Contacts of the helix formed by residues 321 - 345 (chain B) in PDB entry 1EJI


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 THR 321 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  MSE      3.7    15.9    -      -       -      -
    317B  LYS*     3.8    12.3    -      -       +      +
    318B  GLN*     2.8    27.8    +      -       +      +
    319B  ALA      4.0     1.4    -      -       -      +
    320B  MSE      1.3    83.1    -      -       -      +
    322B  THR*     1.3    60.7    +      -       -      +
    323B  GLU*     3.5    14.0    +      -       -      +
    324B  PHE*     3.0    17.8    +      -       -      +
    325B  LYS*     3.2    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  LEU*     3.5    28.0    -      -       +      -
    321B  THR*     1.3    71.7    -      -       -      +
    323B  GLU*     1.3    69.8    +      -       -      +
    324B  PHE      2.9     1.8    -      -       -      -
    325B  LYS*     3.1    13.7    +      -       +      +
    326B  ILE*     2.8    29.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 323 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  LEU*     4.2    12.3    -      -       +      +
     17A  SER*     3.2    37.8    +      -       -      -
     18A  HIS*     3.5    25.8    -      -       +      +
     21A  MSE      4.2    12.4    -      -       +      +
    321B  THR*     3.6    14.5    -      -       -      +
    322B  THR*     1.3    89.7    +      -       -      +
    324B  PHE*     1.3    56.8    +      -       -      +
    326B  ILE*     2.8    24.7    -      -       -      +
    327B  TYR*     3.1    14.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 324 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  MSE      4.7     2.5    -      -       +      -
    234B  GLY*     3.8    15.7    -      -       -      -
    237B  ALA*     4.6     1.3    -      -       +      -
    238B  ALA*     4.2    11.2    -      -       +      -
    258B  THR      3.9    12.6    -      -       -      -
    259B  LEU*     4.1    17.9    -      -       +      -
    260B  ARG*     3.6    27.6    -      -       +      -
    315B  ALA      5.9     0.2    -      -       -      -
    318B  GLN*     3.2    21.8    -      -       +      +
    319B  ALA*     2.8    44.6    -      -       +      -
    321B  THR*     3.0    11.8    +      -       -      +
    323B  GLU*     1.3    75.3    -      -       -      +
    325B  LYS*     1.3    67.3    +      -       -      +
    326B  ILE      3.0     1.6    -      -       -      -
    327B  TYR*     2.8    22.0    +      +       -      +
    328B  GLN*     2.9    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 325 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  ALA*     3.0    43.2    +      -       +      +
    239B  GLY*     4.5     6.5    -      -       -      -
    240B  VAL*     4.3     2.5    -      -       +      +
    319B  ALA      5.0     0.2    +      -       -      -
    321B  THR      3.2    10.0    +      -       -      +
    322B  THR*     3.1    17.6    +      -       +      +
    324B  PHE*     1.3    78.6    -      -       -      +
    326B  ILE*     1.3    56.5    +      -       -      +
    328B  GLN*     3.8     2.6    +      -       -      +
    329B  LEU*     3.2    39.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 326 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ASP*     3.9    29.8    -      -       +      +
     14A  LEU*     3.7    35.9    -      -       +      -
     15A  TRP*     3.9    21.3    -      -       +      +
     18A  HIS*     5.2     4.0    -      -       +      -
    322B  THR*     2.8    17.1    +      -       +      +
    323B  GLU*     2.8    34.3    -      -       -      +
    325B  LYS*     1.3    76.3    -      -       -      +
    327B  TYR*     1.3    64.3    +      -       -      +
    329B  LEU*     3.1    12.2    +      -       +      +
    330B  GLN*     3.0    21.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 327 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  TRP*     4.9     6.1    -      +       -      -
     18A  HIS*     3.4    36.1    -      +       +      +
     55B  ASN*     3.1    14.3    +      -       -      -
    258B  THR      4.8     2.7    -      -       -      -
    260B  ARG*     3.4    23.3    -      -       -      -
    323B  GLU      3.1     6.4    +      -       -      +
    324B  PHE*     2.8    16.5    +      +       -      +
    326B  ILE*     1.3    76.3    -      -       -      +
    328B  GLN*     1.3    96.3    +      -       -      +
    330B  GLN*     3.0     9.6    +      -       -      +
    331B  VAL*     2.9    39.6    +      -       +      +
    406B  PRO*     2.9    28.1    +      -       -      +
    409B  THR*     3.6    10.1    -      -       +      -
    410B  SER*     3.0    34.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 328 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  GLY      3.9     6.3    -      -       -      -
    235B  LEU*     3.0    49.2    -      -       +      +
    238B  ALA*     3.5    23.8    -      -       +      -
    240B  VAL*     4.0     4.9    -      -       +      -
    258B  THR*     3.3    17.6    +      -       -      +
    324B  PHE*     2.9    38.7    +      -       -      +
    325B  LYS      4.0     1.8    -      -       -      +
    327B  TYR*     1.3    91.7    +      -       -      +
    329B  LEU*     1.3    61.9    +      -       -      +
    331B  VAL*     3.2    20.9    -      -       -      +
    332B  LEU*     3.1    24.4    +      -       -      +
    406B  PRO*     5.2     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 329 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240B  VAL*     3.8    22.0    -      -       +      -
    325B  LYS*     3.2    27.5    +      -       +      +
    326B  ILE*     3.1    16.9    +      -       +      +
    328B  GLN*     1.3    77.1    -      -       -      +
    330B  GLN*     1.3    64.9    +      -       -      +
    332B  LEU*     3.3    11.2    +      -       +      +
    333B  ALA*     3.0    22.7    +      -       -      +
    336B  ARG*     4.8     6.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 330 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  ARG*     5.3     3.1    +      -       -      -
     11A  ASP*     5.8     0.2    -      -       -      +
     15A  TRP*     3.6    31.4    +      -       +      +
    326B  ILE*     3.0    10.2    +      -       +      +
    327B  TYR      3.0     9.3    +      -       -      +
    329B  LEU*     1.3    76.0    -      -       -      +
    331B  VAL*     1.3    55.2    +      -       -      +
    333B  ALA*     3.2     5.1    +      -       -      +
    334B  ASN*     2.6    78.5    +      -       -      +
    409B  THR*     3.7     6.3    -      -       +      -
    414B  LEU*     3.4    19.7    -      -       +      +
    415B  GLU*     3.1    29.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 331 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235B  LEU*     4.5     2.5    -      -       +      -
    327B  TYR*     2.9    56.7    +      -       +      +
    328B  GLN*     3.2    23.6    -      -       -      +
    329B  LEU      3.1     0.2    -      -       -      -
    330B  GLN*     1.3    76.3    -      -       -      +
    332B  LEU*     1.3    62.6    +      -       -      +
    334B  ASN*     3.5     0.9    +      -       -      +
    335B  CYS*     3.2    11.8    +      -       -      +
    357B  HIS*     4.0    11.6    -      -       +      -
    405B  THR*     2.8    32.2    +      -       -      +
    406B  PRO*     3.9    24.0    -      -       +      -
    409B  THR*     3.7    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 332 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235B  LEU*     4.4    12.6    -      -       +      -
    240B  VAL*     3.5    44.4    -      -       +      +
    241B  VAL*     4.4     3.4    -      -       +      -
    328B  GLN      3.1    10.0    +      -       -      +
    329B  LEU*     3.5    12.6    -      -       +      +
    331B  VAL*     1.3    77.0    -      -       -      +
    333B  ALA*     1.3    65.7    +      -       -      +
    335B  CYS*     2.9    19.4    +      -       -      +
    336B  ARG*     3.3    24.0    +      -       -      +
    355B  ASP      3.8     8.1    -      -       -      +
    356B  ASN*     3.2    42.0    -      -       -      +
    357B  HIS*     4.1     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 333 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329B  LEU      3.0    13.4    +      -       -      +
    330B  GLN*     3.5    14.1    -      -       -      +
    332B  LEU*     1.3    75.6    -      -       -      +
    334B  ASN*     1.3    64.0    +      -       -      +
    336B  ARG*     3.1    39.6    +      -       -      +
    337B  ALA*     3.1    13.0    +      -       -      +
    415B  GLU*     3.9    22.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 334 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330B  GLN*     2.6    42.5    +      -       -      +
    331B  VAL      3.7     5.2    -      -       -      +
    333B  ALA*     1.3    73.2    -      -       -      +
    335B  CYS*     1.3    61.6    +      -       -      +
    337B  ALA*     3.4     8.0    +      -       -      +
    338B  LEU*     3.1    23.6    +      -       -      +
    405B  THR*     4.1     2.7    -      -       -      -
    409B  THR*     2.7    31.0    +      -       -      +
    413B  LEU      3.0    19.2    +      -       -      -
    414B  LEU      3.2     1.2    -      -       -      -
    415B  GLU      3.2    18.0    +      -       -      -
    418B  PHE*     3.2    29.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 335 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331B  VAL      3.2     7.8    +      -       -      +
    332B  LEU      2.9    12.3    +      -       -      +
    334B  ASN*     1.3    75.1    -      -       -      +
    336B  ARG*     1.3    67.5    +      -       +      +
    338B  LEU*     3.1     6.0    +      -       -      +
    339B  SER*     2.8    22.9    +      -       -      -
    354B  SER*     3.4    35.7    -      -       -      -
    356B  ASN      3.4    14.6    -      -       -      +
    357B  HIS*     3.8     9.6    -      -       -      -
    358B  LEU      3.8     4.0    -      -       -      -
    359B  ILE*     3.6    16.1    -      -       -      +
    405B  THR*     3.7    17.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 336 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329B  LEU*     4.8     6.3    +      -       -      +
    332B  LEU*     4.0    19.4    +      -       -      +
    333B  ALA*     3.1    37.7    +      -       -      +
    335B  CYS*     1.3    77.6    -      -       +      +
    337B  ALA*     1.3    65.6    +      -       -      +
    339B  SER*     2.9     7.4    +      -       -      -
    340B  ASP*     2.5    39.2    +      -       -      +
    354B  SER*     5.3     9.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 337 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333B  ALA      3.1     9.1    +      -       -      +
    334B  ASN      3.4    10.1    -      -       -      +
    336B  ARG*     1.3    79.7    -      -       -      +
    338B  LEU*     1.3    56.2    +      -       -      +
    340B  ASP*     3.7     5.9    -      -       -      +
    341B  ALA*     3.0    31.9    +      -       -      +
    415B  GLU*     3.8    40.4    -      -       +      +
    418B  PHE*     4.6     2.5    -      -       +      -
    419B  GLN*     4.8     8.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 338 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  LEU*     4.6     9.0    -      -       +      -
    334B  ASN      3.1    10.6    +      -       -      +
    335B  CYS*     3.6     7.9    -      -       -      +
    337B  ALA*     1.3    79.3    -      -       -      +
    339B  SER*     1.3    57.7    +      -       -      +
    341B  ALA*     4.1     1.7    -      -       -      -
    342B  LEU*     3.0    50.5    +      -       +      +
    359B  ILE*     4.3     7.4    -      -       +      -
    403B  LEU*     4.4    24.0    -      -       +      -
    404B  GLY      5.4     0.2    -      -       -      +
    405B  THR*     4.6     9.4    -      -       +      -
    418B  PHE*     3.9    38.6    -      -       +      +
    421B  VAL*     4.9     1.1    -      -       +      -
    422B  ALA*     3.8    25.4    -      -       +      +
    425B  ILE*     4.6     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 339 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335B  CYS*     2.8    16.6    +      -       -      -
    336B  ARG*     3.5     7.2    -      -       -      -
    338B  LEU*     1.3    74.4    -      -       -      +
    340B  ASP*     1.3    61.1    +      -       -      +
    342B  LEU*     3.8     2.2    -      -       -      +
    343B  THR*     2.7    37.6    +      -       -      -
    349B  ILE*     3.7    25.4    -      -       -      +
    352B  GLY      4.2     1.9    +      -       -      -
    353B  GLY*     3.9    13.7    -      -       -      -
    354B  SER      5.3     1.8    -      -       -      -
    359B  ILE*     4.0    24.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 340 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336B  ARG*     2.5    44.8    +      -       -      +
    337B  ALA*     3.7     5.4    -      -       -      +
    339B  SER*     1.3    73.2    -      -       -      +
    341B  ALA*     1.3    56.6    +      -       -      +
    342B  LEU      3.0     1.1    -      -       -      -
    343B  THR*     3.0     6.4    +      -       -      -
    344B  GLU*     2.6    38.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 341 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337B  ALA      3.0    18.4    +      -       -      +
    338B  LEU      4.1     0.7    -      -       -      +
    340B  ASP*     1.3    76.1    -      -       -      +
    342B  LEU*     1.3    59.4    +      -       -      +
    344B  GLU*     3.5    16.2    -      -       -      +
    345B  LEU*     3.0    32.4    +      -       +      +
    419B  GLN*     4.4    22.7    -      -       +      +
    422B  ALA*     3.7    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 342 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338B  LEU*     3.0    31.1    +      -       +      +
    339B  SER*     3.8     4.3    -      -       -      +
    340B  ASP      3.0     0.6    -      -       -      -
    341B  ALA*     1.3    76.5    -      -       -      +
    343B  THR*     1.3    65.0    +      -       -      +
    345B  LEU*     3.3    13.6    +      -       +      +
    346B  GLY      3.4     0.7    +      -       -      -
    347B  TYR*     3.1    36.1    +      -       +      -
    349B  ILE*     4.6     6.7    -      -       +      -
    359B  ILE*     3.9    11.7    -      -       +      -
    361B  MSE      4.1    19.7    -      -       +      -
    403B  LEU*     3.9    23.1    -      -       +      -
    422B  ALA*     3.5    41.5    -      -       +      +
    425B  ILE*     4.9     8.3    -      -       +      -
    426B  HIS      5.4     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 343 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339B  SER*     2.7    25.1    +      -       -      -
    340B  ASP*     3.6     5.8    -      -       -      -
    342B  LEU*     1.3    75.0    -      -       -      +
    344B  GLU*     1.3    56.5    +      -       -      +
    346B  GLY*     2.6    28.4    +      -       -      -
    347B  TYR      3.7    15.9    +      -       -      +
    349B  ILE*     3.7    16.3    -      -       +      +
    352B  GLY      4.3     6.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 344 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340B  ASP      2.6    20.9    +      -       -      +
    341B  ALA*     3.5    16.5    -      -       -      +
    343B  THR*     1.3    72.9    -      -       -      +
    345B  LEU*     1.3    59.9    +      -       +      +
    346B  GLY*     3.0     5.2    +      -       -      -
    419B  GLN*     5.6     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 345 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341B  ALA      3.0    21.6    +      -       -      +
    342B  LEU*     3.6    11.7    -      -       +      +
    343B  THR      3.1     0.6    -      -       -      -
    344B  GLU*     1.3    77.8    -      -       +      +
    346B  GLY*     1.3    58.4    +      -       -      +
    347B  TYR*     4.0    15.6    -      -       +      -
    366B  LYS*     5.3     1.4    +      -       -      -
    422B  ALA*     4.1    16.6    -      -       +      +
    423B  HIS*     4.5    11.7    -      -       +      +
    426B  HIS*     3.3    55.9    +      -       +      +
----------------------------------------------------------
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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