Contacts of the helix formed by residues 142 - 173 (chain A) in PDB entry 3QJQ


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with HIS 142 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  PRO*     3.7    23.6    -      -       +      -
    128A  GLU*     3.0    42.7    +      -       +      +
    129A  ALA*     4.2     2.8    -      -       +      +
    141A  GLY*     1.3    74.8    -      -       -      -
    143A  TRP*     1.3   118.8    +      +       -      +
    144A  ALA*     3.0    16.9    +      -       +      +
    145A  PHE*     2.9    17.3    +      -       -      +
    146A  TYR*     3.7     6.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 143 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  VAL*     5.4     1.3    -      -       +      -
    141A  GLY      3.7     1.4    +      -       -      -
    142A  HIS*     1.3   105.3    +      +       -      +
    144A  ALA*     1.3    80.0    +      -       +      -
    145A  PHE      3.2     0.7    +      -       -      -
    146A  TYR*     3.3     4.5    +      -       -      +
    147A  LEU*     3.0    53.0    +      -       +      +
    209A  LEU*     5.1     0.3    -      -       -      +
    212A  SER*     3.1    43.9    +      -       -      +
    213A  PHE*     3.8    30.8    -      +       +      +
----------------------------------------------------------
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Residues in contact with ALA 144 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  VAL*     3.3    28.5    -      -       +      +
    120A  ALA*     3.7     4.2    -      -       -      -
    122A  LEU*     5.8     3.4    -      -       +      -
    123A  PRO*     3.7    19.7    -      -       +      -
    142A  HIS*     3.0    14.9    +      -       +      +
    143A  TRP*     1.3    95.3    -      -       +      +
    145A  PHE*     1.3    59.2    +      -       -      +
    146A  TYR      3.4     0.2    -      -       -      -
    147A  LEU*     4.4     1.8    -      -       -      -
    148A  GLY*     3.0    20.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  THR*     5.4     0.2    -      -       +      -
     74A  VAL*     4.5    17.3    -      -       +      -
    120A  ALA*     4.3    11.6    -      -       +      +
    123A  PRO*     3.8    11.0    -      -       +      +
    124A  LEU*     4.0    29.2    -      -       +      -
    129A  ALA*     3.7    28.0    -      -       +      -
    131A  VAL*     4.2    11.4    -      -       +      -
    132A  LEU      4.7     2.9    -      -       -      -
    135A  PHE*     4.0    33.0    -      +       +      -
    141A  GLY*     5.4     0.2    -      -       -      -
    142A  HIS      2.9    11.7    +      -       -      +
    144A  ALA*     1.3    77.3    -      -       -      +
    146A  TYR*     1.3    96.5    +      +       -      +
    149A  ALA*     3.0    36.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  VAL*     4.8     2.3    -      -       -      +
    135A  PHE*     3.8    36.2    +      +       -      +
    139A  LEU      3.5    13.9    +      -       -      -
    140A  LYS*     4.2     1.9    -      -       +      -
    141A  GLY*     3.4    38.3    +      -       -      -
    142A  HIS      3.7     6.3    -      -       -      -
    143A  TRP      3.3     5.0    +      -       -      +
    145A  PHE*     1.3    91.4    -      +       -      +
    147A  LEU*     1.3    65.9    +      -       -      +
    148A  GLY      3.1     0.5    +      -       -      -
    149A  ALA*     3.2     5.3    +      -       +      +
    150A  SER*     2.9    26.0    +      -       -      +
    208A  LEU*     3.7    42.3    -      -       +      +
    209A  LEU*     3.8    16.6    -      -       +      -
    211A  TRP*     4.4     9.1    -      +       -      -
    212A  SER*     3.5    23.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  VAL*     4.6    12.1    -      -       +      -
    143A  TRP*     3.0    45.7    +      -       +      +
    144A  ALA*     4.4     1.8    -      -       -      -
    146A  TYR*     1.3    75.8    -      -       -      +
    148A  GLY*     1.3    66.1    +      -       -      +
    150A  SER*     3.3     6.3    -      -       -      -
    151A  VAL*     3.1    34.5    +      -       +      +
    209A  LEU*     3.5    17.7    -      -       +      +
    213A  PHE*     4.5    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  GLY*     3.7    22.7    -      -       -      +
    119A  VAL*     4.1     6.7    -      -       -      +
    120A  ALA*     3.9     8.1    -      -       -      -
    144A  ALA      3.0    21.4    +      -       -      -
    145A  PHE      3.9     0.2    -      -       -      -
    147A  LEU*     1.3    75.5    -      -       -      +
    149A  ALA*     1.3    58.1    +      -       -      +
    151A  VAL*     2.8    22.3    +      -       -      +
    152A  PHE*     3.0    12.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ILE*     6.1     4.9    -      -       +      -
    120A  ALA*     4.1     7.3    -      -       +      +
    135A  PHE*     5.6    10.8    -      -       +      -
    145A  PHE*     3.0    32.1    +      -       +      +
    146A  TYR*     3.8     4.3    -      -       +      +
    148A  GLY*     1.3    73.0    -      -       -      +
    150A  SER*     1.3    52.3    +      -       -      +
    152A  PHE*     3.4     9.8    -      -       -      +
    153A  VAL*     2.7    42.2    +      -       +      +
    200A  LEU*     6.5     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  TYR      2.9    14.8    +      -       -      -
    147A  LEU*     3.3    15.7    -      -       -      -
    149A  ALA*     1.3    75.3    -      -       -      +
    151A  VAL*     1.3    66.5    +      -       -      +
    153A  VAL*     4.4     2.0    -      -       -      +
    154A  LEU*     3.2    36.6    +      -       -      +
    204A  ALA*     3.7    25.8    -      -       -      +
    209A  LEU*     3.7    14.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  MET*     3.5    44.2    -      -       +      +
    115A  ILE*     5.4     3.8    -      -       +      -
    116A  GLY*     4.3    11.0    -      -       -      +
    147A  LEU*     3.1    30.7    +      -       +      +
    148A  GLY*     2.8    11.6    +      -       -      +
    150A  SER*     1.3    71.6    -      -       -      +
    152A  PHE*     1.3    68.2    +      -       -      +
    153A  VAL      3.1     1.2    +      -       -      -
    154A  LEU*     4.8     2.9    -      -       +      -
    155A  SER      3.3    18.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  LEU*     5.3     0.4    -      -       +      -
     78A  ILE*     3.5    35.4    -      -       +      -
     79A  VAL*     3.4    41.3    -      -       +      -
     82A  GLN*     3.1    54.0    +      -       +      +
     83A  LEU*     3.9    13.5    -      -       +      -
    112A  MET      3.9     6.7    +      -       -      -
    113A  ALA*     3.4    44.0    -      -       +      -
    116A  GLY*     4.0     4.9    -      -       -      -
    117A  LEU*     4.2    11.2    -      -       +      -
    120A  ALA*     6.3     0.7    -      -       +      -
    148A  GLY      3.0    11.9    +      -       -      +
    149A  ALA*     3.4    13.7    -      -       -      +
    151A  VAL*     1.3    76.2    -      -       -      +
    153A  VAL*     1.3    63.9    +      -       +      +
    155A  SER*     3.8     6.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ILE*     4.9    10.5    -      -       +      -
     82A  GLN*     3.6    15.3    -      -       -      +
    149A  ALA*     2.7    25.6    +      -       +      +
    150A  SER*     3.4     2.2    +      -       -      +
    151A  VAL      3.2     0.2    -      -       -      -
    152A  PHE*     1.3    78.3    -      -       +      +
    154A  LEU*     1.3    54.9    +      -       +      +
    156A  THR*     2.2    45.7    +      -       -      +
    157A  TRP*     6.0     0.7    -      -       +      -
    193A  TRP*     3.7    32.1    -      -       +      -
    197A  SER*     5.0     6.7    -      -       -      -
    200A  LEU*     4.4    25.6    -      -       +      -
    201A  VAL*     5.2     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  MET*     3.9    17.4    -      -       +      +
    150A  SER*     3.2    24.0    +      -       -      +
    151A  VAL*     5.4     2.7    -      -       +      -
    153A  VAL*     1.3    72.5    -      -       +      +
    155A  SER*     1.3    56.1    +      -       -      +
    156A  THR*     4.3     1.3    -      -       -      -
    157A  TRP*     2.8    49.4    +      -       +      +
    158A  VAL*     3.6     4.7    +      -       -      +
    201A  VAL*     3.8    39.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  GLN*     3.1    18.8    +      -       -      -
    109A  SER*     3.2    22.3    +      -       -      -
    112A  MET*     3.4    36.9    -      -       -      +
    113A  ALA*     4.4     4.7    +      -       -      +
    151A  VAL      3.3     6.8    +      -       -      -
    152A  PHE      3.8    13.0    -      -       -      -
    153A  VAL      2.9     3.4    +      -       -      -
    154A  LEU*     1.3    72.5    -      -       -      +
    156A  THR*     1.3    53.4    +      -       -      -
    158A  VAL*     2.6    29.9    +      -       -      +
    159A  SER      3.1     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  GLN*     3.7    36.8    -      -       +      +
     86A  GLN*     3.7    11.7    -      -       -      +
    152A  PHE      4.4     0.2    +      -       -      -
    153A  VAL*     2.2    37.6    +      -       -      +
    155A  SER*     1.3    73.1    +      -       -      +
    157A  TRP*     1.3    55.9    +      -       -      -
    159A  SER*     3.3     6.4    +      -       -      -
    160A  ILE*     2.7    38.0    +      -       -      +
    190A  TRP*     3.9     4.5    -      -       +      -
    193A  TRP*     3.1    35.5    +      -       +      +
    238A  PHE*     3.9    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  VAL*     6.0     0.4    -      -       +      -
    154A  LEU*     2.8    36.7    +      -       +      +
    156A  THR*     1.3    86.1    +      -       -      +
    158A  VAL*     1.3    57.3    +      -       +      +
    160A  ILE*     3.4    21.2    -      -       +      +
    161A  TYR*     3.0    24.8    +      -       -      +
    194A  PHE*     3.7    30.3    -      +       +      -
    197A  SER*     2.9    28.4    +      -       -      -
    198A  LEU*     4.0    23.3    -      -       +      -
    201A  VAL*     4.3    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  LEU*     3.4    45.1    -      -       +      +
    108A  LEU*     4.4    13.0    -      -       +      -
    109A  SER*     4.5     7.9    -      -       -      +
    112A  MET*     4.2    22.7    -      -       -      -
    154A  LEU      4.5     3.6    -      -       -      +
    155A  SER*     2.6    18.1    +      -       -      +
    157A  TRP*     1.3    70.8    -      -       +      +
    159A  SER*     1.3    64.7    +      -       -      +
    161A  TYR*     2.9     6.2    +      -       +      +
    162A  ILE*     2.8    32.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  PHE*     5.3     1.4    -      -       -      -
     86A  GLN*     3.0    29.9    +      -       -      +
     90A  VAL*     4.1    11.8    -      -       -      +
    109A  SER*     4.9     7.1    -      -       -      -
    155A  SER      3.1     5.5    +      -       -      -
    156A  THR*     3.3    12.1    -      -       -      -
    158A  VAL*     1.3    75.8    -      -       -      +
    160A  ILE*     1.3    62.2    +      -       -      +
    162A  ILE*     4.0     7.9    -      -       -      +
    163A  VAL*     3.2    27.2    +      -       -      +
    190A  TRP*     3.5    27.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  THR      2.7    25.2    +      -       -      +
    157A  TRP*     3.4    21.1    -      -       +      +
    158A  VAL      3.2     0.2    -      -       -      -
    159A  SER*     1.3    69.4    -      -       -      +
    161A  TYR*     1.3    68.3    +      -       -      +
    163A  VAL*     3.0     3.5    +      -       -      +
    164A  LEU*     2.8    37.3    +      -       +      +
    190A  TRP*     3.7    41.7    -      -       +      +
    191A  LEU*     5.0     3.4    -      -       +      +
    193A  TRP*     4.2     5.2    -      -       +      -
    194A  PHE*     3.4    52.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ASN*     5.5     4.7    -      -       +      -
    105A  LEU*     3.8    26.5    -      -       +      -
    157A  TRP      3.0    10.0    +      -       -      +
    158A  VAL*     2.9    15.3    +      -       +      +
    160A  ILE*     1.3    76.8    -      -       -      +
    162A  ILE*     1.3    69.2    +      -       -      +
    164A  LEU*     3.2     7.6    +      -       +      +
    165A  ASP*     2.9    35.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  VAL*     4.1    21.1    -      -       +      -
    101A  PRO*     4.0    23.7    -      -       +      +
    102A  ASN*     4.2    11.8    +      -       +      +
    105A  LEU*     2.9    51.8    -      -       +      +
    106A  MET*     3.4    10.8    -      -       +      +
    109A  SER*     4.6     1.8    -      -       -      +
    158A  VAL*     2.8    32.0    +      -       +      +
    159A  SER*     4.0     5.8    -      -       -      +
    161A  TYR*     1.3    75.9    -      -       -      +
    163A  VAL*     1.3    63.7    +      -       +      +
    165A  ASP*     3.2    10.7    +      -       -      +
    166A  LEU*     3.1    25.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  MET      3.5    20.4    -      -       -      +
     90A  VAL*     3.7    20.0    -      -       +      +
     93A  PRO*     5.0     8.1    -      -       +      -
    159A  SER      3.2    13.1    +      -       -      +
    160A  ILE      3.0     3.0    +      -       -      +
    162A  ILE*     1.3    75.7    -      -       +      +
    164A  LEU*     1.3    66.9    +      -       +      +
    165A  ASP      3.0     2.0    +      -       -      -
    166A  LEU*     3.4    13.3    +      -       +      +
    167A  TRP*     3.0    21.2    +      -       -      +
    183A  THR*     5.6     2.5    -      -       +      -
    186A  ALA*     4.3    19.7    -      -       +      +
    187A  VAL*     4.7     9.4    -      -       +      -
    190A  TRP*     3.5    27.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  ILE*     2.8    34.1    +      -       +      +
    161A  TYR*     3.6     8.1    -      -       +      +
    163A  VAL*     1.3    72.7    -      -       +      +
    165A  ASP*     1.3    57.1    +      -       -      +
    167A  TRP*     3.4    18.8    -      -       +      +
    168A  ARG*     2.9    31.5    +      -       +      +
    187A  VAL*     4.2    19.5    -      -       +      +
    190A  TRP*     5.5     3.6    -      -       +      -
    191A  LEU*     4.0    39.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ASN*     4.3    20.7    +      -       -      +
    161A  TYR*     2.9    30.8    +      -       +      +
    162A  ILE*     3.3    12.1    -      -       -      +
    163A  VAL      3.0     0.2    -      -       -      -
    164A  LEU*     1.3    74.6    -      -       -      +
    166A  LEU*     1.3    68.5    +      -       -      +
    168A  ARG*     2.8    19.1    +      -       -      +
    169A  ARG*     2.9    50.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  VAL*     4.7     4.5    -      -       +      +
     93A  PRO*     4.5     8.5    -      -       +      -
     94A  ALA*     3.7    37.5    -      -       +      +
     97A  LEU*     4.4    12.7    -      -       +      +
     99A  MET*     3.9    19.3    -      -       +      +
    100A  ARG      3.7     3.4    -      -       -      +
    101A  PRO*     3.5    29.2    -      -       +      -
    162A  ILE      3.1    15.3    +      -       -      +
    163A  VAL*     3.6    17.3    -      -       +      +
    165A  ASP*     1.3    75.5    -      -       -      +
    167A  TRP*     1.3    64.0    +      -       -      +
    169A  ARG*     3.2    28.3    +      -       -      +
    170A  TRP*     2.9    24.1    +      -       -      +
    183A  THR*     5.8     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LEU*     4.8     0.6    -      -       -      +
    163A  VAL      3.0    10.2    +      -       -      +
    164A  LEU*     3.4    29.4    -      -       +      +
    166A  LEU*     1.3    78.8    -      -       -      +
    168A  ARG*     1.3    77.2    +      -       +      +
    170A  TRP*     3.2     7.2    +      +       +      -
    171A  LYS*     2.9    56.0    +      -       +      +
    179A  THR*     3.1    36.2    +      -       +      +
    183A  THR*     4.0    12.0    -      -       +      +
    187A  VAL*     3.7    26.2    -      -       +      -
    191A  LEU*     5.7     1.1    -      -       +      -
    525A  ASP      5.3     1.8    -      -       -      -
    527A  ILE*     3.5    42.0    -      -       +      -
    528A  GLY      5.7     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164A  LEU*     2.9    16.5    +      -       +      +
    165A  ASP*     2.8    17.4    +      -       -      +
    167A  TRP*     1.3    82.9    -      -       +      +
    169A  ARG*     1.3    55.0    +      -       +      +
    171A  LYS*     3.2    15.1    +      -       -      +
    172A  ALA*     3.0    49.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  MET*     3.3    41.1    -      -       +      +
    100A  ARG*     2.7    32.9    +      -       -      +
    101A  PRO*     4.2     3.2    -      -       -      +
    102A  ASN*     4.3     3.4    -      -       -      +
    165A  ASP*     2.9    45.9    +      -       -      +
    166A  LEU*     3.5    21.8    -      -       -      +
    168A  ARG*     1.3    70.1    -      -       +      +
    170A  TRP*     1.3    66.1    +      -       -      +
    172A  ALA*     3.4    15.3    +      -       +      +
    173A  ALA*     3.6    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LEU*     3.9    36.5    -      -       +      +
     99A  MET*     4.2     9.4    -      -       -      -
    166A  LEU      2.9    16.8    +      -       -      +
    167A  TRP*     3.9     7.6    -      +       +      +
    169A  ARG*     1.3    75.9    -      -       -      +
    171A  LYS*     1.3    87.4    +      -       +      +
    172A  ALA      3.3     0.2    +      -       -      -
    173A  ALA*     3.4     3.0    +      -       -      -
    174A  ASN*     3.2    61.0    +      -       +      +
    177A  LYS*     4.1    20.4    -      -       +      -
    178A  VAL      2.9    31.9    -      -       -      -
    179A  THR*     3.8     7.2    -      -       -      -
    180A  PRO*     3.5    31.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  TRP*     2.9    47.9    +      -       +      +
    168A  ARG*     3.3    21.7    +      -       -      +
    170A  TRP*     1.3    91.1    -      -       +      +
    172A  ALA*     1.3    60.8    +      -       -      +
    174A  ASN      3.4    21.1    -      -       -      +
    175A  PRO*     3.5     5.7    -      -       -      +
    176A  GLY      5.1     1.7    +      -       -      +
    177A  LYS      2.9    25.7    +      -       -      +
    179A  THR*     3.1    22.2    +      -       -      +
    525A  ASP*     3.0    22.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168A  ARG*     3.0    30.0    +      -       -      +
    169A  ARG*     3.7     9.9    -      -       +      +
    170A  TRP      3.2     0.6    -      -       -      -
    171A  LYS*     1.3    76.4    -      -       -      +
    173A  ALA*     1.3    57.5    +      -       -      +
    174A  ASN      3.2     3.4    +      -       -      -
    175A  PRO*     3.4    19.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169A  ARG      3.6     9.9    +      -       -      +
    170A  TRP*     3.4     3.3    +      -       +      +
    172A  ALA*     1.3    76.5    -      -       +      +
    174A  ASN*     1.3    71.9    +      -       -      +
    175A  PRO*     3.6     6.2    -      -       -      +
----------------------------------------------------------
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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