Contacts of the helix formed by residues 388 - 410 (chain M) in PDB entry 2I2X


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 ASN 388 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385M  ASP*     3.0    12.6    +      -       +      +
    386M  GLY      3.3     0.2    -      -       -      -
    387M  ASP*     1.3    78.4    -      -       +      +
    389M  ILE*     1.3    63.3    +      -       -      +
    390M  TYR*     3.0    21.0    +      -       -      +
    391M  LEU*     3.1    30.0    +      -       +      +
    392M  ARG*     3.0    25.6    +      -       -      +
    434M  ASP      4.9     1.8    +      -       -      -
    436M  MET*     3.4    26.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 389 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5M  ARG*     3.6    38.4    -      -       -      +
    189M  GLY      3.8     7.6    -      -       -      +
    190M  CYS*     4.0    17.9    -      -       +      +
    193M  SER*     4.1    21.0    +      -       -      -
    194M  ILE*     3.9    28.9    -      -       +      -
    252M  PRO*     5.5     0.7    -      -       -      +
    387M  ASP      3.6     3.8    +      -       -      +
    388M  ASN*     1.3    72.4    +      -       -      +
    390M  TYR*     1.3    63.6    +      -       -      +
    392M  ARG*     3.7    18.0    +      -       -      +
    393M  ALA*     3.5    19.8    +      -       -      +
    436M  MET*     3.5    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 390 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185M  LEU*     3.4    17.0    -      -       +      +
    190M  CYS*     3.9    16.8    -      -       -      -
    388M  ASN*     3.0     7.9    +      -       -      +
    389M  ILE*     1.3    80.6    -      -       -      +
    391M  LEU*     1.3    62.5    +      -       -      +
    393M  ALA*     3.3     5.1    +      -       -      +
    394M  LYS*     3.0    48.7    +      -       +      +
    432M  LEU*     3.6     5.5    -      -       -      +
    433M  PRO      2.9    28.7    +      -       -      -
    434M  ASP      3.5    14.8    -      -       -      -
    435M  ASP      4.0     5.2    -      -       -      -
    436M  MET*     3.5    35.9    -      -       +      -
    439M  PHE*     3.1    54.1    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 391 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385M  ASP*     3.4    33.0    -      -       +      +
    388M  ASN*     3.1    26.1    +      -       +      +
    390M  TYR*     1.3    78.0    -      -       -      +
    392M  ARG*     1.3    58.4    +      -       -      +
    394M  LYS*     3.7    29.8    -      -       -      +
    395M  ASN*     2.7    50.5    +      -       -      +
    434M  ASP*     3.7    38.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 392 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5M  ARG*     3.9     7.8    -      -       -      +
      6M  TYR      4.7     0.4    +      -       -      +
    193M  SER*     5.1     0.8    +      -       -      -
    252M  PRO*     2.9    42.5    +      -       +      +
    255M  LEU*     3.9    11.7    -      -       -      +
    256M  VAL*     3.3    10.9    -      -       -      +
    259M  GLU*     2.5    46.0    +      -       -      -
    382M  ILE*     3.3    36.3    -      -       +      +
    385M  ASP      3.7     7.2    +      -       -      +
    386M  GLY*     3.0    29.5    +      -       -      -
    388M  ASN      3.0    21.0    +      -       -      +
    389M  ILE*     3.7    17.4    -      -       -      +
    391M  LEU*     1.3    77.6    -      -       -      +
    393M  ALA*     1.3    62.9    +      -       -      +
    395M  ASN*     3.5     8.9    -      -       -      +
    396M  ALA*     3.0    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 393 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185M  LEU*     3.6    21.5    -      -       +      -
    189M  GLY*     3.9    18.8    -      -       -      +
    249M  ILE*     4.0     9.0    -      -       +      +
    252M  PRO*     3.7    20.2    -      -       +      -
    389M  ILE      3.5    14.3    +      -       -      +
    390M  TYR      3.3     1.9    +      -       -      +
    391M  LEU      3.3     0.4    -      -       -      -
    392M  ARG*     1.3    79.3    -      -       -      +
    394M  LYS*     1.3    66.0    +      -       -      +
    396M  ALA*     3.1     4.2    +      -       -      +
    397M  ALA*     3.0    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 394 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185M  LEU*     3.9    16.1    -      -       +      +
    390M  TYR*     3.0    46.6    +      -       +      +
    391M  LEU*     3.3    19.2    +      -       -      +
    393M  ALA*     1.3    74.5    -      -       -      +
    395M  ASN*     1.3    65.0    +      -       -      +
    397M  ALA*     3.0     6.9    +      -       -      +
    398M  ILE*     2.9    43.1    +      -       +      +
    429M  LEU*     3.8    20.4    +      -       +      +
    430M  GLU*     5.9     0.4    +      -       -      +
    432M  LEU*     3.9    15.8    +      -       +      -
    433M  PRO      3.6    13.7    -      -       -      -
    434M  ASP*     2.8    25.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 395 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381M  SER*     2.9    34.0    +      -       -      +
    384M  LYS*     3.7    16.4    -      -       -      +
    385M  ASP*     2.8    32.2    +      -       -      +
    391M  LEU*     2.7    41.7    +      -       -      +
    392M  ARG*     3.5     3.5    -      -       -      +
    394M  LYS*     1.3    74.2    +      -       -      +
    396M  ALA*     1.3    53.5    +      -       -      +
    398M  ILE*     3.3     5.1    +      -       -      +
    399M  GLU*     2.7    37.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 396 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248M  ALA*     3.5    28.4    -      -       -      +
    252M  PRO*     4.4     0.7    -      -       +      -
    378M  VAL*     4.1     9.8    -      -       +      +
    381M  SER*     3.6    11.0    +      -       -      -
    382M  ILE*     3.8    17.9    -      -       +      -
    392M  ARG      3.0    11.3    +      -       -      +
    393M  ALA*     3.1    12.3    +      -       -      +
    395M  ASN*     1.3    77.9    -      -       -      +
    397M  ALA*     1.3    57.3    +      -       -      +
    399M  GLU*     3.9     0.9    -      -       -      +
    400M  CYS*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 397 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245M  ILE*     4.1     6.2    -      -       +      +
    248M  ALA*     4.5     2.2    -      -       -      -
    249M  ILE*     3.7    23.6    -      -       +      -
    393M  ALA      3.0    12.8    +      -       -      +
    394M  LYS*     3.0     8.9    +      -       -      +
    396M  ALA*     1.3    77.4    -      -       -      +
    398M  ILE*     1.3    62.2    +      -       -      +
    400M  CYS*     3.3     9.0    -      -       -      +
    401M  CYS*     3.1    24.6    +      -       -      -
    429M  LEU*     3.6    30.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 398 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394M  LYS*     2.9    36.9    +      -       +      +
    395M  ASN*     4.1     3.8    -      -       -      +
    397M  ALA*     1.3    75.0    -      -       -      +
    399M  GLU*     1.3    65.8    +      -       -      +
    401M  CYS*     3.0     8.8    +      -       -      +
    402M  ASN*     3.0    33.0    +      -       -      +
    426M  LYS*     4.3     8.7    -      -       +      +
    429M  LEU*     3.6    45.3    -      -       +      +
    430M  GLU*     3.7    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 399 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377M  ARG*     2.5    52.9    +      -       -      +
    378M  VAL*     4.3     3.1    -      -       -      -
    381M  SER*     3.6    26.8    -      -       -      +
    384M  LYS*     5.2     5.2    +      -       -      -
    395M  ASN      2.7    23.1    +      -       -      +
    396M  ALA      3.9     2.0    -      -       -      +
    398M  ILE*     1.3    73.1    -      -       -      +
    400M  CYS*     1.3    57.9    +      -       -      +
    402M  ASN*     3.0    14.3    +      -       -      +
    403M  ILE*     2.8    43.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 400 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244M  VAL*     3.7    46.0    -      -       -      -
    245M  ILE*     4.1    10.1    -      -       +      -
    248M  ALA*     3.6    13.2    -      -       +      -
    369M  MET*     4.1    11.4    -      -       +      -
    378M  VAL*     4.7     2.5    -      -       +      +
    396M  ALA      2.9    16.1    +      -       -      +
    397M  ALA*     3.3    11.7    -      -       -      +
    399M  GLU*     1.3    73.9    -      -       -      +
    401M  CYS*     1.3    64.3    +      -       -      +
    403M  ILE*     3.1    11.9    +      -       -      +
    404M  ILE*     2.9    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 401 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245M  ILE*     3.7    27.8    -      -       -      -
    397M  ALA      3.1    16.0    +      -       -      -
    398M  ILE*     3.0    10.1    +      -       -      +
    400M  CYS*     1.3    78.8    -      -       -      +
    402M  ASN*     1.3    58.3    +      -       -      +
    404M  ILE*     3.4     1.7    +      -       -      +
    405M  GLU*     3.0    32.8    +      -       -      +
    422M  LEU*     4.0    18.4    -      -       +      +
    426M  LYS*     4.0    44.0    -      -       +      +
    429M  LEU*     4.2     6.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 402 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377M  ARG*     4.1    13.9    -      -       -      +
    398M  ILE*     3.0    28.0    +      -       -      +
    399M  GLU*     3.0    16.4    +      -       -      +
    401M  CYS*     1.3    73.2    -      -       -      +
    403M  ILE*     1.3    65.2    +      -       -      +
    405M  GLU*     3.3    14.1    +      -       -      +
    406M  GLU*     3.0    34.4    +      -       -      +
    426M  LYS*     2.6    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 403 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368M  TYR*     3.5    17.8    -      -       +      -
    369M  MET*     4.7     8.3    -      -       +      -
    374M  ASN*     3.5    43.5    -      -       +      +
    377M  ARG*     3.6    37.2    -      -       +      +
    378M  VAL*     3.6    31.4    -      -       +      -
    399M  GLU*     2.8    22.8    +      -       +      +
    400M  CYS*     3.1     7.4    +      -       -      +
    402M  ASN*     1.3    76.5    -      -       -      +
    404M  ILE*     1.3    56.2    +      -       +      +
    406M  GLU*     3.4     5.4    +      -       -      +
    407M  GLY      3.0    23.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 404 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241M  THR*     4.2    10.8    -      -       +      -
    244M  VAL*     4.3     9.9    -      -       +      -
    365M  PRO*     3.6    31.2    -      -       +      +
    368M  TYR*     4.1    17.0    -      -       +      -
    369M  MET*     4.0    17.9    -      -       +      -
    400M  CYS*     2.9    31.0    +      -       -      +
    401M  CYS      3.9     3.4    -      -       -      +
    403M  ILE*     1.3    77.2    -      -       +      +
    405M  GLU*     1.3    55.7    +      -       -      +
    407M  GLY*     3.3     1.4    +      -       -      +
    408M  ALA*     2.9    26.7    +      -       -      +
    412M  LEU*     4.1     9.7    -      -       +      +
    414M  LEU*     3.9    18.2    -      -       +      -
    422M  LEU*     3.8    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 405 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401M  CYS*     3.0    17.8    +      -       -      +
    402M  ASN*     3.4    25.0    -      -       -      +
    404M  ILE*     1.3    73.4    -      -       -      +
    406M  GLU*     1.3    66.2    +      -       +      +
    408M  ALA*     3.1     9.0    +      -       -      +
    409M  ALA*     3.0    22.7    +      -       -      +
    422M  LEU*     4.1    15.1    -      -       +      +
    423M  ALA*     6.1     0.9    -      -       -      -
    426M  LYS*     3.4    31.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 406 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368M  TYR*     4.5     2.5    -      -       -      +
    377M  ARG*     2.8    45.8    +      -       -      -
    402M  ASN*     3.0    18.5    +      -       -      +
    403M  ILE*     3.6     4.7    -      -       -      +
    405M  GLU*     1.3    78.9    -      -       +      +
    407M  GLY*     1.3    64.8    +      -       -      +
    409M  ALA*     3.2     9.0    +      -       -      +
    410M  GLY*     3.2    16.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 407 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362M  TYR*     5.4     0.4    -      -       -      -
    368M  TYR*     3.2    36.5    +      -       -      -
    403M  ILE      3.0    11.1    +      -       -      -
    404M  ILE      3.7     3.1    -      -       -      -
    405M  GLU      3.3     0.2    -      -       -      -
    406M  GLU*     1.3    75.2    -      -       -      +
    408M  ALA*     1.3    56.1    +      -       -      +
    410M  GLY*     2.9    17.1    +      -       -      -
    411M  LYS      3.2     2.9    +      -       -      -
    412M  LEU*     2.9    26.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 408 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    404M  ILE      2.9    18.4    +      -       -      +
    405M  GLU*     3.1     9.8    +      -       -      +
    407M  GLY*     1.3    77.9    -      -       -      +
    409M  ALA*     1.3    59.6    +      -       -      +
    410M  GLY      3.4     4.9    +      -       -      +
    412M  LEU*     3.3    23.7    -      -       +      +
    414M  LEU*     4.1    23.1    -      -       +      -
    419M  THR*     6.0     0.4    -      -       -      +
    422M  LEU*     6.0     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 409 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405M  GLU      3.0    12.1    +      -       -      +
    406M  GLU*     3.2    10.3    +      -       -      +
    408M  ALA*     1.3    75.5    -      -       -      +
    410M  GLY*     1.3    61.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 410 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406M  GLU      3.2     8.2    +      -       -      -
    407M  GLY*     2.9    10.0    +      -       -      -
    408M  ALA      3.7     5.0    -      -       -      +
    409M  ALA*     1.3    80.9    -      -       -      +
    411M  LYS*     1.3    66.0    +      -       -      +
    412M  LEU      4.7     0.3    -      -       -      +
----------------------------------------------------------
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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