Contacts of the helix formed by residues 302 - 327 (chain 3) in PDB entry 3EXG


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 302 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      13  PHE*     3.4    16.2    -      -       -      -
    2963  VAL*     4.4     0.2    -      -       -      -
    3013  ALA*     1.3    74.3    -      -       -      +
    3033  VAL*     1.3    65.7    +      -       -      +
    3043  GLU*     3.1    15.5    +      -       -      +
    3053  GLU*     2.7    49.6    +      -       -      +
    3063  LEU*     3.2    14.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 303 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2923  LYS*     3.8    33.0    -      -       +      +
    2963  VAL*     4.1    17.6    -      -       +      +
    3013  ALA      4.0     1.0    +      -       -      -
    3023  SER*     1.3    73.3    -      -       -      +
    3043  GLU*     1.3    81.8    +      -       -      +
    3063  LEU*     3.9     4.0    +      -       +      +
    3073  LYS*     3.1    25.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 304 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3023  SER*     3.1    14.0    -      -       -      +
    3033  VAL*     1.3    99.6    +      -       -      +
    3053  GLU*     1.3    60.6    +      -       -      +
    3063  LEU      3.2     0.2    -      -       -      -
    3073  LYS*     3.6     7.1    -      -       +      -
    3083  GLU*     2.8    51.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 305 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      13  PHE*     3.2    11.9    -      -       +      -
     293  ARG*     3.0    26.6    +      -       -      -
     333  LEU*     4.2    11.0    -      -       +      +
    3013  ALA*     3.1    17.3    -      -       +      +
    3023  SER*     2.7    48.3    +      -       -      +
    3043  GLU*     1.3    78.2    -      -       -      +
    3063  LEU*     1.3    59.2    +      -       +      +
    3083  GLU*     3.3     9.5    +      -       -      +
    3093  ILE*     3.1    33.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 306 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     333  LEU*     4.6     5.4    -      -       +      -
     363  TYR*     3.6    41.4    +      -       +      +
    2923  LYS*     3.3    47.1    -      -       +      +
    2953  MET*     4.1    28.3    -      -       +      -
    2963  VAL*     4.7     6.5    -      -       +      -
    3013  ALA*     4.7     5.6    -      -       +      -
    3023  SER      3.2    14.4    +      -       -      +
    3033  VAL*     4.1     4.5    -      -       -      +
    3043  GLU      3.2     0.2    -      -       -      -
    3053  GLU*     1.3    76.1    -      -       +      +
    3073  LYS*     1.3    65.0    +      -       -      +
    3083  GLU      3.1     2.1    +      -       -      -
    3093  ILE*     3.3    12.3    +      -       +      -
    3103  ASP*     3.2    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 307 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3033  VAL*     3.1    21.6    +      -       +      +
    3043  GLU*     3.2     9.8    +      -       +      +
    3063  LEU*     1.3    74.3    -      -       -      +
    3083  GLU*     1.3    61.5    +      -       +      +
    3103  ASP*     3.3    37.9    -      -       -      +
    3113  VAL*     3.1    26.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 308 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3043  GLU*     2.8    37.9    +      -       +      +
    3053  GLU*     3.7     8.3    +      -       -      +
    3073  LYS*     1.3    78.5    -      -       +      +
    3093  ILE*     1.3    65.9    +      -       -      +
    3103  ASP      3.2     1.1    -      -       -      -
    3113  VAL*     3.3    17.2    +      -       +      +
    3123  GLU*     3.3    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 309 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     333  LEU*     4.2    27.1    -      -       +      +
     363  TYR*     4.2    21.5    -      -       +      -
     373  ARG*     3.3    60.6    -      -       +      +
     403  GLN*     5.7     0.4    -      -       +      -
    3053  GLU*     3.1    17.8    +      -       +      +
    3063  LEU*     3.3    16.3    +      -       +      +
    3083  GLU*     1.3    74.8    -      -       -      +
    3103  ASP*     1.3    68.2    +      -       -      +
    3113  VAL      3.0     0.7    +      -       -      -
    3123  GLU*     3.1     4.7    +      -       -      +
    3133  VAL*     3.0    23.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 310 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     363  TYR*     2.9    23.5    +      -       -      -
     403  GLN*     3.3    28.7    +      -       -      +
     443  ARG*     5.5     0.7    -      -       -      +
    3063  LEU      3.2    14.0    -      -       -      +
    3073  LYS*     3.3    36.2    -      -       -      +
    3093  ILE*     1.3    79.5    -      -       -      +
    3113  VAL*     1.3    52.7    +      -       +      +
    3133  VAL*     3.3     7.8    +      -       -      +
    3143  ARG*     2.8    36.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 311 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3073  LYS*     3.1    28.5    -      -       +      +
    3083  GLU*     3.6    14.1    -      -       +      +
    3093  ILE      3.0     1.0    +      -       -      -
    3103  ASP*     1.3    78.7    -      -       +      +
    3123  GLU*     1.3    59.7    +      -       +      +
    3143  ARG*     3.5     6.8    +      -       +      +
    3153  LYS*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 312 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     373  ARG*     3.2    34.8    +      -       -      +
    3083  GLU*     3.3    19.6    -      -       -      +
    3093  ILE*     3.1     5.0    +      -       -      +
    3113  VAL*     1.3    74.3    -      -       +      +
    3133  VAL*     1.3    57.2    +      -       -      +
    3153  LYS*     3.4     8.2    +      -       -      +
    3163  GLU*     2.8    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 313 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     373  ARG*     4.2    27.1    -      -       +      +
     403  GLN*     3.6    22.0    -      -       +      +
     413  THR*     3.4    25.6    -      -       +      +
     443  ARG*     3.4    31.9    -      -       +      -
    3093  ILE*     3.0    19.6    +      -       +      +
    3103  ASP*     3.6     6.1    -      -       -      +
    3123  GLU*     1.3    72.5    -      -       -      +
    3143  ARG*     1.3    68.0    +      -       -      +
    3163  GLU*     3.0     8.3    +      -       +      +
    3173  ILE*     2.9    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 314 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     443  ARG*     3.0    47.1    -      -       +      +
    3103  ASP      2.8    17.3    +      -       -      +
    3113  VAL*     3.5    10.3    -      -       +      +
    3133  VAL*     1.3    79.3    -      -       -      +
    3153  LYS*     1.3    61.9    +      -       -      +
    3173  ILE*     3.9     4.7    -      -       -      +
    3183  GLU*     3.0    43.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 315 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3113  VAL*     3.0    16.8    +      -       -      +
    3123  GLU*     3.6    10.5    -      -       -      +
    3143  ARG*     1.3    74.2    -      -       -      +
    3163  GLU*     1.3    65.2    +      -       -      +
    3183  GLU*     3.0     7.6    +      -       -      +
    3193  ASP*     2.8    52.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 316 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     373  ARG*     6.0     0.3    +      -       -      -
     413  THR*     5.6     4.7    -      -       +      +
    1023  VAL*     5.0    12.3    -      -       +      -
    3123  GLU      2.8    18.4    +      -       -      +
    3133  VAL*     3.0    14.1    +      -       +      +
    3153  LYS*     1.3    77.3    -      -       -      +
    3173  ILE*     1.3    69.1    +      -       +      +
    3193  ASP*     3.3     8.2    +      -       -      +
    3203  ALA*     3.1    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 317 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     413  THR*     4.0    22.0    -      -       +      +
     443  ARG*     3.5    31.0    -      -       +      +
     453  MET*     4.2     5.4    -      -       +      +
     483  LYS*     3.6    35.4    -      -       +      -
    1023  VAL*     3.3    34.1    -      -       +      -
    1063  LEU*     4.7     3.4    -      -       +      -
    3133  VAL*     2.9    22.6    +      -       +      +
    3143  ARG*     3.9     5.8    -      -       -      +
    3163  GLU*     1.3    71.8    -      -       +      +
    3183  GLU*     1.3    64.0    +      -       -      +
    3203  ALA*     3.1     6.5    +      -       -      +
    3213  ALA*     2.7    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 318 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     483  LYS*     2.8    37.7    +      -       -      -
    3143  ARG*     3.0    41.2    +      -       -      +
    3153  LYS*     3.0     7.9    +      -       +      +
    3173  ILE*     1.3    83.1    -      -       -      +
    3193  ASP*     1.3    64.5    +      -       -      +
    3213  ALA*     4.2     2.9    -      -       -      +
    3223  GLN*     3.3    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 319 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1033  ARG*     5.5     3.6    -      -       -      +
    3153  LYS*     2.8    48.9    +      -       -      +
    3163  GLU*     3.9    10.9    -      -       -      +
    3183  GLU*     1.3    73.5    -      -       -      +
    3203  ALA*     1.3    67.7    +      -       -      +
    3223  GLN*     3.1    12.7    +      -       +      +
    3233  PHE*     2.9    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 320 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1023  VAL*     3.8    17.0    -      -       +      +
    1033  ARG*     3.8    44.0    -      -       +      +
    1063  LEU*     4.0     7.0    -      -       +      -
    3163  GLU      3.1    12.1    +      -       -      +
    3173  ILE      3.1     8.0    +      -       -      +
    3193  ASP*     1.3    73.6    -      -       -      +
    3213  ALA*     1.3    54.4    +      -       -      +
    3233  PHE*     2.8     7.2    +      -       -      +
    3243  ALA*     2.7    34.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 321 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     483  LYS*     3.4    43.1    -      -       +      +
     523  LEU*     4.5     6.5    -      -       +      -
    1063  LEU*     3.6    10.0    -      -       +      +
    3173  ILE      2.7    19.1    +      -       -      +
    3183  GLU*     4.2     4.3    -      -       -      +
    3203  ALA*     1.3    71.7    -      -       -      +
    3223  GLN*     1.3    57.4    +      -       -      +
    3243  ALA*     3.5     4.9    -      -       -      +
    3253  THR*     2.8    36.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 322 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3183  GLU      3.3    13.9    +      -       -      +
    3193  ASP*     3.1    14.9    +      -       -      +
    3213  ALA*     1.3    78.3    -      -       -      +
    3233  PHE*     1.3    74.5    +      -       -      +
    3253  THR*     3.1     9.2    +      -       -      -
    3263  ALA*     3.0    40.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 323 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1033  ARG*     3.4    65.7    -      -       +      +
    1043  GLU*     5.6     0.2    -      -       -      -
    1073  ALA*     3.8    22.7    -      -       +      -
    1143  GLY*     4.6     8.7    -      -       -      -
    3193  ASP      2.9    10.8    +      -       -      +
    3203  ALA*     2.8    12.6    +      -       -      +
    3223  GLN*     1.3    84.8    -      -       +      +
    3243  ALA*     1.3    60.7    +      -       -      +
    3263  ALA*     3.8     2.2    -      -       +      -
    3273  ASP*     2.9    56.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 324 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     523  LEU*     5.4     1.3    -      -       +      -
    1033  ARG      4.8     0.2    -      -       -      +
    1063  LEU*     3.9    14.4    -      -       +      +
    1073  ALA*     3.8    23.1    -      -       +      +
    1103  THR*     3.2    31.8    +      -       +      +
    1123  ARG*     3.3    17.7    +      -       -      +
    3203  ALA      2.7    14.8    +      -       -      +
    3213  ALA*     3.5     9.0    -      -       -      +
    3223  GLN      3.1     0.2    +      -       -      -
    3233  PHE*     1.3    82.0    -      -       +      +
    3253  THR*     1.3    60.8    +      -       -      +
    3263  ALA      3.2     0.9    +      -       -      -
    3273  ASP      3.8     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 325 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     523  LEU*     3.7    32.3    -      -       +      -
     573  ILE*     4.3    16.1    -      -       +      +
    1103  THR*     4.8     1.3    -      -       +      -
    1123  ARG*     3.1    21.3    +      -       -      +
    3213  ALA      2.8    21.4    +      -       -      +
    3223  GLN*     3.2    15.9    +      -       -      -
    3243  ALA*     1.3    71.1    -      -       -      +
    3263  ALA*     1.3    58.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 326 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3223  GLN*     3.0    37.8    +      -       -      +
    3233  PHE*     4.0     2.7    -      -       +      +
    3253  THR*     1.3    78.7    -      -       -      +
    3273  ASP*     1.3    66.8    +      -       -      +
    3283  PRO*     3.5     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 327 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1123  ARG*     3.1    42.3    +      -       +      +
    1133  LYS*     3.6     6.7    +      -       -      +
    1143  GLY*     2.7    39.2    +      -       -      -
    3233  PHE*     2.9    41.6    +      -       +      +
    3243  ALA*     3.8     1.1    +      -       -      +
    3253  THR      3.6     0.6    -      -       -      -
    3263  ALA*     1.3    76.5    -      -       -      +
    3283  PRO*     1.3    75.2    -      -       -      +
----------------------------------------------------------
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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).

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