.2    +      -       -      -
     81C  ALA      2.9    12.2    +      -       -      +
     82C  ASP*     3.1    15.4    +      -       -      +
     84C  LEU*     1.3    77.4    -      -       -      +
     86C  VAL*     1.3    60.4    +      -       +      +
     89C  GLY*     2.9    24.9    +      -       -      -
    102D  PHE*     3.5    26.2    -      +       -      -
    105D  VAL*     4.0     9.2    -      -       +      -
    106D  HIS*     2.8    43.5    +      -       +      -
    109D  ASN*     3.4    34.1    -      -       -      +
     -2E  PRO*     5.3    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  ARG*     3.0    30.3    +      -       -      +
     43C  LEU*     3.9    28.7    -      -       +      +
     44C  LEU*     4.0    20.9    -      -       +      +
     47C  GLU*     3.8    26.7    -      -       +      +
     82C  ASP      3.1    12.0    +      -       -      +
     83C  LEU*     3.5    13.0    -      -       +      +
     85C  TYR*     1.3    79.3    -      -       +      +
     87C  THR*     1.3    61.9    +      -       -      +
     89C  GLY      3.7     0.2    -      -       -      -
     90C  ALA*     3.2    12.5    +      -       -      +
     -2E  PRO*     4.1    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44C  LEU*     3.5    18.2    -      -       -      +
     83C  LEU*     2.7    23.5    +      -       -      +
     84C  LEU*     4.4     0.2    -      -       -      -
     86C  VAL*     1.3    74.8    -      -       -      +
     88C  TYR*     1.3    66.2    +      -       -      +
     89C  GLY      3.1     0.7    -      -       -      -
     90C  ALA*     3.2    12.0    +      -       -      +
     91C  LEU*     3.3    15.3    +      -       -      +
     80D  LEU*     3.3    44.0    -      -       +      +
     83D  LEU*     3.6    13.7    -      -       +      +
     84D  LEU*     3.5    26.0    -      -       +      +
     87D  THR*     5.4     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  ASN*     3.5    20.1    +      -       +      +
     11C  ALA*     3.7    27.6    -      -       +      -
     14C  LEU*     3.7    20.4    -      -       +      +
     84C  LEU*     2.8    28.3    +      -       +      +
     87C  THR*     1.3    73.5    -      -       -      +
     89C  GLY*     1.3    53.5    +      -       -      +
     91C  LEU*     3.1     7.2    +      -       -      +
     92C  ASP*     2.8    35.2    +      -       -      +
     98C  ALA*     3.6    20.3    -      -       +      +
     99C  ASP*     4.3     0.5    +      -       -      -
     10D  ASN*     2.9    25.7    +      -       -      -
     84D  LEU*     3.8    26.0    -      -       +      +
     88D  TYR*     2.5    38.9    +      +       -      -
    102D  PHE*     3.9    16.6    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  LEU*     3.6    17.7    -      -       -      +
     18C  HIS*     3.5     6.5    -      -       -      -
     40C  ARG*     3.5    20.9    -      -       -      -
     85C  TYR      2.9    16.5    +      -       -      -
     87C  THR      3.1     0.6    -      -       -      -
     88C  TYR*     1.3    77.2    -      -       -      +
     90C  ALA*     1.3    59.0    +      -       -      +
     92C  ASP      3.4     0.2    +      -       -      -
     93C  GLN*     3.0    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  ARG*     3.5    32.4    -      -       +      +
     44C  LEU*     5.2     3.6    -      -       +      -
     86C  VAL      3.2    14.4    +      -       -      +
     87C  THR      3.2     8.7    +      -       -      +
     89C  GLY*     1.3    76.0    -      -       -      +
     91C  LEU*     1.3    63.7    +      -       -      +
     93C  GLN*     3.4     3.3    +      -       -      +
     94C  LEU*     3.2    29.9    +      -       +      +
     55D  ILE*     6.4     0.7    -      -       +      -
     76D  LEU*     6.4     0.4    -      -       +      -
     80D  LEU*     3.9    24.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  THR      3.3     8.6    +      -       -      +
     88C  TYR*     3.1     7.6    +      -       -      +
     90C  ALA*     1.3    78.4    -      -       -      +
     92C  ASP*     1.3    63.4    +      -       -      +
     94C  LEU*     3.2    12.2    +      -       +      +
     96C  ILE*     3.0    51.5    +      -       +      +
     98C  ALA*     3.7    26.7    -      -       +      -
    101C  VAL*     4.9     4.3    -      -       +      -
     77D  ALA*     3.9    37.2    -      -       +      +
     80D  LEU*     3.9    25.8    -      -       +      +
     81D  ALA*     4.4     7.9    -      -       +      +
     84D  LEU*     3.9    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ALA      4.4     4.7    -      -       -      +
     14C  LEU*     4.1     9.9    -      -       +      -
     15C  HIS*     3.5    26.8    +      -       -      +
     18C  HIS*     2.7    25.8    +      -       -      +
     25C  THR*     2.5    30.3    +      -       -      -
     26C  PRO*     3.9     9.5    -      -       -      +
     88C  TYR      2.8    19.8    +      -       -      +
     89C  GLY      3.8     4.0    -      -       -      +
     91C  LEU*     1.3    74.2    -      -       -      +
     93C  GLN*     1.3    56.0    +      -       -      +
     95C  GLY*     2.9    20.3    +      -       -      -
     96C  ILE      4.4     4.7    -      -       -      +
     98C  ALA*     5.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  HIS*     3.5    18.2    -      -       +      -
     23C  ALA*     3.6    11.3    -      -       -      +
     24C  ALA*     3.1    45.2    +      -       -      +
     26C  PRO*     3.6    14.3    -      -       -      +
     30C  THR*     4.7     2.3    -      -       -      +
     32C  PRO*     5.3     0.7    -      -       -      +
     36C  LEU*     3.2    48.9    -      -       +      +
     39C  LEU*     4.5     5.7    -      -       -      +
     40C  ARG*     2.9    26.2    +      -       +      +
     89C  GLY      3.0    21.0    +      -       -      +
     90C  ALA      3.4     4.2    +      -       -      +
     92C  ASP*     1.3    74.2    -      -       -      +
     94C  LEU*     1.3    60.8    +      -       +      +
     95C  GLY      3.2     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  PRO*     4.5     1.3    -      -       -      -
     29C  PRO*     3.3     2.4    -      -       -      +
     30C  THR      2.8    36.0    +      -       -      +
     32C  PRO*     3.4    40.4    -      -       +      -
     36C  LEU*     5.7     1.3    -      -       +      -
     37C  LEU*     4.5     8.1    -      -       +      -
     40C  ARG*     6.4     2.5    -      -       +      -
     90C  ALA*     3.2    17.8    +      -       +      +
     91C  LEU*     3.6    10.3    -      -       +      +
     92C  ASP      3.2     0.2    -      -       -      -
     93C  GLN*     1.3    76.0    -      -       +      +
     95C  GLY*     1.3    56.6    -      -       -      +
     96C  ILE*     3.4    25.5    +      -       +      +
     73D  LEU*     4.5    10.3    -      -       +      -
     76D  LEU*     3.8    25.1    -      -       +      -
     77D  ALA      5.5     1.3    -      -       -      +
     80D  LEU*     4.2    14.4    -      -       +      -
----------------------------------------------------------
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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