Contacts of the helix formed by residues 578 - 604 (chain A) in PDB entry 5CGD


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 PRO 578 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573A  LEU*     3.8    20.2    -      -       +      -
    576A  GLY      3.6     9.4    -      -       -      +
    577A  ASP*     1.3    89.4    -      -       -      +
    579A  ALA*     1.3    64.6    +      -       +      +
    580A  PRO      3.6     0.7    -      -       -      -
    581A  ILE*     3.2    24.7    -      -       +      +
    582A  ALA*     3.3    14.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 579 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    577A  ASP*     3.6    11.9    -      -       -      +
    578A  PRO*     1.3    78.6    -      -       +      +
    580A  PRO*     1.4    75.1    -      -       +      +
    582A  ALA*     3.2     5.4    +      -       -      +
    583A  ALA*     3.1    23.2    +      -       -      +
    730A  TYR*     3.9     4.7    -      -       -      +
    800A  ILE*     3.8    32.6    -      -       +      +
    804A  PHE*     4.5     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 580 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    569A  PRO*     4.3     9.4    -      -       +      +
    572A  TYR*     3.9    24.7    -      -       +      -
    577A  ASP*     3.5    22.4    -      -       -      +
    579A  ALA*     1.4    94.2    -      -       +      +
    581A  ILE*     1.3    60.5    +      -       -      +
    583A  ALA*     3.7     3.0    +      -       +      +
    584A  VAL*     3.2    28.2    +      -       -      +
    636A  ILE*     4.2    16.0    -      -       +      +
    729A  VAL*     3.7    27.6    -      -       +      -
    730A  TYR*     3.7     7.6    -      -       +      +
    800A  ILE*     4.1     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 581 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    569A  PRO*     3.9    27.1    -      -       +      +
    570A  VAL*     4.5    11.4    -      -       +      -
    573A  LEU*     3.9    31.2    -      -       +      -
    577A  ASP      4.9     0.2    -      -       -      +
    578A  PRO*     3.2    26.9    -      -       +      +
    580A  PRO*     1.3    80.7    -      -       -      +
    582A  ALA*     1.3    66.2    +      -       +      +
    584A  VAL*     3.6     2.7    +      -       +      +
    585A  VAL*     3.2    30.7    +      -       +      +
   4002A  OLA      4.0    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 582 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578A  PRO      3.3    16.2    -      -       -      +
    579A  ALA*     3.2     5.8    +      -       -      +
    581A  ILE*     1.3    81.8    -      -       +      +
    583A  ALA*     1.3    58.9    +      -       -      +
    585A  VAL*     3.5     6.1    +      -       -      +
    586A  PHE*     3.0    30.4    +      -       -      +
    804A  PHE*     4.5    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 583 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579A  ALA      3.1    15.0    +      -       -      +
    580A  PRO*     4.1     6.5    -      -       +      +
    581A  ILE      3.4     0.2    -      -       -      -
    582A  ALA*     1.3    75.8    -      -       -      +
    584A  VAL*     1.3    57.6    +      -       -      +
    586A  PHE*     3.6     4.8    -      -       -      +
    587A  ALA*     3.0    27.4    +      -       -      +
    632A  THR*     3.7     9.9    +      -       +      +
    636A  ILE*     4.9     4.0    -      -       +      -
    800A  ILE*     4.9     3.6    -      -       +      -
    803A  CYS*     4.0    33.2    -      -       +      -
    804A  PHE*     4.0    15.6    -      -       +      -
    807A  SER*     5.0     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 584 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    569A  PRO*     4.4    12.8    -      -       +      -
    580A  PRO      3.2    18.9    +      -       -      +
    581A  ILE*     3.8     6.5    -      -       +      +
    582A  ALA      3.2     0.4    -      -       -      -
    583A  ALA*     1.3    75.4    -      -       -      +
    585A  VAL*     1.3    56.2    +      -       -      +
    587A  ALA*     3.0     6.9    +      -       -      +
    588A  CYS*     2.7    55.5    +      -       -      -
    632A  THR*     4.6     3.6    -      -       -      +
    633A  PHE*     3.9    20.2    -      -       +      -
    636A  ILE*     4.4    21.3    -      -       +      -
   4002A  OLA      4.2    13.7    -      -       +      -
   4004A  OLA      4.0    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 585 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581A  ILE*     3.2    28.6    +      -       +      +
    582A  ALA*     3.9     5.4    -      -       -      +
    584A  VAL*     1.3    76.2    -      -       -      +
    586A  PHE*     1.3    58.6    +      -       -      +
    588A  CYS*     3.2     7.9    +      -       -      +
    589A  LEU*     2.8    48.8    +      -       +      +
   4002A  OLA      4.3    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 586 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    582A  ALA      3.0    17.9    +      -       -      +
    583A  ALA*     3.6     7.2    -      -       -      +
    585A  VAL*     1.3    78.6    -      -       -      +
    587A  ALA*     1.3    57.3    +      -       -      +
    589A  LEU*     3.4     9.2    +      -       +      +
    590A  GLY*     2.9    24.2    +      -       -      -
    629A  TYR*     4.3     3.0    -      +       -      -
    804A  PHE*     4.2    27.8    -      +       +      -
    807A  SER*     3.8    29.8    -      -       -      +
    808A  LEU*     4.2    12.8    -      -       +      -
    811A  THR*     3.4    31.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 587 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    583A  ALA      3.0    12.6    +      -       -      +
    584A  VAL      3.4     4.0    -      -       -      +
    586A  PHE*     1.3    76.9    -      -       -      +
    588A  CYS*     1.3    59.4    +      -       -      +
    590A  GLY*     3.2     1.0    +      -       -      -
    591A  LEU*     2.9    34.1    +      -       -      +
    629A  TYR*     3.4    28.8    -      -       +      +
    632A  THR*     3.2    31.4    -      -       +      +
    633A  PHE*     3.8    10.5    -      -       +      -
    807A  SER*     4.7     0.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 588 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584A  VAL*     2.7    44.6    +      -       -      +
    585A  VAL      3.2     4.7    +      -       -      +
    587A  ALA*     1.3    72.0    -      -       -      +
    589A  LEU*     1.3    59.0    +      -       -      +
    591A  LEU*     3.3     8.0    +      -       -      +
    592A  LEU*     3.0    35.9    +      -       +      +
    633A  PHE*     3.8    13.7    -      -       -      -
   4002A  OLA      3.9    23.1    -      -       +      -
   4004A  OLA      3.8    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 589 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585A  VAL*     2.8    35.9    +      -       +      +
    586A  PHE*     3.8     9.0    -      -       +      +
    588A  CYS*     1.3    75.5    -      -       -      +
    590A  GLY*     1.3    56.9    +      -       -      +
    592A  LEU*     3.8     8.0    -      -       +      +
    593A  ALA*     3.1    29.1    +      -       -      +
   4002A  OLA      3.8    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 590 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    586A  PHE*     2.9    10.4    +      -       -      -
    587A  ALA      3.2     4.7    +      -       -      -
    588A  CYS      3.1     0.4    -      -       -      -
    589A  LEU*     1.3    75.3    -      -       -      +
    591A  LEU*     1.3    55.2    +      -       -      +
    593A  ALA*     3.3     5.9    +      -       -      +
    594A  THR*     2.8    35.9    +      -       -      -
    629A  TYR*     3.5    37.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 591 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    587A  ALA      2.9    17.0    +      -       -      +
    588A  CYS*     3.8     6.7    -      -       -      +
    590A  GLY*     1.3    75.5    -      -       -      +
    592A  LEU*     1.3    57.7    +      -       -      +
    594A  THR*     3.4     4.3    +      -       -      -
    595A  LEU*     2.8    31.9    +      -       -      +
    626A  CYS*     3.6    43.5    -      -       -      +
    629A  TYR*     3.7    12.1    -      -       +      -
    630A  LEU*     3.7    23.8    -      -       +      -
    633A  PHE*     3.9    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 592 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588A  CYS*     3.0    21.0    +      -       +      +
    589A  LEU*     3.8    10.8    -      -       +      +
    590A  GLY      3.3     0.2    -      -       -      -
    591A  LEU*     1.3    77.0    -      -       +      +
    593A  ALA*     1.3    56.6    +      -       -      +
    595A  LEU*     3.3    17.6    +      -       +      +
    596A  PHE*     2.9    29.7    +      -       -      +
   4002A  OLA      3.8    40.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 593 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    589A  LEU      3.1    18.4    +      -       -      +
    590A  GLY*     3.7     5.4    -      -       -      +
    592A  LEU*     1.3    77.1    -      -       -      +
    594A  THR*     1.3    57.4    +      -       -      +
    596A  PHE*     3.5     6.3    +      -       -      +
    597A  VAL*     3.0    34.9    +      -       +      +
    814A  LEU*     4.0    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 594 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    590A  GLY      2.8    22.1    +      -       -      -
    591A  LEU*     3.8     6.1    -      -       -      -
    593A  ALA*     1.3    75.3    -      -       -      +
    595A  LEU*     1.3    57.3    +      -       -      +
    597A  VAL*     4.0     3.4    -      -       -      +
    598A  THR*     2.5    46.4    +      -       -      +
    622A  LEU*     3.7    35.9    -      -       +      +
    625A  ILE*     3.9     4.5    -      -       +      +
    626A  CYS*     4.4    16.2    -      -       +      +
    629A  TYR*     3.6    11.4    -      -       -      -
    814A  LEU*     3.4    16.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 595 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    591A  LEU      2.8    18.6    +      -       -      +
    592A  LEU*     3.5    19.5    -      -       +      +
    594A  THR*     1.3    76.5    -      -       -      +
    596A  PHE*     1.3    63.4    +      -       -      +
    598A  THR*     3.5     5.8    +      -       -      -
    599A  VAL*     3.1    43.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 596 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    592A  LEU      2.9    17.2    +      -       -      +
    593A  ALA*     3.6     7.9    -      -       -      +
    594A  THR      3.3     0.2    -      -       -      -
    595A  LEU*     1.3    78.4    -      -       -      +
    597A  VAL*     1.3    72.6    +      -       +      +
    599A  VAL*     3.3     5.2    +      -       -      +
    600A  VAL*     3.1    47.3    +      -       +      +
    822A  VAL*     4.0    16.4    -      -       +      -
    826A  LEU*     4.2    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 597 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    593A  ALA*     3.0    18.0    +      -       +      +
    594A  THR*     4.0     3.1    -      -       -      +
    596A  PHE*     1.3    89.3    -      -       +      +
    598A  THR*     1.3    62.5    +      -       -      +
    600A  VAL*     3.4     7.3    +      -       -      +
    601A  PHE*     3.3    46.1    +      -       +      -
    622A  LEU*     4.0    12.6    -      -       +      -
    814A  LEU*     4.3    16.6    -      -       +      -
    818A  PHE*     3.8    18.2    -      -       +      -
    819A  VAL*     5.2     9.9    -      -       +      -
    822A  VAL*     4.0    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 598 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    594A  THR*     2.5    31.2    +      -       -      +
    595A  LEU*     3.8     7.6    -      -       +      -
    597A  VAL*     1.3    74.9    -      -       -      +
    599A  VAL*     1.3    65.1    +      -       +      +
    601A  PHE*     3.2     5.8    +      -       -      +
    602A  ILE*     3.2    35.4    +      -       +      +
    619A  TYR*     5.0     9.5    -      -       +      -
    622A  LEU*     3.7    29.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 599 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    595A  LEU*     3.1    33.8    +      -       +      +
    596A  PHE*     3.8     5.6    -      -       -      +
    598A  THR*     1.3    76.5    -      -       +      +
    600A  VAL*     1.3    64.8    +      -       +      +
    602A  ILE*     3.1    15.1    +      -       +      +
    603A  ILE*     3.0    42.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 600 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    596A  PHE*     3.1    44.2    +      -       +      +
    597A  VAL*     3.5    10.5    -      -       -      +
    599A  VAL*     1.3    79.3    -      -       +      +
    601A  PHE*     1.3    63.3    +      -       +      +
    603A  ILE*     4.9     3.1    -      -       +      -
    604A  TYR*     3.1    42.1    +      -       +      +
    822A  VAL*     4.3    17.0    -      -       +      -
    825A  ILE*     3.8    29.6    -      -       +      -
    826A  LEU*     4.8     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 601 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    597A  VAL*     3.3    24.0    +      -       +      -
    598A  THR*     3.2     7.5    +      -       -      +
    599A  VAL      3.2     0.4    -      -       -      -
    600A  VAL*     1.3    81.0    -      -       +      +
    602A  ILE*     1.3    64.7    -      -       -      +
    604A  TYR      4.7     1.8    -      -       -      +
    605A  ARG*     3.3    26.3    +      -       -      +
    610A  VAL*     3.6    39.4    -      -       +      +
    615A  ARG*     5.6     0.2    -      -       -      -
    618A  CYS*     5.6     6.7    -      -       +      -
    619A  TYR*     4.1    16.9    +      +       +      -
    622A  LEU*     4.0    14.4    -      -       +      -
    818A  PHE*     3.4    29.6    -      +       -      -
    821A  LYS*     3.9    38.4    -      -       +      -
    822A  VAL*     4.2    19.5    -      -       +      -
    825A  ILE*     5.1     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 602 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    598A  THR*     3.2    26.6    +      -       +      +
    599A  VAL*     3.1    17.1    +      -       +      +
    601A  PHE*     1.3    77.0    -      -       -      +
    603A  ILE*     1.3    70.9    +      -       +      +
    605A  ARG*     3.8    33.3    +      -       -      +
    619A  TYR*     4.0    21.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 603 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    599A  VAL*     3.0    35.0    +      -       +      +
    600A  VAL*     5.0     1.6    -      -       -      -
    602A  ILE*     1.3    83.1    -      -       +      +
    604A  TYR*     1.3    89.9    +      -       +      +
    605A  ARG*     3.3     4.9    +      -       -      +
    606A  ASP*     4.5     6.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 604 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    600A  VAL*     3.1    34.7    +      -       +      +
    601A  PHE      3.6     3.8    -      -       -      -
    603A  ILE*     1.3   101.3    -      -       +      +
    605A  ARG*     1.3    60.9    +      -       -      +
    606A  ASP*     3.2     4.7    +      -       -      +
    607A  THR*     3.6    19.0    +      -       -      +
    610A  VAL*     3.4    20.1    -      -       -      +
    825A  ILE*     3.4    32.4    -      -       +      +
    826A  LEU*     4.2    24.7    -      -       +      +
----------------------------------------------------------
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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