Contacts of the helix formed by residues 180 - 206 (chain A) in PDB entry 2OEV


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 180 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  PRO*     4.3    15.5    -      -       -      -
    176A  THR      3.7     8.6    +      -       -      -
    177A  VAL*     3.6     8.1    +      -       -      -
    178A  ASP      3.3     3.4    -      -       -      -
    179A  ILE*     1.3    78.1    -      -       -      +
    181A  PRO*     1.4    63.6    -      -       -      +
    182A  ASP*     2.7    10.7    +      -       -      +
    183A  THR*     2.6    44.7    +      -       -      -
    184A  VAL*     3.4     4.9    +      -       -      -
    236A  THR*     5.0     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164A  LYS*     3.5    54.0    +      -       +      +
    167A  VAL*     3.6    16.6    -      -       +      -
    168A  LEU*     3.8    28.9    -      -       +      -
    175A  PRO*     5.0     4.0    -      -       +      -
    179A  ILE      3.8     0.2    -      -       -      -
    180A  SER*     1.4    85.5    -      -       -      +
    182A  ASP*     1.3    56.8    +      -       -      +
    184A  VAL*     5.2     0.2    -      -       +      -
    185A  GLY*     3.1    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  SER*     2.7    12.7    +      -       -      +
    181A  PRO*     1.3    74.5    -      -       -      +
    183A  THR*     1.3    55.7    +      -       -      +
    185A  GLY      4.4     0.5    -      -       -      -
    186A  THR*     2.7    29.6    +      -       -      -
    230A  GLN*     4.2     5.9    -      -       -      +
    234A  LYS*     3.6    44.6    +      -       -      +
    236A  THR*     3.8    10.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  PHE*     4.8    12.3    -      -       +      -
    177A  VAL*     2.6    22.3    +      -       +      +
    178A  ASP*     3.3    32.5    -      -       +      +
    180A  SER*     2.6    17.7    +      -       -      -
    182A  ASP*     1.3    68.1    -      -       -      +
    184A  VAL*     1.3    56.3    +      -       -      -
    186A  THR*     2.8    27.0    +      -       -      -
    187A  LEU*     3.1    16.9    +      -       +      +
    236A  THR*     3.2    34.8    +      -       +      +
    237A  LEU      5.4     1.3    -      -       -      +
    238A  PRO*     6.5     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  PHE*     4.3    13.0    -      -       +      -
    160A  PHE*     3.2    52.7    -      -       +      +
    163A  ILE*     3.8    17.9    -      -       +      -
    164A  LYS*     3.4    21.5    -      -       +      +
    178A  ASP      3.6    17.3    -      -       -      +
    179A  ILE*     4.5     0.4    -      -       -      -
    180A  SER      3.4     8.1    +      -       -      +
    183A  THR*     1.3    73.7    -      -       -      +
    185A  GLY*     1.3    57.1    +      -       -      +
    186A  THR      2.7    15.7    +      -       -      -
    187A  LEU*     2.8    18.7    +      -       +      +
    188A  SER*     2.8    14.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161A  LEU*     5.0     3.7    -      -       -      +
    164A  LYS*     4.4    20.0    -      -       -      -
    181A  PRO      3.1    19.5    +      -       -      -
    182A  ASP      4.5     0.4    -      -       -      -
    184A  VAL*     1.3    80.7    -      -       -      +
    186A  THR*     1.3    59.3    +      -       -      +
    188A  SER*     4.1    10.1    +      -       -      -
    189A  LEU*     3.7    17.2    +      -       -      +
    230A  GLN*     3.8     9.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  ASP*     2.7    21.0    +      -       -      -
    183A  THR      2.8    11.8    +      -       -      -
    184A  VAL      2.7     4.2    +      -       -      -
    185A  GLY*     1.3    74.5    -      -       -      +
    187A  LEU*     1.3    57.4    +      -       -      +
    189A  LEU*     3.0    17.4    +      -       -      +
    190A  ILE*     3.0    22.1    +      -       +      +
    227A  ALA*     3.5    28.5    -      -       -      +
    230A  GLN*     3.4    31.4    +      -       +      +
    231A  CYS*     3.6    17.7    -      -       -      -
    236A  THR*     4.5     6.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ILE*     5.2     5.6    -      -       +      -
      7A  VAL*     3.6    33.4    -      -       +      -
     99A  PHE*     4.4    16.8    -      -       +      -
    125A  PHE*     4.2    24.0    -      -       +      -
    160A  PHE*     3.8    20.6    -      -       +      -
    183A  THR*     3.1    15.5    +      -       +      +
    184A  VAL*     2.8    19.5    +      -       +      +
    186A  THR*     1.3    66.9    -      -       -      +
    188A  SER*     1.3    57.2    +      -       -      +
    189A  LEU      2.9     1.3    -      -       -      -
    190A  ILE*     2.6    40.5    +      -       +      +
    191A  MET*     2.9    18.9    +      -       +      +
    238A  PRO*     6.0     4.9    -      -       +      -
    241A  VAL*     6.1     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157A  SER*     3.0    53.5    +      -       -      +
    160A  PHE*     3.6     6.6    -      -       -      -
    161A  LEU*     3.5    32.5    -      -       -      +
    184A  VAL      2.8    18.2    +      -       -      -
    185A  GLY*     4.1     7.8    +      -       -      -
    187A  LEU*     1.3    72.6    -      -       -      +
    189A  LEU*     1.3    61.3    +      -       -      +
    192A  LEU*     3.3     6.1    +      -       -      +
    340A  SER*     4.8     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  GLY      3.7    11.2    -      -       -      +
    186A  THR*     3.0    14.1    +      -       -      +
    187A  LEU      2.8     1.4    +      -       -      -
    188A  SER*     1.3    79.8    +      -       -      +
    190A  ILE*     1.3    60.6    +      -       -      +
    192A  LEU*     3.7     6.9    -      -       +      +
    193A  ALA*     3.0    24.4    +      -       -      +
    223A  TYR*     3.6    41.0    -      -       +      +
    226A  ASP*     3.6    16.8    -      -       +      +
    227A  ALA*     3.5    33.2    -      -       +      +
    230A  GLN*     4.2    13.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ILE*     3.9    37.0    -      -       +      -
    186A  THR*     3.0    28.2    +      -       +      +
    187A  LEU*     2.6    32.3    +      -       +      +
    189A  LEU*     1.3    70.5    -      -       -      +
    191A  MET*     1.3    57.1    +      -       +      +
    193A  ALA*     2.9     7.5    +      -       -      +
    194A  GLN*     2.7    43.7    +      -       +      +
    224A  PHE*     5.1     0.9    -      -       +      -
    227A  ALA*     3.8     5.8    -      -       +      -
    231A  CYS*     5.6     0.4    -      -       -      -
    241A  VAL*     4.7    11.0    -      -       +      -
    245A  LEU*     3.6    42.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ILE*     4.4    11.0    -      -       +      +
      7A  VAL*     4.0    18.6    -      -       +      -
    132A  SER*     3.4    28.7    -      -       -      -
    153A  TYR*     3.9    21.3    -      -       -      +
    156A  ALA*     3.6    17.7    -      -       +      -
    157A  SER*     3.4    24.7    -      -       -      +
    160A  PHE*     3.9    21.5    -      -       +      -
    187A  LEU*     2.9    17.6    +      -       +      +
    190A  ILE*     1.3    75.4    -      -       -      +
    192A  LEU*     1.3    54.9    +      -       -      +
    194A  GLN*     2.6    44.3    +      -       -      +
    195A  ALA*     2.8    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154A  GLN*     5.5     0.4    -      -       -      +
    157A  SER*     3.3    10.8    -      -       -      +
    188A  SER      3.3    14.5    +      -       -      +
    189A  LEU*     3.7     9.9    -      -       +      +
    190A  ILE      3.3     0.2    -      -       -      -
    191A  MET*     1.3    79.2    -      -       -      +
    193A  ALA*     1.3    62.0    +      -       -      +
    195A  ALA*     3.3     7.6    +      -       -      +
    196A  GLN*     3.0    23.4    +      -       -      +
    223A  TYR*     3.2    50.5    -      -       +      +
    338A  VAL*     3.8    19.9    -      -       +      +
    339A  LYS*     4.0     3.8    -      -       -      +
    340A  SER*     3.1    40.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    189A  LEU      3.0    12.7    +      -       -      +
    190A  ILE*     2.9    13.3    +      -       -      +
    192A  LEU*     1.3    72.8    -      -       -      +
    194A  GLN*     1.3    62.5    +      -       -      +
    196A  GLN*     3.7     4.0    +      -       -      +
    197A  GLU*     3.1    15.9    +      -       -      +
    220A  ALA*     4.6     1.3    -      -       -      +
    223A  TYR*     3.3    36.8    -      -       +      +
    224A  PHE*     3.7    39.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     3.4    12.0    -      -       +      -
      5A  ILE*     2.6    60.9    +      -       -      +
    153A  TYR*     3.5    32.5    +      -       +      -
    190A  ILE*     2.7    15.2    +      -       +      +
    191A  MET*     2.6    27.3    +      -       -      +
    193A  ALA*     1.3    69.4    -      -       -      +
    195A  ALA*     1.3    66.7    +      -       -      +
    197A  GLU*     2.9    21.3    +      -       -      +
    198A  VAL*     3.5     4.0    +      -       -      +
    224A  PHE*     3.9    15.9    -      -       +      -
    248A  LYS*     3.2    19.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  ALA*     4.4     4.9    -      -       -      +
    153A  TYR*     3.2    29.9    -      -       +      -
    154A  GLN*     4.0    15.7    -      -       -      +
    191A  MET      2.8     9.9    +      -       -      +
    192A  LEU*     3.4     9.6    -      -       -      +
    194A  GLN*     1.3    68.8    -      -       -      +
    196A  GLN*     1.3    56.2    +      -       -      +
    197A  GLU      2.6    13.2    +      -       -      -
    198A  VAL*     2.8    24.5    +      -       -      +
    199A  PHE*     3.6     7.8    +      -       -      -
    338A  VAL*     3.8    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192A  LEU      3.0    13.8    +      -       -      +
    193A  ALA      3.7     5.4    -      -       -      +
    195A  ALA*     1.3    77.3    -      -       -      +
    197A  GLU*     1.3    63.2    +      -       -      +
    198A  VAL      3.3     0.2    -      -       -      -
    199A  PHE*     3.6     8.3    +      -       -      +
    200A  PHE*     3.3    14.7    +      -       -      +
    216A  LEU*     2.9    34.8    +      -       -      +
    219A  GLN*     4.0     7.3    -      -       -      +
    220A  ALA*     3.5    24.6    -      -       +      +
    223A  TYR*     4.1    10.5    -      -       +      -
    335A  ALA      3.2    21.4    +      -       -      -
    337A  LEU*     3.3    15.6    +      -       -      +
    338A  VAL*     3.1    29.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     3.2    31.5    -      -       +      -
    193A  ALA      3.1    12.7    +      -       -      +
    194A  GLN*     2.9    14.2    +      -       -      +
    195A  ALA      2.6     6.5    +      -       -      -
    196A  GLN*     1.3    73.6    -      -       -      +
    198A  VAL*     1.3    50.7    +      -       -      +
    200A  PHE*     2.9    37.5    +      -       +      +
    201A  LEU*     3.0    14.6    +      -       +      +
    220A  ALA*     4.5     4.3    -      -       -      -
    224A  PHE*     4.3     6.7    -      -       +      -
    248A  LYS*     3.3    32.9    +      -       -      +
    252A  MET*     3.2    40.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     5.0     6.3    -      -       +      -
    140A  LEU*     4.2    20.0    -      -       +      -
    146A  LEU*     3.9    38.1    -      -       +      -
    149A  ALA*     4.3    13.5    -      -       +      -
    150A  ALA*     4.5    17.0    -      -       +      +
    153A  TYR*     4.8     6.3    -      -       +      -
    194A  GLN      4.0     7.2    -      -       -      +
    195A  ALA*     2.8    13.9    +      -       -      +
    197A  GLU*     1.3    71.9    -      -       -      +
    199A  PHE*     1.3    62.0    +      -       +      +
    200A  PHE      2.9     1.3    -      -       -      -
    201A  LEU*     2.3    35.8    +      -       +      +
    202A  LYS*     2.7    14.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  ALA*     3.5    31.2    -      -       +      -
    154A  GLN*     4.3    15.0    -      -       -      -
    195A  ALA      3.8    14.6    -      -       -      -
    196A  GLN*     3.6    11.9    +      -       -      +
    197A  GLU      3.4     0.6    -      -       -      -
    198A  VAL*     1.3    74.4    -      -       +      +
    200A  PHE*     1.3    63.2    +      -       -      +
    202A  LYS*     3.9    11.8    -      -       +      +
    203A  ALA*     3.1    26.9    +      -       -      +
    216A  LEU*     3.5     5.0    -      -       +      +
    337A  LEU*     3.3    60.6    -      -       +      -
    338A  VAL*     5.3     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  GLN      3.3     7.4    +      -       -      +
    197A  GLU*     2.9    17.7    +      -       -      +
    199A  PHE*     1.3    77.8    -      -       -      +
    201A  LEU*     1.3    82.6    +      -       +      +
    203A  ALA*     3.7     2.5    -      -       -      +
    204A  THR*     3.0    41.8    +      -       +      -
    213A  ILE*     3.5    30.9    -      -       +      +
    216A  LEU*     4.0    12.2    -      -       -      +
    217A  ALA*     3.7    27.6    -      -       +      +
    220A  ALA*     5.4     0.4    -      -       +      -
    252A  MET*     4.1    17.3    -      -       +      -
    255A  ASN*     3.2    44.0    -      -       +      -
    259A  HIS*     4.3     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     4.8    18.4    -      -       +      -
    140A  LEU*     5.2    21.8    -      -       +      +
    146A  LEU*     5.2     5.4    -      -       +      -
    197A  GLU*     3.0    21.1    +      -       -      +
    198A  VAL*     2.3    36.5    +      -       +      +
    200A  PHE*     1.3    86.9    -      -       +      +
    202A  LYS*     1.3    64.2    +      -       -      +
    204A  THR*     3.2    18.4    -      -       +      +
    205A  ARG*     3.0    19.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  ASP*     4.6    20.1    +      -       -      +
    146A  LEU*     4.8    22.2    -      -       +      +
    147A  LYS*     5.2    15.1    -      -       +      +
    198A  VAL*     2.7    17.2    +      -       +      +
    199A  PHE*     3.9    13.0    -      -       +      +
    201A  LEU*     1.3    66.0    -      -       -      +
    203A  ALA*     1.3    55.8    +      -       -      +
    204A  THR      2.3    18.4    +      -       -      -
    205A  ARG*     2.3    25.5    +      -       +      +
    206A  ASP*     3.1    33.1    +      -       -      +
    208A  MET*     6.2     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  PHE      3.1    19.1    +      -       -      +
    200A  PHE*     3.7     4.5    -      -       -      +
    202A  LYS*     1.3    77.2    -      -       -      +
    204A  THR*     1.3    56.1    +      -       -      +
    206A  ASP*     4.1     1.1    -      -       -      +
    207A  LYS      3.7     0.3    +      -       -      -
    208A  MET*     3.0    61.7    +      -       +      +
    212A  ILE*     5.0     1.8    -      -       +      -
    213A  ILE*     3.6    14.7    -      -       +      +
    216A  LEU*     3.8    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  PHE*     3.0    30.3    +      -       +      -
    201A  LEU*     3.2    23.3    -      -       +      +
    202A  LYS      2.3    12.9    +      -       -      -
    203A  ALA*     1.3    69.2    -      -       -      +
    205A  ARG*     1.3    66.0    -      -       +      +
    207A  LYS*     3.2    17.2    +      -       -      +
    213A  ILE*     3.7    27.4    -      -       -      +
    259A  HIS*     4.0     6.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  LEU      4.2     5.7    +      -       -      -
    141A  ASP*     2.7    60.7    +      -       -      +
    143A  ASP*     4.4    14.8    +      -       -      +
    146A  LEU*     4.5    13.5    -      -       -      -
    201A  LEU      3.0    12.7    +      -       -      +
    202A  LYS*     2.3    25.3    +      -       -      +
    204A  THR*     1.3    65.6    -      -       +      +
    206A  ASP*     1.3    64.3    +      -       -      +
    207A  LYS*     2.9    23.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  ASP*     4.3    11.1    -      -       -      +
    202A  LYS*     3.1    35.3    +      -       -      +
    203A  ALA*     4.0     0.4    -      -       -      -
    205A  ARG*     1.3    82.5    -      -       -      +
    207A  LYS*     1.3    68.9    +      -       -      +
    208A  MET*     2.8    23.4    +      -       +      +
----------------------------------------------------------
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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