Contacts of the helix formed by residues 794 - 819 (chain A) in PDB entry 6PUO


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 ALA 794 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    744A  TRP*     3.4    26.0    -      -       +      +
    745A  GLY*     4.4     5.6    -      -       -      -
    746A  GLN*     4.4     3.6    -      -       -      +
    747A  LEU*     4.6     9.9    -      -       +      -
    790A  ALA      3.8     8.3    +      -       -      +
    791A  PHE      3.6    11.2    +      -       -      +
    792A  PHE      3.3     1.6    -      -       -      -
    793A  THR*     1.3    78.8    -      -       -      +
    795A  PRO*     1.3    70.6    -      -       +      +
    796A  VAL*     3.3     5.2    -      -       +      +
    797A  VAL*     3.1    18.5    +      -       +      +
    798A  VAL*     3.3    11.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 795 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    742A  VAL*     3.9    15.0    -      -       +      +
    743A  TRP*     3.2    46.5    -      -       +      +
    745A  GLY*     4.3     4.7    -      -       -      -
    793A  THR      3.6     4.7    -      -       -      +
    794A  ALA*     1.3    80.7    -      -       +      +
    796A  VAL*     1.3    57.8    +      -       -      -
    798A  VAL*     3.7    11.6    -      -       +      +
    799A  PHE*     2.9    28.9    +      -       -      +
   1071A  ILE*     5.6     1.3    -      -       +      +
   1074A  TYR*     3.8    28.3    -      -       +      +
   1075A  HIS*     4.4    14.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 796 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    743A  TRP*     3.3    54.1    -      -       +      +
    744A  TRP*     3.8    41.1    -      -       +      -
    756A  VAL*     5.3     4.9    -      -       +      -
    794A  ALA*     3.3     3.5    -      -       +      -
    795A  PRO*     1.3    76.4    -      -       -      +
    797A  VAL*     1.3    61.8    +      -       +      +
    799A  PHE*     3.2     4.3    +      -       +      +
    800A  HIS*     2.9    48.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 797 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747A  LEU*     5.5     1.3    -      -       +      -
    756A  VAL*     6.0     4.9    -      -       +      +
    760A  MET*     6.0     4.9    -      -       +      -
    791A  PHE*     3.4    44.6    -      -       +      +
    792A  PHE*     3.7    37.5    -      -       +      +
    794A  ALA*     3.1    15.1    +      -       +      +
    796A  VAL*     1.3    80.6    -      -       +      +
    798A  VAL*     1.3    57.5    +      -       +      +
    800A  HIS*     3.2     7.8    +      -       +      +
    801A  LEU*     2.9    41.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 798 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792A  PHE      3.8    16.8    -      -       -      +
    793A  THR      4.6     3.8    -      -       -      +
    794A  ALA      3.3    17.0    +      -       -      +
    795A  PRO*     3.9    11.4    -      -       +      +
    796A  VAL      3.3     0.2    -      -       -      -
    797A  VAL*     1.3    75.8    -      -       +      +
    799A  PHE*     1.3    57.7    +      -       -      +
    801A  LEU*     3.9     7.3    -      -       +      +
    802A  ASN*     2.9    30.8    +      -       +      +
   1074A  TYR*     5.1    10.3    -      -       +      +
   1077A  ARG*     4.7    17.3    -      -       +      +
   1078A  PRO      4.1     8.3    -      -       -      +
   1079A  ALA*     4.1    32.5    -      -       +      +
   1080A  ALA      5.3     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 799 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    743A  TRP*     3.9    20.9    -      +       +      -
    795A  PRO      2.9    19.6    +      -       -      +
    796A  VAL*     3.5     6.3    -      -       +      +
    798A  VAL*     1.3    76.6    -      -       -      +
    800A  HIS*     1.3    73.5    +      +       -      +
    802A  ASN*     3.4     4.1    +      -       +      +
    803A  ILE*     2.9    40.1    +      -       +      +
    912A  HIS*     5.9     5.8    -      +       -      -
    913A  ILE*     4.8    24.5    -      -       +      -
    916A  ILE*     4.0    31.4    -      -       +      -
   1070A  LEU*     5.7     4.5    -      -       +      -
   1074A  TYR*     3.5    41.2    -      +       +      -
----------------------------------------------------------
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Residues in contact with HIS 800 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    753A  LEU*     5.4     9.9    +      -       +      +
    756A  VAL*     5.2    10.4    -      -       +      +
    757A  THR*     4.9    14.7    -      -       +      +
    760A  MET*     3.7    27.3    -      -       +      +
    796A  VAL*     2.9    41.0    +      -       +      +
    797A  VAL*     3.2     6.0    +      -       -      +
    799A  PHE*     1.3    88.5    -      +       -      +
    801A  LEU*     1.3    62.0    +      -       -      +
    803A  ILE*     3.2    15.9    -      -       +      +
    804A  LEU*     3.0    34.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 801 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    760A  MET*     3.7    32.1    -      -       +      -
    792A  PHE*     5.0    12.6    -      -       +      -
    797A  VAL*     2.9    32.5    +      -       +      +
    798A  VAL*     4.0     6.3    -      -       +      +
    800A  HIS*     1.3    75.7    -      -       -      +
    802A  ASN*     1.3    57.8    +      -       -      +
    804A  LEU*     3.8     6.3    -      -       +      +
    805A  SER*     3.0    29.5    +      -       -      -
   1079A  ALA      5.4     4.3    -      -       -      +
   1081A  PRO*     4.7    28.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 802 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    798A  VAL*     2.9    20.5    +      -       +      +
    799A  PHE*     3.7     6.3    -      -       -      +
    801A  LEU*     1.3    76.9    -      -       -      +
    803A  ILE*     1.3    58.8    +      -       -      +
    805A  SER*     3.4     5.6    +      -       -      -
    806A  TYR*     2.9    30.0    +      -       -      +
   1074A  TYR*     4.2    10.9    +      -       +      +
   1077A  ARG*     3.1    32.1    +      -       -      +
   1080A  ALA      5.0     4.8    +      -       -      -
   1081A  PRO*     5.4     1.7    -      -       +      +
   1082A  PRO*     3.5    31.3    -      -       -      +
   1085A  ILE*     6.2     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 803 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    799A  PHE*     2.9    31.2    +      -       +      +
    800A  HIS*     3.2    27.6    -      -       +      +
    802A  ASN*     1.3    78.2    -      -       -      +
    804A  LEU*     1.3    68.7    +      -       +      +
    806A  TYR*     3.7     9.7    -      -       +      +
    807A  PHE*     2.9    27.9    +      -       +      +
    910A  LEU*     3.9    15.9    -      -       +      -
    913A  ILE*     3.8    39.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 804 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    760A  MET*     4.7    20.2    -      -       +      -
    800A  HIS*     3.0    30.3    +      -       +      +
    801A  LEU*     3.8     8.7    -      -       +      +
    803A  ILE*     1.3    85.7    -      -       +      +
    805A  SER*     1.3    59.7    +      -       -      +
    807A  PHE*     3.3    14.1    +      -       +      +
    808A  ALA*     3.0    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 805 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    801A  LEU      3.0    17.4    +      -       -      -
    802A  ASN      3.8     1.1    -      -       -      -
    803A  ILE      3.4     0.2    -      -       -      -
    804A  LEU*     1.3    75.5    -      -       -      +
    806A  TYR*     1.3    58.6    +      -       -      +
    808A  ALA*     3.4     4.6    +      -       -      +
    809A  PHE      2.9    23.0    +      -       -      -
    835A  TRP*     3.2    28.3    +      -       -      -
   1081A  PRO*     4.3     8.7    -      -       -      -
   1082A  PRO*     3.3    32.1    -      -       -      +
   1083A  PRO*     3.4     4.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 806 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    802A  ASN*     2.9    22.4    +      -       -      +
    803A  ILE*     3.7    12.8    -      -       +      +
    804A  LEU      3.3     0.2    -      -       -      -
    805A  SER*     1.3    78.5    +      -       -      +
    807A  PHE*     1.3    56.0    +      -       -      +
    809A  PHE*     3.3    23.1    +      +       -      +
    810A  LEU*     3.0    39.7    +      -       +      +
    835A  TRP*     5.4     2.0    -      -       -      +
    839A  LEU*     4.4    22.4    -      -       +      -
    906A  PHE*     2.7    37.5    +      +       -      +
    909A  ARG*     3.3    25.3    -      -       +      +
    910A  LEU*     3.6    39.3    -      -       +      -
   1082A  PRO*     6.2     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 807 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    803A  ILE*     2.9    17.9    +      -       +      +
    804A  LEU*     3.3    16.6    +      -       +      +
    806A  TYR*     1.3    79.6    -      -       -      +
    808A  ALA*     1.3    58.4    +      -       -      +
    810A  LEU*     3.2     9.5    +      -       +      +
    811A  CYS*     3.0    33.8    +      -       +      +
    910A  LEU*     4.4    24.7    -      -       +      -
    939D  PHE*     5.7     9.2    -      +       -      -
    943D  VAL*     5.5     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 808 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    804A  LEU      3.0    16.3    +      -       -      +
    805A  SER*     3.8     6.5    -      -       -      +
    806A  TYR      3.4     0.2    -      -       -      -
    807A  PHE*     1.3    75.7    -      -       -      +
    809A  PHE*     1.3    60.2    +      -       -      +
    811A  CYS*     3.4     6.5    +      -       -      +
    812A  LEU*     3.0    32.1    +      -       -      +
    835A  TRP*     4.7     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 809 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    805A  SER      2.9    18.1    +      -       -      +
    806A  TYR*     3.4    27.8    -      +       -      +
    808A  ALA*     1.3    76.3    -      -       -      +
    810A  LEU*     1.3    68.9    -      -       +      +
    812A  LEU*     3.5     3.2    +      -       +      +
    813A  PHE*     2.9    41.9    +      +       +      +
    832A  ILE*     4.1    26.0    -      -       +      -
    835A  TRP*     3.4    60.0    -      +       +      +
    836A  LEU*     4.7    22.0    -      -       +      -
    839A  LEU*     5.3     4.0    -      -       +      -
    906A  PHE*     4.9    17.5    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 810 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    806A  TYR*     3.0    32.3    +      -       +      +
    807A  PHE*     3.2    11.6    +      -       +      +
    809A  PHE*     1.3    87.9    -      -       +      +
    811A  CYS*     1.3    56.3    +      -       -      +
    813A  PHE*     3.3     5.8    +      -       +      +
    814A  ALA*     3.0    29.1    +      -       -      +
    903A  PHE*     3.8    26.8    -      -       +      -
    906A  PHE*     4.1    26.7    -      -       +      +
    907A  CYS*     4.0    20.4    -      -       +      +
    910A  LEU*     3.9    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 811 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    807A  PHE*     3.0    26.2    +      -       +      +
    808A  ALA*     3.4     6.7    +      -       -      +
    810A  LEU*     1.3    75.3    -      -       -      +
    812A  LEU*     1.3    58.5    +      -       -      +
    814A  ALA*     3.3     7.4    +      -       -      +
    815A  TYR*     3.0    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 812 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    808A  ALA      3.0    17.5    +      -       -      +
    809A  PHE*     4.0     4.7    -      -       +      +
    811A  CYS*     1.3    77.5    -      -       -      +
    813A  PHE*     1.3    58.9    +      -       -      +
    815A  TYR*     3.3    10.8    +      -       +      +
    816A  VAL*     3.0    46.2    +      -       +      +
    828A  CYS*     4.7    12.6    -      -       +      +
    831A  ALA*     5.2     7.4    -      -       +      -
    832A  ILE*     3.7    24.2    -      -       +      -
    835A  TRP*     5.3    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 813 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    809A  PHE*     2.9    33.1    +      +       +      +
    810A  LEU*     3.7    10.3    -      -       +      +
    811A  CYS      3.3     0.2    -      -       -      -
    812A  LEU*     1.3    77.9    -      -       -      +
    814A  ALA*     1.3    55.4    +      -       -      +
    816A  VAL*     3.4     2.3    +      -       -      +
    817A  LEU*     2.9    50.3    +      -       +      +
    832A  ILE*     3.6    41.0    -      -       +      +
    879A  PHE*     4.3    19.3    -      +       -      -
    899A  LEU*     4.0    22.7    -      -       +      -
    902A  ASP*     4.9     7.2    -      -       -      -
    903A  PHE*     3.4    47.8    -      +       +      -
    906A  PHE*     5.5     6.5    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 814 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    810A  LEU      3.0    17.1    +      -       -      +
    811A  CYS*     3.7     7.9    -      -       -      +
    812A  LEU      3.3     0.2    -      -       -      -
    813A  PHE*     1.3    77.2    -      -       -      +
    815A  TYR*     1.3    57.1    +      -       -      +
    817A  LEU*     3.4     6.5    +      -       -      +
    818A  MET*     2.9    35.1    +      -       -      +
    903A  PHE*     3.8    25.8    -      -       +      -
    950D  VAL*     5.0    13.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 815 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    811A  CYS*     3.0    18.9    +      -       -      +
    812A  LEU*     3.7    11.2    -      -       +      +
    813A  PHE      3.3     0.2    -      -       -      -
    814A  ALA*     1.3    77.1    -      -       -      +
    816A  VAL*     1.3    73.7    +      -       +      +
    818A  MET*     3.4    12.5    +      -       +      +
    819A  VAL*     3.4    39.7    +      -       +      +
    820A  ASP*     3.8     9.4    +      -       +      +
    828A  CYS*     5.5     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 816 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    812A  LEU*     3.0    31.3    +      -       +      +
    813A  PHE*     3.9     4.0    -      -       +      +
    815A  TYR*     1.3    84.7    -      -       +      +
    817A  LEU*     1.3    63.1    +      -       -      +
    820A  ASP*     3.1    37.4    +      -       +      +
    821A  PHE*     3.1    14.1    +      -       +      -
    828A  CYS*     3.7    28.5    -      -       +      +
    829A  GLU*     4.8    13.0    -      -       +      +
    832A  ILE*     4.1    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 817 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    813A  PHE*     2.9    37.0    +      -       +      +
    814A  ALA*     3.9     6.1    -      -       -      +
    816A  VAL*     1.3    78.5    -      -       -      +
    818A  MET*     1.3    60.7    +      -       +      +
    821A  PHE*     4.3     9.0    -      -       +      +
    896A  ARG*     2.8    33.0    +      -       +      +
    899A  LEU*     3.3    46.4    -      -       +      +
    900A  SER*     3.8    11.9    -      -       -      +
    903A  PHE*     4.2    10.1    -      -       +      -
    950D  VAL*     6.1     2.5    -      -       +      -
    954D  ALA*     3.7    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 818 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    814A  ALA*     2.9    21.3    +      -       -      +
    815A  TYR*     3.9     6.5    -      -       +      +
    816A  VAL      3.2     0.4    -      -       -      -
    817A  LEU*     1.3    80.1    -      -       +      +
    819A  VAL*     1.3    76.8    +      -       +      +
    821A  PHE      5.0     0.2    -      -       -      -
    896A  ARG*     2.6    24.0    +      -       -      +
    950D  VAL*     4.1    27.8    -      -       +      -
    953D  GLN*     3.4    32.1    -      -       -      +
    954D  ALA*     5.4     6.1    -      -       +      +
    959D  ASN*     4.0     8.3    -      -       -      +
    960D  GLU      5.5     4.3    -      -       -      +
    967D  PHE*     6.5     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 819 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    815A  TYR*     3.4    39.2    +      -       +      +
    818A  MET*     1.3    95.5    -      -       +      +
    820A  ASP*     1.3    63.5    +      -       +      +
    821A  PHE      3.2    14.5    +      -       -      +
    959D  ASN*     4.1    16.0    -      -       +      +
    960D  GLU      4.5    19.5    -      -       -      +
    961D  ARG*     5.4     6.3    -      -       +      -
----------------------------------------------------------
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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