Contacts of the helix formed by residues 143 - 172 (chain B) in PDB entry 4D1Q


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 SER 143 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  VAL*     4.3     0.9    -      -       -      -
    141B  LEU      3.9     0.2    +      -       -      -
    142B  PRO*     1.3    76.9    -      -       -      +
    144B  PRO*     1.3    67.8    -      -       -      +
    145B  ILE*     3.1    14.0    -      -       -      +
    146B  THR*     2.8    37.1    +      -       -      +
    147B  LEU*     3.2    10.7    +      -       -      +
      6D    G      2.9    41.9    +      -       -      -
      7D    T      4.8     5.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 144 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  PHE*     3.8    35.0    -      -       +      +
    110A  SER*     4.0    11.0    -      -       -      +
    112A  VAL*     4.1     1.5    -      -       +      -
    113A  SER*     3.7    33.9    -      -       -      +
    142B  PRO      3.9     1.1    -      -       -      +
    143B  SER*     1.3    87.8    -      -       -      +
    145B  ILE*     1.3    65.3    +      -       +      +
    147B  LEU*     2.9    20.1    +      -       +      +
    148B  SER*     2.9    11.3    +      -       -      -
      6C    A      5.1     1.1    -      -       -      +
      7C    C      6.5     0.9    -      -       +      -
      7D    T      5.9     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 145 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143B  SER*     3.1    20.2    -      -       -      +
    144B  PRO*     1.3    81.7    -      -       +      +
    146B  THR*     1.3    64.3    +      -       -      +
    148B  SER*     3.9     8.4    -      -       -      +
    149B  ARG*     3.0    62.6    +      -       +      +
      7C    C      4.7    20.4    -      -       +      -
      8C    A      4.0    20.2    -      -       -      +
      9C    A      4.2     4.7    -      -       -      +
      6D    G      4.0     8.1    -      -       -      +
      7D    T      3.7    27.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 146 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ILE*     3.9    21.7    -      -       +      +
    142B  PRO*     3.3    34.1    -      -       +      -
    143B  SER*     2.8    19.3    +      -       -      +
    145B  ILE*     1.3    78.9    -      -       -      +
    147B  LEU*     1.3    59.7    +      -       +      +
    149B  ARG*     3.2    18.3    +      -       -      +
    150B  LYS*     2.9    27.0    +      -       -      +
      5D    T      3.7    23.4    +      -       -      -
      6D    G      3.2    13.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 147 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ILE*     4.2     7.6    -      -       +      +
     98A  CYS*     3.6    11.2    -      -       +      -
     99A  ALA*     3.3    39.7    -      -       +      +
    102A  VAL*     4.6     6.5    -      -       +      -
    109A  PHE*     3.9    25.1    -      -       +      +
    112A  VAL*     3.3    44.2    -      -       +      -
    142B  PRO*     4.3    11.2    -      -       +      -
    143B  SER      3.2     8.0    +      -       -      +
    144B  PRO*     2.9     6.6    +      -       +      +
    146B  THR*     1.3    74.0    -      -       +      +
    148B  SER*     1.3    68.1    +      -       -      +
    150B  LYS*     2.9     6.4    +      -       -      +
    151B  VAL*     2.9    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 148 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  PHE*     3.6    31.8    -      -       -      -
    144B  PRO      2.9    10.7    +      -       -      -
    145B  ILE*     3.9    11.9    -      -       -      -
    147B  LEU*     1.3    76.8    -      -       -      +
    149B  ARG*     1.3    67.1    +      -       -      +
    151B  VAL*     3.1     3.3    +      -       -      +
    152B  THR*     3.1    26.2    +      -       -      -
    593B  THR*     4.1     8.5    +      -       -      +
      7C    C      2.9    26.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 149 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  ILE*     3.0    52.5    +      -       +      +
    146B  THR*     3.4    13.1    +      -       -      +
    148B  SER*     1.3    79.2    -      -       -      +
    150B  LYS*     1.3    61.7    +      -       -      +
    152B  THR*     3.5     7.1    +      -       -      -
    153B  SER*     3.1    21.5    +      -       -      -
      8C    A      5.8     0.4    +      -       -      -
      9C    A      4.4     3.0    +      -       -      +
     10C    C      5.5     1.6    -      -       -      +
      5D    T      3.8    31.6    +      -       -      +
      6D    G      2.8    44.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 150 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  LYS*     6.2     3.1    -      -       -      -
     95A  ILE*     3.3    35.4    -      -       +      -
     96A  GLU*     4.1    24.2    -      -       -      +
     99A  ALA*     3.9    19.5    -      -       +      -
    146B  THR      2.9    14.1    +      -       -      +
    147B  LEU*     2.9     9.6    +      -       -      +
    149B  ARG*     1.3    72.2    -      -       -      +
    151B  VAL*     1.3    55.7    +      -       -      +
    153B  SER*     2.7    21.1    +      -       -      -
    154B  ASP*     2.6    70.9    +      -       -      +
    157B  GLU*     5.2     2.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 151 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  ALA*     4.2    16.8    -      -       +      +
    102A  VAL*     4.9     1.1    -      -       +      -
    103A  VAL*     3.7    23.1    -      -       +      -
    109A  PHE*     4.3    12.6    -      -       +      -
    147B  LEU      2.9    15.5    +      -       -      +
    148B  SER*     3.5    10.1    -      -       -      +
    150B  LYS*     1.3    76.1    -      -       -      +
    152B  THR*     1.3    64.6    +      -       -      +
    154B  ASP*     4.4     5.2    -      -       -      -
    155B  ALA*     2.9    25.5    +      -       -      +
    593B  THR*     5.5     0.9    -      -       +      -
    596B  SER*     3.8    18.4    -      -       -      -
    597B  LEU*     3.8    28.0    -      -       +      +
    600B  LEU*     3.4     9.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 152 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  SER*     3.1    20.8    +      -       -      -
    149B  ARG*     3.9     6.6    -      -       -      -
    151B  VAL*     1.3    76.3    -      -       -      +
    153B  SER*     1.3    63.2    +      -       -      +
    155B  ALA*     3.2    14.9    -      -       -      +
    156B  LYS*     3.3    23.5    +      -       -      +
    592B  GLN*     4.1    29.2    -      -       +      +
    593B  THR*     4.4    12.6    +      -       -      +
    596B  SER*     3.8    18.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 153 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149B  ARG      3.1    14.7    +      -       -      -
    150B  LYS*     2.7    26.9    +      -       -      -
    152B  THR*     1.3    68.6    -      -       -      +
    154B  ASP*     1.3    69.4    +      -       -      -
    155B  ALA      3.0     1.6    -      -       -      -
    156B  LYS*     2.9    21.7    +      -       -      +
    157B  GLU*     3.0    17.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 154 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  GLU*     5.8     0.7    -      -       -      +
     99A  ALA*     5.4     2.4    -      -       -      +
    100A  GLN*     4.3     8.5    +      -       -      +
    150B  LYS*     2.6    52.6    +      -       +      +
    151B  VAL*     3.9     5.8    -      -       -      +
    153B  SER*     1.3    73.9    +      -       -      +
    155B  ALA*     1.3    63.9    +      -       -      +
    157B  GLU*     3.5    21.3    -      -       -      +
    158B  LYS*     3.0    36.3    +      -       -      +
    600B  LEU*     4.0    11.2    -      -       +      -
    604B  TYR*     3.3    20.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 155 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151B  VAL      2.9    13.9    +      -       -      +
    152B  THR      3.2    11.9    -      -       -      +
    154B  ASP*     1.3    82.3    -      -       -      +
    156B  LYS*     1.3    56.6    +      -       -      +
    157B  GLU      2.8     9.4    +      -       -      -
    158B  LYS*     3.7     0.3    -      -       -      +
    159B  LYS*     2.8    36.4    +      -       -      +
    596B  SER*     3.5    23.1    -      -       -      +
    599B  PHE*     4.3     6.0    -      -       +      -
    600B  LEU*     3.5    19.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 156 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  THR*     3.7    24.1    +      -       -      +
    153B  SER*     2.9    11.5    +      -       -      +
    155B  ALA*     1.3    78.8    -      -       -      +
    157B  GLU*     1.3    62.3    +      -       -      +
    159B  LYS*     4.1    16.4    -      -       -      +
    160B  ALA*     3.3    21.1    +      -       -      +
    592B  GLN*     5.2     5.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 157 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150B  LYS*     5.2     2.3    +      -       -      -
    153B  SER*     3.0    16.0    +      -       -      +
    154B  ASP*     3.5    26.5    -      -       -      +
    155B  ALA      2.8     4.0    +      -       -      -
    156B  LYS*     1.3    71.0    -      -       -      +
    158B  LYS*     1.3    76.4    +      -       +      +
    160B  ALA*     3.1     8.5    +      -       -      +
    161B  LEU*     2.8    28.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 158 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  GLN*     5.4     4.2    -      -       -      +
    154B  ASP*     3.1    24.9    -      -       -      +
    155B  ALA      2.9     4.9    +      -       -      +
    157B  GLU*     1.3    83.4    +      -       +      +
    159B  LYS*     1.3    67.4    +      -       -      +
    160B  ALA      3.0     2.0    -      -       -      -
    161B  LEU*     3.0    27.0    +      -       +      +
    162B  ILE*     3.1    18.7    +      -       -      +
    599B  PHE*     4.1     7.4    -      -       +      -
    600B  LEU*     4.2     7.4    -      -       +      -
    603B  PHE*     3.7    40.6    -      -       +      -
    604B  TYR*     4.1    26.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 159 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155B  ALA*     2.8    25.3    +      -       -      +
    156B  LYS*     4.1    25.2    -      -       -      +
    158B  LYS*     1.3    72.9    -      -       -      +
    160B  ALA*     1.3    62.5    +      -       -      +
    162B  ILE*     3.9     0.7    -      -       -      +
    163B  GLY*     3.5    11.8    +      -       -      -
    209B  LEU      4.3     2.0    -      -       -      +
    212B  LYS*     5.5     0.8    -      -       -      +
    234B  GLN*     3.1    50.9    -      -       -      +
    235B  PHE*     3.6    33.2    -      -       +      -
    595B  ASP*     3.6    19.3    +      -       -      +
    596B  SER*     5.1     1.4    +      -       -      -
    599B  PHE*     3.3    42.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 160 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  LYS      3.3    12.6    +      -       -      +
    157B  GLU*     3.1    10.6    +      -       -      +
    158B  LYS      3.0     0.4    -      -       -      -
    159B  LYS*     1.3    77.6    -      -       -      +
    161B  LEU*     1.3    67.3    +      -       -      +
    163B  GLY*     2.9    16.2    +      -       -      -
    164B  ARG      4.5     0.3    +      -       -      -
    234B  GLN      4.6     8.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 161 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157B  GLU*     2.8    19.7    +      -       +      +
    158B  LYS*     3.0    29.1    +      -       +      +
    160B  ALA*     1.3    73.2    -      -       -      +
    162B  ILE*     1.3    77.0    +      -       +      +
    163B  GLY      2.9     5.7    +      -       -      -
    164B  ARG*     3.7    10.7    +      -       -      +
    603B  PHE*     5.1     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 162 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158B  LYS      3.1    10.9    +      -       -      +
    159B  LYS      3.9     5.2    -      -       -      +
    161B  LEU*     1.3    79.2    -      -       +      +
    163B  GLY*     1.4    55.0    +      -       -      +
    164B  ARG*     2.7    17.9    +      -       -      -
    165B  GLU*     2.8    22.0    +      -       +      +
    166B  ILE*     3.2    36.0    +      -       +      +
    207B  LEU*     4.3     5.4    -      -       +      -
    235B  PHE*     4.0     3.4    -      -       +      -
    599B  PHE*     3.9    26.2    -      -       +      -
    603B  PHE*     3.2    30.3    -      -       +      -
    607B  PHE*     3.4    31.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 163 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159B  LYS      3.5     7.5    +      -       -      -
    160B  ALA      2.9    18.6    +      -       -      -
    162B  ILE*     1.4    78.1    -      -       -      +
    164B  ARG*     1.3    56.3    +      -       -      +
    166B  ILE*     4.2     0.8    -      -       -      +
    167B  LYS*     3.1    28.9    +      -       -      +
    235B  PHE*     3.2    31.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 164 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160B  ALA      4.5     0.2    +      -       -      -
    161B  LEU      3.7     9.1    +      -       -      +
    162B  ILE      2.7     5.1    +      -       -      -
    163B  GLY*     1.3    69.4    -      -       -      +
    165B  GLU*     1.3    74.8    +      -       -      +
    166B  ILE      2.9     1.9    +      -       -      -
    167B  LYS*     3.0     6.2    +      -       -      +
    168B  SER*     2.9    28.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 165 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162B  ILE*     2.8    20.1    +      -       +      +
    164B  ARG*     1.3    83.5    -      -       -      +
    166B  ILE*     1.3    56.5    +      -       +      +
    168B  SER*     3.2     8.0    +      -       -      -
    169B  ALA*     3.1    27.1    +      -       +      +
    198B  TYR*     2.8    31.0    +      -       +      +
    200B  GLU*     3.6    27.0    -      -       -      +
    205B  ARG*     3.6    18.9    +      -       -      -
    607B  PHE*     4.1    14.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 166 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162B  ILE*     3.2    31.5    +      -       +      +
    163B  GLY      4.2     3.4    -      -       -      +
    164B  ARG      3.0     0.8    -      -       -      -
    165B  GLU*     1.3    74.7    -      -       +      +
    167B  LYS*     1.3    67.4    +      -       -      +
    168B  SER      3.0     1.6    -      -       -      -
    169B  ALA*     3.4     5.8    +      -       -      +
    170B  VAL*     3.0    27.3    +      -       +      +
    196B  LEU*     4.1    17.0    -      -       +      -
    198B  TYR*     4.2    20.2    -      -       +      +
    207B  LEU*     4.5     5.4    -      -       +      -
    209B  LEU*     4.2    12.6    -      -       +      -
    232B  PHE*     5.4     4.3    -      -       +      -
    235B  PHE*     3.3    37.0    -      -       +      -
    237B  VAL*     3.9    19.5    -      -       +      -
    607B  PHE*     5.9     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 167 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163B  GLY      3.1    19.6    +      -       -      +
    164B  ARG*     3.0     7.1    +      -       -      +
    166B  ILE*     1.3    78.0    -      -       -      +
    168B  SER*     1.3    66.2    -      -       -      +
    170B  VAL*     3.5     2.8    +      -       -      +
    171B  GLU*     3.0    54.7    +      -       +      +
    235B  PHE      4.6     2.0    -      -       -      +
    236B  ASN*     3.0    33.1    +      -       +      +
    237B  VAL*     4.1    17.7    -      -       +      +
    238B  GLU*     4.9     4.8    -      -       -      +
    239B  ASP      6.1     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 168 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164B  ARG*     2.9    14.4    +      -       -      -
    165B  GLU*     3.2    16.0    +      -       -      +
    166B  ILE      3.0     0.2    -      -       -      -
    167B  LYS*     1.3    72.9    -      -       -      +
    169B  ALA*     1.3    59.0    +      -       -      +
    171B  GLU*     2.5    36.7    +      -       -      +
    172B  LYS*     2.8    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 169 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  GLU*     3.1    12.2    +      -       +      +
    166B  ILE      3.8     2.9    -      -       -      +
    168B  SER*     1.3    81.5    +      -       -      +
    170B  VAL*     1.3    62.3    +      -       -      +
    172B  LYS*     3.4    12.5    +      -       -      +
    174B  GLY*     3.2    26.6    +      -       -      +
    175B  ALA*     4.0     2.9    -      -       +      -
    198B  TYR*     3.6    43.3    -      -       +      -
    199B  HIS      6.0     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166B  ILE*     3.0    29.2    +      -       +      +
    167B  LYS      3.6     4.9    -      -       -      +
    168B  SER      2.7     2.6    +      -       -      -
    169B  ALA*     1.3    75.7    -      -       -      +
    171B  GLU*     1.3    68.1    +      -       +      +
    173B  ASP*     3.5     6.6    +      -       -      -
    174B  GLY      4.5     0.2    +      -       -      -
    175B  ALA*     3.9    18.4    -      -       +      -
    196B  LEU*     5.0     5.2    -      -       +      -
    232B  PHE*     5.1     1.8    -      -       +      -
    237B  VAL*     4.4    17.9    -      -       +      -
    239B  ASP      4.1    16.2    -      -       -      +
    242B  SER*     3.5    23.5    -      -       -      +
    243B  ILE*     4.0    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  LYS*     3.0    54.5    +      -       +      +
    168B  SER*     2.5    15.4    +      -       -      +
    170B  VAL*     1.3    73.7    -      -       +      +
    172B  LYS*     1.3    55.7    +      -       +      +
    173B  ASP*     2.8    24.2    +      -       -      +
    242B  SER*     5.0     3.4    +      -       -      -
    461B  LEU*     4.8     3.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  SER*     2.8    36.9    +      -       -      +
    169B  ALA*     3.8     9.4    -      -       -      +
    170B  VAL      3.3     0.2    -      -       -      -
    171B  GLU*     1.3    76.4    -      -       -      +
    173B  ASP*     1.3    58.6    +      -       -      +
    174B  GLY*     3.0    12.9    +      -       -      +
    461B  LEU*     3.8    22.9    -      -       +      +
    464B  ILE*     4.7    31.5    -      -       +      +
    560B  SER*     5.7     0.7    -      -       -      -
----------------------------------------------------------
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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