Contacts of the helix formed by residues 84 - 108 (chain C) in PDB entry 3A98


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 GLU 84 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  PRO*     2.9    13.1    +      -       -      +
     83C  ALA*     1.3    71.4    -      -       -      +
     85C  ILE*     1.3    69.8    +      -       +      +
     86C  PRO*     3.2     3.4    -      -       -      +
     87C  LEU*     3.5     2.2    +      -       -      +
     88C  ALA*     3.2    22.0    +      -       -      +
    131C  LEU*     5.4     8.6    -      -       -      +
    132C  LEU*     4.9     3.0    -      -       -      +
    138C  LYS*     5.4     4.5    -      -       -      -
    141C  LEU*     4.0    17.4    -      -       -      +
    145C  LYS*     2.8    37.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  GLU*     5.6    12.1    -      -       +      +
     70C  THR      6.1     0.4    -      -       -      +
     84C  GLU*     1.3    78.2    -      -       +      +
     86C  PRO*     1.3    78.7    -      -       +      +
     88C  ALA*     3.5     7.6    +      -       -      +
     89C  GLN*     3.2    21.6    +      -       +      +
    132C  LEU*     4.9    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  THR      6.0     1.8    -      -       -      +
     82C  PRO      5.0     0.2    -      -       -      +
     83C  ALA*     3.3    25.8    -      -       +      -
     84C  GLU      3.2     8.3    -      -       -      +
     85C  ILE*     1.3   101.7    -      -       +      +
     87C  LEU*     1.3    59.3    +      -       -      +
     89C  GLN*     3.1    16.9    +      -       +      +
     90C  GLU*     2.8    27.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83C  ALA*     2.7    28.7    +      -       +      +
     84C  GLU*     3.9     2.5    -      -       -      +
     85C  ILE      3.4     0.4    -      -       -      -
     86C  PRO*     1.3    78.7    -      -       -      +
     88C  ALA*     1.3    55.6    -      -       -      +
     90C  GLU*     2.9    25.8    +      -       -      +
     91C  VAL*     2.7    38.0    +      -       +      +
    131C  LEU*     4.0    17.9    -      -       +      -
    145C  LYS*     4.1    17.3    -      -       +      -
    148C  VAL*     3.8    24.7    -      -       +      -
    149C  THR*     3.7    28.7    -      -       +      -
    152C  ILE*     4.0    12.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84C  GLU      3.2    11.3    +      -       -      +
     85C  ILE*     3.6    10.3    -      -       +      +
     87C  LEU*     1.3    78.8    -      -       -      +
     89C  GLN*     1.3    57.1    +      -       -      +
     91C  VAL*     3.4     7.4    +      -       -      +
     92C  THR*     3.1    21.3    +      -       -      -
    128C  ARG*     3.2    26.4    +      -       +      +
    131C  LEU*     5.4     6.2    -      -       +      +
    132C  LEU*     3.8    36.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69C  VAL*     3.6    18.6    +      -       -      +
     70C  THR      3.5    26.6    +      -       -      +
     85C  ILE*     3.2    13.8    +      -       +      +
     86C  PRO*     3.1    19.6    +      -       +      +
     87C  LEU      3.0     0.4    -      -       -      -
     88C  ALA*     1.3    78.4    -      -       -      +
     90C  GLU*     1.3    63.3    +      -       -      +
     92C  THR*     3.2     9.5    +      -       -      +
     93C  THR*     3.1    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  PRO      2.8    12.7    +      -       -      +
     87C  LEU*     2.9    24.5    +      -       +      +
     89C  GLN*     1.3    74.1    -      -       -      +
     91C  VAL*     1.3    56.3    +      -       -      +
     93C  THR*     3.3     7.6    +      -       -      +
     94C  THR*     2.6    44.6    +      -       -      +
    149C  THR*     5.6     0.9    -      -       -      +
    152C  ILE*     3.7    28.0    -      -       +      +
    153C  ASP*     5.1     2.9    -      -       -      +
    156C  ASN*     5.3     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  LEU*     2.7    19.7    +      -       +      +
     88C  ALA*     3.4    11.0    -      -       -      +
     89C  GLN      3.2     0.2    -      -       -      -
     90C  GLU*     1.3    76.5    -      -       -      +
     92C  THR*     1.3    56.6    +      -       -      +
     94C  THR*     3.2     6.5    +      -       -      -
     95C  LEU*     2.8    49.8    +      -       +      +
    124C  LEU*     3.9    27.1    -      -       +      +
    128C  ARG*     3.6    22.0    -      -       +      -
    131C  LEU*     5.6     1.3    -      -       +      -
    148C  VAL*     3.7    29.8    -      -       +      -
    152C  ILE*     4.1     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  LYS*     5.4     2.2    -      -       -      +
     88C  ALA      3.1     5.0    +      -       -      -
     89C  GLN*     3.2    11.5    +      -       -      -
     91C  VAL*     1.3    78.7    -      -       -      +
     93C  THR*     1.3    64.6    +      -       -      +
     95C  LEU*     3.3     2.9    +      -       -      +
     96C  TRP*     3.1    41.3    +      -       +      +
    128C  ARG*     3.2    31.7    +      -       -      -
    699D  LEU*     4.0    20.6    -      -       +      +
    700D  ASP*     4.3    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89C  GLN*     3.1    16.6    +      -       -      +
     90C  GLU*     3.8     9.4    -      -       -      -
     92C  THR*     1.3    79.8    -      -       -      +
     94C  THR*     1.3    64.2    +      -       -      +
     96C  TRP*     3.4     7.1    +      -       -      +
     97C  GLU*     3.1    39.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  GLU*     2.6    30.1    +      -       -      +
     91C  VAL*     3.5     7.6    -      -       -      -
     93C  THR*     1.3    78.6    -      -       -      +
     95C  LEU*     1.3    56.9    +      -       -      +
     97C  GLU*     3.0     8.8    +      -       -      +
     98C  TRP*     2.8    71.7    +      -       +      +
    124C  LEU*     4.1     7.9    -      -       +      -
    152C  ILE*     3.9    19.6    -      -       +      +
    156C  ASN*     4.1     8.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91C  VAL*     2.8    43.2    +      -       +      +
     92C  THR      3.6     4.5    -      -       -      +
     94C  THR*     1.3    73.3    -      -       -      +
     96C  TRP*     1.3    57.4    +      -       -      +
     98C  TRP*     3.3     2.4    +      -       +      -
     99C  GLY*     2.8    28.9    +      -       -      -
    121C  MSE      3.7    51.9    -      -       +      +
    124C  LEU*     4.1    13.9    -      -       +      -
    125C  MSE      3.6    27.4    -      -       +      +
    696D  LEU*     3.7    14.4    -      -       +      +
    699D  LEU*     3.9    21.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  LYS*     3.2    49.2    -      -       +      +
     92C  THR*     3.1    42.5    +      -       +      +
     93C  THR*     3.9     7.4    -      -       -      +
     94C  THR      3.3     0.2    -      -       -      -
     95C  LEU*     1.3    78.1    -      -       -      +
     97C  GLU*     1.3    63.0    +      -       +      +
     99C  GLY*     3.5     0.9    +      -       -      -
    100C  SER*     3.4    19.1    +      -       -      -
    693D  GLU*     3.8    17.7    -      -       -      -
    696D  LEU*     3.6    51.3    +      -       +      -
    697D  ARG*     3.7    29.8    -      -       +      -
    699D  LEU*     4.3     3.9    -      -       +      +
    700D  ASP*     5.6     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  THR*     3.1    27.3    +      -       +      +
     94C  THR*     3.0    10.4    +      -       -      +
     96C  TRP*     1.3    75.8    -      -       +      +
     98C  TRP*     1.3    66.5    +      -       +      +
    100C  SER*     3.4    14.0    +      -       -      -
    101C  ILE*     3.5    16.7    +      -       -      +
    161C  LEU*     4.3    26.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  THR*     2.8    36.4    +      -       +      +
     95C  LEU*     3.9     4.7    -      -       +      +
     97C  GLU*     1.3    74.3    -      -       +      +
     99C  GLY*     1.3    52.4    +      -       -      +
    101C  ILE*     3.1     5.3    +      -       -      +
    102C  TRP*     2.7    35.9    +      -       -      +
    117C  VAL*     4.5     3.4    -      -       +      +
    120C  MSE      3.7    30.5    -      -       +      -
    121C  MSE      4.0    28.0    -      -       +      -
    124C  LEU*     3.3    33.4    -      -       +      -
    151C  LYS*     3.5    21.5    -      -       +      -
    152C  ILE*     3.6    12.3    -      -       -      -
    155C  GLY*     3.4    25.8    -      -       -      -
    156C  ASN*     3.0    21.6    +      -       -      +
    159C  LEU*     3.7    21.3    -      -       +      +
    161C  LEU*     3.7    19.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95C  LEU      2.8    17.2    +      -       -      -
     96C  TRP      3.5     2.2    +      -       -      -
     97C  GLU      3.2     0.2    -      -       -      -
     98C  TRP*     1.3    77.1    -      -       -      +
    100C  SER*     1.3    59.7    +      -       -      +
    102C  TRP*     3.3     8.5    +      -       -      +
    103C  LYS*     3.2    33.2    +      -       -      +
    121C  MSE      3.6    18.1    -      -       -      +
    696D  LEU*     4.6    10.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  TRP      3.4    12.1    +      -       -      -
     97C  GLU*     3.7     9.6    -      -       -      -
     98C  TRP      3.2     0.4    -      -       -      -
     99C  GLY*     1.3    75.4    -      -       -      +
    101C  ILE*     1.3    65.4    +      -       -      +
    103C  LYS*     3.5    12.8    +      -       -      +
    104C  GLN*     3.4    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  GLU      3.5     9.6    +      -       -      +
     98C  TRP*     3.1     8.4    +      -       -      +
    100C  SER*     1.3    75.8    -      -       -      +
    102C  TRP*     1.3    65.0    +      -       -      +
    104C  GLN*     3.0    23.6    +      -       +      +
    105C  LEU*     2.9    37.9    +      -       +      +
    159C  LEU*     4.1    30.5    -      -       +      +
    161C  LEU*     3.5    42.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  TRP      2.7    20.3    +      -       -      +
     99C  GLY*     3.4    12.1    -      -       -      +
    100C  SER      3.3     0.2    -      -       -      -
    101C  ILE*     1.3    73.5    -      -       -      +
    103C  LYS*     1.3    61.2    +      -       +      +
    105C  LEU*     3.1    11.3    +      -       +      +
    106C  TYR*     2.9    23.6    +      -       -      +
    114C  PHE*     2.9    67.6    +      +       -      -
    117C  VAL*     3.6    20.4    -      -       +      +
    118C  GLN*     3.6    29.8    -      -       +      +
    121C  MSE      4.1    10.5    -      -       +      -
    122C  TYR*     5.4     0.9    -      -       -      -
    688D  THR*     3.5    27.6    -      -       +      -
    689D  LEU*     3.7    23.3    -      -       +      -
    692D  MSE      3.4    37.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  GLY*     3.2    17.1    +      -       -      +
    100C  SER*     3.8    12.2    -      -       -      +
    101C  ILE      3.3     0.2    -      -       -      -
    102C  TRP*     1.3    81.2    -      -       +      +
    104C  GLN*     1.3    57.6    +      -       +      +
    106C  TYR*     3.2     8.0    +      -       -      +
    107C  VAL*     2.9    36.1    +      -       -      +
    543D  GLU*     3.9    15.1    +      -       -      -
    544D  ILE*     5.2     4.5    -      -       -      -
    547D  LEU*     3.8    33.9    -      -       +      -
    689D  LEU*     4.9    11.4    -      -       +      -
    693D  GLU*     2.9    36.3    +      -       -      -
    696D  LEU*     6.1     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  SER*     3.4    28.5    +      -       -      +
    101C  ILE*     3.0    28.8    +      -       +      +
    103C  LYS*     1.3    74.4    -      -       +      +
    105C  LEU*     1.3    67.6    +      -       +      +
    107C  VAL*     3.6     5.5    +      -       -      +
    108C  ALA*     3.1    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  ILE*     2.9    32.0    +      -       +      +
    102C  TRP*     3.1    13.7    +      -       -      +
    104C  GLN*     1.3    75.4    -      -       +      +
    106C  TYR*     1.3    68.1    +      -       -      +
    108C  ALA      3.3     1.2    +      -       -      -
    109C  SER      3.0    14.7    +      -       -      -
    110C  LYS*     3.1    37.6    +      -       +      -
    113C  ARG*     4.0    24.7    -      -       +      +
    114C  PHE*     4.1    16.3    -      -       +      +
    117C  VAL*     3.8    29.2    -      -       +      -
    159C  LEU*     4.6     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 106 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102C  TRP      2.9     8.4    +      -       -      +
    103C  LYS*     3.4    10.8    -      -       -      +
    105C  LEU*     1.3    75.5    -      -       -      +
    107C  VAL*     1.3    74.6    +      -       +      +
    109C  SER*     2.7    27.2    +      -       -      +
    114C  PHE*     3.5    40.5    -      +       +      -
    547D  LEU*     3.8     5.8    -      -       +      -
    548D  ILE*     3.4    27.8    -      -       -      +
    551D  GLN*     3.4    39.9    +      -       +      +
    552D  ARG*     3.7     4.0    +      -       -      -
    685D  ASP*     2.6    42.7    +      -       +      +
    689D  LEU*     3.5    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 107 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103C  LYS      2.9    19.6    +      -       -      +
    104C  GLN*     4.1     5.6    -      -       -      +
    106C  TYR*     1.3    74.4    -      -       +      +
    108C  ALA*     1.3    58.0    +      -       -      +
    109C  SER*     3.3     0.9    +      -       -      -
    547D  LEU*     3.7    40.8    -      -       +      +
    550D  GLN*     3.8    27.4    -      -       +      +
    551D  GLN*     3.6    18.7    -      -       -      +
    554D  ASN*     2.9    41.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  GLN      3.1    17.3    +      -       -      +
    105C  LEU      3.3     0.2    +      -       -      -
    106C  TYR      2.9     1.0    +      -       -      -
    107C  VAL*     1.3    77.0    -      -       -      +
    109C  SER*     1.3    69.6    +      -       -      +
    110C  LYS*     3.3    28.8    +      -       +      -
    554D  ASN*     4.7     6.1    -      -       -      +
----------------------------------------------------------
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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