Contacts of the helix formed by residues 695 - 718 (chain A) in PDB entry 1OFD


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 ASP 695 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    677A  TRP*     3.4    14.0    +      -       +      +
    693A  ARG      4.1     1.2    +      -       -      -
    694A  ILE*     1.3    78.6    -      -       -      +
    696A  LEU*     1.3    63.8    +      -       -      +
    697A  PRO*     3.5    15.5    -      -       +      +
    698A  THR*     2.7    34.7    +      -       -      -
    699A  ALA*     3.2    15.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 696 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433A  GLU*     3.7    47.6    -      -       +      +
    673A  VAL      4.7     0.4    -      -       -      +
    674A  ARG*     4.0    20.2    -      -       +      +
    677A  TRP*     3.5    54.9    -      -       +      +
    678A  LEU*     4.8     9.6    -      -       +      -
    695A  ASP*     1.3    71.6    -      -       -      +
    697A  PRO*     1.3    72.8    -      -       +      +
    699A  ALA*     3.1     6.3    +      -       +      +
    700A  LEU*     3.0    38.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 697 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431A  PHE*     4.6     8.8    -      -       +      +
    433A  GLU*     3.6    28.3    -      -       +      +
    695A  ASP*     3.5    19.3    -      -       +      +
    696A  LEU*     1.3    95.4    -      -       +      +
    698A  THR*     1.3    56.5    +      -       -      +
    700A  LEU*     3.6     8.5    +      -       +      +
    701A  LYS*     3.0    30.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 698 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    693A  ARG      4.3    14.6    +      -       -      +
    694A  ILE*     4.1     7.9    -      -       +      -
    695A  ASP*     2.7    29.9    +      -       -      -
    697A  PRO*     1.3    75.8    -      -       -      +
    699A  ALA*     1.3    55.4    +      -       -      +
    701A  LYS*     3.3    23.5    +      -       -      +
    702A  ASN*     2.7    57.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 699 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    465A  ALA*     3.5    24.2    -      -       +      +
    673A  VAL*     4.0    17.5    -      -       +      -
    676A  TRP*     4.2    14.1    -      -       +      -
    677A  TRP*     4.3     8.5    -      -       +      -
    694A  ILE*     3.5    15.6    -      -       +      +
    695A  ASP      3.2     8.3    +      -       -      +
    696A  LEU*     3.1    10.4    +      -       +      +
    698A  THR*     1.3    75.2    -      -       -      +
    700A  LEU*     1.3    56.9    +      -       -      +
    702A  ASN*     3.5     2.6    -      -       -      +
    703A  TYR*     3.0    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 700 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431A  PHE*     3.6    49.0    -      -       +      -
    432A  ALA      3.9    14.4    -      -       -      +
    433A  GLU*     4.9     2.5    -      -       +      -
    670A  LEU*     3.9    37.9    -      -       +      +
    673A  VAL*     3.9    19.5    -      -       +      -
    674A  ARG*     4.3     8.3    -      -       +      +
    696A  LEU*     3.0    40.6    +      -       +      +
    697A  PRO*     4.0     3.6    -      -       +      +
    699A  ALA*     1.3    74.0    -      -       -      +
    701A  LYS*     1.3    65.0    +      -       -      +
    703A  TYR*     3.2     7.1    +      -       -      +
    704A  ARG      3.1    17.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 701 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429A  ASP      5.8     1.8    -      -       -      +
    431A  PHE*     3.8    16.9    -      -       +      -
    697A  PRO      3.0    18.1    +      -       -      +
    698A  THR*     3.6    27.2    +      -       -      +
    700A  LEU*     1.3    75.5    -      -       -      +
    702A  ASN*     1.3    62.0    +      -       -      +
    704A  ARG*     3.3     6.8    +      -       +      +
    705A  GLN*     2.8    42.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 702 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464A  MET      3.4     9.0    -      -       -      +
    465A  ALA      3.0    29.3    +      -       -      +
    466A  SER      3.8     6.9    +      -       -      -
    467A  GLN      4.4     2.0    -      -       -      +
    468A  GLY*     3.7    14.9    -      -       -      +
    694A  ILE*     3.6    21.4    -      -       -      +
    698A  THR*     2.7    33.1    +      -       -      +
    699A  ALA      3.5     0.4    -      -       -      +
    701A  LYS*     1.3    78.1    +      -       -      +
    703A  TYR*     1.3    62.8    +      -       -      +
    705A  GLN*     3.2    15.3    +      -       -      +
    706A  SER*     2.9    26.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 703 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    461A  VAL*     4.4    15.5    -      -       +      -
    464A  MET*     3.6    32.7    +      -       +      -
    465A  ALA*     4.3     2.7    -      -       -      -
    545A  LEU*     4.2     9.0    -      -       +      -
    648A  TRP*     2.8    41.6    +      -       -      -
    653A  PHE*     3.6     7.8    -      -       -      -
    666A  PRO*     4.5     3.8    -      -       +      -
    669A  ALA*     3.4    17.3    -      -       +      +
    670A  LEU*     3.8    29.2    -      -       +      -
    673A  VAL*     4.0    23.1    -      -       +      -
    699A  ALA      3.0    13.9    +      -       -      +
    700A  LEU*     3.2     9.8    +      -       -      +
    702A  ASN*     1.3    76.3    -      -       -      +
    704A  ARG*     1.3    65.2    -      -       -      +
    706A  SER*     3.2     5.9    +      -       -      -
    707A  VAL*     3.1    36.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 704 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    428A  SER      3.2    23.0    +      -       -      -
    429A  ASP*     5.1     1.4    +      -       -      +
    431A  PHE*     3.9    23.5    -      -       +      -
    542A  ARG*     4.2    10.8    -      -       -      +
    543A  SER*     5.7     2.4    -      -       -      -
    545A  LEU*     3.1    43.4    +      -       +      +
    547A  ASN*     3.5    20.2    -      -       -      +
    550A  GLU*     2.5    36.2    +      -       -      -
    700A  LEU      3.1    12.4    +      -       -      +
    701A  LYS*     3.3     9.2    +      -       -      +
    703A  TYR*     1.3    77.9    -      -       +      +
    705A  GLN*     1.3    63.8    +      -       -      +
    707A  VAL*     3.2     2.4    +      -       -      +
    708A  GLU*     3.0    48.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 705 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    467A  GLN      4.7     2.0    +      -       -      -
    468A  GLY*     3.0    32.7    +      -       -      +
    701A  LYS*     2.8    29.1    +      -       +      +
    702A  ASN*     3.6    12.2    +      -       -      +
    704A  ARG*     1.3    75.5    -      -       -      +
    706A  SER*     1.3    57.3    +      -       -      +
    708A  GLU*     3.4    11.0    +      -       -      +
    709A  ALA*     2.9    35.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 706 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464A  MET*     2.9    40.9    +      -       -      -
    468A  GLY      2.9    31.6    -      -       -      -
    469A  LYS*     3.0    11.2    +      -       -      +
    470A  GLU*     4.1     6.8    +      -       -      +
    650A  THR*     3.9     4.5    +      -       -      -
    702A  ASN      2.9     5.7    +      -       -      -
    703A  TYR      3.2    10.3    +      -       -      -
    705A  GLN*     1.3    78.3    -      -       -      +
    707A  VAL*     1.3    56.1    +      -       -      +
    709A  ALA*     3.8     3.5    -      -       -      +
    710A  GLY*     3.0    24.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 707 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464A  MET*     5.1     4.5    -      -       -      -
    545A  LEU*     3.9    19.3    -      -       +      -
    648A  TRP      4.7     2.7    -      -       -      +
    650A  THR*     4.1    11.0    +      -       -      +
    653A  PHE*     3.6    53.6    -      -       +      -
    703A  TYR*     3.1    34.2    +      -       +      +
    704A  ARG      3.2     7.4    +      -       -      +
    706A  SER*     1.3    74.2    -      -       -      +
    708A  GLU*     1.3    54.1    +      -       +      +
    710A  GLY*     3.1     2.1    +      -       -      -
    711A  LEU*     2.8    43.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 708 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  LEU*     3.6    22.0    -      -       +      +
    543A  SER*     2.6    38.0    +      -       -      +
    544A  PRO*     5.4     1.1    -      -       +      -
    545A  LEU*     5.5     1.3    -      -       +      -
    704A  ARG*     3.0    43.9    +      -       +      +
    705A  GLN*     3.9     9.3    -      -       -      +
    707A  VAL*     1.3    78.6    -      -       +      +
    709A  ALA*     1.3    61.5    +      -       -      +
    711A  LEU*     3.1     6.5    +      -       +      +
    712A  PHE*     3.0    34.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 709 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468A  GLY      5.5     2.2    -      -       -      +
    469A  LYS*     6.1     3.1    -      -       +      -
    470A  GLU*     5.0     0.7    -      -       -      +
    509A  PRO*     5.4     0.5    -      -       -      +
    510A  LEU*     6.4     2.0    -      -       +      -
    705A  GLN*     2.9    22.2    +      -       +      +
    706A  SER*     3.8     6.1    -      -       -      +
    708A  GLU*     1.3    75.4    -      -       -      +
    710A  GLY*     1.3    57.2    +      -       -      +
    712A  PHE*     3.3    12.4    +      -       -      +
    713A  LYS*     3.0    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 710 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    470A  GLU*     3.5    19.8    +      -       -      +
    650A  THR*     3.3    26.5    -      -       -      -
    706A  SER      3.0    11.4    +      -       -      -
    707A  VAL      3.1     1.5    +      -       -      -
    709A  ALA*     1.3    76.4    -      -       -      +
    711A  LEU*     1.3    57.3    +      -       -      +
    713A  LYS*     3.4     2.9    +      -       -      +
    714A  ILE*     3.0    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 711 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  LEU*     4.1    19.1    -      -       +      -
    544A  PRO*     3.6    30.3    -      -       +      -
    650A  THR      4.1     7.9    -      -       -      +
    653A  PHE*     4.1    16.6    -      -       +      +
    654A  ALA*     3.7    40.8    -      -       +      +
    657A  VAL*     5.6     1.8    -      -       +      -
    707A  VAL*     2.8    23.4    +      -       +      +
    708A  GLU*     3.1     9.1    +      -       +      +
    710A  GLY*     1.3    75.4    -      -       -      +
    712A  PHE*     1.3    64.5    +      -       -      +
    714A  ILE*     3.3     2.0    +      -       +      +
    715A  LEU*     3.0    33.4    +      -       +      +
    723A  LEU*     4.6    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 712 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509A  PRO*     3.6     8.0    -      -       +      +
    513A  ASN*     3.4    26.0    -      -       -      +
    516A  MET*     3.3    47.8    -      -       +      +
    517A  SER*     3.9    10.8    -      -       -      -
    518A  LEU*     3.7    42.4    -      -       +      -
    708A  GLU*     3.0    27.2    +      -       +      -
    709A  ALA*     3.6    10.8    -      -       -      +
    711A  LEU*     1.3    74.5    -      -       -      +
    713A  LYS*     1.3    61.8    +      -       -      +
    715A  LEU*     3.6     6.5    +      -       +      +
    716A  SER*     3.0    27.2    +      -       -      -
    721A  SER      5.2     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 713 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    470A  GLU*     3.4    26.7    -      -       -      +
    509A  PRO*     4.0    15.3    -      -       +      +
    709A  ALA      3.0    14.4    +      -       -      +
    710A  GLY      3.5     8.7    -      -       -      +
    711A  LEU      3.2     0.2    -      -       -      -
    712A  PHE*     1.3    76.3    -      -       -      +
    714A  ILE*     1.3    64.3    +      -       +      +
    716A  SER*     2.7    23.2    +      -       -      +
    717A  LYS*     3.1    27.2    +      -       -      +
    975A  GLU*     2.9    38.1    +      -       +      +
    978A  GLN*     5.9     0.8    -      -       -      +
   1069A  PRO*     3.8    18.0    -      -       +      +
   1071A  SER*     4.9     1.8    -      -       -      +
   1072A  SER*     4.3     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 714 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    497A  GLN*     3.4    44.0    -      -       +      +
    498A  ARG      5.2     1.8    -      -       -      +
    650A  THR*     3.6    42.0    -      -       +      +
    654A  ALA*     3.8    13.9    -      -       +      -
    710A  GLY      3.0    17.5    +      -       -      +
    711A  LEU*     3.3     4.7    +      -       +      +
    713A  LYS*     1.3    77.5    -      -       +      +
    715A  LEU*     1.3    63.6    -      -       +      +
    717A  LYS*     3.2    30.4    +      -       -      +
    718A  MET*     3.9     3.6    +      -       -      +
    726A  TYR*     3.4    31.8    -      -       +      +
    731A  ILE*     6.0     0.5    -      -       -      +
   1071A  SER*     5.8     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 715 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  MET*     5.6     1.3    -      -       -      -
    518A  LEU*     4.8     6.5    -      -       +      -
    711A  LEU*     3.0    26.0    +      -       +      +
    712A  PHE*     3.8     7.9    -      -       +      +
    714A  ILE*     1.3    76.8    -      -       +      +
    716A  SER*     1.3    61.6    +      -       -      +
    718A  MET*     3.1    11.1    +      -       -      +
    720A  ILE*     3.0    45.2    +      -       +      +
    721A  SER      4.1     8.7    -      -       -      +
    722A  LEU      3.6     9.6    -      -       -      +
    723A  LEU*     3.4    44.9    -      -       +      +
    726A  TYR*     3.3    42.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 716 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    506A  PRO*     3.2     4.6    -      -       -      +
    507A  ILE*     3.0    59.9    +      -       -      -
    509A  PRO*     3.3    27.0    -      -       -      +
    516A  MET*     4.6     2.2    -      -       -      -
    712A  PHE      3.0    16.1    +      -       -      -
    713A  LYS*     2.7    19.2    +      -       -      +
    715A  LEU*     1.3    73.5    -      -       -      +
    717A  LYS*     1.3    64.7    +      -       -      +
    719A  GLY      3.0     4.1    +      -       -      -
    720A  ILE      4.2     0.9    -      -       -      -
    974A  GLY      4.7     2.2    +      -       -      -
    975A  GLU*     6.1     0.7    -      -       -      +
   1004A  PRO*     5.4     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 717 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    497A  GLN*     2.8    34.4    +      -       +      +
    498A  ARG      4.6     3.6    -      -       -      +
    499A  PHE*     3.5    10.5    -      -       +      +
    500A  ALA*     2.9    25.2    +      -       -      +
    506A  PRO*     3.7     6.8    -      -       -      +
    713A  LYS*     3.1    27.6    +      -       -      +
    714A  ILE*     3.3    16.0    -      -       -      +
    715A  LEU      3.2     0.2    -      -       -      -
    716A  SER*     1.3    82.8    +      -       -      +
    718A  MET*     1.3    57.6    +      -       -      +
    974A  GLY*     3.4    38.3    -      -       -      +
    975A  GLU*     3.4    20.4    +      -       +      -
   1071A  SER*     5.0     2.0    +      -       -      -
   1072A  SER*     3.1    23.8    +      -       -      +
   1076A  ALA*     3.9    14.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 718 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  ASN*     2.9    30.6    +      -       -      +
    498A  ARG*     3.6    29.4    -      -       -      +
    499A  PHE      3.5    35.7    -      -       -      +
    500A  ALA*     3.8     8.7    -      -       -      +
    504A  ASN*     3.0    25.0    +      -       -      +
    714A  ILE      3.9     2.4    +      -       -      +
    715A  LEU*     3.1     9.3    +      -       -      +
    716A  SER      3.1     0.4    -      -       -      -
    717A  LYS*     1.3    76.6    -      -       -      +
    719A  GLY*     1.3    58.6    +      -       -      +
    720A  ILE*     3.7    23.8    -      -       +      -
    726A  TYR*     6.1     0.4    -      -       +      -
    731A  ILE*     3.7    26.7    -      -       +      -
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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