Contacts of the helix formed by residues 129 - 151 (chain E) in PDB entry 6NR8


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 HIS 129 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127E  GLY      3.5     4.8    +      -       -      +
    128E  ILE*     1.3    74.9    -      -       -      +
    130E  PRO*     1.3    78.5    -      -       +      +
    131E  ILE*     3.2    43.7    +      -       +      +
    132E  ARG*     3.3    43.2    -      -       +      +
    133E  ILE*     3.4     8.5    -      -       -      +
    451G  ASP*     3.6    33.4    +      -       +      +
    452G  ASN*     4.8     1.8    -      -       -      -
    474L  ILE*     4.2    31.5    -      -       +      +
    478L  THR*     5.4     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 130 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30E  GLY*     6.3     1.3    -      -       -      -
     34E  LEU*     5.1     4.3    -      -       +      -
    124E  LEU*     3.8    32.3    -      -       +      -
    128E  ILE      4.1     0.7    -      -       -      +
    129E  HIS*     1.3   101.4    -      -       +      +
    131E  ILE*     1.3    66.6    +      -       +      +
    133E  ILE*     3.3    24.6    -      -       +      +
    134E  ALA*     3.4     4.5    +      -       -      +
    528E  LEU*     3.3    24.0    -      -       +      +
     44G  GLY      6.2     0.2    -      -       -      -
     45G  MET*     4.4    19.3    -      -       +      -
    474L  ILE*     6.0     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 131 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129E  HIS*     3.1    28.6    -      -       +      +
    130E  PRO*     1.3    80.6    -      -       +      +
    132E  ARG*     1.3    54.0    +      -       -      +
    133E  ILE      3.2     2.2    -      -       -      -
    134E  ALA*     3.0     4.2    +      -       -      +
    135E  ASP*     2.8    41.9    +      -       -      +
    528E  LEU*     3.8    14.8    -      -       +      -
     38G  THR*     6.2     0.2    -      -       +      -
     43G  ARG*     3.6    27.4    -      -       +      -
     44G  GLY*     3.4    35.9    -      -       -      +
    452G  ASN*     3.3    41.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 132 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128E  ILE*     3.7    23.6    -      -       +      -
    129E  HIS*     3.3    36.1    +      -       +      +
    131E  ILE*     1.3    77.7    -      -       -      +
    133E  ILE*     1.3    61.4    +      -       +      +
    135E  ASP*     3.6    14.2    -      -       -      +
    136E  GLY*     3.2    18.5    +      -       -      -
    443E  LEU*     3.4    44.2    -      -       +      +
    444E  GLU*     4.7     8.1    +      -       -      +
    447E  ALA*     4.5     1.6    -      -       -      +
    451G  ASP*     4.3     7.6    +      -       -      +
    452G  ASN      4.4     4.9    +      -       -      +
    453G  ALA      5.2     1.8    -      -       -      +
    454G  GLY*     3.3    35.2    -      -       -      -
    455G  PHE      3.9    10.9    +      -       -      +
    474L  ILE      5.8     1.4    +      -       -      -
    475L  SER*     5.2     8.7    +      -       -      +
    478L  THR*     4.4    14.4    -      -       -      +
    479L  GLU*     3.5    10.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 133 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120E  ALA*     3.8    38.8    -      -       +      +
    123E  LEU*     3.8    21.8    -      -       +      -
    128E  ILE*     3.7    26.9    -      -       +      +
    129E  HIS      3.4    11.9    -      -       -      +
    130E  PRO*     3.3    22.2    -      -       +      +
    132E  ARG*     1.3    79.4    -      -       +      +
    134E  ALA*     1.3    55.9    +      -       +      +
    135E  ASP      3.2     0.2    -      -       -      -
    136E  GLY      3.4     0.3    -      -       -      -
    137E  TYR*     2.6    57.5    +      -       +      +
    443E  LEU      5.6     1.8    -      -       -      +
    446E  TYR*     4.7     1.1    -      -       +      -
    447E  ALA*     3.7    18.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 134 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130E  PRO      3.4    15.9    -      -       -      +
    131E  ILE*     3.0     5.5    +      -       -      +
    133E  ILE*     1.3    78.7    -      -       +      +
    135E  ASP*     1.3    64.9    +      -       -      +
    137E  TYR*     3.8    17.9    +      -       +      +
    138E  GLU*     3.7    14.0    +      -       -      +
    524E  VAL*     5.1     3.6    -      -       +      +
    525E  ARG*     5.6     1.5    -      -       -      +
    528E  LEU*     3.7    20.0    -      -       +      -
     43G  ARG*     3.4    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 135 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131E  ILE*     2.8    22.6    +      -       -      +
    132E  ARG*     3.6    11.4    -      -       -      +
    134E  ALA*     1.3    77.4    -      -       -      +
    136E  GLY*     1.3    60.8    +      -       -      +
    137E  TYR      3.6     0.2    +      -       -      -
    138E  GLU*     3.6    11.4    +      -       -      +
    139E  GLN*     3.8     9.0    +      -       -      +
    444E  GLU*     5.0     0.6    -      -       -      +
     43G  ARG*     3.4    25.1    +      -       -      +
    452G  ASN      3.0    25.3    -      -       -      +
    453G  ALA*     4.6     5.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 136 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132E  ARG      3.2     5.0    +      -       -      -
    133E  ILE      3.0     7.5    +      -       -      -
    135E  ASP*     1.3    75.2    -      -       -      +
    137E  TYR*     1.3    55.6    +      -       -      +
    138E  GLU      3.2     2.0    -      -       -      -
    139E  GLN*     3.7     2.1    -      -       -      +
    140E  ALA*     2.8    35.0    +      -       -      +
    444E  GLU*     3.6    32.1    -      -       -      +
    447E  ALA*     3.7    11.1    -      -       -      +
    448E  MET*     4.5     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 137 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116E  LEU*     3.6    29.0    +      -       +      -
    120E  ALA*     3.3    29.5    -      -       +      +
    123E  LEU*     4.0     1.4    -      -       -      +
    133E  ILE*     2.6    45.2    +      -       +      +
    134E  ALA*     3.8    10.8    -      -       +      +
    135E  ASP      3.4     0.4    -      -       -      -
    136E  GLY*     1.3    72.2    -      -       -      +
    138E  GLU*     1.3    60.1    +      -       -      +
    140E  ALA*     3.5     4.9    +      -       -      +
    141E  ALA*     2.9    22.3    +      -       -      +
    447E  ALA*     3.3    37.7    -      -       +      -
    450E  ALA*     3.5    21.3    -      -       +      +
    451E  PHE*     4.6     4.0    -      -       +      -
    521E  THR*     3.4    18.7    +      -       -      +
    524E  VAL*     3.5    33.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 138 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134E  ALA      3.7    16.3    -      -       -      +
    135E  ASP      3.6     7.2    +      -       -      +
    136E  GLY      3.2     0.6    -      -       -      -
    137E  TYR*     1.3    78.7    -      -       -      +
    139E  GLN*     1.3    58.4    +      -       -      +
    141E  ALA*     3.1     7.1    +      -       -      +
    142E  ARG*     3.0    38.6    +      -       -      +
    521E  THR*     2.9    32.1    +      -       -      +
    525E  ARG*     3.0    44.5    +      -       -      +
     43G  ARG*     4.4    10.5    -      -       -      +
    384G  GLU*     3.5    14.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 139 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135E  ASP      3.8     6.1    +      -       -      +
    136E  GLY      3.3     5.1    +      -       -      +
    138E  GLU*     1.3    74.1    -      -       -      +
    140E  ALA*     1.3    65.5    +      -       -      +
    142E  ARG*     3.1    32.4    +      -       -      +
    143E  VAL*     3.3    20.3    +      -       -      +
    444E  GLU*     3.3    31.6    -      -       -      +
    448E  MET*     3.7    12.8    -      -       +      -
    167G  LEU*     5.0    15.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 140 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136E  GLY      2.8    17.9    +      -       -      +
    137E  TYR*     3.6     7.2    -      -       -      +
    139E  GLN*     1.3    77.1    -      -       -      +
    141E  ALA*     1.3    60.7    +      -       -      +
    143E  VAL*     3.4    21.1    -      -       -      +
    144E  ALA      3.5     5.7    +      -       -      -
    433E  VAL*     4.0     0.9    -      -       +      -
    447E  ALA      4.4     0.2    -      -       -      +
    448E  MET*     3.7    21.7    -      -       +      +
    451E  PHE*     3.5    44.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 141 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137E  TYR      2.9    14.7    +      -       -      +
    138E  GLU*     3.1    12.5    +      -       -      +
    140E  ALA*     1.3    76.0    -      -       -      +
    142E  ARG*     1.3    64.1    +      -       -      +
    144E  ALA      3.6     0.2    +      -       -      -
    145E  ILE*     3.2    32.2    +      -       +      +
    451E  PHE*     4.1     6.0    -      -       +      -
    517E  ILE*     3.7    18.5    -      -       +      +
    521E  THR*     3.8    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 142 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138E  GLU*     3.0    26.4    +      -       -      +
    139E  GLN*     3.1    32.7    +      -       -      +
    141E  ALA*     1.3    79.0    -      -       -      +
    143E  VAL*     1.3    58.2    +      -       +      +
    145E  ILE*     3.3    11.2    +      -       -      +
    146E  GLU*     2.8    28.3    +      -       -      +
    166G  LYS*     5.9     0.4    -      -       -      +
    167G  LEU*     4.0    37.9    +      -       -      +
    381G  PHE*     3.9    19.8    -      -       -      -
    384G  GLU*     3.7    24.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 143 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139E  GLN*     3.6    22.4    -      -       -      +
    140E  ALA*     3.4    20.6    -      -       -      +
    142E  ARG*     1.3    74.8    -      -       +      +
    144E  ALA*     1.3    59.8    +      -       -      +
    146E  GLU*     3.4    23.5    -      -       -      +
    147E  HIS*     3.0    24.6    +      -       -      +
    150E  LYS*     5.5     0.2    +      -       -      -
    432E  ALA*     5.2     3.5    -      -       -      +
    433E  VAL*     3.8    18.1    -      -       +      +
    436E  GLU*     3.8    42.8    -      -       +      +
    440E  CYS*     6.1     1.3    -      -       -      -
    448E  MET*     4.7     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 144 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140E  ALA      3.5     3.7    +      -       -      +
    141E  ALA      3.9     4.3    -      -       -      +
    142E  ARG      3.2     0.8    -      -       -      -
    143E  VAL*     1.3    80.0    -      -       -      +
    145E  ILE*     1.3    60.4    +      -       -      +
    147E  HIS*     2.9    21.4    +      -       -      +
    148E  LEU*     3.1    21.0    +      -       -      +
    429E  CYS*     3.9    11.4    -      -       +      -
    433E  VAL*     4.1     9.2    -      -       +      -
    451E  PHE*     3.7    32.5    -      -       +      -
    455E  LEU*     6.1     0.4    -      -       +      -
    517E  ILE*     4.1    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 145 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141E  ALA*     3.2    22.7    +      -       +      +
    142E  ARG*     3.7     9.9    -      -       -      +
    144E  ALA*     1.3    74.7    -      -       -      +
    146E  GLU*     1.3    61.7    +      -       -      +
    148E  LEU*     3.3    14.3    +      -       -      +
    149E  ASP*     3.5    19.2    +      -       -      +
    514E  LYS*     3.7    38.1    -      -       +      +
    517E  ILE*     3.7    30.7    -      -       +      -
    518E  SER*     5.0     9.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 146 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142E  ARG      2.8    17.0    +      -       -      +
    143E  VAL*     3.4    29.2    -      -       -      +
    144E  ALA      3.2     0.2    -      -       -      -
    145E  ILE*     1.3    76.5    -      -       -      +
    147E  HIS*     1.3    59.5    +      -       -      +
    149E  ASP*     3.5    22.8    +      -       -      +
    150E  LYS*     2.9    25.3    +      -       -      +
    436E  GLU*     5.3     5.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 147 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143E  VAL      3.0    12.5    +      -       -      +
    144E  ALA*     2.9    11.4    +      -       -      +
    146E  GLU*     1.3    74.2    -      -       -      +
    148E  LEU*     1.3    60.7    +      -       -      +
    149E  ASP      3.1     0.4    -      -       -      -
    150E  LYS*     2.9    42.3    +      -       -      +
    151E  ILE*     3.0    18.0    +      -       +      +
    428E  SER*     3.0    42.0    +      -       -      -
    429E  CYS*     3.3    20.2    -      -       -      -
    431E  LEU*     6.0     1.8    -      -       +      -
    432E  ALA*     3.4    24.3    -      -       +      +
    486E  ASN*     3.6    14.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 148 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144E  ALA      3.1    24.0    +      -       -      +
    145E  ILE*     3.3    10.5    +      -       +      +
    147E  HIS*     1.3    76.2    -      -       -      +
    149E  ASP*     1.3    59.3    +      -       -      +
    151E  ILE*     2.9    34.3    -      -       +      +
    417E  ARG*     3.7     0.9    +      -       -      -
    419E  VAL*     4.9     3.6    -      -       +      -
    425E  ALA*     5.6     2.9    -      -       +      -
    429E  CYS*     3.7    20.0    -      -       -      -
    510E  LEU*     3.3    41.4    -      -       +      +
    513E  LYS*     3.8    18.4    -      -       +      -
    514E  LYS*     3.6    37.2    -      -       +      +
    517E  ILE*     3.8    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 149 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145E  ILE*     3.6    19.6    -      -       -      +
    146E  GLU*     3.6    15.1    -      -       -      +
    147E  HIS      3.1     0.8    -      -       -      -
    148E  LEU*     1.3    78.4    -      -       -      +
    150E  LYS*     1.3    62.7    +      -       +      +
    151E  ILE      4.3     1.9    -      -       -      +
    153E  ASP*     6.2     0.3    -      -       -      -
    154E  SER*     5.6     0.5    +      -       -      -
    417E  ARG*     3.2    28.5    +      -       -      +
    510E  LEU*     4.7     2.9    -      -       -      +
    514E  LYS*     5.4     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 150 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146E  GLU*     2.9    42.7    +      -       -      +
    147E  HIS*     2.9    31.0    +      -       -      +
    149E  ASP*     1.3    77.9    -      -       +      +
    151E  ILE*     1.3    63.1    +      -       -      +
    152E  SER      3.6     1.7    +      -       -      -
    153E  ASP*     5.1     1.7    +      -       -      -
    486E  ASN*     3.7    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 151 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147E  HIS*     3.0    43.6    +      -       +      +
    148E  LEU*     2.9    27.0    +      -       +      +
    149E  ASP      4.3     2.1    -      -       -      +
    150E  LYS*     1.3    78.5    -      -       -      +
    152E  SER*     1.3    82.0    +      -       -      +
    153E  ASP*     5.0     0.2    -      -       -      -
    154E  SER*     5.3     0.2    +      -       -      -
    417E  ARG*     5.2     0.9    +      -       -      -
    419E  VAL*     4.4    15.5    -      -       +      -
    420E  TYR      5.2     1.3    -      -       -      +
    425E  ALA*     4.5    12.6    -      -       +      -
    428E  SER*     3.9    11.9    -      -       -      +
    429E  CYS*     3.7    15.9    -      -       -      -
    486E  ASN*     3.3    26.5    -      -       +      +
    487E  PRO*     5.1    11.7    -      -       +      +
    510E  LEU*     3.8     4.0    -      -       +      +
----------------------------------------------------------
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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