Contacts of the helix formed by residues 93 - 117 (chain A) in PDB entry 5C6P


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 ALA 93 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  ILE*     4.2    15.9    -      -       +      +
     84A  LEU*     3.9    28.2    -      -       +      +
     89A  LYS      2.6    18.8    +      -       -      +
     90A  THR*     3.6    11.2    -      -       -      +
     92A  GLU*     1.3    71.5    -      -       -      +
     94A  GLY*     1.3    51.0    -      -       -      +
     96A  THR*     2.8    12.1    +      -       -      -
     97A  GLY      2.6    29.8    +      -       -      -
    227A  PHE*     3.1    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  THR      2.6    23.4    +      -       -      -
     91A  GLY*     3.1     9.0    -      -       -      -
     93A  ALA*     1.3    70.6    -      -       -      +
     95A  GLU*     1.3    53.0    +      -       -      +
     96A  THR      2.8     4.5    -      -       -      -
     97A  GLY      2.7     4.0    +      -       -      -
     98A  ARG*     2.6    34.5    +      -       -      +
    227A  PHE*     3.3    18.4    -      -       -      -
    229A  PRO*     3.6    11.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  GLY      2.5    21.3    +      -       -      +
     92A  GLU*     3.6    39.0    -      -       +      +
     94A  GLY*     1.3    71.3    -      -       -      +
     96A  THR*     1.3    54.0    +      -       -      +
     98A  ARG*     2.9    44.8    +      -       -      +
     99A  GLN*     2.4    37.1    -      -       -      +
    229A  PRO*     3.8     2.2    -      -       +      +
    241A  TRP*     4.3    14.3    -      -       -      -
    243A  VAL*     4.4    18.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  LEU*     5.2     4.6    -      -       +      +
     80A  MET*     5.5    13.2    -      -       +      -
     81A  ILE*     5.3     6.3    -      -       +      -
     84A  LEU*     4.6     4.4    -      -       +      +
     92A  GLU*     2.7    24.4    +      -       -      -
     93A  ALA*     2.8    13.2    +      -       -      -
     95A  GLU*     1.3    78.1    +      -       -      +
     97A  GLY*     1.3    52.2    +      -       -      +
     99A  GLN*     2.6     7.7    +      -       -      +
    100A  GLY*     2.5    35.5    +      -       -      -
    243A  VAL*     3.9    32.3    -      -       +      +
    246A  GLN*     5.3     7.4    -      -       -      +
    247A  ILE*     5.1     7.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  LEU*     5.7     0.7    -      -       -      -
     81A  ILE*     4.2     6.9    -      -       -      +
     93A  ALA      2.6    14.3    +      -       -      -
     94A  GLY      2.7     3.0    +      -       -      -
     96A  THR*     1.3    67.2    -      -       -      +
     98A  ARG*     1.3    62.0    +      -       -      -
    101A  ILE*     2.8     2.6    +      -       -      -
    157A  HIS*     2.5    41.7    +      -       -      -
    227A  PHE*     3.0    28.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  GLY      2.6    11.2    +      -       -      +
     95A  GLU*     2.9    54.0    +      -       -      +
     97A  GLY*     1.3    67.3    -      -       -      -
     99A  GLN*     1.3    83.2    +      -       -      +
    101A  ILE*     2.7    33.9    +      -       -      +
    102A  TRP*     2.8    13.7    +      -       -      +
    227A  PHE*     4.0     3.4    +      -       -      -
    229A  PRO*     3.3    50.4    +      -       +      +
    230A  PHE*     4.1     3.4    -      -       +      +
    231A  GLY      4.3     7.3    +      -       -      -
    232A  LEU      5.5     0.4    +      -       -      -
    233A  THR*     3.2    24.1    -      -       +      +
    234A  ALA      5.3     0.6    -      -       -      +
    241A  TRP*     5.5     3.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  GLU*     2.4    28.0    -      -       -      +
     96A  THR*     2.6    14.0    +      -       -      +
     98A  ARG*     1.3   101.5    -      -       -      +
    100A  GLY*     1.3    51.7    +      -       -      -
    102A  TRP*     3.1     5.7    -      -       -      +
    103A  PHE      2.8     8.1    +      -       -      -
    233A  THR*     3.5     7.3    -      -       -      +
    234A  ALA      2.5    46.7    +      -       -      +
    241A  TRP*     2.8    27.7    +      -       -      +
    243A  VAL*     3.2    24.9    -      -       +      +
    244A  PHE*     2.5    37.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  MET*     4.0     1.7    -      -       -      +
     77A  LEU*     4.1     6.1    -      -       -      -
     96A  THR      2.5    15.7    +      -       -      -
     99A  GLN*     1.3    69.1    -      -       -      +
    101A  ILE*     1.3    50.3    +      -       -      +
    102A  TRP      2.9     5.6    -      -       -      -
    103A  PHE*     3.0    10.6    -      -       -      +
    104A  GLY*     2.2    37.2    +      -       -      -
    157A  HIS*     3.0    19.3    -      -       -      -
    247A  ILE*     3.9    14.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  GLY      2.8     5.2    +      -       -      +
     98A  ARG*     2.7    16.9    +      -       -      +
    100A  GLY*     1.3    73.9    -      -       -      +
    102A  TRP*     1.3    65.7    +      -       -      +
    104A  GLY*     3.4     3.0    +      -       -      +
    105A  LEU*     3.2    18.9    +      -       -      +
    154A  ARG*     3.5    41.5    -      -       +      +
    157A  HIS*     2.9    34.5    +      -       +      +
    217A  LEU*     3.7    24.5    -      -       +      -
    218A  TRP*     4.7    19.1    -      -       +      -
    230A  PHE*     3.2    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  ARG      2.8    11.0    +      -       -      +
     99A  GLN*     3.1    12.8    -      -       -      +
    101A  ILE*     1.3    75.8    -      -       -      +
    103A  PHE*     1.3    68.6    +      -       -      +
    105A  LEU*     2.8    27.8    +      -       +      +
    106A  ILE*     3.2    20.1    -      -       +      +
    230A  PHE*     3.6    16.6    -      +       +      -
    232A  LEU*     5.4    10.1    -      -       +      +
    233A  THR*     2.8    42.7    +      -       -      +
    234A  ALA*     3.2    33.0    -      -       -      -
    235A  LYS*     3.3    28.5    -      -       +      -
    244A  PHE*     3.7    21.1    -      +       -      -
----------------------------------------------------------
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Residues in contact with PHE 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  ILE*     4.2     9.9    -      -       +      -
     74A  MET*     3.4     9.4    -      -       +      -
     77A  LEU*     5.7     0.2    -      -       +      -
     99A  GLN      2.8    15.4    +      -       -      +
    100A  GLY*     3.0    15.3    -      -       -      +
    102A  TRP*     1.3    74.4    -      -       -      +
    104A  GLY*     1.4    50.4    +      -       -      +
    105A  LEU      2.8    11.4    +      -       -      -
    106A  ILE*     3.0    26.9    -      -       +      +
    107A  LEU*     3.0    51.2    +      -       +      +
    244A  PHE*     3.4    41.3    -      +       +      -
    247A  ILE*     3.6    42.8    -      -       +      -
    248A  TRP*     5.1    15.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  MET*     3.1    19.4    -      -       -      +
    100A  GLY      2.2    25.1    +      -       -      -
    101A  ILE*     3.4     7.9    -      -       -      -
    102A  TRP      3.1     0.2    -      -       -      -
    103A  PHE*     1.4    64.4    -      -       -      +
    105A  LEU*     1.3    57.9    +      -       -      +
    108A  GLY      4.5     0.2    -      -       -      -
    150A  ALA      3.1     6.1    -      -       -      +
    153A  HIS*     2.6    27.3    -      -       -      +
    154A  ARG*     3.1    20.7    +      -       -      -
    157A  HIS*     4.9     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  ILE      3.2    10.7    +      -       -      +
    102A  TRP*     2.8    15.7    +      -       +      +
    103A  PHE      2.8     3.0    +      -       -      -
    104A  GLY*     1.3    69.1    -      -       -      +
    106A  ILE*     1.3    58.4    +      -       +      +
    107A  LEU      2.5    20.0    +      -       -      -
    108A  GLY*     2.5    17.8    +      -       -      -
    109A  ILE*     2.9    25.9    +      -       +      -
    150A  ALA*     3.5    23.3    -      -       +      +
    151A  MET*     4.8     3.8    -      -       +      +
    154A  ARG*     4.1    27.8    -      -       +      +
    230A  PHE*     4.8    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  TRP*     3.2    30.5    -      -       +      +
    103A  PHE*     3.0    17.7    -      -       +      +
    105A  LEU*     1.3    75.7    -      -       +      +
    107A  LEU*     1.3    78.2    +      -       +      +
    109A  ILE*     3.3    12.5    -      -       -      +
    110A  PHE*     2.8    29.6    +      -       -      +
    235A  LYS*     5.5     8.1    -      -       +      +
    244A  PHE*     3.1    40.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  PHE*     3.8    27.9    -      -       +      -
     73A  ILE*     3.7    17.5    -      -       +      -
     74A  MET*     3.1    29.2    -      -       +      -
    103A  PHE*     3.0    50.1    +      -       +      +
    105A  LEU      2.5     4.0    +      -       -      -
    106A  ILE*     1.3    76.3    -      -       +      +
    108A  GLY*     1.3    55.6    +      -       -      +
    110A  PHE*     2.7    11.3    +      -       +      +
    111A  GLY*     2.5    35.5    +      -       -      -
    153A  HIS*     4.3     6.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  GLY      3.9     3.2    +      -       -      -
    105A  LEU      2.5    11.9    +      -       -      -
    107A  LEU*     1.3    74.3    -      -       -      +
    109A  ILE*     1.3    55.4    +      -       -      -
    111A  GLY*     4.6     0.9    -      -       -      -
    112A  MET*     2.9    24.9    +      -       -      +
    149A  ALA*     2.9    21.8    -      -       -      -
    150A  ALA*     3.0    21.7    +      -       -      -
    153A  HIS*     3.6    17.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  LEU*     2.9    50.0    +      -       +      -
    106A  ILE*     3.3    13.5    -      -       -      +
    108A  GLY*     1.3    73.6    -      -       -      +
    110A  PHE*     1.3    58.1    +      -       +      +
    112A  MET*     3.5     8.6    -      -       +      +
    113A  ILE*     2.7    53.5    +      -       +      +
    150A  ALA*     3.5    18.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  PHE*     4.3    20.6    -      +       -      -
    106A  ILE*     2.8    17.3    +      -       +      +
    107A  LEU*     2.7    13.8    +      -       +      +
    109A  ILE*     1.3    75.7    -      -       +      +
    111A  GLY*     1.3    60.5    +      -       -      +
    113A  ILE*     3.5    21.4    -      -       +      +
    114A  LEU*     3.4    23.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  VAL*     4.9     8.7    -      -       -      -
     70A  PHE*     3.9    27.6    -      -       -      -
    107A  LEU      2.5    19.1    +      -       -      -
    108A  GLY*     4.1     0.9    -      -       -      -
    110A  PHE*     1.3    69.0    -      -       -      +
    112A  MET*     1.3    51.7    +      -       -      +
    113A  ILE      2.5     4.3    +      -       -      -
    114A  LEU*     2.5    33.9    +      -       -      +
    115A  MET*     3.2     8.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 112 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  VAL*     5.1     0.8    -      -       -      +
    108A  GLY      2.9    10.6    +      -       -      +
    109A  ILE*     3.5    15.7    -      -       +      +
    111A  GLY*     1.3    68.4    -      -       -      -
    113A  ILE*     1.3    68.4    +      -       +      +
    115A  MET*     3.3    10.9    -      -       -      +
    116A  TRP*     2.4    52.0    +      -       +      +
    146A  ALA      2.9    20.6    -      -       -      +
    147A  MET*     3.5    22.6    -      -       -      +
    149A  ALA*     3.0    32.8    -      -       +      +
    150A  ALA*     3.9    25.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 113 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  ILE*     2.7    33.8    +      -       +      +
    110A  PHE*     3.5    26.7    -      -       +      +
    111A  GLY      2.5     8.5    +      -       -      -
    112A  MET*     1.3    83.0    -      -       +      +
    114A  LEU*     1.3    59.8    +      -       -      +
    116A  TRP*     3.2    27.9    -      -       +      +
    117A  ALA*     2.6    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 114 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  VAL*     3.7    28.0    -      -       +      -
     70A  PHE*     6.2     5.8    -      -       +      -
    110A  PHE*     3.4    19.6    +      -       +      +
    111A  GLY*     2.5    16.8    +      -       -      +
    113A  ILE*     1.3    73.8    -      -       -      +
    115A  MET*     1.3    72.0    +      -       +      +
    117A  ALA*     3.1     1.2    -      -       -      -
    118A  ALA*     2.6    42.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 115 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  GLY      5.9     0.9    -      -       -      +
     62A  ALA      5.1     6.5    -      -       -      +
     63A  PHE*     3.3    44.0    -      -       +      -
     66A  VAL*     3.5    24.9    -      -       +      -
    111A  GLY      3.2     1.4    +      -       -      -
    112A  MET*     3.3    13.9    -      -       -      +
    114A  LEU*     1.3    81.7    -      -       +      +
    116A  TRP*     1.3    57.2    +      -       -      +
    117A  ALA      2.5    25.6    +      -       -      +
    119A  ILE*     3.0    38.1    -      -       +      +
    142A  PHE*     3.7    18.2    -      -       +      +
    145A  LEU*     4.5     1.6    -      -       +      +
    146A  ALA*     3.1    34.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 116 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  MET*     2.4    37.6    +      -       +      +
    113A  ILE*     3.2    44.6    -      -       +      -
    115A  MET*     1.3    69.6    -      -       -      +
    117A  ALA*     1.3    72.1    +      -       +      +
    119A  ILE*     4.6     5.5    -      -       -      +
    143A  THR*     5.1     6.7    -      -       -      -
    147A  MET*     3.6    33.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 117 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  ILE*     2.6    20.3    +      -       +      +
    114A  LEU*     3.8     1.3    -      -       -      +
    115A  MET      2.5     9.9    +      -       -      +
    116A  TRP*     1.3    85.7    -      -       +      +
    118A  ALA*     1.3    56.6    +      -       -      +
    119A  ILE*     2.6    23.2    +      -       -      +
    120A  THR*     3.4    11.4    +      -       -      -
----------------------------------------------------------
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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