Contacts of the helix formed by residues 603 - 628 (chain G) in PDB entry 6OD3


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 LYS 603 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    599G  LEU*     4.8     0.9    -      -       -      +
    600G  LYS*     3.0    41.5    +      -       +      +
    601G  SER      3.2     1.9    -      -       -      -
    602G  ASP*     1.3   108.8    +      -       -      +
    604G  PRO*     1.3    61.9    -      -       -      +
    605G  GLN*     3.0    10.1    -      -       +      +
    606G  THR*     2.6    39.3    +      -       +      +
    577H  GLU*     3.4    29.2    -      -       -      +
      3Y    T      4.4     8.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 604 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601G  SER      5.0     3.1    -      -       -      +
    602G  ASP      3.8     2.2    -      -       -      +
    603G  LYS*     1.3    84.5    -      -       -      +
    605G  GLN*     1.3    61.0    +      -       -      +
    606G  THR      3.2     0.4    -      -       -      -
    607G  LYS*     3.1    34.5    +      -       +      +
    608G  LEU*     3.5     4.3    +      -       -      +
    577H  GLU*     3.7    24.7    -      -       +      +
    578H  ARG      3.4    22.0    -      -       -      +
    579H  LEU*     3.7    35.4    -      -       +      +
    580H  ARG*     5.0     1.6    -      -       -      +
    584H  ILE*     3.8     9.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 605 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579E  LEU*     3.6    26.7    -      -       +      +
    583E  ASP*     4.3     6.2    +      -       -      -
    608F  LEU*     5.9     4.2    -      -       -      +
    603G  LYS*     3.0     7.4    -      -       +      -
    604G  PRO*     1.3    80.5    -      -       -      +
    606G  THR*     1.3    61.8    +      -       +      +
    608G  LEU*     3.3     8.5    +      -       +      +
    609G  LEU*     3.1    30.0    +      -       +      +
    577H  GLU*     5.4     8.2    +      -       -      +
    578H  ARG      4.6     2.8    +      -       -      +
    580H  ARG*     4.0    27.9    -      -       +      +
      4Y    A      5.4     3.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 606 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    576E  ARG*     5.2    11.4    -      -       -      +
    597G  LEU*     5.0     1.6    -      -       +      -
    598G  HIS      4.0    12.8    -      -       -      +
    599G  LEU*     3.4     6.1    -      -       -      +
    600G  LYS*     3.1    51.8    +      -       +      -
    603G  LYS*     2.6    26.2    +      -       +      +
    605G  GLN*     1.3    76.7    -      -       +      +
    607G  LYS*     1.3    60.1    +      -       -      +
    609G  LEU*     3.3    11.6    +      -       +      +
    610G  ILE*     2.9    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 607 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584G  ILE*     5.4     5.5    -      -       -      +
    585G  ASN*     3.1    26.7    +      -       -      -
    588G  PHE*     3.6    46.2    -      -       +      -
    599G  LEU*     3.6    23.6    -      -       +      -
    600G  LYS      5.9     0.7    -      -       -      -
    601G  SER*     5.9     3.6    -      -       -      +
    604G  PRO*     3.1    24.5    +      -       +      +
    606G  THR*     1.3    78.4    +      -       -      +
    608G  LEU*     1.3    61.3    +      -       -      +
    610G  ILE*     3.3     1.1    +      -       -      -
    611G  LEU*     3.1    29.2    +      -       -      +
    584H  ILE*     4.0    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 608 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579E  LEU*     3.9    22.4    -      -       +      -
    604G  PRO      3.5     3.3    +      -       -      +
    605G  GLN*     3.3    12.6    +      -       +      +
    607G  LYS*     1.3    78.4    -      -       -      +
    609G  LEU*     1.3    62.3    +      -       -      +
    611G  LEU*     3.3     4.8    +      -       -      +
    612G  HIS*     3.0    55.2    +      -       +      +
    580H  ARG*     3.8    34.8    -      -       +      +
    583H  ASP*     3.4    40.4    -      -       +      +
    584H  ILE*     3.9    14.9    -      -       +      +
    587H  ALA*     3.9     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 609 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575E  ALA*     3.4    38.0    -      -       +      +
    576E  ARG*     3.8    36.6    -      -       +      +
    579E  LEU*     3.7    26.0    -      -       +      -
    597G  LEU*     3.6    17.2    -      -       +      +
    605G  GLN*     3.1    27.8    +      -       +      +
    606G  THR*     3.3    11.9    +      -       +      +
    608G  LEU*     1.3    72.1    -      -       -      +
    610G  ILE*     1.3    60.8    +      -       -      +
    612G  HIS*     3.3     9.0    +      -       -      +
    613G  GLN*     2.8    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 610 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588G  PHE*     3.5    34.3    -      -       +      +
    591G  LEU*     3.8    31.6    -      -       +      -
    592G  GLY*     3.8    10.8    -      -       -      +
    595G  VAL*     4.6     3.0    -      -       +      +
    597G  LEU*     3.2    33.4    -      -       +      +
    599G  LEU*     3.8    24.5    -      -       +      -
    606G  THR      2.9    21.1    +      -       -      +
    607G  LYS      3.7     4.7    -      -       -      +
    608G  LEU      3.3     0.2    -      -       -      -
    609G  LEU*     1.3    75.3    -      -       -      +
    611G  LEU*     1.3    58.2    +      -       -      +
    613G  GLN*     3.8     5.2    -      -       -      +
    614G  ALA*     2.8    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 611 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588G  PHE*     3.9    17.7    -      -       +      -
    591G  LEU*     4.9     1.8    -      -       +      -
    607G  LYS      3.1    16.4    +      -       -      +
    608G  LEU*     3.6     3.6    -      -       -      +
    609G  LEU      3.3     0.2    -      -       -      -
    610G  ILE*     1.3    77.1    -      -       -      +
    612G  HIS*     1.3    62.7    +      -       -      +
    614G  ALA*     3.5     4.8    +      -       -      +
    615G  VAL*     3.2    29.3    +      -       -      +
    584H  ILE*     3.8    13.2    -      -       +      +
    587H  ALA*     3.6    32.8    -      -       +      +
    588H  PHE*     3.6    37.9    -      -       +      +
    591H  LEU*     3.7    25.8    -      -       +      +
    611H  LEU*     3.9    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 612 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575E  ALA*     4.9    11.9    +      -       +      -
    579E  LEU*     4.9    11.1    -      -       +      +
    582E  ARG*     6.5     0.7    -      -       -      -
    608G  LEU*     3.0    52.0    +      -       +      +
    609G  LEU*     3.7    13.9    -      -       -      +
    611G  LEU*     1.3    77.0    -      -       -      +
    613G  GLN*     1.3    61.3    +      -       -      +
    615G  VAL*     3.4     7.5    +      -       +      +
    616G  ALA*     3.2    21.4    +      -       -      +
    583H  ASP*     5.0     0.8    +      -       +      -
    587H  ALA*     3.9    18.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 613 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    568E  MET*     3.2    27.5    +      -       -      +
    571E  MET*     3.0    35.6    -      -       -      +
    572E  ALA*     3.3    11.9    +      -       -      +
    575E  ALA*     3.8     6.6    -      -       +      +
    595G  VAL*     3.5    36.4    +      -       +      +
    597G  LEU*     3.8    12.6    -      -       +      -
    609G  LEU      2.8    21.4    +      -       -      +
    610G  ILE      3.8     2.9    -      -       -      +
    612G  HIS*     1.3    73.8    -      -       -      +
    614G  ALA*     1.3    56.9    +      -       -      +
    616G  ALA*     3.2     7.2    +      -       -      +
    617G  VAL*     2.8    45.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 614 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    591G  LEU*     4.0    31.2    -      -       +      -
    595G  VAL*     4.2    11.8    -      -       +      +
    610G  ILE      2.8    21.7    +      -       -      +
    611G  LEU      3.8     4.5    -      -       -      +
    612G  HIS      3.3     0.4    -      -       -      -
    613G  GLN*     1.3    75.5    -      -       -      +
    615G  VAL*     1.3    56.5    +      -       -      +
    617G  VAL*     3.8     1.1    -      -       -      +
    618G  ILE*     3.0    36.4    +      -       -      +
    591H  LEU*     4.1    16.8    -      -       +      -
    614H  ALA*     5.0     0.9    -      -       +      -
    618H  ILE*     4.7     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 615 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    611G  LEU      3.2    15.9    +      -       -      +
    612G  HIS*     3.8     9.4    -      -       +      +
    614G  ALA*     1.3    74.7    -      -       -      +
    616G  ALA*     1.3    57.6    +      -       -      +
    618G  ILE*     3.5     4.1    +      -       -      +
    619G  LEU*     3.0    43.1    +      -       +      +
    587H  ALA      4.8     1.6    -      -       -      +
    590H  GLU*     4.3    19.3    -      -       +      +
    591H  LEU*     3.8    38.1    -      -       +      +
    594H  MET*     4.1    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 616 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571E  MET*     3.3    26.9    -      -       +      +
    612G  HIS      3.2    14.7    +      -       -      +
    613G  GLN*     3.2    11.9    +      -       -      +
    615G  VAL*     1.3    78.2    -      -       -      +
    617G  VAL*     1.3    56.7    +      -       -      +
    619G  LEU*     3.9     8.3    -      -       -      +
    620G  SER*     3.0    22.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 617 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    567E  HIS*     5.7     2.5    -      -       +      -
    568E  MET*     4.2    23.1    -      -       +      -
    571E  MET*     4.1     7.4    -      -       +      -
    595G  VAL*     3.9    19.5    -      -       +      -
    613G  GLN*     2.8    44.8    +      -       -      +
    614G  ALA      3.8     3.4    -      -       -      +
    615G  VAL      3.3     0.2    -      -       -      -
    616G  ALA*     1.3    71.9    -      -       -      +
    618G  ILE*     1.3    59.6    +      -       -      +
    620G  SER*     3.2     3.1    +      -       -      -
    621G  LEU*     2.8    51.0    +      -       +      +
    618H  ILE*     4.1    19.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 618 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    614G  ALA      3.0    22.3    +      -       -      +
    615G  VAL*     3.9     2.9    -      -       -      +
    617G  VAL*     1.3    76.1    -      -       -      +
    619G  LEU*     1.3    58.1    +      -       -      +
    621G  LEU*     3.3     2.3    +      -       -      +
    622G  GLU*     2.9    54.8    +      -       -      +
    591H  LEU*     3.9    23.3    -      -       +      -
    594H  MET*     3.7    19.1    -      -       +      +
    595H  VAL*     4.5    11.9    -      -       +      -
    598H  HIS*     4.5     1.6    -      -       +      +
    614H  ALA*     4.6     4.9    -      -       +      +
    617H  VAL*     4.2    20.9    -      -       +      -
    618H  ILE*     3.7    24.2    -      -       +      -
    621H  LEU*     4.0    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 619 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    615G  VAL*     3.0    34.0    +      -       +      +
    616G  ALA*     3.9     7.6    -      -       -      +
    618G  ILE*     1.3    76.4    -      -       -      +
    620G  SER*     1.3    61.6    +      -       -      +
    622G  GLU*     3.5    14.3    +      -       -      +
    623G  GLN*     3.3    21.3    +      -       -      +
    594H  MET*     3.6    25.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 620 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    567E  HIS*     3.8    13.2    +      -       -      -
    571E  MET*     4.2    14.6    -      -       -      -
    616G  ALA      3.0    18.3    +      -       -      -
    617G  VAL*     3.2     5.4    +      -       -      -
    619G  LEU*     1.3    76.3    -      -       -      +
    621G  LEU*     1.3    63.5    +      -       -      +
    623G  GLN*     3.2     8.2    +      -       -      +
    624G  GLN*     3.1    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 621 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    567E  HIS*     5.0     6.5    -      -       +      +
    617G  VAL*     2.8    33.9    +      -       +      +
    618G  ILE*     4.9     0.2    -      -       -      -
    620G  SER*     1.3    72.1    -      -       -      +
    622G  GLU*     1.3    63.1    +      -       -      +
    624G  GLN*     3.3    26.8    +      -       -      +
    625G  VAL*     3.2    28.6    +      -       -      +
    618H  ILE*     3.8    35.7    -      -       +      +
    621H  LEU*     3.7    33.4    -      -       +      -
    622H  GLU*     4.2    11.4    -      -       +      +
    625H  VAL*     4.2    10.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 622 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618G  ILE*     2.9    31.6    +      -       -      +
    619G  LEU*     3.8    22.5    -      -       -      +
    621G  LEU*     1.3    77.1    -      -       -      +
    623G  GLN*     1.3    62.6    +      -       -      +
    625G  VAL*     3.6     6.4    +      -       -      +
    626G  ARG*     3.3    28.4    +      -       +      +
    594H  MET*     4.1     7.6    -      -       -      +
    597H  LEU*     4.3    14.1    -      -       -      +
    598H  HIS*     2.6    33.1    +      -       +      +
    621H  LEU*     3.9    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 623 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    619G  LEU      3.3    10.9    +      -       -      +
    620G  SER*     3.2    10.8    +      -       -      +
    622G  GLU*     1.3    77.5    -      -       -      +
    624G  GLN*     1.3    58.9    +      -       +      +
    626G  ARG*     3.2     6.4    +      -       -      +
    627G  GLU*     2.8    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 624 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    567E  HIS*     3.0    34.1    +      -       -      -
    620G  SER*     3.1    26.9    +      -       -      +
    621G  LEU*     3.3    20.7    +      -       -      +
    623G  GLN*     1.3    79.5    -      -       +      +
    625G  VAL*     1.3    61.5    +      -       -      +
    627G  GLU*     3.5    16.2    +      -       -      +
    628G  ARG      3.8     8.1    +      -       -      +
    625H  VAL*     3.3    34.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 625 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    621G  LEU      3.2    17.8    +      -       -      +
    622G  GLU*     3.9     5.4    -      -       -      +
    624G  GLN*     1.3    76.1    -      -       -      +
    626G  ARG*     1.3    64.9    +      -       +      +
    628G  ARG      3.3    18.7    -      -       -      +
    621H  LEU*     4.4    15.7    -      -       +      +
    624H  GLN*     4.2    24.5    -      -       +      +
    625H  VAL*     3.7    20.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 626 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622G  GLU*     3.3    17.2    +      -       +      +
    623G  GLN*     3.2     7.2    +      -       -      +
    625G  VAL*     1.3    81.4    -      -       +      +
    627G  GLU*     1.3    65.4    +      -       -      +
    628G  ARG*     4.8     0.9    +      -       -      -
    597H  LEU*     6.3     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 627 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623G  GLN      2.8    16.6    +      -       -      +
    624G  GLN*     3.8    10.1    -      -       -      +
    625G  VAL      3.3     0.8    -      -       -      -
    626G  ARG*     1.3    81.3    -      -       -      +
    628G  ARG*     1.3    92.5    +      -       +      +
    604J  PRO*     4.8     9.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 628 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    624G  GLN      3.8     8.0    +      -       -      +
    625G  VAL*     3.3    18.2    -      -       -      +
    626G  ARG      5.2     0.8    +      -       -      -
    627G  GLU*     1.3   104.7    +      -       +      +
    628H  ARG*     5.0    13.1    -      -       -      +
    602J  ASP*     3.0    32.6    +      -       -      +
    603J  LYS*     4.2     9.4    -      -       +      +
    604J  PRO*     3.7    32.2    -      -       +      +
----------------------------------------------------------
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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