Contacts of the helix formed by residues 113 - 135 (chain A) in PDB entry 3P1Q


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 113 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  GLY*     1.3    81.8    -      -       -      +
    114A  ALA*     1.3    66.3    +      -       -      +
    115A  GLU*     3.2    13.7    -      -       +      +
    116A  SER*     3.0    12.8    +      -       -      +
    117A  ARG*     2.9    21.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 114 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  GLY      3.8     2.2    +      -       -      -
    113A  ASP*     1.3    73.5    -      -       -      +
    115A  GLU*     1.3    67.0    +      -       -      +
    117A  ARG*     4.4     2.2    -      -       -      -
    118A  VAL*     2.8    40.0    +      -       +      +
    157A  ILE*     4.0    16.4    -      -       +      -
    161A  GLU*     3.4    36.1    -      -       +      +
    162A  MET*     4.0     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 115 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ASN*     5.5     1.3    -      -       -      +
     41A  ARG*     4.1    16.6    +      -       -      +
    113A  ASP*     3.2     9.9    -      -       +      +
    114A  ALA*     1.3    82.4    +      -       -      +
    116A  SER*     1.3    58.6    +      -       -      +
    119A  PHE*     3.1    25.5    +      -       -      +
    161A  GLU      4.7     4.5    -      -       -      +
    162A  MET*     3.7    25.7    -      -       +      +
    166A  HIS*     3.9    25.3    +      -       +      +
    168A  ILE*     3.6    12.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 116 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  ARG*     3.6    36.0    -      -       -      +
    111A  ALA*     3.4    20.9    -      -       -      +
    112A  GLY      4.0     0.2    +      -       -      -
    113A  ASP*     3.0    21.3    +      -       -      +
    115A  GLU*     1.3    80.3    -      -       -      +
    117A  ARG*     1.3    67.2    +      -       -      +
    119A  PHE*     3.4     1.6    +      -       -      +
    120A  TYR*     3.0    34.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 117 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  ILE*     2.8    48.3    +      -       +      +
    109A  LYS*     4.7     4.4    +      -       -      +
    111A  ALA*     2.9    29.0    +      -       -      +
    112A  GLY*     5.2     4.3    -      -       -      -
    113A  ASP      2.9    18.6    +      -       -      +
    114A  ALA*     3.9     4.5    -      -       -      +
    116A  SER*     1.3    77.5    +      -       -      +
    118A  VAL*     1.3    59.5    +      -       -      +
    120A  TYR*     3.3     2.7    +      -       -      +
    121A  LEU*     2.9    35.1    +      -       +      +
    153A  GLU*     3.7    26.9    +      -       -      -
    157A  ILE*     3.6    24.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 118 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  ALA*     2.8    25.4    +      -       +      +
    117A  ARG*     1.3    69.6    -      -       -      +
    119A  PHE*     1.3    61.1    +      -       -      +
    121A  LEU*     3.9     1.6    -      -       -      +
    122A  LYS*     2.8    28.8    +      -       -      +
    154A  ALA*     3.8    13.4    -      -       +      +
    157A  ILE*     3.5    34.5    -      -       +      -
    158A  SER*     3.8    13.7    -      -       -      +
    162A  MET*     3.8    13.9    -      -       +      -
    168A  ILE*     3.7    19.5    -      -       +      +
    172A  LEU*     3.8    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 119 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ASN*     5.7     1.8    -      -       -      -
     41A  ARG*     3.3    45.3    -      -       +      -
     42A  ASN*     3.3    20.2    -      -       -      -
     44A  LEU*     5.8     0.2    -      -       +      -
     45A  SER*     3.2    23.3    -      -       -      -
    115A  GLU      3.1    20.3    +      -       -      +
    116A  SER*     3.5     6.3    -      -       -      +
    117A  ARG      3.3     0.2    -      -       -      -
    118A  VAL*     1.3    80.7    -      -       -      +
    120A  TYR*     1.3    64.9    +      +       -      +
    122A  LYS*     3.3     5.4    +      -       -      +
    123A  MET*     2.9    55.0    +      -       -      +
    168A  ILE*     4.0    27.5    -      -       +      +
    249A  FSC      3.6    31.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 120 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  LEU*     3.5    23.9    +      -       -      +
     41A  ARG*     3.2    38.5    -      -       +      +
     44A  LEU*     4.5     9.0    -      -       +      -
    103A  LEU*     3.7    23.7    -      -       +      +
    107A  LEU*     3.7    43.0    -      -       +      +
    108A  ILE*     3.6    19.8    -      -       +      +
    111A  ALA*     3.6    21.3    -      -       +      -
    116A  SER*     3.0    28.0    +      -       -      +
    117A  ARG*     4.0     2.5    -      -       -      +
    119A  PHE*     1.3    85.0    -      +       -      +
    121A  LEU*     1.3    58.9    +      -       -      +
    123A  MET*     3.3     7.7    +      -       -      +
    124A  LYS*     2.8    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 121 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  ILE*     4.1    28.3    -      -       +      -
    117A  ARG*     2.9    28.9    +      -       +      +
    120A  TYR*     1.3    75.6    -      -       -      +
    122A  LYS*     1.3    60.3    +      -       -      +
    124A  LYS*     3.2    15.3    +      -       +      +
    125A  GLY*     2.9    24.6    +      -       -      -
    150A  ALA*     3.6    20.3    -      -       -      +
    153A  GLU*     3.6    42.4    -      -       +      +
    154A  ALA*     3.6    22.4    -      -       +      +
    157A  ILE*     3.7    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 122 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LYS*     4.8     1.4    -      -       -      +
    118A  VAL*     2.8    18.1    +      -       +      +
    119A  PHE*     3.4     5.4    -      -       -      +
    121A  LEU*     1.3    74.0    -      -       -      +
    123A  MET*     1.4    61.5    +      -       -      +
    125A  GLY*     3.1     3.1    +      -       -      -
    126A  ASP*     2.7    50.6    +      -       -      +
    151A  TYR*     3.7     4.1    -      -       +      -
    154A  ALA*     4.1     1.4    -      -       -      +
    168A  ILE*     4.6     3.6    -      -       +      +
    171A  GLY      3.4    24.7    -      -       -      -
    172A  LEU*     3.6    41.7    -      -       +      +
    175A  ASN*     3.4    10.1    -      -       -      +
    249A  FSC      2.7    41.3    +      -       +      +
    374P  VAL*     2.8    24.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  LEU*     4.2    26.0    -      -       +      +
     45A  SER*     4.0    21.1    -      -       -      -
     48A  TYR*     5.3     2.0    -      -       +      -
     99A  VAL*     3.8    25.1    -      -       +      -
    103A  LEU*     3.8    17.3    -      -       +      -
    119A  PHE*     2.9    35.3    +      -       -      +
    120A  TYR*     3.3     9.2    +      -       -      +
    122A  LYS*     1.4    75.8    -      -       -      +
    124A  LYS*     1.3    63.0    +      -       -      +
    126A  ASP*     3.1    10.0    +      -       -      +
    127A  TYR*     2.9    42.7    +      -       +      +
    249A  FSC      3.4    21.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  LEU*     3.7    11.1    -      -       +      +
    103A  LEU*     3.5    16.1    -      -       +      +
    104A  ASP*     5.0     9.9    +      -       -      +
    108A  ILE*     3.9    21.4    -      -       +      +
    120A  TYR      2.8    13.7    +      -       -      +
    121A  LEU*     3.2    15.9    +      -       +      +
    123A  MET*     1.3    76.3    -      -       -      +
    125A  GLY*     1.4    61.4    +      -       -      +
    127A  TYR      3.4     0.2    +      -       -      -
    128A  TYR*     3.0    57.6    +      -       +      -
    146A  SER*     5.3     2.0    -      -       -      -
    150A  ALA*     3.7    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121A  LEU      2.9    13.2    +      -       -      -
    122A  LYS      3.1     3.8    +      -       -      -
    124A  LYS*     1.4    74.8    -      -       -      +
    126A  ASP*     1.3    57.1    +      -       -      +
    129A  ARG*     2.8    29.5    +      -       -      +
    147A  ALA*     3.6    19.0    -      -       -      +
    150A  ALA*     3.6     4.3    -      -       -      +
    151A  TYR*     3.3    26.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LYS*     4.2     6.6    -      -       -      +
    122A  LYS*     2.7    45.4    +      -       -      +
    123A  MET*     3.1    10.5    +      -       -      +
    125A  GLY*     1.3    73.6    -      -       -      +
    127A  TYR*     1.3    63.3    +      -       +      +
    129A  ARG*     3.1     9.1    +      -       -      +
    130A  TYR*     2.8    50.8    +      -       +      +
    151A  TYR*     2.5    31.9    +      -       -      -
    175A  ASN*     2.8    22.9    +      -       -      +
    249A  FSC      4.8     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  SER*     4.4     1.2    +      -       -      -
     48A  TYR*     3.2    35.0    +      -       +      +
     49A  LYS*     3.2    15.1    +      -       +      +
     52A  VAL*     3.7    24.7    -      -       +      -
     95A  VAL*     4.9     1.1    -      -       +      -
     96A  CYS*     3.7    27.7    -      -       +      +
     99A  VAL*     3.6    31.9    -      -       +      -
    100A  LEU*     4.0    24.5    -      -       +      -
    123A  MET*     2.9    44.5    +      -       +      +
    126A  ASP*     1.3    77.6    -      -       +      +
    128A  TYR*     1.3    65.5    +      -       -      +
    130A  TYR*     3.4    19.1    +      +       -      -
    131A  LEU*     3.1    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  LEU*     3.7    36.1    -      -       +      +
    124A  LYS*     3.0    51.0    +      -       +      +
    127A  TYR*     1.3    75.3    -      -       -      +
    129A  ARG*     1.3    58.4    +      -       -      +
    131A  LEU*     3.2    10.9    +      -       +      -
    132A  ALA*     2.8    25.5    +      -       -      +
    143A  ILE*     3.3    29.9    -      -       +      +
    146A  SER*     3.6    36.5    +      -       -      -
    147A  ALA*     3.6    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  ARG*     4.0     1.4    -      -       -      +
    125A  GLY      2.8    14.0    +      -       -      +
    126A  ASP*     3.2    14.8    +      -       -      +
    128A  TYR*     1.3    76.7    -      -       -      +
    130A  TYR*     1.3    74.0    +      -       +      +
    132A  ALA*     3.0     9.3    +      -       -      +
    133A  GLU*     2.9    30.1    +      -       -      +
    147A  ALA*     3.8     6.7    -      -       +      +
    151A  TYR*     2.9    20.5    +      -       +      +
    175A  ASN*     3.3    33.0    +      -       -      +
    178A  VAL*     3.8     8.9    -      -       -      +
    179A  PHE*     3.9    31.2    -      -       +      +
    182A  GLU*     4.8     0.4    +      -       -      -
    183A  ILE*     3.9    18.3    -      -       +      +
    371P  ARG*     3.6    11.3    -      -       -      +
    373P  SEP      2.7    46.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LYS*     2.9    21.4    +      -       +      -
     52A  VAL*     3.7    24.7    -      -       +      -
     56A  ARG*     3.2    49.1    -      -       -      -
     92A  LEU*     4.2     7.0    -      -       +      +
     96A  CYS*     3.8    16.4    -      -       -      -
    126A  ASP*     2.8    34.8    +      -       +      +
    127A  TYR*     3.6    27.1    -      +       -      -
    128A  TYR      3.3     0.2    -      -       -      -
    129A  ARG*     1.3    90.8    +      -       -      +
    131A  LEU*     1.3    60.9    +      -       -      +
    133A  GLU*     3.3    22.7    +      -       -      +
    134A  VAL*     3.7    10.7    +      -       -      +
    373P  SEP      2.6    24.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  LEU*     5.0     0.7    -      -       +      -
     93A  GLN*     3.7    37.4    +      -       +      +
     96A  CYS*     3.6    20.2    -      -       +      -
     97A  ASP*     3.8    18.4    -      -       -      +
    100A  LEU*     3.8    22.9    -      -       +      -
    127A  TYR      3.1    15.2    +      -       -      +
    128A  TYR*     3.2    20.4    +      -       +      +
    130A  TYR*     1.3    75.0    -      -       -      +
    132A  ALA*     1.3    63.9    +      -       -      +
    134A  VAL*     3.3     9.1    +      -       -      +
    135A  ALA*     3.0    22.9    +      -       -      +
    143A  ILE*     3.7    19.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  TYR      2.8    15.9    +      -       -      +
    129A  ARG*     3.0    11.8    +      -       -      +
    131A  LEU*     1.3    73.9    -      -       -      +
    133A  GLU*     1.3    64.3    +      -       -      +
    134A  VAL      3.2     0.5    +      -       -      -
    135A  ALA*     3.3     9.2    +      -       -      -
    140A  LYS*     3.2    23.4    +      -       -      +
    143A  ILE*     3.5    11.2    -      -       +      +
    144A  ILE*     3.9    17.9    -      -       +      -
    183A  ILE*     3.7    31.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  ARG*     2.8    51.9    +      -       -      +
     59A  TRP*     3.7    18.8    -      -       +      -
     60A  ARG*     4.9     4.0    +      -       -      -
    129A  ARG*     2.9    24.9    +      -       -      +
    130A  TYR*     3.5    14.3    -      -       -      +
    131A  LEU      3.2     0.4    -      -       -      -
    132A  ALA*     1.3    77.7    -      -       -      +
    134A  VAL*     1.3    62.2    +      -       +      +
    135A  ALA      5.0     0.7    -      -       -      +
    140A  LYS*     5.5     0.5    +      -       -      -
    182A  GLU*     3.7    16.5    -      -       -      +
    183A  ILE*     3.9    17.5    -      -       +      -
    370P  ARG*     5.0     3.2    +      -       -      -
    371P  ARG*     3.8     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  TRP*     3.4    45.3    -      -       +      +
     89A  GLU*     3.9    28.8    -      -       +      +
     92A  LEU*     4.2    15.9    -      -       +      -
     93A  GLN*     3.9    31.3    +      -       +      +
    130A  TYR      3.7    11.6    +      -       -      +
    131A  LEU*     3.4    12.6    -      -       -      +
    133A  GLU*     1.3    82.0    -      -       +      +
    135A  ALA*     1.3    63.7    +      -       -      +
    136A  THR*     3.6    12.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  GLN*     5.6     3.1    -      -       -      +
    131A  LEU      3.0    16.9    +      -       -      +
    132A  ALA*     3.3    10.8    +      -       -      +
    133A  GLU      5.0     0.9    -      -       -      +
    134A  VAL*     1.3    79.3    -      -       -      +
    136A  THR*     1.3    63.3    +      -       -      +
    137A  GLY      3.8     0.4    -      -       -      +
    140A  LYS*     3.1    41.7    +      -       +      +
    143A  ILE*     3.9    24.0    -      -       +      -
----------------------------------------------------------
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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