Contacts of the helix formed by residues 85 - 114 (chain A) in PDB entry 5JGH


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 GLU 85 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  ASN      3.6     2.4    +      -       -      -
     84A  LEU*     1.3    79.6    -      -       +      +
     86A  ALA*     1.3    60.9    +      -       -      +
     87A  ASP*     3.3    25.3    -      -       -      +
     88A  ILE*     3.2    17.2    -      -       +      +
     89A  LYS*     2.8    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LEU      3.2     4.5    +      -       -      +
     85A  GLU*     1.3    72.1    -      -       -      +
     87A  ASP*     1.3    61.6    +      -       -      +
     89A  LYS*     3.9    10.8    -      -       +      -
     90A  GLU*     2.8    46.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  GLU*     3.3    31.1    -      -       -      +
     86A  ALA*     1.3    76.3    +      -       -      +
     88A  ILE*     1.3    61.6    +      -       -      +
     90A  GLU*     3.7     9.8    +      -       -      +
     91A  LYS*     3.4    15.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  TYR*     5.8     0.4    -      -       +      -
     57A  HIS*     5.1    13.9    -      -       +      +
     84A  LEU*     3.8    22.7    -      -       +      -
     85A  GLU*     3.2    37.9    -      -       +      +
     87A  ASP*     1.3    79.7    -      -       -      +
     89A  LYS*     1.3    66.5    +      -       -      +
     91A  LYS*     2.9    29.0    +      -       +      +
     92A  TYR*     3.5    19.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  TRP*     3.4    65.9    +      -       +      +
     82A  GLN*     3.8    22.0    +      -       -      +
     84A  LEU*     4.2    22.0    -      -       +      +
     85A  GLU      2.8    18.8    +      -       -      +
     86A  ALA*     3.8     9.0    -      -       +      +
     87A  ASP      3.4     0.2    -      -       -      -
     88A  ILE*     1.3    77.3    -      -       -      +
     90A  GLU*     1.3    61.2    +      -       +      +
     91A  LYS      3.2     0.9    +      -       -      -
     92A  TYR*     3.3    11.8    +      -       -      +
     93A  ILE*     3.1    22.5    +      -       +      +
     16E    T      4.5     5.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  ALA*     2.8    29.3    +      -       +      +
     87A  ASP*     4.0     8.2    -      -       -      +
     89A  LYS*     1.3    73.9    -      -       +      +
     91A  LYS*     1.3    59.7    +      -       -      +
     92A  TYR      3.3     0.2    -      -       -      -
     93A  ILE*     3.5    14.0    -      -       +      +
     94A  SER*     2.8    32.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  ASP      3.4     8.6    +      -       -      +
     88A  ILE*     2.9    25.4    +      -       +      +
     90A  GLU*     1.3    78.7    -      -       -      +
     92A  TYR*     1.3    71.0    +      -       +      +
     94A  SER*     3.3     5.5    +      -       -      -
     95A  GLU*     3.0    31.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  ALA*     3.9    21.1    -      -       +      +
     52A  LEU*     3.6    22.4    -      -       +      +
     53A  TYR*     3.5    44.9    -      +       +      -
     56A  ASP*     2.4    38.2    +      -       -      +
     57A  HIS*     3.4    10.6    -      +       -      -
     81A  TRP*     4.0     8.3    -      +       +      -
     84A  LEU*     5.0     0.7    -      -       +      -
     88A  ILE*     3.5    23.7    +      -       +      +
     89A  LYS      3.3     6.5    +      -       -      +
     91A  LYS*     1.3    85.6    -      -       +      +
     93A  ILE*     1.3    57.1    +      -       -      +
     95A  GLU*     2.9     9.6    +      -       +      +
     96A  ARG*     2.6    36.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  ALA*     3.6    22.4    -      -       +      -
     81A  TRP*     4.0    15.5    -      -       +      -
     89A  LYS*     3.1    21.3    -      -       +      +
     90A  GLU*     3.3    18.1    +      -       +      +
     92A  TYR*     1.3    75.0    -      -       -      +
     94A  SER*     1.3    56.8    +      -       -      +
     96A  ARG*     3.3     3.1    +      -       +      +
     97A  LYS*     2.8    29.0    +      -       +      +
     16E    T      5.8     6.5    -      -       -      +
     17E    A      6.0     4.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  GLU      2.8    19.4    +      -       -      -
     91A  LYS*     3.7     6.3    -      -       -      -
     93A  ILE*     1.3    70.7    -      -       -      +
     95A  GLU*     1.3    60.5    +      -       -      +
     97A  LYS*     3.1    26.1    +      -       -      +
     98A  LYS*     2.9    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  LEU*     4.1    18.6    -      -       +      +
     91A  LYS*     3.0    19.3    +      -       +      +
     92A  TYR*     2.9    15.1    +      -       +      +
     94A  SER*     1.3    74.7    -      -       -      +
     96A  ARG*     1.3    67.5    +      -       -      +
     98A  LYS*     2.9    48.4    +      -       -      +
     99A  LEU*     2.9    31.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ARG*     5.0     6.1    -      -       -      +
     46A  PRO*     4.3    15.2    +      -       +      +
     47A  THR      3.2    29.9    +      -       -      +
     48A  SER*     3.7     7.8    -      -       -      +
     49A  ALA*     3.5    26.0    -      -       +      +
     52A  LEU*     3.9     7.1    -      -       +      +
     92A  TYR      2.6    19.7    +      -       -      +
     93A  ILE*     3.5     5.2    -      -       +      +
     95A  GLU*     1.3    73.4    -      -       -      +
     97A  LYS*     1.3    59.1    +      -       -      +
     99A  LEU*     3.3     6.4    +      -       +      +
    100A  TYR*     2.9    59.1    +      -       -      +
     16E    T      5.6     0.8    +      -       -      -
     17E    A      3.5    54.9    +      -       -      -
     18E    T      5.0     1.0    +      -       -      -
      7F    A      5.3     4.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ILE*     2.8    14.5    +      -       +      +
     94A  SER*     3.4    28.0    +      -       -      +
     95A  GLU      3.1     0.4    -      -       -      -
     96A  ARG*     1.3    77.7    -      -       -      +
     98A  LYS*     1.3    64.8    +      -       -      +
    100A  TYR*     3.5     5.0    +      -       -      +
    101A  SER*     3.2    27.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  SER      2.9    11.3    +      -       -      +
     95A  GLU*     2.9    42.9    +      -       -      +
     97A  LYS*     1.3    82.3    -      -       -      +
     99A  LEU*     1.3    69.2    +      -       +      +
    101A  SER*     3.4     7.7    +      -       -      -
    102A  GLU*     3.1    48.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  PRO*     3.9    22.0    -      -       +      +
     47A  THR*     5.4     4.7    -      -       +      +
     52A  LEU*     4.0    24.0    -      -       +      -
     95A  GLU*     2.9    41.4    +      -       +      +
     96A  ARG*     3.3     6.5    +      -       -      +
     98A  LYS*     1.3    89.2    -      -       -      +
    100A  TYR*     1.3    60.9    +      -       -      +
    102A  GLU*     3.2    23.0    +      -       -      +
    103A  TYR*     2.9    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ARG*     4.9     5.4    -      -       -      -
     46A  PRO*     3.7    27.5    -      -       +      +
     96A  ARG*     2.9    41.7    +      -       -      +
     97A  LYS*     4.1     5.2    -      -       -      +
     98A  LYS      3.4     0.2    -      -       -      -
     99A  LEU*     1.3    77.3    -      -       -      +
    101A  SER*     1.3    58.7    +      -       -      +
    103A  TYR*     3.3    17.0    +      +       -      +
    104A  GLN*     2.8    60.6    +      -       +      +
     18E    T      2.6    42.2    +      -       -      -
     19E    A      2.4    36.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LYS*     3.2    18.7    +      -       -      +
     98A  LYS*     3.6     9.9    -      -       -      -
     99A  LEU      3.2     0.2    -      -       -      -
    100A  TYR*     1.3    78.7    -      -       -      +
    102A  GLU*     1.3    57.3    +      -       -      +
    104A  GLN*     3.1    15.2    +      -       -      +
    105A  LYS*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  LYS*     3.1    43.4    +      -       +      +
     99A  LEU*     3.2    21.6    +      -       -      +
    101A  SER*     1.3    77.5    -      -       -      +
    103A  TYR*     1.3    62.0    +      -       -      +
    105A  LYS*     3.2     7.9    +      -       -      +
    106A  ALA*     3.0    23.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  PRO*     3.3    33.1    +      -       +      -
     44A  LYS      3.2    18.8    -      -       -      +
     45A  ARG*     3.3    23.0    +      -       +      +
     46A  PRO*     3.7    22.2    -      -       +      -
     99A  LEU      2.9    13.7    +      -       -      +
    100A  TYR*     3.5    27.4    -      +       -      +
    102A  GLU*     1.3    74.6    -      -       -      +
    104A  GLN*     1.3    69.2    +      -       +      +
    106A  ALA*     3.2     6.6    +      -       -      +
    107A  LYS*     3.0    47.3    +      -       +      +
     19E    A      4.1    21.1    -      -       -      -
     20E    T      4.1     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  TYR*     2.8    52.6    +      -       +      +
    101A  SER*     3.1    15.1    +      -       -      +
    103A  TYR*     1.3    80.5    -      -       +      +
    105A  LYS*     1.3    61.7    +      -       -      +
    107A  LYS*     3.3     5.5    +      -       -      +
    108A  LYS*     3.1    23.2    +      -       -      +
     19E    A      4.1    11.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  SER      2.9    16.0    +      -       -      +
    102A  GLU*     3.7     6.5    -      -       -      +
    104A  GLN*     1.3    75.9    -      -       -      +
    106A  ALA*     1.3    61.6    +      -       -      +
    108A  LYS*     3.6     8.3    +      -       +      +
    109A  GLU*     3.2    55.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  PRO*     3.5    25.6    -      -       +      -
    102A  GLU      3.0    14.1    +      -       -      +
    103A  TYR*     3.5     9.9    -      -       -      +
    104A  GLN      3.2     0.4    -      -       -      -
    105A  LYS*     1.3    77.9    -      -       -      +
    107A  LYS*     1.3    52.5    +      -       -      +
    109A  GLU*     3.4     8.5    +      -       -      +
    110A  PHE*     2.7    37.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  ILE*     5.7     7.3    -      -       -      +
     42A  GLY*     6.0     0.7    -      -       -      -
     43A  PRO*     4.0    20.3    -      -       +      +
    103A  TYR*     3.0    39.6    +      -       +      +
    104A  GLN*     3.7     7.0    -      -       -      +
    106A  ALA*     1.3    76.3    -      -       -      +
    108A  LYS*     1.3    53.3    +      -       -      +
    110A  PHE*     4.3     4.0    -      -       +      -
    111A  ASP*     2.5    85.2    +      -       -      +
     20E    T      3.9    28.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  GLN      3.1    14.1    +      -       -      +
    105A  LYS*     3.8     8.5    -      -       +      +
    107A  LYS*     1.3    78.3    -      -       -      +
    109A  GLU*     1.3    64.9    +      -       +      +
    111A  ASP*     3.9     3.2    -      -       -      +
    112A  GLU*     2.9    73.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  LYS*     3.2    48.8    +      -       +      +
    106A  ALA*     3.9     5.1    -      -       -      +
    108A  LYS*     1.3    83.1    -      -       +      +
    110A  PHE*     1.3    60.8    +      -       -      +
    112A  GLU*     3.7    10.2    +      -       -      +
    113A  LYS*     3.1    51.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  LEU*     3.3    31.0    -      -       +      -
     39A  ILE*     4.5     4.9    -      -       +      -
     41A  GLN*     4.1    10.3    -      -       +      -
     42A  GLY*     3.4    22.4    -      -       -      -
     43A  PRO*     3.6    23.6    -      -       +      -
    106A  ALA      2.7    22.8    +      -       -      +
    107A  LYS*     3.7     2.5    -      -       +      +
    109A  GLU*     1.3    72.4    -      -       -      +
    111A  ASP*     1.3    77.7    +      -       -      +
    113A  LYS*     3.0    20.1    +      -       +      +
    114A  LEU*     3.3    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  ILE*     4.7     3.8    -      -       -      +
    107A  LYS*     2.5    62.1    +      -       -      +
    108A  LYS*     4.1     2.9    -      -       -      +
    110A  PHE*     1.3    87.6    -      -       -      +
    112A  GLU*     1.3    62.3    +      -       +      +
    114A  LEU*     3.0    41.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 112 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  LYS*     2.9    60.4    +      -       +      +
    109A  GLU*     4.0     8.2    -      -       -      +
    111A  ASP*     1.3    76.5    -      -       -      +
    113A  LYS*     1.3    61.0    +      -       +      +
    114A  LEU      3.6     4.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 113 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  GLU*     3.1    42.0    +      -       -      +
    110A  PHE*     3.0    13.7    +      -       +      +
    112A  GLU*     1.3    80.5    -      -       +      +
    114A  LEU*     1.3    60.5    +      -       -      +
    115A  PRO*     4.0     2.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 114 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  ARG*     3.1    33.4    -      -       +      +
     38A  LEU*     4.7    10.1    -      -       +      -
     39A  ILE*     3.4    34.1    -      -       +      +
    110A  PHE*     3.3    19.6    +      -       +      +
    111A  ASP*     3.0    47.8    +      -       +      +
    112A  GLU      4.0     4.7    -      -       -      +
    113A  LYS*     1.3    81.1    -      -       -      +
    115A  PRO*     1.3    89.8    -      -       +      +
    116A  PRO*     3.6     2.9    -      -       +      +
----------------------------------------------------------
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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