Contacts of the helix formed by residues 133 - 159 (chain G) in PDB entry 3V5I


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 133 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131G  GLY      3.8     1.0    +      -       -      -
    132G  GLN*     1.3    70.4    -      -       -      +
    134G  THR*     1.3    58.2    +      -       -      +
    136G  ILE*     3.3    11.9    +      -       -      +
    137G  GLU*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 134 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ARG*     3.5    44.9    +      -       +      +
    132G  GLN*     3.2     4.6    -      -       -      +
    133G  ALA*     1.3    76.9    -      -       -      +
    135G  GLU*     1.3    56.5    +      -       -      +
    137G  GLU*     3.4    15.9    +      -       -      +
    138G  ILE*     3.1    36.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 135 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ARG*     3.6    31.2    +      -       -      +
    129G  ALA*     5.4     0.4    -      -       -      -
    130G  GLN      4.1    11.7    -      -       -      +
    131G  GLY*     3.5     8.1    -      -       -      -
    132G  GLN*     2.8    40.9    +      -       +      +
    134G  THR*     1.3    73.7    -      -       -      +
    136G  ILE*     1.3    64.9    +      -       -      +
    138G  ILE*     3.3    10.4    +      -       +      +
    139G  ALA*     3.2    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 136 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129G  ALA*     4.1    32.9    -      -       +      +
    130G  GLN      4.5     0.9    -      -       -      -
    131G  GLY      3.4    30.5    -      -       -      +
    132G  GLN      2.9    12.6    +      -       -      +
    133G  ALA*     3.7    11.2    -      -       -      +
    135G  GLU*     1.3    75.4    -      -       -      +
    137G  GLU*     1.3    59.6    +      -       -      +
    139G  ALA*     3.2     2.9    +      -       -      +
    140G  ALA*     2.8    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 137 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133G  ALA      3.0    13.6    +      -       -      +
    134G  THR*     3.4    17.7    +      -       -      +
    136G  ILE*     1.3    77.4    -      -       -      +
    138G  ILE*     1.3    63.6    +      -       +      +
    140G  ALA*     3.3     6.4    +      -       +      +
    141G  ASN*     2.9    45.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 138 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ARG*     3.6    35.9    -      -       +      -
    172A  ASP*     3.5    35.9    -      -       +      +
    174A  PHE*     4.3    13.2    -      -       +      -
    134G  THR*     3.1    26.4    +      -       +      +
    135G  GLU*     3.7     9.0    -      -       +      +
    136G  ILE      3.3     0.4    -      -       -      -
    137G  GLU*     1.3    76.7    -      -       +      +
    139G  ALA*     1.3    58.5    +      -       -      +
    141G  ASN*     3.4     8.8    +      -       -      +
    142G  HIS*     3.0    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 139 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  PHE*     5.5     2.2    -      -       -      -
    128G  GLY      4.4     7.4    -      -       -      +
    129G  ALA*     3.6    30.5    -      -       +      -
    135G  GLU      3.2    11.5    +      -       -      +
    136G  ILE      3.7     2.0    -      -       -      +
    138G  ILE*     1.3    76.4    -      -       -      +
    140G  ALA*     1.3    64.7    +      -       -      +
    142G  HIS*     3.3     7.5    +      -       -      +
    143G  ILE*     3.0    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 140 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129G  ALA*     5.4     0.6    -      -       -      +
    136G  ILE*     2.8    22.3    +      -       +      +
    137G  GLU*     3.3     7.6    +      -       -      +
    139G  ALA*     1.3    75.0    -      -       -      +
    141G  ASN*     1.3    64.2    +      -       -      +
    143G  ILE*     3.3    10.3    -      -       -      +
    144G  LEU*     3.0    37.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 141 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137G  GLU*     2.9    38.2    +      -       -      +
    138G  ILE*     3.6     8.7    -      -       -      +
    140G  ALA*     1.3    76.7    -      -       -      +
    142G  HIS*     1.3    56.6    +      -       -      +
    144G  LEU*     3.3    12.0    +      -       -      +
    145G  LYS*     2.9    31.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 142 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  MET*     4.5     4.0    -      -       +      -
    119A  GLU*     3.0    33.9    +      -       -      -
    174A  PHE*     3.4    60.0    -      +       +      -
     72G  THR*     6.0     1.8    -      -       +      -
    138G  ILE      3.0    17.5    +      -       -      +
    139G  ALA*     3.7     7.0    +      -       -      +
    140G  ALA      3.3     0.2    -      -       -      -
    141G  ASN*     1.3    77.5    -      -       -      +
    143G  ILE*     1.3    58.8    +      -       -      +
    145G  LYS*     3.4     7.2    +      -       +      +
    146G  THR*     3.0    40.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 143 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125G  PRO*     4.1    24.0    -      -       +      +
    126G  LEU*     3.8     9.0    -      -       -      +
    127G  GLY*     3.7    33.7    -      -       -      +
    128G  GLY      5.2     0.2    -      -       -      +
    139G  ALA      3.0    16.2    +      -       -      +
    140G  ALA*     3.3    16.4    -      -       -      +
    142G  HIS*     1.3    77.5    -      -       -      +
    144G  LEU*     1.3    74.1    +      -       +      +
    146G  THR*     3.4     8.1    +      -       -      -
    147G  ARG*     3.0    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 144 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124G  GLN*     6.4     0.2    -      -       -      +
    140G  ALA*     3.0    31.1    +      -       +      +
    141G  ASN*     3.8    12.1    -      -       -      +
    143G  ILE*     1.3    81.6    -      -       +      +
    145G  LYS*     1.3    63.9    +      -       -      +
    147G  ARG*     3.1    16.5    +      -       +      +
    148G  GLU*     3.1    29.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 145 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  PHE      5.6     2.0    +      -       -      -
    176A  THR*     3.8    22.8    -      -       +      +
    179A  GLU*     3.7    22.8    +      -       -      -
    141G  ASN      2.9    17.9    +      -       -      +
    142G  HIS*     3.7     9.2    -      -       +      +
    144G  LEU*     1.3    75.1    -      -       -      +
    146G  THR*     1.3    63.6    +      -       -      +
    148G  GLU*     3.2    21.0    +      -       -      +
    149G  LYS*     3.0    21.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 146 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  GLU*     3.5    21.6    +      -       -      +
     71G  VAL*     3.7    33.2    -      -       +      -
     75G  PHE*     5.2     3.4    -      -       +      -
    125G  PRO*     5.0     5.4    -      -       +      -
    142G  HIS*     3.0    29.8    +      -       -      -
    143G  ILE*     3.7    10.5    -      -       +      -
    145G  LYS*     1.3    75.6    -      -       -      +
    147G  ARG*     1.3    57.2    +      -       -      +
    149G  LYS*     3.3     8.5    +      -       -      +
    150G  LEU*     2.9    35.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 147 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124G  GLN*     3.4    38.4    +      -       -      +
    125G  PRO*     3.7    22.0    -      -       +      +
    143G  ILE      3.0    13.9    +      -       -      +
    144G  LEU*     3.1    19.3    +      -       +      +
    146G  THR*     1.3    77.1    -      -       -      +
    148G  GLU*     1.3    57.0    +      -       -      +
    150G  LEU*     3.3     4.0    +      -       +      +
    151G  ASN*     2.9    40.3    +      -       -      +
    166G  GLN*     3.1    52.8    +      -       -      +
    169G  THR*     3.1    38.0    +      -       -      -
    170G  ASP*     3.7     9.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 148 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144G  LEU*     3.1    19.0    +      -       -      +
    145G  LYS*     3.2    20.2    +      -       +      +
    147G  ARG*     1.3    77.0    -      -       -      +
    149G  LYS*     1.3    57.8    +      -       -      +
    151G  ASN*     3.3     6.4    +      -       -      +
    152G  ARG*     2.8    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 149 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ASN*     2.8    45.2    +      -       -      +
    118A  ALA      4.6     0.6    +      -       -      -
    119A  GLU*     3.3    33.9    +      -       -      +
    176A  THR*     6.2     3.6    -      -       +      +
     75G  PHE*     3.5    35.2    -      -       +      -
    145G  LYS      3.0    13.2    +      -       -      +
    146G  THR*     3.5    13.2    -      -       -      +
    148G  GLU*     1.3    75.7    -      -       -      +
    150G  LEU*     1.3    64.1    +      -       -      +
    152G  ARG*     3.7    27.5    -      -       -      +
    153G  ILE*     3.1    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 150 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71G  VAL*     4.3     4.9    -      -       +      -
     75G  PHE*     3.6    28.3    -      -       +      -
     99G  MET*     3.8    32.3    -      -       +      -
    102G  PHE*     3.7    26.9    -      -       +      -
    125G  PRO*     4.1    27.6    -      -       +      -
    146G  THR*     2.9    30.1    +      -       +      +
    147G  ARG*     3.7     4.5    -      -       +      +
    148G  GLU      3.2     0.2    -      -       -      -
    149G  LYS*     1.3    76.3    -      -       -      +
    151G  ASN*     1.3    60.9    +      -       -      +
    153G  ILE*     3.2     2.3    +      -       -      -
    154G  LEU*     2.9    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 151 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147G  ARG*     2.9    33.1    +      -       -      +
    148G  GLU*     3.7     5.9    -      -       -      +
    150G  LEU*     1.3    78.5    -      -       -      +
    152G  ARG*     1.3    57.2    +      -       -      +
    154G  LEU*     3.4     3.5    +      -       -      +
    155G  SER*     2.9    30.0    +      -       -      -
    162G  ILE*     4.3    16.6    +      -       +      +
    165G  ILE*     3.4    29.9    -      -       +      +
    166G  GLN*     2.9    43.2    +      -       -      +
    169G  THR*     4.2     7.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 152 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ASN*     3.8    24.2    -      -       -      +
    148G  GLU*     2.8    20.3    +      -       -      +
    149G  LYS*     3.7    36.5    -      -       -      +
    151G  ASN*     1.3    76.1    -      -       -      +
    153G  ILE*     1.3    69.6    +      -       -      +
    155G  SER*     3.2     5.4    +      -       -      -
    156G  GLU*     3.2    40.8    +      -       +      +
    162G  ILE*     4.2    23.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 153 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ASN*     3.4    39.5    -      -       -      +
     75G  PHE*     3.7    18.6    -      -       +      -
     78G  TYR*     3.2    33.7    -      -       +      +
    102G  PHE*     3.7    13.2    -      -       +      -
    149G  LYS*     3.1    19.5    +      -       +      +
    150G  LEU      4.0     2.2    -      -       -      +
    152G  ARG*     1.3    87.1    -      -       -      +
    154G  LEU*     1.3    62.4    +      -       -      +
    156G  GLU*     3.3    18.9    +      -       -      +
    157G  ARG*     3.1    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 154 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101G  SER*     6.1     0.2    -      -       -      +
    102G  PHE*     3.9    27.7    -      -       +      -
    105G  ALA*     4.2    14.8    -      -       +      -
    122G  ILE*     5.1    13.9    -      -       +      -
    150G  LEU*     2.9    19.6    +      -       +      +
    151G  ASN*     3.6     6.5    -      -       -      +
    153G  ILE*     1.3    75.9    -      -       -      +
    155G  SER*     1.3    65.2    +      -       -      +
    157G  ARG*     3.0     5.1    +      -       +      +
    158G  THR*     2.9    35.5    +      -       +      +
    165G  ILE*     4.0    29.6    -      -       +      -
    169G  THR*     5.3     6.1    -      -       +      -
    183G  TYR*     5.8     0.9    -      -       +      -
    185G  LEU*     4.1    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 155 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151G  ASN      2.9    14.1    +      -       -      -
    152G  ARG      3.3    10.8    -      -       -      -
    154G  LEU*     1.3    75.3    -      -       -      +
    156G  GLU*     1.3    55.7    +      -       -      +
    158G  THR*     3.9     2.5    -      -       -      -
    159G  GLY*     2.8    34.1    +      -       -      -
    160G  GLN      2.5    26.1    +      -       -      -
    161G  SER*     3.8     1.4    -      -       -      -
    162G  ILE*     3.4    27.5    +      -       -      +
    165G  ILE*     4.5     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 156 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78G  TYR*     5.2     1.4    +      -       -      -
    109G  LYS*     3.7    11.1    +      -       -      -
    152G  ARG*     3.2    34.7    +      -       +      +
    153G  ILE*     3.4    24.9    -      -       -      +
    154G  LEU      3.1     0.2    -      -       -      -
    155G  SER*     1.3    79.1    -      -       -      +
    157G  ARG*     1.3    62.0    +      -       +      +
    158G  THR      3.5     0.4    +      -       -      -
    159G  GLY*     4.2     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 157 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78G  TYR*     3.2    28.9    +      -       -      -
     82G  GLN*     3.5    32.8    -      -       -      +
    102G  PHE*     5.8     1.3    -      -       -      -
    105G  ALA*     3.6    36.8    +      -       +      +
    106G  ALA*     4.1     8.7    +      -       -      +
    107G  GLY      3.8    14.6    +      -       -      -
    108G  ALA*     5.7     0.4    -      -       -      +
    109G  LYS*     3.7    36.6    +      -       -      +
    112G  ARG*     3.1    24.1    +      -       -      +
    153G  ILE*     3.1    19.5    -      -       +      +
    154G  LEU*     3.0     6.3    +      -       +      +
    156G  GLU*     1.3    84.3    +      -       +      +
    158G  THR*     1.3    61.9    +      -       +      +
    159G  GLY      3.6     0.2    -      -       -      -
    184G  GLY      3.4     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 158 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105G  ALA*     5.0     2.2    -      -       +      -
    154G  LEU*     2.9    32.1    +      -       +      +
    155G  SER*     3.6     0.5    +      -       -      -
    157G  ARG*     1.3    78.4    -      -       -      +
    159G  GLY*     1.3    63.3    +      -       -      +
    160G  GLN*     3.2    21.6    +      -       -      +
    165G  ILE*     4.0     2.3    -      -       -      +
    183G  TYR*     3.6    27.2    -      -       +      +
    184G  GLY*     3.4    30.1    -      -       -      +
    185G  LEU*     3.9    24.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 159 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155G  SER      2.8    12.9    +      -       -      -
    156G  GLU      4.2     3.6    +      -       -      -
    157G  ARG      3.6     1.4    -      -       -      -
    158G  THR*     1.3    77.6    -      -       -      +
    160G  GLN*     1.3    62.9    +      -       -      +
    161G  SER      4.1     0.2    +      -       -      -
----------------------------------------------------------
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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