Contacts of the helix formed by residues 758 - 783 (chain C) in PDB entry 6VSB


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 SER 758 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    961B  THR*     3.3    19.9    +      -       -      -
    964B  LYS*     5.5    12.9    -      -       -      +
    965B  GLN*     2.9    21.8    +      -       -      +
    757C  GLY*     1.3    70.5    -      -       -      -
    759C  PHE*     1.3    64.4    +      -       -      +
    760C  CYS*     3.2     5.6    -      -       -      +
    761C  THR*     3.2    15.5    +      -       -      +
    762C  GLN*     2.9    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 759 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    965B  GLN*     3.2    23.3    -      -       -      +
    970B  PHE*     4.2    11.4    -      +       -      -
    999B  GLY      4.8     0.7    -      -       -      -
   1002B  GLN*     3.6    17.9    -      -       +      -
   1003B  SER*     3.9    25.8    -      -       -      -
   1006B  THR*     3.8    14.4    -      -       +      -
    753C  LEU*     6.1     1.6    -      -       +      -
    756C  TYR*     3.0    31.2    -      +       +      +
    757C  GLY      3.3     3.0    +      -       -      +
    758C  SER*     1.3    76.9    -      -       -      +
    760C  CYS*     1.3    64.3    +      -       -      +
    762C  GLN*     3.0    15.6    +      -       -      +
    763C  LEU*     2.8    39.9    +      -       +      +
   1001C  LEU*     4.2    24.5    -      -       +      -
   1005C  GLN*     3.6    28.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 760 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    738C  CYS*     3.5    35.5    -      -       +      +
    739C  THR*     4.8    11.4    -      -       +      -
    753C  LEU*     4.7    23.4    -      -       +      +
    754C  LEU*     6.4     1.6    -      -       -      -
    757C  GLY      4.7     8.0    +      -       -      -
    758C  SER*     4.7     5.4    -      -       -      -
    759C  PHE*     1.3    78.6    -      -       -      +
    761C  THR*     1.3    82.7    +      -       -      +
    763C  LEU*     3.6     0.7    +      -       -      +
    764C  ASN*     3.2    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 761 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758C  SER*     3.2    14.3    +      -       -      -
    760C  CYS*     1.3    88.8    -      -       -      +
    762C  GLN*     1.3    60.0    +      -       -      +
    764C  ASN*     3.1     7.4    +      -       +      +
    765C  ARG*     2.8    50.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 762 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    958B  ALA*     5.8     0.4    -      -       -      +
    961B  THR*     3.8    31.4    +      -       -      +
    965B  GLN*     6.0     1.0    +      -       -      -
   1006B  THR*     3.8    23.0    -      -       -      +
   1007B  TYR*     5.8     3.2    -      -       -      +
   1010B  GLN*     3.2    32.1    +      -       -      +
    758C  SER*     2.9    19.7    +      -       -      +
    759C  PHE*     3.6    16.4    -      -       -      +
    761C  THR*     1.3    76.6    -      -       -      +
    763C  LEU*     1.3    67.1    +      -       +      +
    765C  ARG*     3.4    21.4    +      -       -      +
    766C  ALA*     3.1    22.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 763 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1006B  THR*     6.2     4.0    -      -       +      -
    736C  VAL*     6.2     1.3    -      -       +      -
    738C  CYS*     3.8    16.4    -      -       +      -
    759C  PHE*     2.8    24.8    +      -       +      +
    760C  CYS      3.9     3.1    -      -       -      +
    762C  GLN*     1.3    80.2    -      -       +      +
    764C  ASN*     1.3    62.4    +      -       -      +
    766C  ALA*     3.3    14.8    +      -       -      +
    767C  LEU*     3.3    18.7    +      -       +      +
   1001C  LEU*     4.7    18.6    -      -       +      -
   1004C  LEU*     3.8    32.5    -      -       +      -
   1005C  GLN*     4.2    30.5    -      -       +      +
   1008C  VAL*     4.2    22.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 764 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314B  GLN*     4.1    22.5    +      -       -      +
    317B  ASN*     5.5     5.1    -      -       -      +
    735C  SER*     4.7     7.3    +      -       -      -
    736C  VAL*     4.5    20.3    +      -       -      +
    737C  ASP*     5.5     2.2    -      -       -      +
    738C  CYS*     5.3     7.5    -      -       +      +
    760C  CYS      3.2    10.8    +      -       -      +
    761C  THR*     3.1    10.9    +      -       +      +
    763C  LEU*     1.3    78.6    -      -       -      +
    765C  ARG*     1.3    64.3    +      -       -      +
    767C  LEU*     3.4     8.6    +      -       -      +
    768C  THR*     3.0    30.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 765 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    957B  GLN*     3.2    45.1    -      -       -      +
    961B  THR*     5.3     7.9    +      -       -      +
    761C  THR*     2.8    39.0    +      -       +      +
    762C  GLN*     3.7    21.7    -      -       -      +
    763C  LEU      3.2     0.2    -      -       -      -
    764C  ASN*     1.3    73.2    -      -       -      +
    766C  ALA*     1.3    65.4    +      -       -      +
    768C  THR*     3.1     9.5    +      -       -      -
    769C  GLY*     3.0    19.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 766 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1010B  GLN*     4.3    18.6    -      -       -      +
    762C  GLN      3.1    14.2    +      -       -      +
    763C  LEU*     3.3     7.4    +      -       -      +
    765C  ARG*     1.3    78.9    -      -       -      +
    767C  LEU*     1.3    62.6    +      -       -      +
    769C  GLY*     3.1    10.8    +      -       -      -
    770C  ILE*     3.2    19.3    +      -       -      +
   1008C  VAL*     3.8    18.8    -      -       +      -
   1012C  LEU*     4.4    14.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 767 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734C  THR*     4.4    15.8    -      -       +      +
    735C  SER*     4.9     6.3    -      -       -      +
    736C  VAL*     3.5    38.6    -      -       +      +
    763C  LEU      3.3     8.3    +      -       -      +
    764C  ASN*     3.9     8.1    -      -       -      +
    765C  ARG      3.3     0.4    -      -       -      -
    766C  ALA*     1.3    76.9    -      -       -      +
    768C  THR*     1.3    57.2    +      -       -      +
    770C  ILE*     3.1    26.0    -      -       +      +
    771C  ALA*     3.0    31.1    +      -       -      +
   1007C  TYR*     4.3    14.1    -      -       +      -
   1008C  VAL*     3.6    36.1    -      -       +      -
   1011C  GLN*     4.2    12.8    -      -       +      -
   1012C  LEU*     6.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 768 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314B  GLN*     4.5    15.3    +      -       +      +
    735C  SER*     5.6     0.9    +      -       -      -
    764C  ASN*     3.0    25.9    +      -       -      -
    765C  ARG*     3.1    12.3    +      -       -      +
    767C  LEU*     1.3    78.3    -      -       -      +
    769C  GLY*     1.3    61.0    +      -       -      +
    771C  ALA*     3.9     5.2    -      -       -      +
    772C  VAL*     3.1    27.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 769 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    765C  ARG      3.0    12.8    +      -       -      -
    766C  ALA*     3.1     4.6    +      -       -      -
    768C  THR*     1.3    75.4    -      -       -      +
    770C  ILE*     1.3    58.8    +      -       -      +
    772C  VAL*     3.1    12.1    -      -       -      +
    773C  GLU*     2.8    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 770 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731C  MET*     5.1     6.7    -      -       -      -
    734C  THR*     5.1     4.7    -      -       +      +
    766C  ALA      3.2     4.4    +      -       -      +
    767C  LEU*     3.1    41.5    -      -       +      +
    769C  GLY*     1.3    75.1    -      -       -      +
    771C  ALA*     1.3    61.4    +      -       -      +
    773C  GLU*     2.9    13.8    +      -       -      +
    774C  GLN*     2.9    36.2    +      -       +      +
   1011C  GLN*     4.1    27.1    -      -       +      +
   1012C  LEU*     3.5    33.0    -      -       +      +
   1015C  ALA*     4.0    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 771 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733C  LYS*     3.2    40.1    -      -       +      +
    734C  THR      4.1     9.0    -      -       -      +
    767C  LEU      3.0    19.5    +      -       -      +
    768C  THR*     3.9     5.8    -      -       -      +
    770C  ILE*     1.3    80.8    -      -       +      +
    772C  VAL*     1.3    60.4    +      -       -      +
    774C  GLN*     3.3    10.3    +      -       -      +
    775C  ASP      3.7     1.6    +      -       -      -
    861C  LEU*     4.0    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 772 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733C  LYS*     5.0     0.9    -      -       -      +
    768C  THR*     3.1    18.1    +      -       +      +
    769C  GLY*     3.1    19.7    -      -       -      +
    771C  ALA*     1.3    73.9    -      -       -      +
    773C  GLU*     1.3    64.1    +      -       -      +
    774C  GLN      3.3     0.2    -      -       -      -
    775C  ASP*     3.5    18.4    +      -       +      +
    776C  LYS*     3.6    12.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 773 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017B  GLU*     4.2     2.8    -      -       -      +
    769C  GLY      2.8    15.4    +      -       -      +
    770C  ILE*     2.9    14.4    +      -       -      +
    772C  VAL*     1.3    77.6    -      -       -      +
    774C  GLN*     1.3    83.7    +      -       -      +
    776C  LYS*     2.9    38.3    +      -       +      +
    777C  ASN*     3.2    15.4    +      -       -      +
   1015C  ALA*     4.1    16.0    -      -       -      +
   1019C  ARG*     2.7    47.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 774 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729C  VAL      4.6     1.0    -      -       -      +
    730C  SER*     3.4    15.6    -      -       -      +
    731C  MET*     3.4    46.4    +      -       +      +
    733C  LYS*     4.0    14.4    -      -       +      -
    770C  ILE*     2.9    23.2    +      -       +      +
    771C  ALA*     3.6    11.4    -      -       -      +
    772C  VAL      3.3     0.4    -      -       -      -
    773C  GLU*     1.3   103.4    +      -       -      +
    775C  ASP*     1.3    63.0    +      -       -      +
    777C  ASN*     3.2    24.5    +      -       -      +
    778C  THR*     3.3    17.4    +      -       -      +
   1015C  ALA*     4.2    19.0    +      -       -      +
   1018C  ILE*     4.2     5.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 775 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    665B  PRO*     6.1     0.3    -      -       -      +
    733C  LYS*     2.3    39.1    +      -       -      +
    771C  ALA      3.7     1.3    +      -       -      +
    772C  VAL*     3.5    16.8    +      -       +      +
    773C  GLU      3.2     0.6    -      -       -      -
    774C  GLN*     1.3    78.0    -      -       -      +
    776C  LYS*     1.3    59.7    +      -       -      +
    778C  THR*     3.2    18.8    +      -       -      -
    779C  GLN*     3.2    18.4    +      -       -      +
    863C  PRO*     3.8     3.3    -      -       -      +
    864C  LEU*     2.9    47.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 776 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772C  VAL      3.6     5.9    +      -       -      +
    773C  GLU*     2.9    28.6    +      -       +      +
    775C  ASP*     1.3    76.9    -      -       -      +
    777C  ASN*     1.3    55.8    +      -       -      +
    779C  GLN*     3.2     5.4    +      -       +      +
    780C  GLU*     2.6    54.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 777 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729C  VAL*     3.3    18.8    +      -       -      +
    773C  GLU*     3.2    16.0    +      -       -      +
    774C  GLN*     3.2    27.8    +      -       -      +
    776C  LYS*     1.3    79.8    -      -       -      +
    778C  THR*     1.3    55.3    +      -       -      +
    780C  GLU*     4.4    11.6    -      -       -      +
    781C  VAL*     2.7    40.3    +      -       -      +
   1018C  ILE*     4.3     4.0    -      -       -      +
   1019C  ARG*     4.1    25.7    -      -       -      +
   1022C  ALA*     3.5    28.7    -      -       +      +
   1023C  ASN*     4.9     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 778 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729C  VAL*     4.2    22.2    -      -       +      +
    730C  SER*     4.2    15.3    -      -       -      +
    774C  GLN      3.3     8.3    +      -       -      +
    775C  ASP*     3.2    21.7    +      -       -      -
    777C  ASN*     1.3    77.1    -      -       -      +
    779C  GLN*     1.3    59.0    +      -       -      +
    781C  VAL*     4.9     0.2    -      -       -      -
    782C  PHE*     3.2    39.7    +      -       +      +
    863C  PRO*     6.0     4.2    -      -       +      +
    864C  LEU*     5.9     0.3    -      -       -      +
    865C  LEU*     4.4    20.3    +      -       -      +
    870C  ILE*     4.7    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 779 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    662B  CYS*     6.1     0.2    -      -       -      +
    697B  MET*     4.5    15.8    -      -       -      +
    775C  ASP      3.2    17.0    +      -       -      +
    776C  LYS*     3.2     6.2    +      -       +      +
    777C  ASN      3.2     0.4    -      -       -      -
    778C  THR*     1.3    79.6    -      -       -      +
    780C  GLU*     1.3    58.6    +      -       -      +
    783C  ALA*     2.9    49.4    +      -       +      +
    864C  LEU*     3.9    23.7    -      -       -      +
    865C  LEU*     3.9    19.5    -      -       -      +
    873C  TYR*     4.6     5.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 780 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776C  LYS*     2.6    33.8    +      -       +      +
    777C  ASN*     3.9    11.2    -      -       -      +
    779C  GLN*     1.3    73.7    -      -       -      +
    781C  VAL*     1.3    68.4    +      -       +      +
    783C  ALA      4.6     2.2    -      -       -      +
    784C  GLN*     3.7    19.4    +      -       -      +
   1022C  ALA      5.7     0.7    -      -       -      +
   1023C  ASN*     3.8    19.7    -      -       -      +
   1026C  ALA*     4.5    16.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 781 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729C  VAL*     4.0    21.3    -      -       +      -
    777C  ASN*     2.7    25.0    +      -       -      +
    780C  GLU*     1.3    76.4    -      -       +      +
    782C  PHE*     1.3    70.3    +      -       +      +
    784C  GLN*     3.3    10.0    -      -       -      +
   1022C  ALA*     3.3    31.9    -      -       +      +
   1025C  ALA*     4.3     9.6    -      -       +      -
   1026C  ALA*     3.9    22.0    -      -       +      +
   1029C  MET*     3.0    41.6    -      -       +      +
   1060C  VAL*     4.7     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 782 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729C  VAL*     4.2    21.1    -      -       +      -
    778C  THR*     3.2    34.8    +      -       +      +
    781C  VAL*     1.3    82.8    -      -       +      +
    783C  ALA*     1.3    52.0    +      -       -      +
    784C  GLN      2.6    19.2    +      -       -      -
    785C  VAL*     4.5     1.4    +      -       -      +
    865C  LEU*     5.3     1.1    -      -       +      -
    870C  ILE*     3.6    29.4    -      -       +      -
    873C  TYR*     3.7    27.3    -      -       +      -
    874C  THR*     3.5    32.1    -      -       +      -
    877C  LEU*     3.7    20.5    -      -       +      +
   1029C  MET*     4.4    11.2    -      -       +      -
   1054C  GLN      5.1     0.9    -      -       -      -
   1055C  SER*     5.1     2.7    -      -       -      -
   1059C  GLY      4.1     9.6    -      -       -      -
   1060C  VAL*     4.0    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 783 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    779C  GLN*     2.9    43.4    +      -       +      +
    780C  GLU*     4.6     1.8    -      -       -      +
    782C  PHE*     1.3    69.6    -      -       -      +
    784C  GLN*     1.3    60.8    +      -       -      +
    785C  VAL      3.4     8.5    -      -       -      +
    873C  TYR*     3.8    31.4    -      -       +      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il