Contacts of the helix formed by residues 473 - 494 (chain A) in PDB entry 3EE6


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 GLY 473 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275A  LEU*     6.1     0.2    -      -       -      -
    360A  ASP*     3.7    14.8    -      -       -      -
    407A  ILE*     4.0     9.5    -      -       -      +
    456A  SER*     2.7    30.4    +      -       -      -
    472A  SER*     1.3    76.4    -      -       -      +
    474A  THR*     1.3    61.3    +      -       -      -
    475A  SER*     3.2     5.6    -      -       -      -
    476A  ALA*     3.1    23.3    -      -       -      +
    477A  SER      3.7     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 474 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357A  ALA*     3.1    25.4    -      -       +      -
    358A  SER*     3.3     5.8    +      -       -      +
    359A  GLY*     3.2    32.9    +      -       -      +
    360A  ASP*     3.0    17.8    +      -       -      +
    388A  VAL      3.2    16.5    +      -       -      +
    389A  GLY      3.4    17.5    -      -       -      -
    390A  GLY*     3.8     3.2    +      -       -      -
    407A  ILE*     5.8     1.1    -      -       -      -
    408A  SER*     4.8     2.0    +      -       -      -
    409A  GLY      4.9     0.2    +      -       -      -
    456A  SER*     4.3     2.7    -      -       -      -
    473A  GLY*     1.3    70.4    -      -       -      -
    475A  SER*     1.3    57.0    +      -       -      +
    476A  ALA      3.1     4.5    -      -       -      -
    477A  SER*     3.0    17.2    +      -       -      -
    478A  THR*     3.1    23.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 475 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272A  GLU*     3.7    24.3    +      -       -      -
    275A  LEU*     3.9     9.7    -      -       -      +
    276A  ASP*     2.8    24.0    -      -       -      +
    324A  SER*     2.8    28.3    +      -       -      -
    357A  ALA*     4.3     8.8    -      -       -      +
    360A  ASP*     4.9     4.8    +      -       -      -
    473A  GLY*     4.9     2.9    -      -       -      -
    474A  THR*     1.3    78.2    -      -       -      +
    476A  ALA*     1.3    58.7    +      -       -      +
    478A  THR*     4.7     1.6    -      -       -      -
    479A  PRO*     3.0    16.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 476 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275A  LEU*     3.9    20.4    -      -       +      +
    279A  TYR*     5.0     0.9    -      -       -      +
    455A  LEU      4.0     1.3    -      -       -      +
    456A  SER*     4.3     1.6    -      -       -      +
    459A  TYR*     3.7    40.6    +      -       +      -
    471A  VAL      5.2     1.1    -      -       -      +
    473A  GLY      3.1    18.6    +      -       -      +
    474A  THR      3.1     0.2    -      -       -      -
    475A  SER*     1.3    79.9    -      -       -      +
    477A  SER*     1.3    63.1    +      -       -      +
    479A  PRO*     3.2    14.7    -      -       -      +
    480A  VAL*     3.6    14.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 477 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388A  VAL*     3.9     4.0    -      -       -      +
    389A  GLY      3.0    19.2    +      -       -      -
    454A  ALA*     3.1    39.1    +      -       -      +
    455A  LEU      3.3    10.3    -      -       -      -
    456A  SER*     4.1     1.2    -      -       -      -
    473A  GLY      3.7     0.5    +      -       -      -
    474A  THR*     3.0    24.7    +      -       -      -
    476A  ALA*     1.3    78.5    -      -       -      +
    478A  THR*     1.3    57.3    +      -       -      +
    480A  VAL*     3.2     5.0    +      -       -      +
    481A  PHE*     2.9    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 478 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  THR*     3.7    12.9    -      -       -      +
    323A  VAL      4.0     7.2    -      -       -      +
    324A  SER*     6.1     0.7    -      -       -      -
    355A  LEU*     3.7    40.1    -      -       +      +
    356A  PHE      3.7     2.1    -      -       -      -
    357A  ALA*     3.1    26.4    +      -       -      +
    388A  VAL*     3.7    14.8    -      -       +      +
    474A  THR      3.1    16.0    +      -       -      -
    475A  SER*     4.8     2.2    -      -       -      -
    477A  SER*     1.3    76.5    -      -       -      +
    479A  PRO*     1.3    64.9    -      -       +      +
    481A  PHE*     3.2     3.5    +      -       -      +
    482A  GLY*     2.8    26.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 479 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275A  LEU      4.8     2.7    -      -       -      +
    276A  ASP*     3.6    36.8    -      -       +      +
    279A  TYR*     4.4     2.7    -      -       +      -
    280A  LEU*     3.6    24.6    -      -       +      +
    283A  ALA*     4.1     0.3    -      -       -      +
    322A  THR*     3.9    19.1    -      -       +      +
    475A  SER      3.0    28.5    -      -       -      +
    476A  ALA*     3.2    12.8    -      -       -      +
    478A  THR*     1.3    90.5    -      -       +      +
    480A  VAL*     1.3    58.0    +      -       -      +
    483A  GLY*     2.9    24.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 480 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  ILE*     3.6    28.9    -      -       +      -
    209A  TYR*     3.7    32.8    -      -       +      -
    279A  TYR*     4.2    14.8    -      -       +      +
    283A  ALA*     3.3    20.9    -      -       +      +
    454A  ALA*     4.3     5.4    -      -       +      -
    459A  TYR*     3.6    21.1    -      -       +      +
    476A  ALA      3.6    15.0    +      -       -      +
    477A  SER*     3.2     9.3    +      -       -      +
    479A  PRO*     1.3    77.8    -      -       -      +
    481A  PHE*     1.3    65.7    +      -       -      +
    484A  ILE*     3.4    15.2    +      -       +      +
    551A  PRO*     5.4     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 481 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355A  LEU*     4.0     7.6    -      -       +      -
    386A  THR*     5.4     0.4    -      -       +      -
    388A  VAL*     4.1    12.1    -      -       +      -
    452A  VAL*     3.5    43.3    -      -       +      -
    453A  ALA      3.5    24.2    -      -       -      -
    454A  ALA*     4.6     1.5    -      -       +      +
    477A  SER      2.9    16.2    +      -       -      +
    478A  THR      3.7     3.6    -      -       -      +
    480A  VAL*     1.3    78.9    -      -       -      +
    482A  GLY*     1.3    61.7    +      -       -      +
    484A  ILE*     3.2     8.9    +      -       +      +
    485A  LEU*     3.1    51.3    +      -       +      +
    503A  LEU*     5.0     5.4    -      -       +      -
    507A  LEU*     6.2     0.7    -      -       +      -
    515A  LEU*     4.0    15.3    -      -       +      -
    549A  GLY      4.0     5.8    -      -       -      -
    551A  PRO*     4.0    21.3    -      -       +      -
    556A  LEU*     4.6     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 482 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    280A  LEU*     4.3     2.9    -      -       -      -
    320A  VAL*     3.5    15.1    -      -       -      +
    322A  THR*     3.6    17.3    -      -       -      -
    355A  LEU*     4.0     8.9    -      -       -      +
    478A  THR      2.8    16.3    +      -       -      -
    480A  VAL      3.3     0.2    -      -       -      -
    481A  PHE*     1.3    77.6    -      -       -      +
    483A  GLY*     1.3    56.0    +      -       -      +
    485A  LEU*     3.1     5.6    +      -       -      +
    486A  SER*     2.9    28.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 483 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  GLN*     3.8    11.2    -      -       -      -
    280A  LEU*     3.7     4.8    -      -       -      +
    283A  ALA      4.0     0.9    -      -       -      -
    284A  GLY*     3.2    38.3    -      -       -      -
    479A  PRO      2.9    16.8    +      -       -      -
    481A  PHE      3.3     0.2    -      -       -      -
    482A  GLY*     1.3    76.0    -      -       -      +
    484A  ILE*     1.3    61.2    +      -       -      +
    486A  SER*     3.2     2.6    +      -       -      -
    487A  LEU*     3.2    17.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 484 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  ILE*     5.4     1.1    -      -       +      -
    209A  TYR*     4.0    14.6    -      -       +      -
    211A  LEU*     4.0    28.9    -      -       +      -
    283A  ALA*     4.0    16.8    -      -       +      +
    480A  VAL*     3.4    19.1    +      -       +      +
    481A  PHE*     3.2     8.9    +      -       +      +
    482A  GLY      3.2     0.4    -      -       -      -
    483A  GLY*     1.3    73.6    -      -       -      +
    485A  LEU*     1.3    67.4    +      -       +      +
    487A  LEU*     3.4     8.6    +      -       -      +
    488A  ILE*     3.3    22.0    +      -       +      +
    551A  PRO*     3.9    27.6    -      -       +      -
    553A  PHE*     4.0    20.5    -      -       +      -
    556A  LEU*     4.2    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 485 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  VAL*     4.4     8.1    -      -       +      -
    353A  THR*     4.1    18.8    -      -       +      -
    355A  LEU*     3.9    19.7    -      -       +      -
    386A  THR*     5.4     0.4    -      -       +      -
    481A  PHE*     3.1    41.1    +      -       +      +
    482A  GLY*     3.3     9.6    -      -       -      +
    484A  ILE*     1.3    80.8    -      -       +      +
    486A  SER*     1.3    56.7    +      -       -      +
    488A  ILE*     3.1    12.8    +      -       +      +
    489A  ASN*     3.0    27.0    +      -       -      +
    500A  LEU*     4.2    21.3    -      -       +      +
    503A  LEU*     4.0    25.6    -      -       +      -
    556A  LEU*     5.2     4.5    -      -       +      -
    560A  LEU*     4.5    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 486 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  ASN*     2.8    37.3    +      -       -      -
    224A  SER      4.1     5.7    +      -       -      -
    225A  GLN*     3.0    43.1    +      -       -      +
    287A  ILE*     4.0     6.7    -      -       -      +
    320A  VAL*     3.9    16.8    -      -       -      +
    482A  GLY      2.9    12.9    +      -       -      -
    483A  GLY      3.5     2.5    -      -       -      -
    484A  ILE      3.2     0.2    -      -       -      -
    485A  LEU*     1.3    79.2    -      -       -      +
    487A  LEU*     1.3    59.5    +      -       -      +
    489A  ASN*     3.3     4.0    +      -       -      +
    490A  GLU      3.2     5.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 487 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  ARG*     5.5     0.2    -      -       -      +
    211A  LEU*     3.9    11.7    -      -       +      -
    215A  ASP      3.3    26.7    -      -       -      +
    216A  VAL*     3.6    31.9    -      -       -      +
    217A  GLY*     3.9     7.2    -      -       -      +
    283A  ALA      4.5     8.3    -      -       -      +
    284A  GLY*     5.5     0.9    -      -       -      -
    285A  ALA      5.2     0.9    -      -       -      +
    287A  ILE*     4.1    12.3    -      -       +      +
    483A  GLY      3.2    10.8    +      -       -      +
    484A  ILE*     3.5    10.5    -      -       -      +
    486A  SER*     1.3    74.2    -      -       -      +
    488A  ILE*     1.3    66.1    +      -       -      +
    490A  GLU*     3.1    17.7    +      -       +      +
    491A  HIS*     3.2    29.4    +      -       +      -
    553A  PHE*     3.9    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 488 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    484A  ILE      3.3    12.1    +      -       -      +
    485A  LEU*     3.1    14.3    +      -       +      +
    487A  LEU*     1.3    76.9    -      -       -      +
    489A  ASN*     1.3    63.5    +      -       -      +
    491A  HIS*     3.3     8.7    +      -       -      +
    492A  ARG*     3.2    27.3    +      -       +      +
    500A  LEU*     3.8    21.3    -      -       +      -
    553A  PHE*     4.0    16.4    -      -       +      -
    556A  LEU*     3.9    24.5    -      -       +      +
    557A  LEU*     3.9    36.8    -      -       +      +
    560A  LEU*     4.1    23.8    -      -       +      +
    561A  LEU*     5.6     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 489 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  ASN*     3.9    10.1    +      -       -      +
    319A  HIS*     3.3    30.5    -      -       -      +
    320A  VAL*     3.8    15.9    -      -       -      +
    353A  THR*     4.7     4.4    +      -       -      -
    485A  LEU      3.0    12.2    +      -       -      +
    486A  SER      3.4    11.2    -      -       -      +
    487A  LEU      3.2     0.4    -      -       -      -
    488A  ILE*     1.3    77.6    -      -       -      +
    490A  GLU*     1.3    56.2    +      -       -      +
    492A  ARG*     3.1     5.3    +      -       -      +
    493A  ILE*     2.8    38.2    +      -       +      +
    499A  PRO*     3.6    14.1    -      -       -      +
    500A  LEU*     3.0    37.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 490 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  GLY*     3.7    10.5    -      -       -      -
    218A  SER*     3.6    33.8    +      -       -      +
    219A  GLY*     4.2     5.4    +      -       -      -
    221A  SER*     4.6     8.1    -      -       -      -
    223A  ASN*     2.8    38.8    -      -       +      +
    287A  ILE*     4.0    13.1    -      -       +      +
    486A  SER      3.2     4.5    +      -       -      +
    487A  LEU*     3.1    16.4    +      -       +      +
    489A  ASN*     1.3    80.3    -      -       -      +
    491A  HIS*     1.3    58.9    +      -       -      +
    493A  ILE*     4.7     2.9    -      -       -      -
    494A  LEU*     3.0    61.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 491 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ASP*     5.5     6.6    +      -       -      -
    216A  VAL      5.7     2.0    -      -       -      -
    487A  LEU*     3.2    34.0    +      -       +      +
    488A  ILE      3.7     7.9    -      -       -      +
    489A  ASN      3.3     0.6    -      -       -      -
    490A  GLU*     1.3    80.6    -      -       +      +
    492A  ARG*     1.3    54.8    +      -       -      +
    494A  LEU*     2.4    23.0    -      -       -      +
    495A  SER*     3.1     9.4    +      -       -      -
    553A  PHE*     4.5    18.8    -      +       -      -
    557A  LEU*     4.2    20.0    -      -       +      +
    561A  LEU*     3.6    34.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 492 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  TYR*     4.2    16.4    +      -       -      -
    488A  ILE*     3.2    16.6    +      -       +      +
    489A  ASN*     3.1    11.5    +      -       -      +
    491A  HIS*     1.3    75.7    -      -       -      +
    493A  ILE*     1.3    51.1    -      -       -      +
    494A  LEU      2.8    16.0    -      -       -      +
    495A  SER*     3.2     4.8    +      -       -      -
    497A  ARG*     2.7    41.7    +      -       +      +
    498A  PRO*     2.8    51.2    +      -       -      +
    499A  PRO      4.5     2.0    +      -       -      -
    500A  LEU*     3.7    30.6    -      -       -      +
    506A  ARG*     3.8    11.9    -      -       -      +
    560A  LEU      2.9    27.2    +      -       -      +
    561A  LEU*     3.6    19.4    -      -       +      +
    562A  ASN      4.2     2.2    +      -       -      -
    580A   CL      3.8    19.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 493 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  SER*     4.0    18.8    -      -       -      +
    223A  ASN*     3.7    19.1    -      -       +      +
    319A  HIS*     3.7    34.8    -      -       +      +
    489A  ASN*     2.8    26.9    +      -       +      +
    490A  GLU*     4.2     2.0    -      -       -      +
    492A  ARG*     1.3    70.7    -      -       -      +
    494A  LEU*     1.3    58.9    +      -       +      +
    496A  GLY*     2.8    24.8    +      -       -      -
    497A  ARG      3.5    16.8    -      -       -      +
    498A  PRO      5.0     0.7    -      -       -      -
    499A  PRO*     4.7    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 494 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  SER*     3.8    15.0    -      -       -      +
    220A  THR      6.0     1.3    -      -       -      +
    221A  SER*     4.5    19.1    -      -       -      -
    490A  GLU*     3.0    44.5    +      -       +      +
    491A  HIS*     2.4    32.6    -      -       -      +
    492A  ARG      2.8     2.3    -      -       -      +
    493A  ILE*     1.3    74.8    -      -       +      +
    495A  SER*     1.3    62.1    +      -       -      +
----------------------------------------------------------
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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