Contacts of the helix formed by residues 70 - 91 (chain Y) in PDB entry 3J9X


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 GLY 70 (chain Y).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1598    A      3.4    26.3    +      -       -      +
    1608    T      4.1     2.1    +      -       -      -
     69Y  THR*     1.3    76.1    -      -       -      +
     71Y  PRO*     1.3    69.3    -      -       -      +
     73Y  ARG*     2.9    32.3    +      -       -      +
     90a  ILE*     5.5     0.8    -      -       -      +
     99a  MET*     5.3     0.2    -      -       -      +
    111b  PHE*     3.6    18.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 71 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1598    A      3.7    29.8    -      -       +      +
    1608    T      3.6    27.1    -      -       -      +
     70Y  GLY*     1.3    83.2    -      -       -      +
     72Y  ASN*     1.3    64.0    +      -       -      +
     73Y  ARG      3.1     0.2    -      -       -      -
     74Y  ALA*     3.0     6.4    +      -       +      +
     75Y  ILE*     3.0    24.4    +      -       -      +
     71b  PRO*     3.6    19.4    -      -       +      +
     74b  ALA*     4.8     0.7    -      -       +      -
     75b  ILE*     3.6    39.0    -      -       +      +
    107b  TYR*     6.5     0.9    -      -       +      -
    111b  PHE*     4.6     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 72 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68Y  ILE*     3.5    15.9    -      -       +      -
     69Y  THR      3.3    14.1    +      -       -      +
     70Y  GLY      3.0     0.6    -      -       -      -
     71Y  PRO*     1.3    75.2    -      -       -      +
     73Y  ARG*     1.3    64.1    +      -       -      +
     75Y  ILE*     3.3    19.8    +      -       +      +
     76Y  TYR*     3.1    26.4    -      -       +      -
     72b  ASN*     3.1    24.3    -      -       -      +
     75b  ILE*     3.5    11.9    -      -       -      +
    111b  PHE      3.2    25.9    +      -       -      -
    112b  ASN*     4.6    10.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 73 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1598    A      2.9    39.0    +      -       -      +
     60Y  SER*     2.7    45.5    +      -       -      +
     63Y  LEU*     3.5    17.4    -      -       +      +
     64Y  THR*     3.0    31.3    +      -       -      +
     68Y  ILE*     2.8    57.4    +      -       +      +
     69Y  THR*     3.8     8.5    -      -       -      +
     70Y  GLY      2.9    14.1    +      -       -      +
     72Y  ASN*     1.3    76.4    -      -       -      +
     74Y  ALA*     1.3    58.1    +      -       -      +
     76Y  TYR      3.1     3.5    +      -       -      -
     77Y  GLN*     2.8    32.2    +      -       -      +
     89a  ARG      4.6     0.4    +      -       -      -
     90a  ILE*     3.7    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 74 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1917    A      4.1    24.6    -      -       +      +
    1588    T      4.3     5.6    -      -       -      +
    1598    A      3.8    37.8    +      -       +      +
     70Y  GLY      3.7     0.6    +      -       -      -
     71Y  PRO      3.0    12.3    +      -       -      +
     73Y  ARG*     1.3    81.0    -      -       -      +
     75Y  ILE*     1.3    60.9    -      -       -      +
     77Y  GLN*     3.6     8.9    -      -       -      +
     78Y  GLY*     2.9    21.1    +      -       -      -
     71b  PRO*     4.8     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 75 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1917    A      5.9     0.2    -      -       -      -
     71Y  PRO      3.0    15.0    +      -       -      +
     72Y  ASN*     3.4    22.7    -      -       +      +
     73Y  ARG      3.2     0.4    -      -       -      -
     74Y  ALA*     1.3    76.7    -      -       -      +
     76Y  TYR*     1.3    71.8    +      -       +      +
     78Y  GLY*     3.3     1.3    +      -       -      -
     79Y  PHE*     3.2    16.8    +      -       -      +
    107Y  TYR*     3.5    31.1    -      -       +      -
    111Y  PHE*     4.8    11.2    -      -       +      +
    113Y  ALA*     4.2    19.7    -      -       +      -
     71b  PRO*     3.5    27.4    -      -       +      -
     72b  ASN*     3.5    35.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 76 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59Y  VAL*     4.3     5.9    -      -       -      +
     63Y  LEU*     3.6    32.1    -      -       +      -
     68Y  ILE*     4.0    18.9    -      -       +      +
     72Y  ASN*     3.1    26.4    +      -       +      -
     73Y  ARG      3.1     3.7    +      -       -      +
     75Y  ILE*     1.3    78.7    -      -       +      +
     77Y  GLN*     1.3    61.1    +      -       -      +
     79Y  PHE*     3.2     7.5    +      -       -      +
     80Y  GLY*     2.9    25.6    +      -       -      -
    112Y  ASN      5.2     0.2    +      -       -      -
    113Y  ALA*     4.0     8.0    -      -       +      -
    114Y  ASN*     2.9    38.7    +      -       -      +
    117Y  VAL*     3.7    26.4    -      -       +      +
    118Y  LEU*     3.6    31.0    -      -       +      -
    121Y  VAL*     4.4     8.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 77 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1588    T      3.2    32.8    +      -       +      +
    1598    A      3.2    20.3    +      -       -      +
     55Y  VAL*     4.8     0.9    -      -       -      +
     56Y  ASN*     3.1    41.6    +      -       -      +
     59Y  VAL*     3.3    24.1    -      -       -      +
     60Y  SER*     3.4    11.9    -      -       -      +
     63Y  LEU*     4.0     3.9    -      -       +      +
     73Y  ARG      2.8    22.2    +      -       -      +
     74Y  ALA*     3.6     7.9    -      -       -      +
     75Y  ILE      3.3     0.2    -      -       -      -
     76Y  TYR*     1.3    76.8    -      -       -      +
     78Y  GLY*     1.3    55.5    +      -       -      +
     80Y  GLY*     3.2     1.4    +      -       -      -
     81Y  LEU*     2.9    36.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 78 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1917    A      5.6     1.3    -      -       -      -
    1927    T      3.7    30.4    +      -       -      +
    1588    T      5.3     0.2    +      -       -      -
     74Y  ALA      2.9    14.7    +      -       -      -
     75Y  ILE      3.8     3.6    -      -       -      -
     77Y  GLN*     1.3    76.5    -      -       -      +
     79Y  PHE*     1.3    62.1    +      -       -      +
     81Y  LEU*     3.3     5.5    +      -       -      +
     82Y  LYS*     3.0    23.6    +      -       -      +
    107Y  TYR*     3.5    11.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 79 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75Y  ILE      3.2    12.8    +      -       -      +
     76Y  TYR      3.4     7.9    -      -       -      +
     78Y  GLY*     1.3    76.2    -      -       -      +
     80Y  GLY*     1.3    64.4    +      -       -      +
     82Y  LYS*     3.2     6.2    +      -       -      +
     83Y  VAL*     3.1    29.4    +      -       +      +
    100Y  ILE*     5.0     0.9    -      -       +      -
    103Y  LEU*     3.6    32.1    -      -       +      -
    104Y  LYS*     3.8    28.3    -      -       +      -
    107Y  TYR*     3.5    26.3    +      +       +      -
    118Y  LEU*     3.3    50.7    -      -       +      -
    121Y  VAL*     3.8    16.6    -      -       +      -
    122Y  VAL*     3.6    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 80 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55Y  VAL*     4.1     6.7    -      -       -      -
     59Y  VAL*     4.7     1.8    -      -       -      -
     76Y  TYR      2.9    13.0    +      -       -      -
     77Y  GLN      3.7     2.7    -      -       -      -
     79Y  PHE*     1.3    76.4    -      -       -      +
     81Y  LEU*     1.3    62.3    +      -       -      +
     83Y  VAL*     3.1     3.1    +      -       -      -
     84Y  ALA*     3.1    18.9    +      -       -      +
    121Y  VAL*     3.6    13.9    -      -       -      -
    125Y  ILE*     3.2    30.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 81 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1927    T      3.6    23.8    -      -       +      +
    1937    A      3.4    30.9    -      -       -      +
    1578    A      4.9     7.4    -      -       +      -
    1588    T      5.2     2.5    -      -       -      +
     52Y  PHE*     3.7    37.4    -      -       +      +
     55Y  VAL*     4.3     6.5    -      -       +      +
     56Y  ASN*     3.3    30.3    -      -       -      +
     77Y  GLN*     2.9    25.8    +      -       +      +
     78Y  GLY*     3.6     4.5    -      -       -      +
     80Y  GLY*     1.3    75.9    -      -       -      +
     82Y  LYS*     1.3    57.1    +      -       -      +
     84Y  ALA*     3.3     7.3    +      -       -      +
     85Y  ARG*     2.9    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 82 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1927    T      4.0    14.2    +      -       -      +
    1937    A      2.9    31.1    +      -       -      +
    1488    T      5.6     1.3    -      -       -      -
    1498    A      3.8    14.0    +      -       -      -
     78Y  GLY      3.0    13.8    +      -       -      +
     79Y  PHE*     3.4    10.3    -      -       -      +
     81Y  LEU*     1.3    74.9    -      -       -      +
     83Y  VAL*     1.3    64.0    +      -       -      +
     85Y  ARG*     3.2    11.9    +      -       -      +
     86Y  ALA*     3.1    23.8    +      -       +      +
     99Y  MET*     4.7    16.6    -      -       -      -
    103Y  LEU*     3.5    30.7    -      -       +      +
    106Y  TYR*     5.5     4.4    -      -       -      -
    107Y  TYR*     5.2     1.1    -      -       +      -
    106Z  TYR*     2.7    39.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 83 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79Y  PHE*     3.1    35.7    +      -       +      +
     80Y  GLY*     3.1     8.3    +      -       -      +
     82Y  LYS*     1.3    77.4    -      -       -      +
     84Y  ALA*     1.3    62.4    +      -       -      +
     86Y  ALA*     3.4     5.9    +      -       -      +
     87Y  LEU*     3.0    20.9    +      -       +      +
     96Y  LEU*     4.3     4.4    -      -       +      +
     99Y  MET*     6.3     0.7    -      -       -      -
    100Y  ILE*     4.3    18.8    -      -       +      -
    103Y  LEU*     3.6    18.4    -      -       +      -
    122Y  VAL*     4.5     8.3    -      -       +      -
    125Y  ILE*     3.7    27.1    -      -       +      -
    126Y  THR*     4.3    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 84 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51Y  LYS      5.5     0.9    -      -       -      +
     52Y  PHE*     3.6    20.4    -      -       +      -
     55Y  VAL*     4.0    20.9    -      -       +      -
     80Y  GLY      3.1     8.1    +      -       -      +
     81Y  LEU*     3.5     8.5    -      -       -      +
     83Y  VAL*     1.3    80.2    -      -       -      +
     85Y  ARG*     1.3    64.3    +      -       -      +
     87Y  LEU*     3.1    11.4    +      -       +      +
     88Y  ASN*     2.9    27.5    +      -       -      +
    125Y  ILE*     4.5     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 85 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1937    A      3.0    35.0    +      -       -      +
    1947    T      3.1    34.6    +      -       -      +
    1488    T      3.8    34.4    +      -       -      +
    1498    A      3.9    21.3    +      -       -      -
     52Y  PHE*     3.6    10.3    -      -       -      -
     81Y  LEU      2.9    13.3    +      -       -      +
     82Y  LYS*     3.2    16.6    +      -       +      +
     84Y  ALA*     1.3    76.1    -      -       -      +
     86Y  ALA*     1.3    64.0    +      -       -      +
     88Y  ASN*     3.1     5.4    +      -       -      +
     89Y  ARG*     3.0    52.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 86 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1488    T      5.4     3.4    -      -       -      +
     82Y  LYS*     3.1    11.6    +      -       -      +
     83Y  VAL*     3.7     9.6    -      -       -      +
     85Y  ARG*     1.3    77.6    -      -       -      +
     87Y  LEU*     1.3    57.8    +      -       -      +
     89Y  ARG*     4.5     2.9    -      -       -      +
     90Y  ILE*     2.7    51.7    +      -       +      +
     96Y  LEU*     3.9    10.3    -      -       +      -
     99Y  MET*     3.8    32.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 87 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     574  GLU*     5.8     3.8    -      -       -      +
     584  ASN*     6.2     0.2    -      -       -      +
     83Y  VAL*     3.0    14.7    +      -       +      +
     84Y  ALA*     3.1    13.4    +      -       +      +
     86Y  ALA*     1.3    76.3    -      -       -      +
     88Y  ASN*     1.3    65.2    +      -       -      +
     91Y  GLY*     2.7    31.4    +      -       -      +
     92Y  SER*     3.6    33.0    -      -       -      +
     96Y  LEU*     3.8    23.7    -      -       +      +
    125Y  ILE*     4.8    22.2    -      -       +      +
    126Y  THR*     6.1     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 88 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     574  GLU*     5.2     4.3    -      -       -      +
    1947    T      5.9     0.9    -      -       -      +
      7X  SER*     3.8    18.7    +      -       -      +
     48Y  ASN*     4.9     5.4    +      -       -      +
     51Y  LYS*     3.9    30.8    +      -       -      +
     52Y  PHE*     3.3    34.5    -      -       +      -
     84Y  ALA*     2.9    13.4    +      -       -      +
     85Y  ARG*     3.6     8.1    -      -       -      +
     87Y  LEU*     1.3    86.0    -      -       -      +
     89Y  ARG*     1.3    63.8    +      -       +      +
     90Y  ILE      5.0     0.3    -      -       -      -
     91Y  GLY      4.8     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 89 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1947    T      3.8    18.4    +      -       -      -
    1957    A      4.3    14.5    +      -       -      -
    1468    T      4.7     4.2    +      -       -      -
    1478    A      3.6    26.4    +      -       -      +
    1488    T      3.5    36.4    +      -       -      +
     60W  SER*     4.7     2.1    +      -       -      -
     73W  ARG*     4.6     4.0    +      -       -      -
      7X  SER*     3.6    37.1    -      -       -      +
      8X  ARG*     5.5     3.6    -      -       -      +
     85Y  ARG*     3.0    52.8    +      -       -      +
     86Y  ALA*     4.2     2.2    -      -       -      +
     88Y  ASN*     1.3    80.2    -      -       +      +
     90Y  ILE*     1.3    62.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 90 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1478    A      5.4     1.1    -      -       -      +
    1488    T      4.4    11.0    -      -       -      +
     60W  SER*     4.7     2.8    +      -       -      -
     64W  THR*     2.6    37.3    +      -       +      +
     69W  THR*     4.4    18.2    -      -       +      -
     70W  GLY      5.5     0.4    -      -       -      +
     73W  ARG*     3.7    19.1    +      -       -      +
     86Y  ALA*     2.7    28.0    +      -       +      +
     88Y  ASN      5.0     0.2    -      -       -      -
     89Y  ARG*     1.3    80.4    -      -       +      +
     91Y  GLY*     1.3    68.3    +      -       -      +
     95Y  ALA*     3.5    25.4    -      -       +      +
     96Y  LEU*     4.2     4.3    -      -       -      +
     99Y  MET*     3.7    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 91 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64W  THR*     3.8     1.4    -      -       -      +
     86Y  ALA      3.6     0.4    +      -       -      -
     87Y  LEU*     2.7    31.0    +      -       -      -
     88Y  ASN      4.6     0.4    -      -       -      -
     90Y  ILE*     1.3    89.2    -      -       -      +
     92Y  SER*     1.3    68.6    +      -       -      +
     96Y  LEU*     3.6    10.4    -      -       -      +
----------------------------------------------------------
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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