Contacts of the helix formed by residues 227 - 254 (chain W) in PDB entry 4BOG


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 PHE 227 (chain W).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225W  PRO*     4.2     8.7    -      -       +      -
    226W  LEU*     1.3   105.8    -      -       +      +
    228W  TYR*     1.4    68.8    +      -       -      +
    229W  VAL*     3.1     1.3    -      -       -      +
    230W  ILE*     2.5    48.2    -      -       +      +
    231W  ASN*     3.4     1.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 228 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224W  LYS*     4.1    22.4    +      -       +      +
    225W  PRO*     3.2    47.6    -      -       +      +
    227W  PHE*     1.4    78.2    -      -       -      +
    229W  VAL*     1.3    94.6    +      -       +      +
    230W  ILE      3.1     0.5    +      -       -      -
    231W  ASN*     3.6     0.8    +      -       -      -
    232W  PHE*     2.9    52.7    +      +       +      +
    287W  LEU*     5.6    10.1    -      -       +      -
    291W  TYR*     5.1     6.8    -      -       -      -
    295W  ILE*     5.9     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 229 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225W  PRO      3.6     0.7    -      -       -      +
    226W  LEU*     3.2    44.6    -      -       +      +
    227W  PHE      3.4     0.2    -      -       -      +
    228W  TYR*     1.3    98.2    -      -       +      +
    230W  ILE*     1.3    63.2    +      -       +      +
    233W  ILE*     2.6    49.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 230 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226W  LEU      2.9    27.4    -      -       -      +
    227W  PHE*     2.5    42.2    +      -       +      +
    229W  VAL*     1.3    82.0    -      -       +      +
    231W  ASN*     1.3    86.1    +      -       -      +
    233W  ILE*     4.8     0.2    -      -       -      +
    234W  THR*     2.4    33.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 231 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227W  PHE      3.4     3.2    +      -       -      +
    228W  TYR*     4.8     0.7    -      -       -      +
    230W  ILE*     1.3   119.3    -      -       +      +
    232W  PHE*     1.3    65.7    +      -       +      +
    234W  THR*     4.0     8.2    -      -       -      +
    235W  PRO*     2.9    20.2    -      -       -      +
    261X  VAL*     4.4    17.9    -      -       +      +
    265X  PRO*     5.9     1.3    -      -       -      +
    278X  MET*     4.9     3.6    -      -       -      +
    282X  MET*     3.9    29.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 232 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228W  TYR*     2.9    37.5    +      +       +      +
    231W  ASN*     1.3    84.1    -      -       +      +
    233W  ILE*     1.3    63.2    +      -       +      +
    235W  PRO*     2.9    26.9    -      -       +      +
    236W  CYS*     4.0    10.2    +      -       -      -
    274W  THR*     4.4    29.8    -      -       +      -
    277W  ARG*     4.7    16.2    -      -       +      -
    278W  LEU*     4.8    21.8    -      -       +      -
    281W  THR*     6.1     2.0    -      -       +      -
    295W  ILE*     5.4    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 233 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229W  VAL*     2.6    47.0    +      -       +      +
    232W  PHE*     1.3    82.5    -      -       +      +
    234W  THR*     1.3    66.8    +      -       -      +
    235W  PRO*     3.1     1.1    -      -       -      -
    236W  CYS*     2.9    23.8    +      -       +      +
    237W  VAL*     3.1    24.8    +      -       +      +
    471W  PHE*     5.3    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 234 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230W  ILE*     2.4    27.5    +      -       -      -
    231W  ASN*     4.0     8.6    -      -       -      +
    233W  ILE*     1.3    79.3    -      -       -      +
    235W  PRO*     1.3    69.8    -      -       +      +
    237W  VAL*     3.5     5.7    -      -       -      +
    238W  LEU*     3.1    46.2    +      -       +      +
    282X  MET*     5.3    13.5    -      -       +      -
    286X  ILE*     5.7     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 235 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231W  ASN      2.9    23.6    -      -       -      +
    232W  PHE*     2.9    25.4    -      -       +      +
    233W  ILE      3.1     0.2    -      -       -      -
    234W  THR*     1.3    93.3    -      -       +      +
    236W  CYS*     1.3    56.0    +      -       -      +
    238W  LEU*     4.0     8.3    -      -       +      -
    239W  ILE*     2.3    50.3    +      -       +      +
    274W  THR*     5.8     4.0    -      -       -      +
    258X  LEU*     5.8     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 236 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232W  PHE      4.0    11.4    -      -       -      -
    233W  ILE*     2.9    23.2    +      -       +      +
    235W  PRO*     1.3    84.4    -      -       -      +
    237W  VAL*     1.3    52.6    +      -       +      +
    239W  ILE*     4.3     5.6    -      -       -      +
    240W  SER*     2.5    45.7    +      -       -      +
    295W  ILE*     5.9     3.1    -      -       -      -
    298W  LEU*     6.0     5.2    -      -       -      -
    299W  VAL*     5.2    22.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 237 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233W  ILE*     3.1    20.8    +      -       +      +
    234W  THR*     3.5    13.5    -      -       -      +
    236W  CYS*     1.3    74.1    -      -       +      +
    238W  LEU*     1.3    75.2    +      -       +      +
    240W  SER*     4.0     5.6    -      -       -      -
    241W  PHE*     3.0    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 238 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234W  THR*     3.1    37.5    +      -       +      +
    235W  PRO*     3.7     7.0    -      -       +      +
    237W  VAL*     1.3    91.3    -      -       +      +
    239W  ILE*     1.3    66.8    +      -       +      +
    241W  PHE*     2.8    49.0    -      -       +      -
    242W  LEU*     3.3     1.4    +      -       -      +
    286X  ILE*     4.0    19.3    -      -       +      -
    289X  ILE*     3.6    36.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 239 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235W  PRO*     2.3    46.1    +      -       +      +
    236W  CYS*     4.0     4.9    -      -       -      +
    238W  LEU*     1.3    68.0    -      -       +      +
    240W  SER*     1.3    57.1    +      -       -      +
    242W  LEU*     2.6    45.4    +      -       +      +
    243W  ALA*     3.1     4.7    +      -       +      -
    267W  GLN*     4.9    20.8    +      -       +      +
    270W  PHE*     4.4    29.2    -      -       +      -
    299W  VAL*     5.9     5.2    -      -       +      -
    302W  VAL*     4.8    19.1    -      -       +      -
    258X  LEU*     5.6     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 240 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236W  CYS*     2.5    32.6    +      -       -      +
    237W  VAL*     4.0     6.5    -      -       -      -
    239W  ILE*     1.3    75.8    -      -       -      +
    241W  PHE*     1.3    51.6    +      -       -      +
    243W  ALA*     3.1     7.6    +      -       -      +
    244W  ALA*     2.4    40.8    +      -       -      +
    302W  VAL*     4.7    12.1    -      -       -      +
    464W  VAL*     5.8     8.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 241 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237W  VAL      3.0    14.6    +      -       -      +
    238W  LEU*     2.8    49.1    +      -       +      -
    240W  SER*     1.3    75.3    -      -       -      +
    242W  LEU*     1.3    68.0    +      -       +      +
    244W  ALA*     3.4     9.2    -      -       +      -
    245W  LEU*     2.3    76.4    +      -       +      +
    289X  ILE*     4.6     5.2    -      -       +      -
    292X  THR*     6.1     0.7    -      -       +      -
    293X  VAL*     2.9    41.1    -      -       +      -
    297X  ASN*     5.1     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 242 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238W  LEU      3.3     2.4    +      -       -      +
    239W  ILE*     2.6    32.4    +      -       +      +
    241W  PHE*     1.3    94.6    -      -       +      +
    243W  ALA*     1.3    49.6    +      -       -      +
    245W  LEU*     3.3     5.7    -      -       +      +
    246W  ALA*     2.3    35.6    +      -       +      +
    249W  LEU*     4.5     6.8    -      -       +      +
    263W  VAL*     3.2    35.0    -      -       +      -
    267W  GLN*     4.5    20.9    -      -       +      +
    270W  PHE*     6.5     1.1    -      -       +      -
    251X  LEU*     5.8     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 243 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239W  ILE*     3.1     7.0    +      -       +      +
    240W  SER*     3.8     3.4    -      -       -      +
    242W  LEU*     1.3    75.9    -      -       -      +
    244W  ALA*     1.3    63.7    +      -       -      +
    246W  ALA*     2.7    25.4    -      -       +      +
    247W  PHE*     3.3    11.1    +      -       -      +
    267W  GLN*     4.7    15.2    -      -       -      +
    302W  VAL*     3.3    34.8    -      -       +      +
    305W  ASN*     5.9     4.5    -      -       +      -
    306W  CYS*     5.6     0.7    -      -       -      -
    309W  VAL*     5.3     6.6    -      -       +      +
    460W  ILE*     5.5     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 244 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240W  SER*     2.4    34.2    +      -       -      +
    241W  PHE*     3.3    12.3    -      -       +      +
    243W  ALA*     1.3    68.0    -      -       -      +
    245W  LEU*     1.3    59.5    +      -       +      +
    247W  PHE*     3.2    11.3    +      -       -      +
    248W  TYR*     2.4    40.2    +      -       +      -
    460W  ILE*     4.8    10.0    -      -       +      +
    464W  VAL*     6.2     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 245 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241W  PHE*     2.3    73.1    +      -       +      +
    242W  LEU*     3.6     4.7    -      -       +      +
    244W  ALA*     1.3    68.6    -      -       +      +
    246W  ALA*     1.3    56.3    +      -       -      +
    248W  TYR*     2.7    15.5    +      -       +      -
    249W  LEU*     2.4    58.7    +      -       +      +
    293X  VAL*     4.8     4.0    -      -       +      -
    297X  ASN*     3.0    41.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 246 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242W  LEU*     2.3    29.1    +      -       +      +
    243W  ALA*     2.7    26.2    -      -       -      +
    245W  LEU*     1.3    69.4    -      -       -      +
    247W  PHE*     1.3    50.9    +      -       +      +
    249W  LEU*     3.4    10.3    +      -       -      +
    250W  PRO*     2.5    30.5    -      -       -      +
    267W  GLN*     5.5     3.4    -      -       -      +
    309W  VAL*     4.2    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 247 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243W  ALA      3.3     8.3    +      -       -      +
    244W  ALA      3.2     9.5    +      -       -      +
    245W  LEU      3.0     0.6    -      -       -      -
    246W  ALA*     1.3    82.6    -      -       +      +
    248W  TYR*     1.3    51.8    +      -       -      +
    250W  PRO*     2.5    33.3    -      -       +      +
    251W  ALA*     4.9     2.3    -      -       -      +
    305W  ASN*     4.5     3.4    -      -       +      -
    308W  ILE*     3.6    24.9    -      -       +      -
    309W  VAL*     4.2    14.1    -      -       +      -
    312W  PHE*     3.5    54.3    -      +       +      -
    313W  HIS*     6.3     0.7    -      -       +      -
    453W  ILE*     5.6     0.7    -      -       -      +
    456W  LEU*     4.1    11.0    -      -       +      -
    457W  SER*     2.4    33.5    +      -       -      +
    460W  ILE*     3.4    43.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 248 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244W  ALA*     2.4    48.7    -      -       +      -
    245W  LEU*     2.7    21.6    +      -       +      +
    247W  PHE*     1.3    71.3    -      -       -      +
    249W  LEU*     1.3    66.4    +      -       +      +
    250W  PRO*     3.0     4.7    -      -       -      -
    251W  ALA*     3.4     8.4    +      -       -      +
    252W  GLU*     3.3    20.4    +      -       -      +
    457W  SER*     4.1    16.6    -      -       -      -
    460W  ILE*     4.6     7.1    -      -       +      +
    461W  ILE*     2.7    43.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242W  LEU*     4.5     7.6    -      -       +      +
    245W  LEU*     2.4    67.5    +      -       +      +
    246W  ALA*     3.7     9.4    -      -       -      +
    248W  TYR*     1.3    75.3    -      -       +      +
    250W  PRO*     1.4    58.0    -      -       -      +
    251W  ALA      2.9     5.8    -      -       -      -
    252W  GLU*     3.9     9.5    -      -       +      +
    253W  SER      3.0    33.4    +      -       -      +
    256W  LYS*     3.3    23.5    +      -       -      +
    297X  ASN*     4.3    18.2    -      -       -      +
    300X  HIS*     6.0     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 250 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246W  ALA      2.5    20.4    -      -       -      +
    247W  PHE*     2.5    35.2    -      -       +      +
    248W  TYR      3.0     0.9    -      -       -      -
    249W  LEU      1.4    92.7    -      -       -      +
    251W  ALA*     1.3    59.0    +      -       +      +
    254W  GLY*     3.2    27.8    +      -       -      -
    256W  LYS*     5.3     0.4    -      -       -      +
    312W  PHE      6.0     0.9    -      -       -      +
    313W  HIS*     5.5    15.5    -      -       +      +
    315W  ARG*     6.1     3.1    -      -       -      +
    453W  ILE*     5.3     3.6    -      -       +      -
    456W  LEU*     6.3     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 251 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247W  PHE      4.9     1.1    -      -       -      +
    248W  TYR*     3.5    11.0    -      -       -      +
    249W  LEU      2.9     0.2    -      -       -      -
    250W  PRO*     1.3    83.6    -      -       +      +
    252W  GLU*     1.3    57.1    +      -       -      +
    253W  SER*     2.8    16.1    +      -       -      -
    254W  GLY      4.2     0.3    +      -       -      -
    453W  ILE*     2.8    41.7    -      -       +      -
    303X  PRO      4.3     5.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 252 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248W  TYR      3.3    12.6    +      -       -      +
    249W  LEU*     3.6     9.6    +      -       +      +
    251W  ALA*     1.3    79.2    -      -       -      +
    253W  SER*     1.3    64.8    +      -       -      +
    297X  ASN      5.1     1.6    -      -       -      +
    300X  HIS*     3.1    26.5    -      -       +      +
    301X  ARG*     2.9    34.1    -      -       -      +
    302X  SER      3.2    18.1    -      -       -      +
    303X  PRO*     3.0    27.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 253 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249W  LEU      3.0     7.7    +      -       -      -
    251W  ALA      2.8     4.7    +      -       -      -
    252W  GLU*     1.3    84.7    -      -       -      +
    254W  GLY*     1.3    57.5    +      -       -      +
    255W  GLU*     3.0     8.6    +      -       -      +
    256W  LYS*     3.0    41.2    +      -       -      +
    300X  HIS*     4.5     4.0    -      -       -      -
    303X  PRO      4.6     3.8    -      -       -      -
    304X  SER*     5.9     0.7    -      -       -      +
    306X  HIS*     2.6    44.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 254 (chain W). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250W  PRO*     3.2    30.9    +      -       -      -
    251W  ALA      4.2     1.2    +      -       -      -
    253W  SER*     1.3    70.1    -      -       -      +
    255W  GLU*     1.3    57.2    +      -       -      +
    256W  LYS*     3.0    13.4    +      -       -      -
    257W  MET*     3.5    24.8    +      -       -      +
    313W  HIS*     4.5     8.5    +      -       -      -
----------------------------------------------------------
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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