Contacts of the helix formed by residues 32 - 56 (chain A) in PDB entry 3GNI


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 32 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ILE*     1.3    78.0    -      -       -      +
     33A  ASP*     1.3    64.9    +      -       -      +
     34A  LYS*     3.8     6.5    +      -       -      +
     35A  LYS*     3.2    26.4    +      -       -      +
     36A  ALA*     3.0    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ILE      5.0     1.9    -      -       -      +
     32A  SER*     1.3    73.1    -      -       -      +
     34A  LYS*     1.3    59.7    +      -       +      +
     36A  ALA*     3.5     7.2    +      -       -      +
     37A  GLU*     2.9    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  SER*     3.2     6.6    +      -       -      +
     33A  ASP*     1.3    78.1    -      -       +      +
     35A  LYS*     1.3    58.8    +      -       -      +
     37A  GLU*     3.2    37.2    +      -       -      +
     38A  LYS*     2.8    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  VAL*     4.0    15.1    -      -       +      +
     28A  LYS*     5.1     5.4    -      -       -      +
     31A  ILE*     4.3    23.6    -      -       +      +
     32A  SER*     3.2    26.4    +      -       -      +
     34A  LYS*     1.3    77.7    -      -       -      +
     36A  ALA*     1.3    56.3    +      -       -      +
     38A  LYS*     3.5    13.3    +      -       +      +
     39A  ALA*     3.1    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  LEU*     3.6    10.5    -      -       +      +
     31A  ILE*     3.7    22.1    -      -       +      +
     32A  SER      3.0    15.9    +      -       -      +
     33A  ASP*     3.7     7.9    -      -       -      +
     35A  LYS*     1.3    73.8    -      -       -      +
     37A  GLU*     1.3    55.9    +      -       -      +
     39A  ALA*     3.4     2.4    +      -       -      +
     40A  THR*     2.8    38.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  ASP*     2.9    19.7    +      -       -      +
     34A  LYS*     3.2    42.4    +      -       -      +
     36A  ALA*     1.3    76.5    -      -       -      +
     38A  LYS*     1.3    57.9    +      -       -      +
     40A  THR*     3.2     9.3    +      -       +      -
     41A  GLU*     2.9    36.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LYS      2.8    17.7    +      -       -      +
     35A  LYS*     3.6    13.9    -      -       +      +
     37A  GLU*     1.3    75.0    -      -       -      +
     39A  ALA*     1.3    57.3    +      -       -      +
     41A  GLU*     3.3     7.3    +      -       -      +
     42A  GLU*     3.0    60.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  SER*     3.9    11.4    -      -       -      +
     25A  VAL*     3.6    37.7    -      -       +      -
     26A  LEU*     3.8    16.8    -      -       +      -
     35A  LYS      3.1     8.5    +      -       -      +
     38A  LYS*     1.3    74.6    -      -       -      +
     40A  THR*     1.3    60.5    -      -       -      +
     42A  GLU*     3.8     9.8    -      -       -      +
     43A  VAL*     2.9    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  LEU*     3.7    19.8    -      -       -      +
     36A  ALA*     2.8    20.0    +      -       -      +
     37A  GLU*     3.2    11.0    +      -       +      +
     39A  ALA*     1.3    76.4    -      -       -      +
     41A  GLU*     1.3    73.2    +      -       -      +
     43A  VAL*     3.6     2.3    +      -       -      +
     44A  SER*     3.2    23.7    +      -       -      -
     89A  LEU      4.8     4.5    +      -       -      -
     91A  ASP*     4.6    20.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  GLU*     2.9    22.3    +      -       +      +
     38A  LYS*     3.3     9.6    +      -       -      +
     40A  THR*     1.3    83.9    -      -       +      +
     42A  GLU*     1.3    57.2    +      -       +      +
     44A  SER*     3.5    12.6    +      -       -      -
     45A  LYS*     3.1    59.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  SER*     3.0    24.6    +      -       -      +
     38A  LYS*     3.0    57.5    +      -       -      +
     39A  ALA*     3.9     4.9    -      -       -      +
     40A  THR      3.3     0.2    -      -       -      -
     41A  GLU*     1.3    75.0    -      -       +      +
     43A  VAL*     1.3    65.9    +      -       -      +
     45A  LYS*     3.3     8.5    +      -       +      +
     46A  ASN*     2.9    37.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  LEU*     3.7    17.3    -      -       +      -
     22A  SER*     3.6    21.3    -      -       -      -
     23A  MET*     3.8    20.6    -      -       -      -
     26A  LEU*     3.9    15.0    -      -       +      -
     39A  ALA      2.9    21.4    +      -       -      +
     40A  THR      3.8     3.6    -      -       -      +
     42A  GLU*     1.3    76.2    -      -       -      +
     44A  SER*     1.3    64.7    +      -       -      +
     46A  ASN*     3.3     2.6    +      -       -      +
     47A  LEU*     2.9    46.9    +      -       +      +
     83A  LEU*     5.6     0.2    -      -       +      -
     90A  ILE*     4.0    25.4    -      -       +      -
     91A  ASP*     5.2     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  THR*     3.2    16.5    +      -       -      -
     41A  GLU*     3.5    15.9    +      -       -      -
     43A  VAL*     1.3    79.9    -      -       -      +
     45A  LYS*     1.3    59.6    +      -       -      +
     47A  LEU*     3.5     6.7    +      -       -      +
     48A  VAL*     3.1    33.8    +      -       -      +
     91A  ASP*     3.6    28.3    +      -       -      -
     94A  GLY*     5.4     2.8    -      -       -      -
     97A  ASP*     4.7     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLU*     3.1    46.9    +      -       -      +
     42A  GLU*     3.3     7.2    +      -       +      +
     44A  SER*     1.3    76.7    -      -       -      +
     46A  ASN*     1.3    59.3    -      -       -      +
     48A  VAL*     3.5     9.0    +      -       -      +
     49A  ALA*     3.0    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  LYS*     5.6     3.3    +      -       -      +
     15A  ILE*     3.8    14.8    -      -       +      +
     18A  ASN*     3.5    30.7    +      -       -      +
     19A  LEU*     3.5    39.7    -      -       +      +
     22A  SER*     4.7     0.2    +      -       -      -
     42A  GLU*     2.9    32.5    +      -       -      +
     43A  VAL*     3.6     4.2    -      -       -      +
     45A  LYS*     1.3    74.6    -      -       -      +
     47A  LEU*     1.3    58.8    +      -       -      +
     49A  ALA*     3.2     8.2    +      -       -      +
     50A  MET*     2.9    34.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  LEU*     3.6    24.2    -      -       +      -
     43A  VAL*     2.9    38.3    +      -       +      +
     44A  SER*     3.8     3.8    -      -       -      +
     46A  ASN*     1.3    72.8    -      -       -      +
     48A  VAL*     1.3    66.4    +      -       -      +
     50A  MET*     3.3     1.2    +      -       -      -
     51A  LYS*     3.0    26.2    +      -       -      +
     83A  LEU*     4.2    11.2    -      -       +      -
     90A  ILE*     4.0     5.4    -      -       +      -
     94A  GLY*     3.5    32.5    -      -       -      +
     97A  ASP*     4.0    13.9    -      -       +      +
     98A  VAL*     3.7    18.8    -      -       +      -
    101A  ILE*     3.5    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  SER*     3.1    22.2    +      -       -      +
     45A  LYS*     3.7    10.5    -      -       -      +
     47A  LEU*     1.3    75.1    -      -       -      +
     49A  ALA*     1.3    57.8    +      -       -      +
     51A  LYS*     3.5    14.0    +      -       -      +
     52A  GLU*     3.0    47.9    +      -       +      +
     97A  ASP*     3.5    17.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ILE*     4.2    21.3    -      -       +      -
     45A  LYS      3.0    16.0    +      -       -      +
     46A  ASN*     3.2    12.5    +      -       -      +
     48A  VAL*     1.3    79.1    -      -       -      +
     50A  MET*     1.3    60.0    +      -       -      +
     52A  GLU*     3.4     7.3    +      -       -      +
     53A  ILE*     3.2    28.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ILE*     3.7    15.7    -      -       +      -
     16A  VAL*     3.7    39.0    -      -       +      -
     19A  LEU*     3.5    30.5    -      -       +      -
     46A  ASN      2.9    19.0    +      -       -      +
     47A  LEU*     3.3     6.3    +      -       -      +
     49A  ALA*     1.3    72.9    -      -       -      +
     51A  LYS*     1.3    67.0    -      -       -      +
     53A  ILE*     3.1    14.0    +      -       -      +
     54A  LEU*     3.2    19.2    +      -       -      +
     70A  LEU*     3.9    22.3    -      -       +      +
     74A  LEU*     4.3    15.5    -      -       +      -
     79A  LEU*     4.2     6.3    -      -       +      -
     83A  LEU*     5.5     1.3    -      -       -      -
    101A  ILE*     3.7    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  LEU      3.0    13.1    +      -       -      +
     48A  VAL*     3.6    15.6    -      -       -      +
     50A  MET*     1.3    77.0    -      -       -      +
     52A  GLU*     1.3    62.6    +      -       +      +
     54A  LEU*     3.2     2.0    +      -       -      -
     55A  TYR*     2.8    55.4    +      -       +      +
     97A  ASP*     2.9    33.9    +      -       -      +
    100A  GLN*     3.5    26.9    +      -       +      +
    101A  ILE*     3.9    12.8    -      -       +      +
    189B  MET*     5.8     5.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  LYS*     5.6     7.5    -      -       -      -
     48A  VAL*     3.0    37.0    +      -       +      +
     49A  ALA*     3.8     7.7    -      -       -      +
     50A  MET      3.2     0.4    -      -       -      -
     51A  LYS*     1.3    81.5    -      -       +      +
     53A  ILE*     1.3    57.0    +      -       -      +
     56A  GLY*     2.8    38.2    +      -       -      +
     57A  THR*     3.8    26.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  LYS      5.1     1.3    -      -       -      +
     12A  PRO*     4.5    16.4    -      -       +      -
     15A  ILE*     3.7    27.1    -      -       +      -
     49A  ALA*     3.2    16.5    +      -       +      +
     50A  MET*     3.1     8.8    +      -       -      +
     52A  GLU*     1.3    78.6    -      -       -      +
     54A  LEU*     1.3    59.6    +      -       -      +
     62A  PRO*     3.4    18.5    -      -       -      +
     63A  GLN      4.7     1.4    +      -       -      +
     66A  ALA*     3.9    36.7    -      -       +      +
     67A  VAL*     3.5     8.5    -      -       -      +
     70A  LEU*     3.7    25.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  MET      3.2    15.7    +      -       -      +
     51A  LYS      3.2     4.3    +      -       -      +
     53A  ILE*     1.3    79.5    -      -       -      +
     55A  TYR*     1.3    63.4    +      -       +      +
     62A  PRO*     3.4    18.0    -      -       -      +
     67A  VAL*     3.8    28.4    -      -       +      +
     70A  LEU*     3.8    23.1    -      -       +      -
    101A  ILE*     3.8    46.2    -      -       +      +
    104A  ASN*     3.5    36.2    +      -       -      +
    105A  ILE*     4.0    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 55 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  LYS*     2.8    32.8    +      -       +      +
     54A  LEU*     1.3    82.1    -      -       +      +
     56A  GLY*     1.3    66.2    +      -       -      +
     57A  THR      3.9     0.3    +      -       -      -
     60A  LYS      4.5     0.5    -      -       -      +
     61A  GLU*     4.8     0.3    -      -       -      -
     62A  PRO*     3.4    15.5    -      -       -      +
    100A  GLN*     2.7    53.1    +      -       +      +
    101A  ILE*     4.5     0.9    -      -       -      -
    103A  ASN*     4.5     4.7    -      -       -      +
    104A  ASN*     3.5    27.6    +      -       +      +
    221B  ILE*     5.8     9.9    -      -       +      -
    224B  GLY*     3.1    30.4    +      -       -      -
    225B  GLN*     5.3     4.0    -      -       +      -
    226B  ARG*     3.3    25.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  GLU*     2.8    32.4    +      -       -      +
     54A  LEU      3.5     1.6    -      -       -      -
     55A  TYR*     1.3    84.1    -      -       -      +
     57A  THR*     1.3    70.9    +      -       -      +
     60A  LYS*     3.4    11.2    -      -       -      -
     61A  GLU      4.3     1.3    -      -       -      -
     62A  PRO*     3.9    13.2    -      -       -      +
    226B  ARG*     3.9     3.6    +      -       -      -
----------------------------------------------------------
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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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