Contacts of the helix formed by residues 228 - 260 (chain A) in PDB entry 1O86


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 228 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  THR*     3.1     8.0    +      -       -      +
    227A  PRO*     1.3    77.1    -      -       -      +
    229A  LEU*     1.3    64.8    +      -       -      +
    230A  GLU      3.4     2.9    -      -       -      -
    231A  GLN*     3.1    20.4    +      -       -      +
    232A  ASP*     2.8    47.7    +      -       -      -
    235A  ARG*     4.9     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  ARG*     3.9    35.7    -      -       +      +
    224A  TYR*     3.8    46.0    -      -       +      -
    226A  THR*     2.9    24.5    +      -       -      +
    227A  PRO      3.2     1.8    -      -       -      -
    228A  SER*     1.3    75.6    +      -       -      +
    230A  GLU*     1.3    66.2    +      -       +      +
    232A  ASP*     3.1     6.3    +      -       -      +
    233A  LEU*     2.9    59.4    +      -       +      +
    469A  TRP*     5.0     3.8    -      -       +      -
    521A  ILE*     5.5     0.4    -      -       +      -
    525A  VAL*     5.4     0.7    -      -       +      -
    587A  MET*     4.6    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  ARG*     3.1    42.5    +      -       -      +
    227A  PRO      4.9     1.4    +      -       -      -
    228A  SER      3.4     0.8    -      -       -      -
    229A  LEU*     1.3    79.0    -      -       +      +
    231A  GLN*     1.3    64.9    +      -       +      +
    233A  LEU*     4.0     6.4    -      -       -      +
    234A  GLU*     3.1    23.6    +      -       -      +
    462A  TYR*     4.5     2.4    +      -       -      -
    466A  GLN*     5.6     2.1    +      -       -      +
    469A  TRP*     3.8    28.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  SER*     3.1    20.0    +      -       -      +
    230A  GLU*     1.3    75.0    -      -       +      +
    232A  ASP*     1.3    66.9    +      -       -      +
    234A  GLU*     3.2     7.4    +      -       -      +
    235A  ARG*     3.0    51.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  THR*     3.6    12.8    -      -       -      +
    228A  SER*     2.8    38.7    +      -       -      +
    229A  LEU*     3.1     8.0    +      -       -      +
    231A  GLN*     1.3    77.6    -      -       -      +
    233A  LEU*     1.3    62.5    +      -       -      +
    235A  ARG*     2.5    36.5    +      -       -      +
    236A  LEU*     3.1    29.7    +      -       +      +
    574A  TRP*     5.9     0.5    -      -       -      -
    587A  MET*     4.3    19.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  LEU*     2.9    48.0    +      -       +      +
    230A  GLU*     4.0     3.8    -      -       -      +
    232A  ASP*     1.3    72.3    -      -       -      +
    234A  GLU*     1.3    60.8    +      -       -      +
    236A  LEU*     3.3    14.9    +      -       +      +
    237A  PHE*     2.9    28.8    +      -       -      +
    462A  TYR*     3.7    15.9    -      -       +      -
    466A  GLN*     5.5     0.4    -      -       -      +
    469A  TRP*     4.4     9.2    -      -       +      -
    521A  ILE*     3.5    34.8    -      -       +      -
    524A  PHE*     3.7    25.6    -      -       +      -
    525A  VAL*     4.0    16.6    -      -       +      -
    587A  MET*     4.2     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  GLU      3.1    18.4    +      -       -      +
    231A  GLN*     3.2     8.3    +      -       -      +
    233A  LEU*     1.3    78.3    -      -       -      +
    235A  ARG*     1.3    63.8    +      -       +      +
    237A  PHE*     3.3     3.5    +      -       -      +
    238A  GLN*     2.8    62.5    +      -       +      +
    462A  TYR*     2.6    37.6    +      -       -      +
    492A  TYR*     4.3     7.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  SER*     4.6     4.0    +      -       -      -
    231A  GLN*     3.0    39.8    +      -       -      +
    232A  ASP*     2.5    43.6    +      -       -      +
    234A  GLU*     1.3    77.6    -      -       +      +
    236A  LEU*     1.3    64.2    +      -       +      +
    238A  GLN*     3.3     8.1    +      -       -      +
    239A  GLU*     3.1    34.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  ASP*     3.1    18.0    +      -       +      +
    233A  LEU*     3.6    26.2    -      -       +      +
    234A  GLU      3.3     0.2    -      -       -      -
    235A  ARG*     1.3    77.9    -      -       +      +
    237A  PHE*     1.3    62.8    +      -       -      +
    239A  GLU*     3.2    21.4    +      -       -      +
    240A  LEU*     3.4    18.1    +      -       -      +
    524A  PHE*     4.1    13.7    -      -       +      -
    525A  VAL*     6.3     0.2    -      -       -      -
    528A  ILE*     4.4    16.4    -      -       +      -
    587A  MET*     4.0    28.9    -      -       +      +
    588A  SER*     4.0    12.8    -      -       -      +
    589A  ALA*     3.7    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  LEU      2.9    17.1    +      -       -      +
    234A  GLU*     3.6     5.6    -      -       -      +
    236A  LEU*     1.3    77.4    -      -       -      +
    238A  GLN*     1.3    80.3    +      -       -      +
    240A  LEU*     3.1    13.0    +      -       -      +
    241A  GLN*     3.1    46.5    +      -       +      +
    244A  TYR*     6.3     0.2    -      -       +      -
    458A  ILE*     4.0    18.8    -      -       +      -
    459A  PRO*     3.7    28.0    -      -       +      -
    462A  TYR*     4.1    25.6    -      +       +      -
    491A  LYS      5.5     0.7    -      -       -      -
    492A  TYR*     3.4    44.0    -      +       -      -
    524A  PHE*     3.8    11.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLN 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  GLU*     2.8    43.7    +      -       +      +
    235A  ARG*     3.6     8.1    -      -       -      +
    236A  LEU      3.3     0.2    -      -       -      -
    237A  PHE*     1.3    96.2    -      -       -      +
    239A  GLU*     1.3    62.5    +      -       +      +
    241A  GLN*     3.3    30.9    -      -       -      +
    242A  PRO*     3.6     5.0    -      -       -      +
    492A  TYR*     5.6     1.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  ARG*     3.1    23.3    +      -       +      +
    236A  LEU*     3.6    16.7    -      -       -      +
    237A  PHE      3.2     0.4    -      -       -      -
    238A  GLN*     1.3    77.8    -      -       +      +
    240A  LEU*     1.3    59.4    +      -       -      +
    241A  GLN      3.3     1.1    -      -       -      -
    242A  PRO*     3.6    11.4    -      -       -      +
    588A  SER*     6.0     0.2    -      -       -      -
    589A  ALA*     4.1    23.7    +      -       +      +
    590A  SER*     5.2     4.0    +      -       -      -
    593A  LEU*     3.8    28.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  LEU      3.4    13.3    +      -       -      +
    237A  PHE*     3.1     9.4    +      -       -      +
    239A  GLU*     1.3    77.7    -      -       -      +
    241A  GLN*     1.3    59.3    +      -       -      +
    242A  PRO      3.5     1.8    -      -       -      -
    243A  LEU*     3.4     6.7    +      -       +      +
    244A  TYR*     2.9    29.9    +      -       +      +
    455A  ILE*     3.6    22.4    -      -       +      -
    458A  ILE*     4.4    22.0    -      -       +      -
    528A  ILE*     3.2    35.4    -      -       +      -
    589A  ALA*     3.8    11.9    -      -       +      -
    592A  MET*     3.4    29.6    -      -       +      -
    593A  LEU*     4.2    19.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  PHE*     3.1    47.2    +      -       +      +
    238A  GLN*     3.3    28.8    +      -       -      +
    240A  LEU*     1.3    75.3    -      -       -      +
    242A  PRO*     1.3    69.7    -      -       +      +
    244A  TYR*     4.4    18.8    -      -       -      +
    245A  LEU*     2.8    60.6    +      -       +      +
    491A  LYS      5.8     0.2    -      -       -      +
    492A  TYR      4.7     2.2    +      -       -      -
    616A  TRP*     6.0     0.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  GLN      3.6     5.8    -      -       -      +
    239A  GLU*     3.6    15.7    -      -       -      +
    240A  LEU      3.7     0.4    -      -       -      -
    241A  GLN*     1.3    94.1    -      -       +      +
    243A  LEU*     1.3    61.1    +      -       -      +
    245A  LEU*     4.1     5.7    -      -       +      +
    246A  ASN*     2.8    36.8    +      -       -      +
    600A  LEU*     4.3     5.4    -      -       +      -
    604A  ARG*     4.1    23.1    -      -       -      +
    614A  LEU*     6.2     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239A  GLU      5.3     0.2    +      -       -      -
    240A  LEU*     3.4    11.1    +      -       +      +
    241A  GLN      3.2     0.6    -      -       -      -
    242A  PRO*     1.3    77.7    -      -       -      +
    244A  TYR*     1.3    66.6    +      -       -      +
    246A  ASN*     3.4     2.6    +      -       -      +
    247A  LEU*     3.0    21.6    +      -       +      +
    455A  ILE*     3.5    37.2    -      -       +      -
    592A  MET      4.9     0.7    -      -       -      +
    593A  LEU*     4.3    25.8    -      -       +      +
    596A  PHE*     3.6    26.7    -      -       +      +
    599A  LEU*     5.0     4.9    -      -       +      -
    600A  LEU*     3.9    42.5    -      -       +      +
    603A  LEU*     4.3    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  PHE*     6.3     0.4    -      -       +      -
    240A  LEU*     2.9    18.7    +      -       +      +
    241A  GLN*     3.9    15.9    -      -       -      +
    243A  LEU*     1.3    76.6    -      -       -      +
    245A  LEU*     1.3    64.5    +      -       +      +
    247A  LEU*     3.1     3.7    +      -       +      +
    248A  HIS*     2.8    34.9    +      -       +      +
    283A  TRP*     3.4    37.6    -      +       -      -
    455A  ILE*     3.8    31.6    -      -       +      +
    456A  ALA*     3.9    10.9    +      -       -      -
    458A  ILE*     5.9     1.3    -      -       +      -
    459A  PRO*     3.7    25.5    -      -       +      +
    492A  TYR      3.7    16.8    -      -       -      -
    493A  GLN*     2.6    36.1    +      -       -      +
    616A  TRP*     4.2     8.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241A  GLN*     2.8    52.4    +      -       +      +
    242A  PRO*     4.1     6.1    -      -       +      +
    244A  TYR*     1.3    77.7    -      -       +      +
    246A  ASN*     1.3    56.6    +      -       -      +
    248A  HIS*     3.5     5.3    -      -       -      +
    249A  ALA*     3.1    28.8    +      -       -      +
    614A  LEU*     3.7    27.3    -      -       +      +
    615A  GLY*     4.5    10.6    +      -       -      +
    616A  TRP*     3.7    36.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  PRO*     2.8    31.6    +      -       -      +
    243A  LEU*     3.8     4.7    -      -       -      +
    244A  TYR      3.2     0.2    -      -       -      -
    245A  LEU*     1.3    73.4    -      -       -      +
    247A  LEU*     1.3    66.0    +      -       -      +
    249A  ALA      3.4     0.3    +      -       -      -
    250A  TYR*     3.1    14.2    +      -       -      +
    600A  LEU*     4.3     3.2    -      -       +      +
    603A  LEU*     4.0    16.7    -      -       +      +
    604A  ARG*     3.9    38.3    -      -       -      +
    607A  ASN*     2.9    41.2    +      -       -      +
    614A  LEU*     3.8    24.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  LEU*     3.0    17.7    +      -       +      +
    244A  TYR*     3.6     6.1    -      -       +      +
    246A  ASN*     1.3    77.3    -      -       -      +
    248A  HIS*     1.3    57.2    +      -       -      +
    250A  TYR*     3.3     4.0    +      -       +      +
    251A  VAL*     2.9    37.7    +      -       +      +
    283A  TRP*     4.2    21.5    -      -       +      -
    448A  MET*     3.6    36.1    -      -       +      -
    451A  ALA*     3.7    32.3    -      -       +      +
    452A  LEU*     4.2     9.4    -      -       +      +
    455A  ILE*     3.9    18.4    -      -       +      -
    456A  ALA*     4.1     7.4    -      -       +      +
    603A  LEU*     3.9    13.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244A  TYR*     2.8    30.2    +      -       +      +
    245A  LEU*     3.5     9.6    -      -       -      +
    247A  LEU*     1.3    77.1    -      -       -      +
    249A  ALA*     1.3    58.0    +      -       +      +
    251A  VAL*     3.5     0.3    +      -       -      +
    252A  ARG*     2.9    53.6    +      -       -      +
    268A  GLY      4.1     2.6    +      -       -      -
    270A  ILE*     3.5    28.3    -      -       +      +
    283A  TRP*     4.1    12.4    -      -       -      -
    493A  GLN      3.4    17.1    +      -       -      -
    494A  GLY      3.0    27.8    +      -       -      -
    495A  LEU*     5.1     0.4    -      -       +      -
    615A  GLY      5.0     2.2    -      -       -      -
    616A  TRP*     3.4    30.4    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  LEU      3.1    17.0    +      -       -      +
    246A  ASN      3.9     2.5    -      -       -      +
    248A  HIS*     1.3    75.4    -      -       +      +
    250A  TYR*     1.3    66.1    +      -       -      +
    252A  ARG*     3.4    29.9    +      -       -      +
    253A  ARG*     3.0    22.9    +      -       -      +
    266A  LEU*     6.0     0.2    -      -       -      +
    607A  ASN*     4.1     6.3    -      -       -      +
    612A  GLU*     4.2    15.7    -      -       +      +
    614A  LEU*     3.6    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  ASN      3.1    18.1    +      -       -      +
    247A  LEU*     3.3     3.3    +      -       +      +
    249A  ALA*     1.3    77.2    -      -       -      +
    251A  VAL*     1.3    68.1    +      -       +      +
    253A  ARG*     3.2    11.0    +      -       +      +
    254A  ALA*     3.1    19.9    +      -       +      +
    257A  ARG*     5.4    12.5    +      -       -      -
    290A  VAL*     2.7    41.5    +      -       +      -
    291A  VAL      3.8     1.9    +      -       -      -
    292A  PRO*     3.5    17.2    -      -       -      +
    448A  MET*     3.5    29.2    -      -       +      -
    602A  TRP*     3.6    22.9    -      +       -      -
    603A  LEU*     3.7    10.5    -      -       +      -
    606A  GLU*     3.7    29.4    -      -       +      -
    607A  ASN*     3.6    13.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  LEU*     2.9    26.2    +      -       +      +
    248A  HIS      3.9     1.3    -      -       -      +
    250A  TYR*     1.3    75.7    -      -       +      +
    252A  ARG*     1.3    66.9    +      -       -      +
    254A  ALA*     3.1     2.6    +      -       -      +
    255A  LEU*     2.9    35.5    +      -       +      +
    270A  ILE*     4.7     1.8    -      -       +      -
    275A  LEU*     4.2     3.6    -      -       +      -
    283A  TRP*     3.6    33.2    -      -       +      -
    286A  ILE*     3.8    26.5    -      -       +      -
    290A  VAL*     4.4    16.2    -      -       +      -
    452A  LEU*     4.0    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248A  HIS*     2.9    30.5    +      -       -      +
    249A  ALA*     3.6    24.0    +      -       -      +
    250A  TYR      3.3     0.2    -      -       -      -
    251A  VAL*     1.3    75.3    -      -       -      +
    253A  ARG*     1.3    58.0    +      -       -      +
    255A  LEU*     3.3     5.3    +      -       -      +
    256A  HIS*     2.9    27.0    +      -       -      +
    264A  ILE*     3.5    19.8    -      -       +      +
    265A  ASN      3.4    17.7    -      -       -      +
    266A  LEU*     3.1    26.0    +      -       +      +
    267A  GLU      3.9     0.2    -      -       -      -
    268A  GLY      2.9    26.2    +      -       -      +
    269A  PRO      5.3     0.9    -      -       -      +
    270A  ILE*     3.8    23.3    -      -       +      +
    612A  GLU*     4.9     3.6    +      -       -      -
    613A  LYS      2.8    28.5    +      -       -      +
    614A  LEU*     4.5     1.0    -      -       -      +
    615A  GLY      2.9    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249A  ALA      3.0     9.4    +      -       -      +
    250A  TYR*     3.4    14.4    -      -       +      +
    252A  ARG*     1.3    77.2    -      -       -      +
    254A  ALA*     1.3    62.0    +      -       -      +
    256A  HIS*     3.2    16.9    +      -       -      +
    257A  ARG*     3.0    38.8    +      -       -      +
    266A  LEU*     3.5    39.2    -      -       -      +
    610A  HIS*     3.7    33.0    +      -       +      +
    611A  GLY      5.1     1.6    +      -       -      -
    612A  GLU*     2.5    47.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  TYR*     3.1    12.4    +      -       +      +
    251A  VAL      3.1     3.9    +      -       -      +
    253A  ARG*     1.3    76.6    -      -       -      +
    255A  LEU*     1.3    62.2    +      -       -      +
    257A  ARG*     3.3    27.2    +      -       -      +
    258A  HIS*     3.1    21.7    +      -       -      +
    289A  LEU*     3.4    27.2    -      -       +      +
    290A  VAL*     3.5    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  VAL*     2.9    34.3    +      -       +      +
    252A  ARG*     3.7     5.6    -      -       -      +
    253A  ARG      3.2     0.2    -      -       -      -
    254A  ALA*     1.3    74.9    -      -       +      +
    256A  HIS*     1.3    57.9    +      -       -      +
    258A  HIS*     4.4     1.1    -      -       -      +
    259A  TYR*     2.7    65.0    +      -       +      +
    264A  ILE*     3.8    14.6    -      -       +      -
    270A  ILE*     3.5    33.9    -      -       +      -
    274A  LEU*     3.9    25.4    -      -       +      +
    275A  LEU*     4.3     4.5    -      -       +      -
    286A  ILE*     4.5     6.5    -      -       +      -
    289A  LEU*     4.3    15.3    -      -       +      -
    290A  VAL*     6.0     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  ARG      2.9    13.9    +      -       -      +
    253A  ARG*     3.2    19.2    +      -       -      +
    255A  LEU*     1.3    76.6    -      -       -      +
    257A  ARG*     1.3    66.2    +      -       -      +
    260A  GLY*     3.1    23.0    +      -       -      -
    261A  ALA*     3.3    34.5    +      -       +      +
    264A  ILE*     3.4    39.0    -      -       +      +
    266A  LEU*     3.6    37.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  TYR*     5.4    12.1    +      -       -      -
    253A  ARG*     3.0    27.1    +      -       -      +
    254A  ALA*     3.3    30.2    +      -       -      +
    256A  HIS*     1.3    83.1    +      -       -      +
    258A  HIS*     1.3    61.1    +      -       -      +
    260A  GLY*     4.5     1.7    +      -       -      -
    289A  LEU      3.2    25.5    +      -       -      -
    290A  VAL*     4.8     3.6    -      -       -      +
    291A  VAL      5.8     0.8    +      -       -      -
    606A  GLU*     5.8     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173A  ARG*     3.5    38.6    +      -       +      +
    254A  ALA      3.1    14.8    +      -       -      +
    255A  LEU*     3.2     2.6    +      -       -      +
    257A  ARG*     1.3    79.3    -      -       -      +
    259A  TYR*     1.3    95.9    +      +       +      +
    260A  GLY      3.7     0.2    +      -       -      -
    289A  LEU*     3.9    25.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173A  ARG*     3.3    50.0    -      -       -      -
    175A  TYR*     4.0    28.5    -      +       +      -
    178A  LEU*     3.5    12.3    -      -       -      +
    255A  LEU*     2.7    48.7    +      -       +      +
    258A  HIS*     1.3    91.7    -      +       +      +
    260A  GLY*     1.3    57.4    +      -       -      +
    263A  HIS*     3.0    31.7    -      -       +      -
    264A  ILE*     4.6     9.4    -      -       +      -
    274A  LEU*     3.9    30.2    +      -       +      +
    286A  ILE*     6.1     0.3    -      -       -      +
    289A  LEU*     4.4     4.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256A  HIS      3.1    19.6    +      -       -      +
    257A  ARG      4.5     1.3    +      -       -      -
    258A  HIS      3.4     2.8    +      -       -      -
    259A  TYR*     1.3    79.8    -      -       -      +
    261A  ALA*     1.3    64.2    +      -       -      -
    262A  GLN*     3.2     3.6    -      -       -      -
    263A  HIS*     3.0    14.1    +      -       -      -
    264A  ILE*     3.3    12.8    +      -       -      +
----------------------------------------------------------
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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