Contacts of the helix formed by residues 66 - 88 (chain F) in PDB entry 3DOY


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

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

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with PRO 66 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27E  MET*     3.8    17.0    -      -       +      -
     72E  GLU*     5.1     0.7    -      -       -      +
     54F  VAL*     3.4    35.2    -      -       +      -
     55F  PHE*     5.0     1.1    -      -       +      -
     58F  HIS*     3.7    28.3    -      -       +      +
     64F  ILE      3.1     4.2    -      -       -      +
     65F  PHE*     1.3    93.3    -      -       +      +
     67F  GLY*     1.3    61.3    +      -       -      +
     68F  VAL*     4.3     4.7    -      -       +      -
     69F  LEU*     2.9    39.9    +      -       +      +
     70F  ILE*     3.1    11.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 67 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72E  GLU*     5.5     0.6    +      -       -      -
    101E  PHE*     5.2     1.5    -      -       -      -
     65F  PHE      3.3     2.6    +      -       -      -
     66F  PRO*     1.3    73.0    -      -       -      +
     68F  VAL*     1.3    61.5    +      -       -      +
     70F  ILE*     3.1    19.2    +      -       -      +
     71F  VAL*     3.3     6.4    +      -       -      +
    109F  PHE*     3.2    41.4    -      -       -      -
   1006F   CL      3.3    21.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 68 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27E  MET*     4.8     0.4    -      -       +      -
     68E  VAL*     3.5    45.3    -      -       +      +
     69E  LEU*     4.4     9.4    -      -       +      -
     71E  VAL*     4.4     3.8    -      -       +      -
     72E  GLU*     3.5    35.4    +      -       +      +
    101E  PHE*     3.7    22.4    -      -       +      -
    104E  ILE*     4.3    10.3    -      -       +      -
     66F  PRO*     4.3    10.5    -      -       +      -
     67F  GLY*     1.3    75.8    -      -       -      +
     69F  LEU*     1.3    66.8    +      -       +      +
     70F  ILE      3.3     0.2    -      -       -      -
     71F  VAL*     3.5     8.8    +      -       -      +
     72F  GLU*     3.1    19.4    +      -       -      +
    109F  PHE*     5.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 69 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27E  MET*     5.2     3.6    -      -       +      -
     68E  VAL*     4.5    10.5    -      -       +      -
     69E  LEU*     4.7     9.0    -      -       +      -
     27F  MET*     4.6    15.5    -      -       +      -
     29F  LEU*     3.6    27.1    -      -       +      +
     54F  VAL*     3.8    23.3    -      -       +      -
     65F  PHE*     3.7    22.9    -      -       +      -
     66F  PRO*     2.9    40.8    +      -       +      +
     68F  VAL*     1.3    84.5    -      -       +      +
     70F  ILE*     1.3    60.1    +      -       -      +
     71F  VAL      3.2     0.2    -      -       -      -
     72F  GLU*     3.6     7.2    -      -       +      -
     73F  GLY*     2.9    23.2    +      -       -      -
    121F  TYR*     4.4     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 70 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65F  PHE*     3.9    20.6    -      -       +      +
     66F  PRO      3.1    10.7    +      -       -      +
     67F  GLY*     3.1    21.5    +      -       -      +
     69F  LEU*     1.3    78.4    -      -       -      +
     71F  VAL*     1.3    63.3    +      -       -      +
     73F  GLY*     3.2     3.6    +      -       -      -
     74F  MET*     3.1    24.8    +      -       -      +
    109F  PHE*     4.3    13.0    -      -       +      -
    111F  ILE      5.4     2.2    -      -       -      +
    113F  VAL*     3.8    28.7    -      -       +      +
    119F  LEU*     4.1    13.9    -      -       +      -
    121F  TYR*     3.6     2.1    -      -       +      -
    139F  ALA*     3.6    30.5    -      -       +      -
    146F  VAL*     4.8     5.2    -      -       +      +
    147F  ALA*     4.2     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 71 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68E  VAL*     4.7     2.0    -      -       +      -
    104E  ILE*     4.9     5.4    -      -       +      -
     67F  GLY      3.3    13.4    +      -       -      +
     68F  VAL*     3.6    11.0    -      -       -      +
     70F  ILE*     1.3    75.3    -      -       +      +
     72F  GLU*     1.3    59.5    +      -       -      +
     74F  MET*     3.0    11.5    +      -       -      +
     75F  ALA*     2.9    26.5    +      -       -      +
    101F  PHE*     4.2    17.0    -      -       +      -
    104F  ILE*     4.3    24.7    -      -       +      -
    107F  VAL*     4.8    13.5    -      -       +      -
    109F  PHE*     4.0    19.7    -      -       +      -
    148F  GLU      5.8     0.2    -      -       -      +
    149F  ALA*     4.9    11.0    -      -       +      -
    151F  LEU*     4.4     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 72 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58E  HIS*     4.5     7.9    +      -       -      -
     66E  PRO*     5.1     1.0    -      -       -      +
     67E  GLY      5.6     0.3    +      -       -      -
     68E  VAL*     3.5    19.6    +      -       +      +
     23F  HIS*     3.8    16.8    +      -       -      -
     27F  MET*     3.6    26.0    -      -       +      +
     29F  LEU*     3.9     6.5    -      -       +      -
     68F  VAL      3.1    17.2    +      -       -      +
     69F  LEU*     3.7    10.5    -      -       +      +
     70F  ILE      3.3     0.2    -      -       -      -
     71F  VAL*     1.3    75.2    -      -       -      +
     73F  GLY*     1.3    57.2    +      -       -      +
     75F  ALA*     3.2     5.7    +      -       -      +
     76F  GLN*     2.9    60.2    +      -       -      +
    101F  PHE*     3.2    27.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 73 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29F  LEU*     4.1    13.7    -      -       -      +
     30F  VAL*     3.7     2.6    -      -       -      +
     69F  LEU      2.9    12.5    +      -       -      -
     70F  ILE      3.2     1.1    +      -       -      -
     71F  VAL      3.2     0.2    -      -       -      -
     72F  GLU*     1.3    78.2    -      -       -      +
     74F  MET*     1.3    54.7    +      -       -      +
     76F  GLN*     3.7     2.9    +      -       -      -
     77F  SER*     3.0    29.5    +      -       -      -
    121F  TYR*     3.3    34.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 74 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70F  ILE*     3.1    20.1    +      -       -      +
     71F  VAL*     3.0    12.8    +      -       -      +
     73F  GLY*     1.3    75.2    -      -       -      +
     75F  ALA*     1.3    60.6    +      -       -      +
     77F  SER*     3.3     3.3    +      -       -      -
     78F  GLY*     2.9    23.6    +      -       -      -
    121F  TYR*     3.4    20.0    -      -       +      -
    123F  LEU*     3.5    32.3    -      -       +      +
    135F  VAL*     5.1     0.2    -      -       -      +
    137F  GLY      3.7    32.3    -      -       -      +
    138F  THR*     3.8    11.0    -      -       -      +
    139F  ALA*     4.1    16.8    -      -       +      -
    147F  ALA*     5.3     2.2    -      -       -      -
    148F  GLU      4.6     1.8    -      -       -      -
    149F  ALA*     3.8    27.6    -      -       +      +
    151F  LEU*     4.2     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 75 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71F  VAL      2.9     5.8    +      -       -      +
     72F  GLU*     3.2     7.2    +      -       -      +
     74F  MET*     1.3    73.6    -      -       -      +
     76F  GLN*     1.3    53.4    +      -       -      +
     78F  GLY*     3.0     2.6    +      -       -      -
     79F  GLY*     2.6    33.6    +      -       -      -
     99F  VAL*     6.0     1.3    -      -       -      +
    101F  PHE*     3.3    42.4    -      -       +      -
    151F  LEU*     3.7    22.9    -      -       +      +
    153F  ALA*     5.6     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 76 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21F  LEU*     3.9    13.1    -      -       +      +
     23F  HIS*     3.6    34.0    -      -       +      +
     27F  MET      2.8    24.8    +      -       -      -
     28F  LEU*     3.6     7.1    -      -       -      +
     29F  LEU*     2.7    32.8    +      -       -      +
     30F  VAL*     3.6    19.8    +      -       +      +
     72F  GLU*     2.9    44.6    +      -       -      +
     73F  GLY      3.9     0.2    -      -       -      +
     75F  ALA*     1.3    76.8    -      -       +      +
     77F  SER*     1.3    61.8    +      -       -      +
     79F  GLY*     3.0     3.6    +      -       -      +
     80F  PHE*     2.9    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 77 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  VAL*     3.9     9.2    -      -       -      +
     33F  ILE*     5.5     0.7    -      -       -      -
     42F  ILE*     3.4    24.2    -      -       -      +
     44F  ALA*     3.9    12.6    -      -       -      +
     73F  GLY      3.0    16.6    +      -       -      -
     74F  MET      3.4     8.7    -      -       -      -
     76F  GLN*     1.3    79.0    -      -       -      +
     78F  GLY*     1.3    63.4    +      -       -      +
     80F  PHE*     3.4     4.1    +      -       -      +
     81F  LEU      3.3    15.6    +      -       -      -
    121F  TYR*     3.1    23.8    -      -       -      +
    123F  LEU*     4.0    16.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 78 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42F  ILE*     4.7     1.3    -      -       -      -
     74F  MET      2.9    14.7    +      -       -      -
     75F  ALA      3.0     3.8    +      -       -      -
     77F  SER*     1.3    74.0    -      -       -      +
     79F  GLY*     1.3    66.8    +      -       -      +
     81F  LEU*     3.1     9.8    +      -       -      +
     82F  ALA*     2.9    22.6    +      -       -      +
    123F  LEU*     4.4     6.7    -      -       -      +
    133F  TRP*     5.5     1.0    -      -       -      +
    135F  VAL*     4.5    24.8    -      -       -      +
    151F  LEU*     6.0     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 79 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21F  LEU*     4.1     4.5    -      -       -      -
     23F  HIS*     6.5     0.4    -      -       -      -
     75F  ALA      2.6    19.1    +      -       -      -
     76F  GLN*     3.0     5.1    +      -       -      -
     78F  GLY*     1.3    72.4    -      -       -      +
     80F  PHE*     1.3    57.1    +      -       -      +
     82F  ALA*     3.0     8.8    +      -       -      +
     83F  PHE*     2.9    41.7    +      -       -      -
     99F  VAL*     5.4    13.0    -      -       -      -
    153F  ALA*     6.2     2.7    -      -       -      -
    155F  ILE*     5.9     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 80 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12F  PHE*     3.8    42.4    -      +       +      -
     16F  HIS      4.5     1.6    -      -       -      -
     17F  ILE*     4.2    19.7    -      -       +      -
     20F  ILE*     3.9    34.8    -      -       +      -
     21F  LEU*     3.7    20.5    -      -       +      +
     33F  ILE*     4.1    18.8    -      -       +      -
     36F  LEU*     4.1    12.3    -      -       +      -
     42F  ILE*     3.8    18.2    -      -       +      -
     76F  GLN      2.9    12.0    +      -       -      +
     77F  SER*     3.6     9.0    -      -       -      +
     78F  GLY      3.2     0.2    -      -       -      -
     79F  GLY*     1.3    76.3    -      -       -      +
     81F  LEU*     1.3    59.1    +      -       -      +
     83F  PHE*     3.6     3.9    +      -       -      +
     84F  THR*     3.0    48.1    +      -       +      +
     89F  PHE*     4.5     0.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 81 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36F  LEU*     3.7    22.9    -      -       +      -
     37F  GLN      3.8    20.0    -      -       -      +
     38F  ALA*     4.5     0.7    -      -       -      -
     39F  ASN      4.3     1.3    -      -       -      +
     41F  LYS*     3.8    17.7    -      -       -      +
     42F  ILE*     3.7    23.6    -      -       +      -
     77F  SER      3.3     9.4    +      -       -      +
     78F  GLY*     3.1    10.6    +      -       -      +
     80F  PHE*     1.3    80.9    -      -       -      +
     82F  ALA*     1.3    55.5    +      -       -      +
     84F  THR*     3.4     3.2    +      -       -      +
     85F  SER*     2.5    49.1    +      -       -      +
    123F  LEU*     4.4     4.5    -      -       +      +
    124F  GLU      5.0     0.4    -      -       -      -
    125F  VAL*     3.7    30.1    -      -       +      +
    133F  TRP*     4.8     2.2    -      -       +      -
    135F  VAL*     5.2     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 82 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78F  GLY      2.9    12.7    +      -       -      +
     79F  GLY*     3.0    10.7    +      -       -      +
     81F  LEU*     1.3    74.3    -      -       -      +
     83F  PHE*     1.3    66.0    +      -       -      +
     85F  SER*     3.9     0.9    -      -       -      -
     86F  LEU*     3.0    28.4    +      -       -      +
    133F  TRP*     3.7    39.5    -      -       +      -
    155F  ILE*     3.6    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 83 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20F  ILE*     3.5    43.3    -      -       +      -
     21F  LEU*     4.2     5.8    -      -       +      -
     22F  PRO*     4.3    11.7    -      -       +      -
     79F  GLY      2.9    31.1    +      -       -      +
     80F  PHE      3.9     1.8    -      -       -      +
     82F  ALA*     1.3    74.5    -      -       -      +
     84F  THR*     1.3    58.5    +      -       -      +
     86F  LEU*     3.5     1.7    -      -       -      +
     87F  TRP*     2.8    58.4    +      +       -      -
     88F  GLY      3.9     3.4    -      -       -      +
     94F  ALA*     4.3    15.9    -      -       +      -
     97F  LYS*     3.7    34.5    -      -       +      -
     98F  ILE      4.6     0.2    -      -       -      -
     99F  VAL*     3.6    31.6    -      -       +      -
    155F  ILE*     4.0    12.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 84 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12F  PHE*     5.7     1.1    -      -       +      -
     20F  ILE*     4.7     5.6    -      -       +      -
     36F  LEU*     3.8    26.2    -      -       +      +
     38F  ALA*     5.7     1.1    -      -       -      +
     80F  PHE*     3.0    46.0    +      -       +      +
     81F  LEU*     3.4     4.3    +      -       -      +
     83F  PHE*     1.3    76.1    -      -       +      +
     85F  SER*     1.3    65.9    +      -       -      +
     86F  LEU      3.1     1.6    -      -       -      -
     88F  GLY*     2.6    45.6    +      -       -      +
     89F  PHE*     4.7     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 85 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38F  ALA*     3.7    12.9    -      -       -      +
     39F  ASN*     3.1    36.5    +      -       -      +
     81F  LEU*     2.5    32.3    +      -       -      +
     84F  THR*     1.3    78.0    +      -       -      +
     86F  LEU*     1.3    63.3    +      -       -      +
     88F  GLY      4.9     0.2    +      -       -      -
    133F  TRP*     3.4    25.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 86 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82F  ALA      3.0    19.7    +      -       -      +
     83F  PHE      3.5     3.4    -      -       -      +
     85F  SER*     1.3    81.9    -      -       -      +
     87F  TRP*     1.3    85.0    +      -       +      +
    128F  HIS*     5.7     2.9    -      -       +      +
    130F  GLY*     3.7    13.7    -      -       -      +
    131F  MET*     3.5    31.2    -      -       +      -
    133F  TRP*     3.7    27.8    -      -       +      +
    155F  ILE*     3.9    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 87 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83F  PHE*     2.8    56.6    +      +       -      +
     86F  LEU*     1.3    97.4    +      -       +      +
     88F  GLY*     1.3    65.4    +      -       -      +
     89F  PHE      4.6     0.2    -      -       -      -
     90F  ASP*     3.7    16.5    -      -       +      +
     93F  ILE*     3.8    42.0    -      -       +      +
     94F  ALA      5.6     0.7    -      -       -      -
     97F  LYS*     3.9    23.8    -      -       +      -
    131F  MET*     3.6    40.5    -      -       +      +
    155F  ILE*     3.8    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 88 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20F  ILE*     4.9     1.7    -      -       -      +
     83F  PHE      3.9     2.9    -      -       -      +
     84F  THR*     2.6    42.7    +      -       -      +
     86F  LEU      3.8     0.6    -      -       -      -
     87F  TRP*     1.3    78.9    -      -       -      +
     89F  PHE*     1.3    58.2    +      -       -      -
     90F  ASP*     3.0     7.1    +      -       -      +
----------------------------------------------------------
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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