Contacts of the helix formed by residues 609 - 632 (chain A) in PDB entry 6V3O


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 609 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605A  GLY*     2.8    23.6    +      -       -      -
    608A  ALA*     1.3    77.2    -      -       -      +
    610A  ARG*     1.3    65.0    +      -       -      -
    611A  LEU      3.5     2.2    -      -       -      -
    612A  SER*     4.3     0.9    -      -       -      -
    613A  ALA*     3.2    20.1    +      -       -      +
    724A  ALA*     5.6     1.6    -      -       -      -
    728A  TYR*     3.4    29.3    -      -       -      -
    789A  PRO      5.2     0.2    -      -       -      -
    792A  LEU      4.3     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 610 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601A  TYR*     4.5    14.1    +      -       -      +
    602A  SER*     4.5    11.3    -      -       -      +
    605A  GLY*     4.2    12.2    +      -       -      -
    609A  GLY*     1.3    72.5    -      -       -      -
    611A  LEU*     1.3    59.5    +      -       -      +
    613A  ALA*     3.3     3.5    +      -       -      +
    614A  ALA*     2.9    31.5    +      -       +      +
    642A  GLY      2.5    27.2    +      -       -      -
    643A  GLY*     4.7     2.0    -      -       -      -
    644A  THR*     4.7     3.0    -      -       -      +
    778A  ILE*     5.7     0.6    -      -       -      +
    789A  PRO      4.2     7.4    +      -       -      +
    790A  VAL*     3.1    36.3    -      -       -      +
    792A  LEU      4.5     5.1    +      -       -      -
    794A  VAL*     5.2     4.3    -      -       +      -
    825A  THR*     5.9     5.2    -      -       +      -
    828A  LEU*     3.3    32.0    -      -       -      +
    829A  LEU*     4.8     9.4    -      -       +      -
    970A  GLY*     3.2    35.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 611 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609A  GLY      3.5     0.2    -      -       -      -
    610A  ARG*     1.3    78.6    -      -       -      +
    612A  SER*     1.3    63.8    +      -       -      +
    614A  ALA*     3.2     6.3    +      -       +      +
    615A  TRP*     3.1    21.5    +      -       -      +
    717A  MET*     4.2    22.0    -      -       +      -
    720A  MET*     3.8    36.3    -      -       +      +
    721A  ALA*     5.3     1.8    -      -       -      +
    724A  ALA*     4.4    11.1    -      -       +      +
    794A  VAL*     3.7    28.4    -      -       +      +
    797A  ALA*     3.9    17.9    -      -       +      -
    798A  PHE*     4.8     5.6    -      -       +      -
    821A  PHE*     5.9     0.2    -      -       +      -
    822A  PHE*     5.1     9.2    -      -       +      -
    825A  THR*     4.4    21.3    -      -       +      -
    826A  LEU*     5.6     2.5    -      -       +      -
    829A  LEU*     6.1     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 612 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    568A  LEU*     4.6     6.7    -      -       -      +
    608A  ALA*     3.3    17.4    +      -       -      -
    609A  GLY      3.8     0.8    +      -       -      -
    610A  ARG      3.4     0.4    -      -       -      -
    611A  LEU*     1.3    76.3    -      -       -      +
    613A  ALA*     1.3    58.2    +      -       -      +
    615A  TRP*     3.3     1.8    +      -       -      +
    616A  GLN*     2.9    32.7    +      -       -      +
    721A  ALA*     3.1    29.5    +      -       -      +
    724A  ALA*     3.6     6.1    -      -       -      +
    725A  THR*     2.8    33.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 613 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    568A  LEU*     4.0    12.9    -      -       +      +
    571A  LEU*     4.9     2.4    -      -       -      +
    601A  TYR*     4.8     3.6    -      -       -      +
    604A  SER*     3.7    16.2    -      -       -      +
    605A  GLY*     3.6    25.1    -      -       -      +
    609A  GLY      3.2    18.1    +      -       -      +
    610A  ARG*     3.6     5.2    -      -       -      +
    612A  SER*     1.3    79.3    -      -       -      +
    614A  ALA*     1.3    56.8    +      -       -      +
    616A  GLN*     3.5     1.2    +      -       -      +
    617A  LEU*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 614 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601A  TYR*     6.2     3.8    -      -       +      -
    610A  ARG*     2.9    21.0    +      -       +      +
    611A  LEU*     3.6     5.8    -      -       +      +
    612A  SER      3.2     0.4    -      -       -      -
    613A  ALA*     1.3    75.7    -      -       -      +
    615A  TRP*     1.3    61.4    +      -       -      +
    617A  LEU*     3.5     9.4    +      -       -      +
    618A  TYR      3.2    17.3    +      -       -      -
    821A  PHE*     3.6    21.9    -      -       +      -
    825A  THR*     4.1    25.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 615 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    611A  LEU      3.1    12.3    +      -       -      +
    612A  SER*     4.0     4.0    -      -       -      +
    614A  ALA*     1.3    74.8    -      -       -      +
    616A  GLN*     1.3    67.1    +      -       -      +
    617A  LEU      3.2     0.4    -      -       -      -
    618A  TYR*     3.4    23.8    +      +       +      -
    619A  ARG*     3.2    43.3    +      -       +      +
    714A  ARG*     3.9    39.7    -      -       +      -
    717A  MET*     3.5    50.3    -      -       +      +
    718A  ASP*     2.8    26.5    +      -       -      -
    721A  ALA*     4.3    10.8    -      -       +      -
    819A  TRP*     3.6    27.8    -      +       -      -
    821A  PHE*     4.0    16.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLN 616 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    568A  LEU*     4.3    19.7    -      -       +      +
    571A  LEU*     3.7    24.0    +      -       +      -
    572A  GLN*     3.1    39.2    +      -       -      +
    612A  SER      2.9    17.4    +      -       -      +
    613A  ALA      4.0     2.7    -      -       -      +
    615A  TRP*     1.3    79.0    -      -       -      +
    617A  LEU*     1.3    56.6    +      -       -      +
    619A  ARG*     3.3    30.0    +      -       -      +
    620A  ALA*     2.8    27.8    +      -       -      +
    623A  GLU*     5.5     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 617 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571A  LEU*     4.5    16.3    -      -       +      +
    599A  VAL*     3.7    37.5    -      -       +      -
    600A  GLY      5.7     4.5    -      -       -      +
    601A  TYR*     3.3    47.6    -      -       +      +
    613A  ALA      2.9    18.8    +      -       -      +
    614A  ALA*     3.6     9.0    -      -       -      +
    615A  TRP      3.2     0.2    -      -       -      -
    616A  GLN*     1.3    73.8    -      -       -      +
    618A  TYR*     1.3    66.8    +      -       -      +
    620A  ALA*     3.1     4.8    +      -       +      +
    621A  GLN*     2.9    44.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 618 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    614A  ALA      3.2    10.5    +      -       -      +
    615A  TRP*     3.8    30.5    -      +       +      +
    616A  GLN      3.4     0.2    -      -       -      -
    617A  LEU*     1.3    78.4    -      -       -      +
    619A  ARG*     1.3    63.7    +      -       -      +
    621A  GLN*     3.6    10.6    +      -       -      +
    622A  GLU*     3.1    47.7    +      -       -      +
    658A  SER      4.2     5.8    -      -       -      -
    659A  GLN      4.5     0.4    +      -       -      -
    660A  PRO*     3.7    39.8    -      -       +      +
    661A  PRO*     3.9     9.2    -      -       -      +
    706A  PRO*     5.6     2.0    -      -       +      +
    707A  VAL      4.8     1.9    +      -       -      -
    709A  PRO*     3.6    32.9    -      -       +      +
    714A  ARG*     4.7     0.9    -      -       -      -
    819A  TRP*     4.5     4.1    +      +       -      -
    821A  PHE*     3.9    38.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with ARG 619 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    615A  TRP*     3.2    55.9    +      -       +      +
    616A  GLN*     3.8    25.3    +      -       -      +
    617A  LEU      3.2     0.4    -      -       -      -
    618A  TYR*     1.3    75.9    -      -       -      +
    620A  ALA*     1.3    60.4    +      -       -      +
    622A  GLU*     3.3    15.3    -      -       -      +
    623A  GLU*     2.9    59.1    +      -       -      +
    714A  ARG*     4.7     4.7    -      -       -      +
    718A  ASP*     4.5     7.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 620 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571A  LEU*     3.8    42.6    -      -       +      +
    574A  ALA*     5.1     1.8    -      -       +      -
    575A  PRO*     4.8     6.7    -      -       -      -
    599A  VAL*     6.1     0.9    -      -       +      -
    616A  GLN*     2.8    21.2    +      -       -      +
    617A  LEU*     3.1     5.1    +      -       +      +
    619A  ARG*     1.3    73.4    -      -       -      +
    621A  GLN*     1.3    60.2    +      -       -      +
    623A  GLU*     3.4     2.6    +      -       -      +
    624A  MET*     2.9    43.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 621 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    599A  VAL*     5.0     3.5    -      -       +      +
    601A  TYR*     4.7     0.2    +      -       -      -
    617A  LEU*     2.9    44.4    +      -       +      +
    618A  TYR*     3.8     8.3    -      -       -      +
    620A  ALA*     1.3    77.7    -      -       +      +
    622A  GLU*     1.3    64.0    +      -       -      +
    624A  MET*     3.8     7.6    -      -       -      +
    625A  ALA*     2.9    26.3    +      -       -      +
    635A  LEU*     5.3     0.7    -      -       -      +
    637A  LEU*     3.5    29.2    -      -       +      +
    639A  HIS*     3.5    13.3    -      -       -      -
    659A  GLN*     3.0    24.3    +      -       -      +
    660A  PRO*     3.3    28.6    -      -       +      +
    663A  THR*     4.1    12.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 622 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618A  TYR*     3.1    36.5    +      -       +      +
    619A  ARG*     3.3    16.7    -      -       -      +
    621A  GLN*     1.3    78.7    -      -       -      +
    623A  GLU*     1.3    66.1    +      -       +      +
    625A  ALA*     3.4     2.8    +      -       -      +
    626A  GLN*     3.0    40.3    +      -       +      +
    660A  PRO*     4.5    12.6    -      -       +      +
    661A  PRO*     5.6     3.4    -      -       +      +
    663A  THR*     5.5     0.2    -      -       -      -
    709A  PRO*     4.8     1.7    -      -       -      +
    714A  ARG*     2.7    41.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 623 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    572A  GLN      4.7     4.5    -      -       -      +
    575A  PRO*     3.3    30.5    -      -       +      +
    616A  GLN*     5.9     1.1    +      -       -      -
    619A  ARG*     2.9    56.3    +      -       -      +
    620A  ALA*     4.9     1.0    -      -       -      -
    622A  GLU*     1.3    75.8    -      -       +      +
    624A  MET*     1.3    66.2    +      -       -      +
    626A  GLN*     3.1    10.5    +      -       +      +
    627A  VAL*     3.0    25.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 624 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    565A  PHE*     3.9     9.0    -      -       +      -
    571A  LEU*     6.2     0.4    -      -       -      -
    574A  ALA*     4.3     9.4    -      -       +      -
    575A  PRO*     4.1    22.7    -      -       +      -
    578A  VAL*     3.3    32.4    -      -       +      +
    597A  VAL*     3.4    42.0    -      -       +      -
    599A  VAL*     5.6     5.6    -      -       -      -
    620A  ALA*     2.9    27.1    +      -       -      +
    621A  GLN*     3.8     5.6    -      -       -      +
    623A  GLU*     1.3    75.6    -      -       -      +
    625A  ALA*     1.3    57.7    +      -       -      +
    627A  VAL*     3.3     9.0    +      -       -      +
    628A  ALA*     2.9    29.3    +      -       -      +
    635A  LEU*     3.8    14.6    -      -       +      +
    637A  LEU*     4.8     9.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 625 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    621A  GLN      2.9    17.0    +      -       -      +
    622A  GLU*     3.6     6.3    -      -       -      +
    624A  MET*     1.3    78.7    -      -       -      +
    626A  GLN*     1.3    63.5    +      -       -      +
    628A  ALA*     3.2     4.4    +      -       -      +
    629A  LYS*     2.8    31.6    +      -       -      +
    635A  LEU*     4.1    12.0    -      -       +      +
    661A  PRO      5.2     1.6    -      -       -      +
    662A  ASP*     3.8    24.5    -      -       +      +
    663A  THR*     4.9     8.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 626 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622A  GLU*     3.0    37.8    +      -       +      +
    623A  GLU*     3.1     9.8    +      -       -      +
    625A  ALA*     1.3    82.2    -      -       -      +
    627A  VAL*     1.3    64.0    +      -       +      +
    629A  LYS*     3.5    13.5    +      -       -      +
    630A  ARG*     3.1    32.8    +      -       -      +
    661A  PRO      5.1     6.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 627 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575A  PRO*     4.0    22.4    -      -       +      +
    578A  VAL*     4.3     6.3    -      -       +      -
    579A  GLU*     3.5    42.8    -      -       +      +
    582A  PHE*     4.1     7.6    -      -       +      -
    623A  GLU*     3.0    16.9    +      -       +      +
    624A  MET*     3.6     9.2    -      -       -      +
    626A  GLN*     1.3    76.5    -      -       +      +
    628A  ALA*     1.3    63.5    +      -       -      +
    630A  ARG*     3.1    31.5    +      -       -      +
    631A  TYR*     3.2    21.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 628 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578A  VAL*     5.7     0.2    -      -       +      -
    582A  PHE*     3.9    21.8    -      -       +      -
    624A  MET      2.9    16.8    +      -       -      +
    625A  ALA*     3.2     5.1    +      -       -      +
    627A  VAL*     1.3    77.3    -      -       -      +
    629A  LYS*     1.3    61.5    +      -       -      +
    631A  TYR      3.3     1.4    +      -       -      -
    632A  GLY      3.0     4.7    +      -       -      -
    633A  VAL      2.9    43.0    +      -       -      +
    635A  LEU*     3.8    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 629 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    625A  ALA      2.8    20.1    +      -       -      +
    626A  GLN*     3.9    15.3    -      -       -      +
    628A  ALA*     1.3    72.2    -      -       -      +
    630A  ARG*     1.3    64.1    +      -       +      +
    632A  GLY*     3.2    11.9    +      -       -      -
    633A  VAL      4.4     2.2    +      -       -      -
    662A  ASP*     4.4    18.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 630 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579A  GLU*     2.6    39.1    +      -       -      -
    626A  GLN*     3.1    17.1    +      -       -      +
    627A  VAL*     3.1    30.1    +      -       -      +
    629A  LYS*     1.3    78.9    -      -       +      +
    631A  TYR*     1.3    74.7    +      -       +      +
    632A  GLY      3.6     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 631 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579A  GLU*     3.2    41.2    +      -       +      -
    582A  PHE*     3.7    48.7    -      +       +      -
    583A  SER*     2.8    31.3    +      -       -      -
    588A  MET*     3.6    20.7    -      -       +      +
    627A  VAL*     3.2    21.9    +      -       +      +
    628A  ALA      3.3     0.6    +      -       -      +
    629A  LYS      3.3     0.2    -      -       -      -
    630A  ARG*     1.3    90.9    +      -       +      +
    632A  GLY*     1.3    63.0    +      -       -      +
    633A  VAL*     3.4     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 632 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588A  MET*     5.6     0.7    -      -       -      +
    593A  GLY*     4.2    11.1    -      -       -      +
    628A  ALA      3.0     4.5    +      -       -      -
    629A  LYS*     3.2    11.6    +      -       -      -
    630A  ARG      3.3     1.2    +      -       -      -
    631A  TYR*     1.3    79.3    -      -       -      +
    633A  VAL*     1.3    60.4    +      -       -      +
----------------------------------------------------------
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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