Contacts of the helix formed by residues 135 - 165 (chain F) in PDB entry 5MG3


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 GLY 135 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54F  GLY*     4.3     0.2    -      -       -      -
    100F  PRO*     4.7     0.2    -      -       -      -
    133F  PHE*     4.4    15.7    -      -       -      -
    134F  VAL*     1.4    76.6    -      -       -      +
    136F  PRO*     1.3    70.7    -      -       -      +
    137F  SER      3.5     1.8    -      -       -      -
    138F  VAL*     3.3    14.7    +      -       -      +
    139F  GLY*     2.8    27.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 136 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53F  THR*     3.8    17.4    -      -       -      +
    100F  PRO*     4.3    20.4    -      -       +      -
    133F  PHE*     5.8     0.9    -      -       +      -
    135F  GLY*     1.3    86.4    -      -       -      +
    137F  SER*     1.4    60.2    +      -       -      +
    139F  GLY      3.6     0.2    +      -       -      -
    140F  ALA*     3.1    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 137 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136F  PRO*     1.4    80.7    -      -       -      +
    138F  VAL*     1.4    68.7    +      -       -      +
    140F  ALA*     3.2    16.4    +      -       -      +
    141F  ASP*     3.3    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 138 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134F  VAL*     4.5    10.3    -      -       +      -
    135F  GLY*     3.5    15.5    -      -       -      +
    136F  PRO      3.3     0.2    -      -       -      -
    137F  SER*     1.4    81.2    -      -       -      +
    139F  GLY*     1.4    64.5    +      -       -      +
    140F  ALA      3.4     0.3    +      -       -      -
    141F  ASP*     3.5     6.8    +      -       -      +
    142F  LEU*     3.4    29.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 139 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  ASP      3.2    10.0    -      -       -      +
     53F  THR*     3.2    11.1    +      -       -      -
     54F  GLY      3.5    22.2    -      -       -      -
    134F  VAL*     3.6    13.3    -      -       -      +
    135F  GLY      2.8    15.5    +      -       -      -
    138F  VAL*     1.4    71.6    -      -       -      +
    140F  ALA*     1.4    62.8    +      -       -      +
    142F  LEU*     3.2     3.3    +      -       -      -
    143F  ALA      3.1    19.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 140 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53F  THR*     3.9    12.2    -      -       +      +
    136F  PRO      3.1    15.1    +      -       -      +
    137F  SER*     3.3    14.1    -      -       -      +
    138F  VAL      3.2     0.4    -      -       -      -
    139F  GLY*     1.4    72.6    -      -       -      +
    141F  ASP*     1.3    68.9    +      -       -      +
    144F  GLN*     2.8    44.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 141 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    572D  THR*     4.8     3.8    -      -       +      -
    137F  SER      3.3    11.5    +      -       -      +
    138F  VAL*     3.5     7.0    +      -       -      +
    139F  GLY      3.5     0.4    -      -       -      -
    140F  ALA*     1.3    79.0    -      -       -      +
    142F  LEU*     1.3    52.9    +      -       +      +
    144F  GLN*     4.7     5.3    -      -       -      +
    145F  THR*     2.7    45.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 142 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    572D  THR*     3.6    27.5    +      -       +      +
    573D  GLY*     4.6     7.4    -      -       -      +
     51F  ASP*     3.1    39.9    -      -       +      +
    134F  VAL*     4.4    10.1    -      -       +      -
    138F  VAL*     3.4    25.1    -      -       +      +
    139F  GLY*     3.2     7.0    +      -       -      +
    141F  ASP*     1.3    75.0    -      -       +      +
    143F  ALA*     1.4    50.9    +      -       -      +
    145F  THR*     3.1     2.1    +      -       -      -
    146F  GLY*     2.8    31.9    +      -       -      -
    197F  LEU*     3.4    20.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 143 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  ASP      3.6     2.4    +      -       -      -
     52F  PHE*     3.7    29.9    -      -       +      -
     53F  THR*     3.4    31.2    -      -       -      +
    139F  GLY      3.1    13.4    +      -       -      +
    142F  LEU*     1.4    72.2    -      -       -      +
    144F  GLN*     1.4    69.0    +      -       -      +
    146F  GLY*     3.2     0.3    +      -       -      -
    147F  ALA*     2.8    31.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 144 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53F  THR*     4.9     3.6    +      -       -      +
    140F  ALA*     2.8    50.2    +      -       +      +
    141F  ASP*     4.0     5.6    -      -       -      +
    143F  ALA*     1.4    80.6    -      -       -      +
    145F  THR*     1.3    59.8    +      -       +      +
    147F  ALA*     3.3     7.3    +      -       -      +
    148F  MET*     2.8    50.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 145 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    570D  VAL*     3.6    23.9    -      -       +      +
    571D  GLY*     4.8     1.8    -      -       -      -
    572D  THR*     2.6    41.4    +      -       +      +
    141F  ASP*     2.7    23.9    +      -       +      +
    142F  LEU      3.1     1.7    +      -       -      -
    144F  GLN*     1.3    71.2    -      -       +      +
    146F  GLY*     1.3    57.9    +      -       -      +
    148F  MET*     3.2    14.3    +      -       -      +
    149F  ALA*     2.8    34.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 146 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    572D  THR*     4.8     0.2    +      -       -      -
    575D  ILE*     5.7     0.4    -      -       -      -
     52F  PHE*     4.9     1.3    -      -       -      -
    142F  LEU      2.8    20.5    +      -       -      -
    143F  ALA*     3.2     2.9    +      -       -      -
    145F  THR*     1.3    76.5    +      -       -      +
    147F  ALA*     1.4    54.3    +      -       -      +
    149F  ALA*     4.3     4.0    -      -       -      -
    150F  LEU*     3.0    31.0    +      -       -      +
    197F  LEU*     3.5    21.5    -      -       -      +
    200F  VAL*     3.4    16.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 147 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52F  PHE*     4.6    12.4    -      -       +      -
    143F  ALA      2.8    19.5    +      -       -      +
    144F  GLN*     3.6     9.2    -      -       -      +
    146F  GLY*     1.4    68.9    -      -       -      +
    148F  MET*     1.4    63.9    +      -       +      +
    150F  LEU*     3.6     8.9    -      -       -      +
    151F  MET*     3.2    33.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 148 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    570D  VAL*     3.7    21.3    -      -       +      -
    144F  GLN*     2.8    44.9    +      -       +      +
    145F  THR*     3.8     9.2    -      -       -      +
    147F  ALA*     1.4    74.3    -      -       +      +
    149F  ALA*     1.4    54.9    +      -       -      +
    151F  MET*     3.2     4.5    +      -       -      +
    152F  ALA*     2.9    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 149 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    566D  ILE*     4.6     1.9    -      -       -      +
    567D  LEU*     3.5    31.3    -      -       +      +
    570D  VAL*     4.1     9.8    -      -       -      +
    571D  GLY*     3.9    25.6    -      -       -      +
    575D  ILE*     4.9     2.9    -      -       +      -
    145F  THR      2.8    21.2    +      -       -      +
    146F  GLY*     3.6     7.0    -      -       -      +
    148F  MET*     1.4    70.8    -      -       -      +
    150F  LEU*     1.3    65.1    +      -       -      +
    152F  ALA*     4.4     1.8    -      -       -      +
    153F  ALA*     3.4    16.5    +      -       -      +
    200F  VAL*     4.6     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 150 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146F  GLY      3.0    16.1    +      -       -      +
    147F  ALA*     3.6     7.9    -      -       -      +
    149F  ALA*     1.3    83.9    -      -       -      +
    151F  MET*     1.4    84.7    +      -       +      +
    154F  LEU*     3.6     3.8    +      -       -      +
    200F  VAL*     4.0    20.5    -      -       +      +
    203F  LEU*     3.8    45.8    -      -       +      -
    204F  MET*     3.5    41.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 151 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147F  ALA*     3.2    20.8    +      -       +      +
    148F  MET*     3.2     4.9    +      -       -      +
    150F  LEU*     1.4   103.0    -      -       +      +
    152F  ALA*     1.4    63.6    +      -       -      +
    154F  LEU*     3.3    13.0    +      -       -      +
    155F  LEU*     3.1    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 152 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    566D  ILE*     3.5    26.5    -      -       +      +
    570D  VAL*     5.1     9.0    -      -       +      -
    148F  MET      2.9    18.2    +      -       -      +
    149F  ALA*     4.4     1.3    -      -       -      +
    151F  MET*     1.4    71.2    -      -       -      +
    153F  ALA*     1.4    55.4    +      -       -      +
    155F  LEU*     3.4    13.3    +      -       +      +
    156F  SER*     2.7    35.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 153 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    563D  LYS*     3.8    26.2    -      -       +      +
    566D  ILE*     3.6     8.5    -      -       +      +
    567D  LEU*     4.0     8.5    -      -       +      -
    149F  ALA      3.4    15.8    +      -       -      +
    151F  MET      3.4     0.4    -      -       -      -
    152F  ALA*     1.4    77.5    -      -       -      +
    154F  LEU*     1.4    51.8    +      -       -      +
    156F  SER*     3.2     6.7    +      -       -      -
    157F  ILE*     3.0    32.6    +      -       -      +
    204F  MET*     3.4    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 154 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150F  LEU*     3.6     6.4    +      -       +      +
    151F  MET*     3.3    15.8    +      -       -      +
    153F  ALA*     1.4    70.1    -      -       -      +
    155F  LEU*     1.3    66.9    +      -       -      +
    157F  ILE*     3.4     5.7    +      -       +      +
    158F  LEU*     2.9    22.9    +      -       -      +
    174F  VAL*     4.1    32.4    -      -       +      +
    178F  ALA*     5.2    10.8    -      -       +      -
    204F  MET*     3.7    22.2    -      -       +      +
    207F  ILE*     4.2    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 155 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151F  MET      3.1    11.9    +      -       -      +
    152F  ALA*     3.5    14.8    -      -       +      +
    154F  LEU*     1.3    76.4    -      -       -      +
    156F  SER*     1.4    62.9    +      -       -      +
    158F  LEU*     3.2    20.1    +      -       +      +
    159F  VAL*     3.2    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 156 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562D  ILE*     3.8    28.5    -      -       -      +
    566D  ILE*     3.9    22.0    -      -       -      +
    152F  ALA      2.7    18.1    +      -       -      -
    153F  ALA*     3.2    13.9    +      -       -      -
    155F  LEU*     1.4    72.4    -      -       -      +
    157F  ILE*     1.4    64.8    +      -       -      +
    159F  VAL*     3.6     7.5    -      -       -      +
    160F  TYR*     3.2    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 157 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559D  THR*     3.6    27.1    -      -       +      +
    562D  ILE*     4.5    10.3    -      -       +      -
    563D  LYS*     4.3    20.6    -      -       +      -
    153F  ALA      3.0    20.4    +      -       -      +
    154F  LEU*     4.1     6.7    -      -       +      +
    156F  SER*     1.4    74.3    -      -       -      +
    158F  LEU*     1.3    64.3    +      -       -      +
    160F  TYR*     3.1     5.0    +      -       +      -
    161F  VAL*     3.1    31.0    +      -       +      +
    174F  VAL*     5.5     0.4    -      -       -      -
    204F  MET*     4.5     0.7    -      -       -      -
    207F  ILE*     3.9    38.8    -      -       +      +
    211F  LEU*     3.6    27.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 158 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154F  LEU      2.9    15.1    +      -       -      +
    155F  LEU*     3.2    26.0    +      -       +      +
    157F  ILE*     1.3    75.9    -      -       -      +
    159F  VAL*     1.4    56.3    +      -       +      +
    161F  VAL*     3.6     2.8    +      -       -      -
    162F  GLY      3.0    22.3    +      -       -      -
    167F  TRP*     3.6    16.4    -      -       +      -
    170F  ALA*     3.6    27.0    -      -       +      +
    171F  ALA*     4.2     8.3    -      -       +      +
    174F  VAL*     3.5    38.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 159 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155F  LEU*     3.2    32.5    -      -       +      +
    156F  SER*     3.6     8.5    -      -       -      +
    158F  LEU*     1.4    75.5    -      -       +      +
    160F  TYR*     1.3    62.1    +      -       -      +
    162F  GLY*     3.6     0.6    +      -       -      -
    163F  PHE*     3.2    43.9    +      -       +      +
    167F  TRP*     3.7    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 160 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    555D  ASP*     2.9    30.1    +      -       +      -
    558D  ILE*     3.5    38.3    -      -       +      +
    559D  THR*     3.7    24.9    -      -       -      -
    562D  ILE*     3.8    28.9    -      -       +      -
    156F  SER      3.2     2.6    +      -       -      +
    157F  ILE*     3.1     8.7    +      -       +      +
    159F  VAL*     1.3    75.9    -      -       -      +
    161F  VAL*     1.4    68.2    +      -       +      +
    163F  PHE*     3.5     4.3    +      -       +      +
    164F  ARG*     2.9    63.8    +      -       +      +
    165F  PHE*     5.7     1.6    -      +       -      -
    215F  ILE*     6.0     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 161 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559D  THR*     5.6     0.9    -      -       -      +
    157F  ILE*     3.1    26.1    +      -       +      +
    158F  LEU*     4.1     4.7    -      -       -      +
    160F  TYR*     1.4    81.0    -      -       +      +
    162F  GLY*     1.4    62.7    +      -       -      +
    164F  ARG*     4.5     4.0    -      -       -      -
    165F  PHE*     3.2    31.0    +      -       +      +
    166F  GLU      3.3     7.6    +      -       -      +
    169F  LEU*     3.8    21.5    -      -       +      -
    170F  ALA*     3.8    23.3    -      -       +      +
    173F  VAL*     5.2     5.6    -      -       +      -
    211F  LEU*     4.2    24.2    -      -       +      -
    215F  ILE*     5.4     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 162 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158F  LEU      3.0    13.3    +      -       -      -
    159F  VAL      3.6     0.9    +      -       -      -
    160F  TYR      3.3     0.2    -      -       -      -
    161F  VAL*     1.4    75.8    -      -       -      +
    163F  PHE*     1.4    59.2    +      -       -      +
    165F  PHE      3.8     1.4    -      -       -      +
    166F  GLU*     3.5    19.0    +      -       -      -
    167F  TRP*     3.6    43.7    +      -       -      -
    170F  ALA*     3.4    10.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 163 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159F  VAL*     3.2    38.1    +      -       +      +
    160F  TYR*     4.1     4.3    -      -       +      +
    162F  GLY*     1.4    71.9    -      -       -      +
    164F  ARG*     1.3    62.7    +      -       -      +
    165F  PHE      3.6     1.4    +      -       -      +
    167F  TRP*     4.0    22.4    -      +       -      +
----------------------------------------------------------
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Residues in contact with ARG 164 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551D  SER*     4.1    20.2    +      -       -      -
    555D  ASP*     2.6    41.8    +      -       -      -
    160F  TYR*     2.9    49.3    +      -       +      +
    161F  VAL      4.2     0.2    -      -       -      +
    163F  PHE*     1.3    74.2    -      -       -      +
    165F  PHE*     1.3   102.0    +      -       +      +
    219F  ASP*     4.2     6.5    +      -       -      -
    222F  ARG*     5.1     1.4    -      -       -      +
    226F  ARG*     5.4    10.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 165 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    555D  ASP*     3.7    20.6    -      -       -      -
    160F  TYR*     5.7     2.0    -      +       -      -
    161F  VAL*     3.2    22.3    +      -       +      +
    162F  GLY      3.8     3.8    -      -       -      +
    163F  PHE      4.9     0.9    -      -       -      +
    164F  ARG*     1.3   119.1    -      -       +      +
    166F  GLU*     1.3    66.3    +      -       +      +
    169F  LEU*     5.3     1.3    -      -       +      -
    215F  ILE*     3.8    37.5    -      -       +      -
    218F  SER*     3.2    29.8    -      -       -      +
    219F  ASP*     3.7    22.2    -      -       +      -
    222F  ARG*     3.8    39.6    +      -       +      +
    226F  ARG*     5.6     1.1    +      -       -      -
----------------------------------------------------------
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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