Contacts of the helix formed by residues 771 - 798 (chain B) in PDB entry 5JO3


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with PRO 771 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    560B  SER*     3.8    38.1    -      -       -      +
    769B  THR      4.5     1.1    -      -       -      +
    770B  LYS*     1.4    85.0    -      -       +      +
    772B  TRP*     1.3    66.2    +      -       -      +
    773B  PRO*     3.3    10.3    -      -       +      -
    774B  ILE*     2.9    34.7    +      -       +      +
    775B  GLN      2.9     9.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 772 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    770B  LYS      3.3     1.6    +      -       -      -
    771B  PRO*     1.3    70.7    -      -       -      +
    773B  PRO*     1.4    73.5    -      -       +      +
    775B  GLN*     3.2    25.5    +      -       -      -
    776B  GLN*     2.7    70.3    +      -       +      +
    849B  ASN*     3.4    23.4    +      -       -      +
    852B  LYS*     3.5    55.9    -      -       +      +
    853B  TRP*     3.6    45.3    -      +       -      -
    856B  LEU*     4.0    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 773 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    771B  PRO*     3.4    12.3    -      -       +      +
    772B  TRP*     1.4   102.9    -      -       +      +
    774B  ILE*     1.3    58.3    +      -       +      +
    776B  GLN*     3.6     9.6    +      -       +      +
    777B  ARG*     3.1    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 774 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    560B  SER      3.7    17.9    -      -       -      +
    561B  PHE      4.7     3.6    -      -       -      +
    562B  SER*     3.7    33.2    -      -       -      +
    770B  LYS*     3.7    20.6    -      -       +      -
    771B  PRO*     2.9    26.7    +      -       +      +
    773B  PRO*     1.3    77.6    -      -       +      +
    775B  GLN*     1.3    64.7    -      -       -      +
    777B  ARG*     3.2    14.2    +      -       -      +
    778B  ILE*     3.0    40.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 775 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    767B  ALA      3.2    27.8    -      -       -      +
    768B  ILE*     3.8     8.5    -      -       -      +
    770B  LYS*     3.7     8.0    -      -       -      +
    771B  PRO      2.9     7.4    +      -       -      +
    772B  TRP*     3.2    28.4    -      -       -      +
    774B  ILE*     1.3    77.0    -      -       -      +
    776B  GLN*     1.3    61.7    +      -       -      +
    778B  ILE*     3.3     3.0    +      -       -      -
    779B  ALA*     2.8    26.2    +      -       -      +
    817B  GLN*     3.4    17.8    -      -       -      +
    849B  ASN*     3.3    28.5    -      -       -      +
    853B  TRP*     2.8    29.0    +      -       -      +
    903B  6LK      3.5    15.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 776 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772B  TRP*     2.7    63.0    +      -       +      +
    773B  PRO*     3.9     8.7    -      -       -      +
    775B  GLN*     1.3    80.1    +      -       -      +
    777B  ARG*     1.3    62.0    +      -       -      +
    779B  ALA*     3.3     6.8    +      -       -      +
    780B  GLU*     3.1    34.7    +      -       +      +
    853B  TRP*     4.9     8.4    -      -       +      -
    856B  LEU*     5.3     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 777 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562B  SER*     5.1     1.6    +      -       -      -
    563B  ASP*     3.7    22.2    +      -       -      -
    564B  PHE*     3.4    60.2    -      -       -      +
    620B  ASN*     5.4     0.2    -      -       -      +
    773B  PRO      3.1    18.3    +      -       -      +
    774B  ILE*     3.2    13.2    +      -       -      +
    776B  GLN*     1.3    76.0    -      -       -      +
    778B  ILE*     1.3    83.2    +      -       -      +
    780B  GLU*     3.3    27.1    +      -       -      +
    781B  LEU*     3.4    35.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 778 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    563B  ASP*     5.4     0.4    -      -       -      +
    612B  TYR*     3.6    31.6    -      -       +      -
    620B  ASN*     5.0    14.6    -      -       -      +
    767B  ALA*     3.6    31.2    -      -       +      -
    770B  LYS*     4.9     3.4    -      -       +      -
    774B  ILE*     3.0    38.3    +      -       +      +
    775B  GLN      3.9     3.4    -      -       -      +
    777B  ARG*     1.3    94.7    -      -       -      +
    779B  ALA*     1.3    67.0    +      -       -      +
    781B  LEU*     3.0    22.2    +      -       +      +
    782B  VAL*     3.0    14.2    +      -       +      +
    903B  6LK      4.3     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 779 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    775B  GLN      2.8    22.0    +      -       -      +
    776B  GLN      3.3     5.8    +      -       -      +
    778B  ILE*     1.3    73.1    -      -       -      +
    780B  GLU*     1.3    54.5    +      -       +      +
    782B  VAL*     3.3     6.9    +      -       -      +
    783B  ALA*     3.0    28.6    +      -       -      +
    813B  ILE*     5.9     2.1    -      -       +      +
    817B  GLN*     3.8    18.2    -      -       +      +
    853B  TRP*     3.8    19.1    -      -       +      -
    903B  6LK      3.7    17.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 780 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776B  GLN*     3.1    24.5    +      -       +      +
    777B  ARG*     3.4    16.7    -      -       -      +
    778B  ILE      3.1     0.4    -      -       -      -
    779B  ALA*     1.3    77.9    -      -       -      +
    781B  LEU*     1.3    58.6    +      -       +      +
    783B  ALA*     3.4     6.6    +      -       -      +
    784B  THR*     2.8    34.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 781 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    611B  ALA*     3.6    36.9    -      -       +      +
    612B  TYR*     3.8    11.6    -      -       +      +
    614B  ASN*     5.6     1.6    -      -       -      +
    777B  ARG*     3.4    37.4    +      -       +      +
    778B  ILE*     3.0    18.2    +      -       +      +
    780B  GLU*     1.3    76.5    -      -       +      +
    782B  VAL*     1.3    64.4    +      -       -      +
    784B  THR*     3.2     8.1    +      -       -      +
    785B  GLU*     3.0    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 782 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    612B  TYR*     3.6    44.4    -      -       +      -
    778B  ILE*     3.0    14.7    +      -       +      +
    779B  ALA*     3.6     8.5    -      -       -      +
    781B  LEU*     1.3    73.8    -      -       -      +
    783B  ALA*     1.3    63.4    +      -       -      +
    785B  GLU*     3.3     4.7    +      -       -      +
    786B  PHE*     3.0    53.4    +      -       +      -
    903B  6LK      3.9    37.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 783 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    779B  ALA      3.0    17.4    +      -       -      +
    780B  GLU*     3.6     8.1    -      -       -      +
    782B  VAL*     1.3    74.7    -      -       -      +
    784B  THR*     1.3    59.5    +      -       -      +
    786B  PHE*     3.2     8.8    +      -       -      +
    787B  PHE*     2.8    48.7    +      -       +      -
    804B  LEU      5.7     0.2    -      -       -      -
    813B  ILE*     4.0    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 784 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    611B  ALA*     3.7    18.6    -      -       +      -
    780B  GLU*     2.8    23.1    +      -       -      +
    781B  LEU*     3.2     8.9    +      -       -      +
    783B  ALA*     1.3    75.7    -      -       -      +
    785B  GLU*     1.3    57.7    +      -       -      +
    787B  PHE*     3.4     7.3    +      -       -      +
    788B  ASP*     2.9    31.0    +      -       +      +
    807B  ARG*     4.9     1.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 785 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    610B  VAL*     3.2    14.7    -      -       +      +
    611B  ALA*     3.9     9.8    -      -       +      +
    612B  TYR*     2.9    27.8    +      -       +      +
    613B  HIS*     2.6    40.6    +      -       -      -
    657B  HIS*     3.8     1.9    -      -       -      -
    659B  GLY*     3.4    30.8    -      -       -      +
    781B  LEU      3.0    12.3    +      -       -      +
    782B  VAL      3.6     7.4    -      -       -      +
    784B  THR*     1.3    77.4    -      -       -      +
    786B  PHE*     1.3    70.4    +      -       +      +
    788B  ASP*     3.2     8.5    +      -       +      +
    789B  GLN*     3.0    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 786 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    612B  TYR*     6.5     0.4    -      +       -      -
    613B  HIS*     5.7     9.6    -      +       -      -
    661B  SER*     6.2     1.8    -      -       -      -
    782B  VAL*     3.0    42.8    +      -       +      +
    783B  ALA*     3.7     6.5    -      -       -      +
    785B  GLU*     1.3    82.8    -      -       +      +
    787B  PHE*     1.3    58.9    +      -       -      +
    789B  GLN*     3.2     8.0    +      -       +      +
    790B  GLY      3.0    22.2    +      -       -      -
    804B  LEU*     3.4    52.9    -      -       +      +
    805B  MET*     3.4    35.5    -      -       +      +
    903B  6LK      3.8    34.5    -      +       +      -
----------------------------------------------------------
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Residues in contact with PHE 787 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    783B  ALA*     2.8    38.6    +      -       +      +
    784B  THR*     3.9     5.4    -      -       -      +
    786B  PHE*     1.3    70.2    -      -       -      +
    788B  ASP*     1.3    60.4    +      -       -      +
    790B  GLY*     3.2     1.6    +      -       -      -
    791B  ASP*     3.0    32.7    +      -       -      +
    803B  ASP      4.2     3.6    -      -       -      -
    804B  LEU      3.5    17.3    -      -       -      -
    805B  MET      3.6    11.5    -      -       -      +
    806B  ASN      3.5    16.4    -      -       -      -
    807B  ARG*     3.4    51.9    +      -       +      +
    810B  LYS*     3.8    36.1    -      -       +      -
    813B  ILE*     3.8    17.9    -      -       +      -
    816B  MET*     6.0     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 788 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659B  GLY      4.9     5.5    -      -       -      +
    660B  VAL*     5.5     0.3    -      -       -      +
    784B  THR*     2.9    20.4    +      -       +      +
    785B  GLU*     3.5     7.9    -      -       -      +
    787B  PHE*     1.3    76.8    -      -       -      +
    789B  GLN*     1.3    63.2    +      -       -      +
    791B  ASP*     3.2    16.6    +      -       -      +
    792B  ARG*     3.2    37.9    +      -       -      +
    807B  ARG*     3.8     3.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 789 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659B  GLY      4.4     1.6    +      -       -      +
    660B  VAL*     3.3    16.2    -      -       +      -
    661B  SER*     2.9    46.4    +      -       -      -
    663B  GLN*     5.8     0.4    -      -       -      +
    664B  PHE*     3.5    20.2    -      -       +      +
    785B  GLU      3.0    12.3    +      -       -      +
    786B  PHE*     3.2    13.3    +      -       +      +
    788B  ASP*     1.3    78.2    +      -       -      +
    790B  GLY*     1.3    56.6    +      -       -      +
    792B  ARG*     3.0    10.8    +      -       -      +
    793B  GLU*     2.9    50.3    +      -       -      +
    805B  MET*     3.2    25.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 790 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    786B  PHE      3.0    10.9    +      -       -      -
    787B  PHE      3.2     1.0    +      -       -      -
    789B  GLN*     1.3    75.3    -      -       -      +
    791B  ASP*     1.3    63.1    +      -       -      +
    793B  GLU*     3.2     6.9    +      -       -      +
    794B  ARG*     3.0    22.3    +      -       -      +
    801B  PRO*     3.4    26.3    -      -       -      +
    805B  MET*     3.2    24.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 791 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    787B  PHE      3.0    14.9    +      -       -      +
    788B  ASP*     3.4    15.7    -      -       -      +
    789B  GLN      3.2     0.2    -      -       -      -
    790B  GLY*     1.3    76.0    -      -       -      +
    792B  ARG*     1.3    62.3    +      -       +      +
    794B  ARG*     3.4    15.8    +      -       -      +
    795B  LYS*     3.2    30.3    +      -       +      +
    807B  ARG*     2.8    42.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 792 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658B  PRO*     4.5    10.7    +      -       -      +
    660B  VAL*     3.8    23.1    -      -       -      +
    664B  PHE*     3.6    33.1    -      -       +      -
    788B  ASP*     3.3    27.7    +      -       -      +
    789B  GLN*     3.0    11.7    +      -       -      +
    791B  ASP*     1.3    73.8    -      -       +      +
    793B  GLU*     1.3    56.0    +      -       -      +
    795B  LYS*     4.5     4.3    -      -       -      +
    796B  GLU*     2.7    68.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 793 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    664B  PHE*     3.7    22.4    -      -       +      +
    667B  ASN*     5.7     1.7    +      -       -      -
    789B  GLN*     2.9    44.6    +      -       -      +
    790B  GLY*     3.2     8.2    +      -       -      +
    792B  ARG*     1.3    72.9    -      -       -      +
    794B  ARG*     1.3    66.8    +      -       -      +
    797B  LEU*     2.9    34.1    +      -       +      +
    798B  ASN      3.1     5.9    +      -       -      -
    799B  ILE*     3.5    27.6    +      -       +      +
    801B  PRO*     3.6    26.8    -      -       +      +
    802B  THR      4.7     1.2    +      -       -      -
    805B  MET*     3.9     9.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 794 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    790B  GLY      3.0    16.3    +      -       -      +
    791B  ASP*     3.6    16.3    +      -       -      +
    792B  ARG      3.3     0.2    -      -       -      -
    793B  GLU*     1.3    77.2    -      -       -      +
    795B  LYS*     1.3    63.5    +      -       +      +
    798B  ASN*     3.2    23.7    +      -       -      +
    799B  ILE      3.4    16.8    +      -       -      +
    800B  GLU*     3.7    23.0    +      -       -      +
    801B  PRO*     3.4    19.8    -      -       +      +
    806B  ASN*     3.1    32.3    +      -       -      +
    808B  GLU*     3.8    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 795 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    791B  ASP*     3.2    18.8    +      -       +      +
    792B  ARG*     3.9     4.7    -      -       -      +
    794B  ARG*     1.3    85.5    -      -       +      +
    796B  GLU*     1.3    66.0    +      -       +      +
    798B  ASN*     4.5     2.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 796 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    664B  PHE*     3.5    18.7    -      -       +      -
    668B  THR*     3.6    21.1    -      -       +      +
    792B  ARG*     2.7    56.6    +      -       -      +
    795B  LYS*     1.3    80.6    -      -       +      +
    797B  LEU*     1.3    65.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 797 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    664B  PHE*     4.5    10.8    -      -       +      -
    667B  ASN*     3.4    51.8    -      -       +      +
    668B  THR*     4.1    11.7    -      -       +      -
    793B  GLU*     2.9    30.3    +      -       +      +
    796B  GLU*     1.3    85.5    -      -       +      +
    798B  ASN*     1.3    71.2    +      -       -      +
    799B  ILE*     3.3    34.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 798 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    793B  GLU      3.1     3.2    +      -       -      -
    794B  ARG*     3.2    17.4    +      -       -      +
    795B  LYS      4.4     2.3    +      -       -      +
    796B  GLU      3.7     1.0    -      -       -      -
    797B  LEU*     1.3    80.2    -      -       -      +
    799B  ILE*     1.3    61.2    +      -       -      +
----------------------------------------------------------
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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