Contacts of the helix formed by residues 149 - 173 (chain B) in PDB entry 3CJD


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 ASP 149 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147B  GLU      3.8     1.6    +      -       -      -
    148B  SER*     1.3    75.6    -      -       -      +
    150B  ASP*     1.3    59.5    +      -       -      +
    151B  ALA*     3.3    10.8    +      -       -      +
    152B  GLU*     2.9    58.7    +      -       -      +
    153B  LEU*     2.9    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 150 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149B  ASP*     1.3    75.3    -      -       -      +
    151B  ALA*     1.3    56.7    +      -       -      +
    153B  LEU*     3.4    15.7    +      -       -      +
    154B  ASP*     3.0    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 151 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149B  ASP*     3.3    11.5    +      -       -      +
    150B  ASP*     1.3    74.3    -      -       -      +
    152B  GLU*     1.3    66.0    +      -       +      +
    154B  ASP*     3.4     7.6    +      -       -      +
    155B  LEU*     3.1    30.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 152 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187A  MSE      5.3     1.2    -      -       -      +
    147B  GLU      4.1     3.1    -      -       -      +
    148B  SER*     3.4    20.4    +      -       -      +
    149B  ASP*     2.9    46.1    +      -       -      +
    151B  ALA*     1.3    75.0    -      -       +      +
    153B  LEU*     1.3    57.6    +      -       -      +
    155B  LEU*     3.3    12.0    +      -       +      +
    156B  MSE      3.0    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 153 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  THR*     4.1    17.9    -      -       +      +
    141B  LEU*     3.7    39.4    -      -       +      +
    142B  ALA*     3.8    22.9    -      -       +      +
    145B  PHE*     4.1     8.7    -      -       +      +
    148B  SER*     3.8    30.7    -      -       -      +
    149B  ASP      2.9    19.4    +      -       -      +
    150B  ASP*     3.7    15.0    -      -       -      +
    151B  ALA      3.3     0.2    -      -       -      -
    152B  GLU*     1.3    76.9    -      -       -      +
    154B  ASP*     1.3    49.1    +      -       -      +
    156B  MSE      3.4     5.9    +      -       +      +
    157B  THR*     2.8    40.8    +      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
    134B  PHE*     5.1     6.6    -      -       -      +
    138B  THR*     5.2     4.0    +      -       -      +
    150B  ASP      3.0    17.8    +      -       -      +
    151B  ALA*     3.7     7.6    -      -       -      +
    153B  LEU*     1.3    71.6    -      -       -      +
    155B  LEU*     1.3    63.8    +      -       -      +
    157B  THR*     3.3     8.0    +      -       -      +
    158B  ARG*     2.9    68.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 155 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  VAL*     4.3     4.2    -      -       +      +
    180A  PRO*     3.7    32.5    -      -       +      -
    183A  GLN*     3.8    37.0    -      -       +      +
    186A  THR*     6.0     0.2    -      -       +      -
    187A  MSE      3.6    25.8    -      -       -      -
    151B  ALA*     3.1    21.6    +      -       +      +
    152B  GLU*     3.7    10.8    -      -       +      +
    154B  ASP*     1.3    80.1    -      -       +      +
    156B  MSE      1.3    52.7    +      -       -      +
    158B  ARG*     3.4     7.7    +      -       -      +
    159B  THR*     2.7    36.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with MSE 156 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187A  MSE      4.0    21.0    -      -       +      +
    190A  LEU*     4.2    17.5    -      -       +      +
    191A  LEU*     5.5     2.0    -      -       -      -
    194A  GLN*     3.7    27.8    -      -       -      +
    141B  LEU*     3.8    15.2    -      -       +      +
    145B  PHE*     4.1    26.0    -      -       +      -
    152B  GLU      3.0    16.9    +      -       -      +
    153B  LEU*     3.8     7.2    -      -       +      +
    154B  ASP      3.4     0.2    -      -       -      -
    155B  LEU*     1.3    71.9    -      -       -      +
    157B  THR*     1.3    65.3    +      -       -      +
    159B  THR*     4.1    10.5    -      -       -      -
    160B  LEU*     3.1    48.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 157 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134B  PHE*     3.6    35.0    -      -       +      +
    137B  ILE*     3.7    17.7    -      -       +      +
    138B  THR*     2.7    30.8    +      -       -      +
    141B  LEU*     3.4    17.9    -      -       -      +
    153B  LEU      2.8    25.8    +      -       -      -
    154B  ASP*     3.3     9.8    +      -       -      +
    156B  MSE      1.3    73.4    -      -       -      +
    158B  ARG*     1.3    57.6    +      -       -      +
    160B  LEU*     4.0     0.9    -      -       -      +
    161B  PHE*     3.0    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 158 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  ARG      5.0     0.2    +      -       -      -
    176A  ILE*     2.9    29.7    +      -       -      +
    177A  SER*     3.8    12.4    -      -       -      +
    178A  GLY      3.1    21.5    +      -       -      -
    179A  VAL*     3.9    14.8    -      -       +      -
    180A  PRO*     4.3    16.9    -      -       -      +
    130B  MSE      5.0     3.6    -      -       -      +
    134B  PHE*     3.7    25.0    -      -       +      -
    154B  ASP*     2.9    48.2    +      -       -      +
    155B  LEU*     3.6     7.6    -      -       -      +
    157B  THR*     1.3    75.3    -      -       -      +
    159B  THR*     1.3    53.1    +      -       -      +
    161B  PHE*     3.9     1.3    -      -       -      +
    162B  SER*     2.7    38.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 159 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  ILE*     3.7    22.2    -      -       +      +
    179A  VAL*     3.6     7.3    -      -       -      +
    187A  MSE      3.1    52.1    -      -       +      +
    191A  LEU*     4.0    14.8    -      -       +      -
    155B  LEU      2.7    21.4    +      -       -      -
    156B  MSE      3.7    13.2    -      -       -      -
    158B  ARG*     1.3    75.9    -      -       -      +
    160B  LEU*     1.3    54.3    +      -       +      +
    162B  SER      3.6     0.2    +      -       -      -
    163B  SER*     2.7    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 160 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191A  LEU*     3.9    25.4    -      -       +      -
    194A  GLN*     6.1     0.7    -      -       -      +
    201A  STE      3.7    19.3    -      -       +      -
     90B  LEU*     4.8     1.3    -      -       +      -
    137B  ILE*     5.5     0.2    -      -       +      -
    141B  LEU*     3.5    34.3    -      -       +      -
    156B  MSE      3.1    29.0    +      -       +      +
    157B  THR      4.3     0.9    -      -       -      +
    159B  THR*     1.3    74.1    -      -       +      +
    161B  PHE*     1.3    66.9    +      -       -      +
    163B  SER*     3.6     5.5    -      -       -      +
    164B  VAL*     3.0    28.9    +      -       -      +
    191B  LEU*     5.6     1.8    -      -       +      -
    192B  LEU*     4.5    11.4    -      -       +      +
    195B  VAL*     3.8    36.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 161 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  LEU*     3.9    17.0    -      -       +      -
    177A  SER*     3.8    25.1    -      -       -      -
    201A  STE      3.3    63.7    -      -       +      +
     97B  TYR*     3.5    40.6    -      +       -      -
    112B  PHE*     4.0     4.7    -      +       -      -
    134B  PHE*     3.9    21.3    -      +       +      -
    137B  ILE*     4.1     9.6    -      -       +      -
    157B  THR      3.0    18.8    +      -       -      +
    158B  ARG      3.9     2.7    -      -       -      +
    160B  LEU*     1.3    75.0    -      -       -      +
    162B  SER*     1.3    60.0    -      -       -      +
    164B  VAL*     3.2     3.6    +      -       +      -
    165B  HIS*     2.9    29.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 162 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  GLY*     3.3    18.6    -      -       -      -
    167A  ILE*     3.7    27.1    +      -       -      -
    170A  LEU*     3.7    27.3    -      -       -      +
    177A  SER      4.1     1.4    +      -       -      -
    178A  GLY*     4.1    10.0    -      -       -      -
    179A  VAL*     4.3     2.6    +      -       -      +
    158B  ARG      2.7    24.0    +      -       -      -
    159B  THR*     3.7     4.0    -      -       -      -
    161B  PHE*     1.3    77.1    -      -       -      +
    163B  SER*     1.3    55.6    +      -       -      +
    165B  HIS*     3.7     1.4    -      -       -      +
    166B  GLY      3.0    22.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 163 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  SER*     3.5    31.6    -      -       -      -
    167A  ILE*     3.5     4.3    -      -       -      +
    191A  LEU*     3.5    26.2    -      -       -      +
    159B  THR      2.7    22.5    +      -       -      -
    160B  LEU*     3.6     9.4    -      -       -      -
    161B  PHE      3.2     0.4    -      -       -      -
    162B  SER*     1.3    73.1    -      -       -      +
    164B  VAL*     1.3    66.9    +      -       -      +
    166B  GLY      3.3     0.9    +      -       -      -
    167B  ILE*     3.1    27.0    +      -       -      +
    191B  LEU*     3.9    11.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 164 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  STE      4.0    15.7    -      -       +      -
     94B  SER*     3.6    38.4    -      -       -      +
     97B  TYR*     4.2    20.0    -      -       +      -
    160B  LEU      3.0    21.5    +      -       -      +
    161B  PHE*     3.7     3.8    -      -       +      +
    163B  SER*     1.3    75.1    -      -       -      +
    165B  HIS*     1.3    58.8    +      -       -      +
    167B  ILE*     3.2     8.9    +      -       -      +
    168B  VAL*     3.0    28.4    +      -       +      +
    188B  ILE*     4.3    18.2    -      -       +      -
    191B  LEU*     4.7     6.3    -      -       +      -
    192B  LEU*     4.2    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 165 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  GLY*     5.3     1.8    -      -       -      -
    169A  LEU*     5.1     2.6    -      -       +      +
    170A  LEU*     3.8    28.4    -      -       +      +
     97B  TYR*     2.7    31.1    +      -       -      +
    108B  TRP*     3.7    17.2    -      +       -      -
    109B  ARG*     4.9     1.9    +      -       -      -
    112B  PHE*     3.3    42.6    -      +       -      -
    161B  PHE*     2.9    25.8    +      -       +      +
    162B  SER      3.7     5.4    -      -       -      +
    164B  VAL*     1.3    75.7    -      -       -      +
    166B  GLY*     1.3    52.8    +      -       -      +
    168B  VAL*     3.7     0.6    -      -       -      +
    169B  LEU*     2.8    62.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 166 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162A  SER*     3.3    23.2    -      -       -      -
    165A  HIS*     5.3     1.3    -      -       -      -
    166A  GLY*     3.8    13.7    -      -       -      -
    162B  SER      3.0    11.1    +      -       -      -
    163B  SER      3.3     1.1    +      -       -      -
    164B  VAL      3.2     0.4    -      -       -      -
    165B  HIS*     1.3    74.2    -      -       -      +
    167B  ILE*     1.3    64.2    -      -       -      +
    169B  LEU*     4.4     6.3    -      -       -      -
    170B  LEU*     3.0    33.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 167 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  THR*     3.8    33.4    -      -       +      +
    162A  SER*     3.6    11.9    +      -       -      -
    163A  SER*     3.8     3.1    -      -       -      +
    163B  SER      3.1    11.6    +      -       -      +
    164B  VAL*     3.4    10.5    -      -       -      +
    166B  GLY*     1.3    75.3    -      -       -      +
    168B  VAL*     1.3    58.8    +      -       -      +
    170B  LEU*     4.6     0.5    -      -       -      +
    171B  GLY      3.0    22.7    +      -       -      -
    179B  VAL*     4.5    11.8    -      -       +      +
    184B  LEU*     3.3    28.0    -      -       +      +
    187B  MSE      4.4     7.2    -      -       +      +
    188B  ILE*     4.0    24.2    -      -       +      +
    191B  LEU*     3.5    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 168 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  TYR*     4.3    16.6    -      -       +      -
     98B  LEU*     3.9    28.3    -      -       +      -
    101B  ALA*     3.7    16.8    -      -       +      -
    108B  TRP*     4.0     8.3    -      -       +      -
    164B  VAL*     3.0    20.5    +      -       +      +
    165B  HIS      3.9     3.6    -      -       -      +
    167B  ILE*     1.3    72.7    -      -       +      +
    169B  LEU*     1.3    56.1    +      -       -      +
    172B  LEU*     2.8    65.2    +      -       +      +
    184B  LEU*     4.7     4.5    -      -       +      -
    188B  ILE*     4.1    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 169 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  HIS*     5.2     2.9    -      -       +      +
    169A  LEU*     3.4    33.4    -      -       +      -
    108B  TRP*     4.1    19.7    -      -       +      -
    109B  ARG*     3.6    26.7    -      -       -      +
    165B  HIS*     2.8    40.3    +      -       +      +
    166B  GLY*     3.9     3.8    -      -       -      +
    168B  VAL*     1.3    72.3    -      -       -      +
    170B  LEU*     1.3    70.3    +      -       +      +
    172B  LEU*     4.1     0.5    -      -       -      +
    173B  GLU*     3.0    63.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  PHE*     3.8    20.6    -      -       +      -
    161A  PHE*     3.9    15.9    -      -       +      -
    162A  SER*     3.7    23.3    -      -       -      +
    165A  HIS*     3.7    33.4    -      -       +      +
    166B  GLY      3.0    13.7    +      -       -      +
    169B  LEU*     1.3    83.5    -      -       +      +
    171B  GLY*     1.3    61.4    +      -       -      +
    173B  GLU*     4.5     5.6    -      -       -      +
    174B  ASN*     3.4     2.1    +      -       -      -
    175B  ARG*     3.2    43.0    +      -       +      +
    177B  SER*     3.8    16.4    -      -       -      +
    178B  GLY*     4.0    17.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  ILE      3.0    20.1    +      -       -      -
    168B  VAL      3.7     0.2    -      -       -      -
    169B  LEU      3.2     0.2    -      -       -      -
    170B  LEU*     1.3    77.4    -      -       -      +
    172B  LEU*     1.3    56.9    +      -       -      +
    174B  ASN*     3.2    27.5    +      -       -      -
    178B  GLY*     4.6     1.4    -      -       -      -
    179B  VAL      3.5    24.5    -      -       -      +
    180B  PRO*     5.8     0.2    -      -       -      +
    181B  GLY*     4.7     3.5    +      -       -      -
    184B  LEU*     3.8    15.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ARG*     3.9    11.1    +      -       -      -
     98B  LEU*     4.1     2.2    -      -       +      +
    101B  ALA*     3.4    44.4    -      -       +      +
    102B  ARG*     3.7    35.0    -      -       +      +
    108B  TRP*     4.2    12.3    -      -       +      -
    168B  VAL*     2.8    32.4    +      -       +      +
    169B  LEU      4.3     1.6    -      -       -      +
    171B  GLY*     1.3    70.8    -      -       -      +
    173B  GLU*     1.3    61.2    +      -       +      +
    174B  ASN*     3.2     8.1    +      -       -      +
    181B  GLY*     5.9     0.4    -      -       -      -
    184B  LEU*     3.8    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  PHE*     4.8     6.5    -      -       -      +
    117A  ARG*     3.3    22.2    +      -       -      +
    108B  TRP*     6.2     2.2    -      -       +      -
    109B  ARG*     4.5    13.5    +      -       -      -
    169B  LEU*     3.0    45.8    +      -       +      +
    170B  LEU*     4.5     3.8    -      -       -      +
    172B  LEU*     1.3    75.2    -      -       +      +
    174B  ASN*     1.3    67.8    -      -       -      +
    175B  ARG*     3.3    34.8    +      -       +      +
----------------------------------------------------------
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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