Contacts of the helix formed by residues 73 - 94 (chain B) in PDB entry 5HZZ


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 LEU 73 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58B  LEU*     3.9    23.1    -      -       +      -
     68B  LEU*     4.8     6.1    -      -       +      -
     69B  SER      3.8     8.5    -      -       -      +
     70B  ALA*     3.0    20.5    +      -       +      +
     72B  ASP*     1.3    78.0    -      -       -      +
     74B  ALA*     1.3    65.2    +      -       -      +
     75B  PRO*     3.4     1.1    -      -       -      -
     76B  LEU*     3.2     5.6    +      -       -      +
     77B  ALA*     2.9    22.0    +      -       -      +
     29D  PRO*     4.8     0.9    -      -       +      -
     30D  THR      3.8    36.1    -      -       -      +
     31D  PRO*     4.1     2.7    -      -       +      -
     32D  PRO*     3.8    21.5    -      -       +      -
     94D  LEU*     4.3    13.9    -      -       +      +
     96D  ILE*     4.0    26.5    -      -       +      -
    138D  ILE*     4.1     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 74 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  GLY      3.2    13.0    +      -       -      +
     73B  LEU*     1.3    76.7    -      -       -      +
     75B  PRO*     1.3    64.5    -      -       +      +
     77B  ALA      3.4     0.2    +      -       -      -
     78B  HIS*     2.8    30.5    +      -       -      +
    134D  VAL*     3.5     5.9    -      -       +      +
    135D  ARG*     3.6    43.3    -      -       +      +
    138D  ILE*     3.5    18.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 75 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54B  GLU*     3.5    28.7    -      -       -      +
     72B  ASP*     3.6    17.0    -      -       -      +
     73B  LEU      3.6     0.4    -      -       -      -
     74B  ALA*     1.3    94.3    -      -       +      +
     76B  LEU*     1.3    60.6    +      -       -      +
     78B  HIS*     3.3     7.3    +      -       +      +
     79B  GLU*     3.0    30.0    +      -       -      +
    135D  ARG*     4.2    16.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 76 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  VAL*     4.1     8.7    -      -       +      -
     54B  GLU*     3.8    22.3    +      -       +      +
     55B  ILE*     3.7    28.3    -      -       +      -
     58B  LEU*     3.7    29.2    -      -       +      -
     72B  ASP      5.1     0.4    +      -       -      -
     73B  LEU*     3.2     7.7    +      -       +      +
     75B  PRO*     1.3    79.8    -      -       -      +
     77B  ALA*     1.3    58.7    +      -       -      +
     79B  GLU*     3.2     1.6    +      -       -      -
     80B  LEU*     2.9    54.7    +      -       +      +
     37D  LEU*     4.0    17.9    -      -       +      -
     90D  ALA*     6.3     0.7    -      -       +      -
     94D  LEU*     3.9    21.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 77 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73B  LEU      2.9    16.1    +      -       -      +
     74B  ALA      3.7     3.6    -      -       -      +
     76B  LEU*     1.3    77.4    -      -       -      +
     78B  HIS*     1.3    64.7    +      -       -      +
     80B  LEU*     3.4     3.0    +      -       -      +
     81B  ALA*     3.0    23.7    +      -       -      +
     91D  LEU*     3.7    25.3    -      -       +      +
     94D  LEU*     5.2     0.8    -      -       -      +
     96D  ILE*     4.0    21.5    -      -       +      -
    101D  VAL*     3.7     6.2    -      -       +      +
    134D  VAL*     3.9    13.5    -      -       +      -
    138D  ILE*     4.2     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 78 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74B  ALA      2.8    18.1    +      -       -      +
     75B  PRO*     3.4     8.7    -      -       +      +
     77B  ALA*     1.3    75.4    -      -       -      +
     79B  GLU*     1.3    67.3    +      -       -      +
     81B  ALA*     3.1     4.5    +      -       -      +
     82B  ASP*     2.9    48.8    +      -       -      -
    101D  VAL*     4.6     2.0    -      -       -      -
    105D  VAL*     4.0    10.4    -      -       +      +
    131D  PRO*     6.4     0.2    -      -       +      -
    132D  ALA*     3.9    32.2    +      -       +      +
    134D  VAL*     3.6    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 79 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  ALA*     4.7     1.9    -      -       -      +
     50B  GLU*     3.6    24.2    -      -       +      +
     51B  VAL*     3.3    31.7    -      -       +      +
     54B  GLU*     3.7    22.5    -      -       +      +
     75B  PRO*     3.0    21.9    +      -       -      +
     76B  LEU      3.2     2.4    +      -       -      +
     78B  HIS*     1.3    82.3    +      -       -      +
     80B  LEU*     1.3    65.1    +      -       -      +
     82B  ASP*     3.3     5.5    +      -       -      +
     83B  LEU      3.0    17.8    +      -       -      -
    201B   MN      2.2    36.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 80 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  VAL*     3.8    25.8    -      -       +      -
     55B  ILE*     5.8     0.7    -      -       +      -
     76B  LEU*     2.9    44.1    +      -       +      +
     77B  ALA      3.7     4.0    -      -       -      +
     79B  GLU*     1.3    77.0    -      -       -      +
     81B  ALA*     1.3    57.1    +      -       -      +
     83B  LEU*     3.2     2.1    +      -       +      -
     84B  LEU*     3.0    24.7    +      -       -      +
     44D  LEU*     4.3     9.0    -      -       +      -
     87D  THR*     3.3    29.7    -      -       +      +
     90D  ALA*     4.0    27.6    -      -       +      -
     91D  LEU*     3.8    33.0    -      -       +      -
     94D  LEU*     4.2     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 81 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  ALA      3.0    13.8    +      -       -      +
     78B  HIS      3.5     7.2    -      -       -      +
     80B  LEU*     1.3    73.2    -      -       -      +
     82B  ASP*     1.3    61.0    +      -       -      +
     84B  LEU*     3.3    16.1    +      -       +      +
     85B  TYR*     2.9    26.7    +      -       -      +
     91D  LEU*     4.6     3.1    -      -       +      +
     98D  ALA      5.6     0.2    -      -       -      +
    101D  VAL*     3.6    22.7    -      -       +      -
    102D  PHE*     4.2    16.5    -      -       -      +
    105D  VAL*     3.9    16.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 82 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  ALA*     4.5     7.5    -      -       +      +
     78B  HIS*     2.9    31.8    +      -       -      +
     79B  GLU*     3.3     9.5    +      -       -      +
     81B  ALA*     1.3    75.7    -      -       -      +
     83B  LEU*     1.3    62.3    +      -       -      +
     85B  TYR*     3.2     8.1    +      -       -      +
     86B  VAL*     3.1    26.6    +      -       -      +
    201B   MN      2.2    39.0    +      -       -      +
    105D  VAL*     3.6    20.1    -      -       -      +
    109D  ASN*     5.2     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 83 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  LEU*     4.2     9.2    -      -       +      +
     47B  ALA*     3.9    20.5    -      -       +      +
     48B  SER*     3.8    26.7    -      -       -      +
     51B  VAL*     4.2    16.2    -      -       +      -
     79B  GLU      3.0    12.9    +      -       -      +
     80B  LEU*     3.2     8.7    +      -       +      +
     82B  ASP*     1.3    74.4    -      -       -      +
     84B  LEU*     1.3    61.7    +      -       -      +
     86B  VAL*     3.3    10.0    +      -       +      +
     87B  THR*     2.7    44.0    +      -       -      +
     44D  LEU*     3.8    18.8    -      -       +      -
     48D  SER*     5.8     0.2    -      -       -      +
     83D  LEU*     4.5     9.0    -      -       +      -
     87D  THR*     3.5    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 84 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80B  LEU      3.0    15.5    +      -       -      +
     81B  ALA*     3.4    11.7    -      -       +      +
     83B  LEU*     1.3    74.9    -      -       -      +
     85B  TYR*     1.3    58.3    +      -       -      +
     87B  THR*     4.4     3.4    -      -       -      -
     88B  TYR*     2.8    39.0    +      -       +      +
     84D  LEU*     3.9    19.7    -      -       +      +
     87D  THR*     3.6    25.1    -      -       +      -
     88D  TYR*     3.8    45.3    -      -       +      +
     91D  LEU*     4.2    17.7    -      -       +      -
     98D  ALA*     4.7     2.7    -      -       +      -
    102D  PHE*     3.9    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 85 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  LEU*     3.7    27.2    -      -       +      +
     17B  PHE*     3.4    38.9    -      +       -      +
     81B  ALA      2.9    12.1    +      -       -      +
     82B  ASP*     3.4    12.8    -      -       -      +
     83B  LEU      3.1     0.6    -      -       -      -
     84B  LEU*     1.3    76.3    -      -       -      +
     86B  VAL*     1.3    63.3    +      -       +      +
     89B  GLY*     2.8    24.3    +      -       -      -
    102D  PHE*     3.5    29.8    -      +       -      -
    105D  VAL*     3.8    14.6    -      -       +      -
    106D  HIS*     2.7    41.9    +      -       -      -
    109D  ASN*     3.5    29.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 86 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  ARG*     3.0    30.2    +      -       -      +
     43B  LEU*     3.9    38.1    -      -       +      +
     44B  LEU*     3.9    16.5    -      -       +      +
     47B  ALA*     3.8    22.9    -      -       +      -
     82B  ASP      3.1    13.1    +      -       -      +
     83B  LEU*     3.4    12.3    -      -       +      +
     85B  TYR*     1.3    78.7    -      -       +      +
     87B  THR*     1.3    60.9    +      -       -      +
     89B  GLY      3.6     0.7    -      -       -      -
     90B  ALA*     3.0    14.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  LEU*     3.6    15.9    -      -       -      +
     83B  LEU*     2.7    26.3    +      -       -      +
     84B  LEU*     5.8     0.2    -      -       -      -
     86B  VAL*     1.3    73.2    -      -       -      +
     88B  TYR*     1.3    67.4    +      -       -      +
     89B  GLY      3.1     0.9    -      -       -      -
     90B  ALA*     3.1    13.5    +      -       -      +
     91B  LEU*     3.2    15.2    +      -       -      +
     80D  LEU*     3.5    42.3    -      -       +      +
     83D  LEU*     3.7    17.4    -      -       +      +
     84D  LEU*     3.5    23.6    -      -       +      +
     87D  THR*     5.5     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10B  ASN*     3.5    18.9    +      -       +      +
     11B  ALA*     3.7    27.5    +      -       +      -
     14B  LEU*     3.7    19.1    -      -       +      +
     84B  LEU*     2.8    29.2    +      -       +      +
     87B  THR*     1.3    74.3    -      -       -      +
     89B  GLY*     1.3    63.3    +      -       -      +
     91B  LEU*     3.3     5.8    +      -       -      +
     92B  ASP*     2.9    25.5    +      -       -      +
     98B  ALA*     3.7    24.9    -      -       +      -
     99B  ASP*     4.5     0.3    +      -       -      -
     10D  ASN*     2.9    24.0    +      -       -      -
     84D  LEU*     3.8    22.2    -      -       +      +
     88D  TYR*     2.4    38.5    +      +       -      -
    102D  PHE*     4.0    16.4    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 89 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  LEU*     3.6    17.7    -      -       -      +
     18B  HIS*     3.6     7.1    -      -       -      -
     40B  ARG*     3.4    16.2    -      -       -      -
     85B  TYR      2.8    21.6    +      -       -      -
     86B  VAL      3.5     0.2    +      -       -      -
     87B  THR      3.1     0.6    -      -       -      -
     88B  TYR*     1.3    76.5    -      -       -      +
     90B  ALA*     1.3    61.3    +      -       -      +
     92B  ASP      3.4     0.3    +      -       -      -
     93B  GLN*     3.1    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 90 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  ARG*     3.4    34.3    -      -       +      +
     44B  LEU*     5.2     4.9    -      -       +      -
     86B  VAL      3.0    13.6    +      -       -      +
     87B  THR*     3.1     7.8    +      -       -      +
     89B  GLY*     1.3    74.1    -      -       -      +
     91B  LEU*     1.3    64.9    +      -       -      +
     93B  GLN*     3.3     4.5    +      -       -      +
     94B  LEU*     3.1    30.3    +      -       +      +
     80D  LEU*     4.2    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87B  THR      3.2    11.8    +      -       -      +
     88B  TYR*     3.8     6.1    -      -       -      +
     90B  ALA*     1.3    76.8    -      -       -      +
     92B  ASP*     1.3    63.5    +      -       -      +
     94B  LEU*     3.1    11.7    +      -       +      +
     96B  ILE*     3.0    60.1    +      -       +      +
     98B  ALA*     3.8    27.1    -      -       +      -
    101B  VAL*     5.4     2.5    -      -       +      -
     77D  ALA*     4.1    17.7    -      -       +      +
     80D  LEU*     3.8    39.3    -      -       +      -
     81D  ALA*     4.6     3.6    -      -       +      +
     84D  LEU*     4.0    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  ALA      4.6     3.6    -      -       -      +
     14B  LEU*     4.4     7.0    -      -       +      -
     15B  HIS*     2.7    42.1    +      -       -      +
     18B  HIS*     2.7    24.8    +      -       +      +
     25B  THR*     2.6    31.0    +      -       -      +
     26B  PRO      4.3     1.4    -      -       -      +
     88B  TYR      2.9    16.6    +      -       -      +
     89B  GLY      3.8     4.3    -      -       -      +
     91B  LEU*     1.3    77.6    -      -       -      +
     93B  GLN*     1.3    56.2    +      -       -      +
     95B  GLY*     2.9    19.2    +      -       -      +
     96B  ILE      4.5     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  HIS*     3.6    24.6    +      -       +      -
     23B  ALA*     5.0     8.5    +      -       -      +
     25B  THR*     3.8    17.8    -      -       +      +
     26B  PRO*     3.8    14.0    -      -       -      +
     30B  THR*     4.9     2.3    -      -       -      +
     32B  PRO*     5.5     0.3    -      -       -      +
     36B  LEU*     3.1    48.1    -      -       +      +
     39B  LEU*     5.9     0.5    -      -       -      +
     40B  ARG*     3.4    23.9    +      -       +      +
     89B  GLY      3.1    18.9    +      -       -      +
     90B  ALA*     3.3     6.0    +      -       -      +
     92B  ASP*     1.3    76.3    -      -       -      +
     94B  LEU*     1.3    61.8    +      -       +      +
     95B  GLY      3.2     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  PRO*     3.4     2.8    -      -       -      +
     30B  THR*     2.9    33.5    +      -       -      +
     32B  PRO*     3.5    41.5    -      -       +      -
     36B  LEU*     5.4     2.5    -      -       +      -
     37B  LEU*     4.6     8.3    -      -       +      -
     90B  ALA*     3.1    18.7    +      -       +      +
     91B  LEU*     3.1    10.2    +      -       +      +
     93B  GLN*     1.3    77.4    -      -       +      +
     95B  GLY*     1.3    59.6    +      -       -      +
     96B  ILE*     3.7    24.1    -      -       +      +
     73D  LEU*     4.3     9.1    -      -       +      +
     76D  LEU*     4.0    24.0    -      -       +      -
     77D  ALA      5.7     0.7    -      -       -      +
     80D  LEU*     4.1    15.5    -      -       +      -
----------------------------------------------------------
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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