Contacts of the helix formed by residues 95 - 116 (chain N) in PDB entry 1OCR


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 95 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10N  THR*     3.5    38.6    -      -       -      +
     15N  ILE*     4.1     2.0    -      -       +      +
     91N  ASP*     3.7    18.6    -      -       +      +
     92N  MET*     3.4    14.8    -      -       +      +
     93N  ALA      3.5     5.6    -      -       -      +
     94N  PHE*     1.3    87.5    -      -       -      +
     96N  ARG*     1.3    60.0    +      -       -      +
     98N  ASN*     3.5    10.2    -      -       +      +
     99N  ASN*     3.5    13.9    +      -       -      +
      9P  HIS      4.4     8.1    -      -       -      +
     10P  MET*     5.2     1.3    -      -       -      -
     11P  VAL*     3.3    37.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 96 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10N  THR*     4.4     7.4    -      -       +      -
     94N  PHE      3.3     1.0    -      -       -      -
     95N  PRO*     1.3    77.6    -      -       -      +
     97N  MET*     1.3    67.5    +      -       -      +
     99N  ASN*     3.0    12.1    +      -       -      +
    100N  MET      3.5     0.3    +      -       -      -
      9P  HIS*     5.7     0.2    -      -       -      -
     11P  VAL*     3.8    27.0    -      -       +      +
     12P  ASN      5.1     0.6    +      -       -      -
     14P  SER*     3.4    32.0    -      -       -      -
     16P  TRP*     4.9     1.1    -      -       -      -
     17P  PRO*     3.3    37.9    -      -       +      +
     57P  TRP*     3.4    33.8    -      -       +      +
     60P  ASP*     4.0    18.0    +      -       -      +
     61P  VAL*     3.6    17.1    -      -       -      +
     64P  GLU*     2.8    43.2    +      -       -      -
     20W  VAL*     4.6     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 97 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94N  PHE*     3.3    41.1    +      -       +      +
     96N  ARG*     1.3    78.6    -      -       -      +
     98N  ASN*     1.3    63.0    +      -       -      +
    100N  MET*     2.9    18.1    +      -       +      +
    101N  SER*     3.2    10.6    +      -       -      -
    159N  LEU*     3.5    56.5    -      -       +      +
    162N  ILE*     4.5    13.5    -      -       +      -
    163N  ASN*     4.2     6.5    -      -       -      +
     57P  TRP*     3.8    22.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 98 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12N  HIS*     4.6     3.2    -      -       -      +
     15N  ILE*     3.7    22.7    -      -       +      +
     19N  TYR*     4.6     1.4    +      -       -      -
     80N  ASN*     2.8    40.6    +      -       -      +
     91N  ASP*     5.2     1.0    +      -       -      -
     92N  MET*     3.7    14.0    -      -       +      +
     94N  PHE      3.0    10.8    +      -       -      +
     95N  PRO*     3.5    11.2    -      -       +      +
     96N  ARG      3.1     0.2    -      -       -      -
     97N  MET*     1.3    77.3    -      -       -      +
     99N  ASN*     1.3    62.0    +      -       -      +
    101N  SER*     3.2    25.0    +      -       -      -
    102N  PHE      3.4     4.2    +      -       -      -
    160N  GLY*     5.5     3.1    -      -       -      -
    163N  ASN*     3.5    25.0    +      -       -      +
    164N  PHE*     5.6     2.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 99 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6N  TRP      5.4     0.2    -      -       -      +
      7N  LEU      3.4    23.8    +      -       -      -
      8N  PHE*     4.0     3.4    -      -       -      +
      9N  SER*     3.3    36.7    +      -       -      +
     15N  ILE*     3.9    20.0    -      -       +      +
     18N  LEU*     4.9     4.3    -      -       -      +
     95N  PRO      3.5     3.6    +      -       -      +
     96N  ARG      3.0    12.6    +      -       -      +
     98N  ASN*     1.3    80.4    -      -       -      +
    100N  MET*     1.3    54.6    +      -       -      +
    102N  PHE*     3.2     5.2    +      -       -      +
    103N  TRP*     3.0    49.9    +      -       -      -
     14P  SER      4.4     0.4    +      -       -      -
     17P  PRO*     3.7    18.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 100 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96N  ARG      3.5     2.2    +      -       -      -
     97N  MET*     2.9    13.1    +      -       +      +
     99N  ASN*     1.3    75.0    -      -       -      +
    101N  SER*     1.3    67.8    +      -       -      +
    103N  TRP*     4.3     0.9    -      -       -      +
    104N  LEU*     3.0    40.7    +      -       +      +
    155N  VAL*     5.7     1.1    -      -       +      -
    159N  LEU*     3.2    30.7    -      -       +      -
     17P  PRO*     3.6    31.5    -      -       +      +
     20P  GLY*     4.6    14.6    -      -       -      -
     21P  ALA*     4.6     2.7    -      -       +      +
     57P  TRP*     3.8    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 101 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19N  TYR*     3.2    16.3    +      -       -      -
     97N  MET      3.2     9.7    +      -       -      -
     98N  ASN*     3.2    17.1    +      -       -      -
    100N  MET*     1.3    75.9    -      -       -      +
    102N  PHE*     1.3    63.0    +      -       -      +
    104N  LEU*     3.8     3.0    +      -       -      +
    105N  LEU*     4.1     3.3    +      -       -      +
    156N  SER*     2.5    52.9    +      -       -      +
    159N  LEU*     3.7    10.6    -      -       -      +
    160N  GLY*     3.5    17.6    +      -       -      -
    163N  ASN*     5.7     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 102 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15N  ILE*     4.2    10.3    -      -       +      -
     18N  LEU*     3.7    49.1    -      -       +      -
     19N  TYR*     3.3    42.5    +      +       +      -
     22N  PHE*     3.8    22.9    -      +       +      -
     98N  ASN      3.4     1.6    +      -       -      -
     99N  ASN*     3.2     8.8    +      -       -      +
    100N  MET      3.1     0.2    -      -       -      -
    101N  SER*     1.3    80.4    -      -       -      +
    103N  TRP*     1.3   103.5    +      +       -      +
    104N  LEU      3.1     0.7    -      -       -      -
    105N  LEU*     2.9    29.1    +      -       +      +
    106N  PRO*     3.3    15.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 103 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6N  TRP      3.7    10.4    +      -       -      -
      7N  LEU*     3.5    47.3    +      -       +      +
     18N  LEU*     4.7     5.1    -      -       +      +
     99N  ASN*     3.0    48.3    +      -       -      +
    100N  MET      3.2     1.7    +      -       -      +
    102N  PHE*     1.3   104.2    -      +       -      +
    104N  LEU*     1.3    57.6    +      -       -      +
    105N  LEU      3.2     0.4    -      -       -      -
    106N  PRO*     3.7    22.7    -      -       +      +
    107N  PRO*     2.9    22.1    -      -       +      +
     17P  PRO      4.5     3.8    -      -       -      +
     18P  LEU*     3.9    28.9    -      -       +      -
     21P  ALA*     3.1    25.6    -      -       +      +
     22P  LEU*     5.6     1.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 104 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100N  MET*     3.0    39.6    +      -       +      +
    102N  PHE      3.0     0.6    +      -       -      -
    103N  TRP*     1.3    77.1    -      -       -      +
    105N  LEU*     1.3    61.3    +      -       -      +
    107N  PRO*     3.3     5.2    -      -       -      +
    108N  SER*     3.1    28.4    +      -       -      -
    152N  LEU*     4.3    20.1    -      -       +      +
    155N  VAL*     3.9    18.4    -      -       +      -
    156N  SER*     3.7    39.0    -      -       -      +
    159N  LEU*     4.5     4.5    -      -       +      -
     20P  GLY      5.0     0.9    -      -       -      +
     21P  ALA*     4.1    12.6    -      -       +      +
     24P  ALA*     3.9    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 105 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19N  TYR*     3.4    37.0    -      -       +      -
     22N  PHE*     3.8    24.4    -      -       +      -
     67N  PHE      5.4     2.5    -      -       -      +
     68N  PHE*     4.2    12.1    -      -       +      -
     72N  PRO*     4.0    18.4    -      -       +      -
    101N  SER      4.3     1.6    -      -       -      +
    102N  PHE*     2.9    16.0    +      -       +      +
    104N  LEU*     1.3    80.4    -      -       -      +
    106N  PRO*     1.3    67.7    -      -       +      +
    108N  SER*     3.3     2.6    +      -       -      -
    109N  PHE*     2.9    24.1    +      -       -      +
    153N  ALA*     4.6    15.0    -      -       +      +
    156N  SER*     3.6    26.0    -      -       -      +
    157N  SER*     6.0     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 106 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22N  PHE*     4.0    21.8    -      -       +      -
    102N  PHE*     3.3    21.3    -      -       +      +
    103N  TRP*     3.7    29.4    -      -       +      +
    105N  LEU*     1.3    89.6    -      -       +      +
    107N  PRO*     1.3    71.8    -      -       +      +
    109N  PHE*     3.1     4.0    +      -       +      +
    110N  LEU*     3.0    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 107 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103N  TRP*     2.9    28.7    -      -       +      +
    104N  LEU*     3.3     9.6    -      -       -      +
    106N  PRO*     1.3    88.3    -      -       +      +
    108N  SER*     1.3    62.1    +      -       -      +
    110N  LEU*     3.0    20.1    +      -       +      +
    111N  LEU*     3.0    16.7    +      -       -      +
    152N  LEU*     4.1    12.6    -      -       +      -
     21P  ALA      4.1    16.6    -      -       -      +
     22P  LEU*     4.6     9.9    -      -       +      -
     25P  LEU*     3.9    30.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 108 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68N  PHE*     3.4    14.7    -      -       -      -
    104N  LEU      3.1    16.7    +      -       -      -
    105N  LEU*     3.6     7.0    -      -       -      -
    106N  PRO      3.2     0.2    -      -       -      -
    107N  PRO*     1.3    80.7    -      -       -      +
    109N  PHE*     1.3    62.6    +      -       -      +
    111N  LEU*     3.4     1.9    +      -       -      +
    112N  LEU      3.2     8.7    +      -       -      -
    149N  SER*     2.6    55.4    +      -       -      +
    152N  LEU*     3.7    17.2    -      -       -      +
    153N  ALA*     3.7     7.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 109 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22N  PHE*     3.6    25.6    -      +       +      -
     25N  TRP*     3.6    31.0    -      +       -      -
     26N  ALA*     3.8    15.7    -      -       +      -
     29N  VAL*     4.1    25.6    -      -       +      -
     64N  VAL*     4.1    27.4    -      -       +      -
     68N  PHE*     3.9    21.9    -      +       +      -
    105N  LEU      2.9    16.4    +      -       -      +
    106N  PRO*     3.5     5.4    -      -       +      +
    108N  SER*     1.3    73.6    -      -       -      +
    110N  LEU*     1.3    55.3    +      -       -      +
    112N  LEU*     3.0     7.0    +      -       +      +
    113N  LEU*     2.8    56.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 110 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106N  PRO      3.0    11.7    +      -       -      +
    107N  PRO*     3.2     9.6    -      -       +      +
    109N  PHE*     1.3    75.5    -      -       -      +
    111N  LEU*     1.3    54.8    +      -       +      +
    113N  LEU*     2.9    15.8    +      -       +      +
    114N  ALA*     2.7    37.1    +      -       +      +
     25P  LEU*     3.7    35.9    -      -       +      -
     43W  THR*     6.0     0.4    -      -       +      -
     46W  SER*     5.5     0.7    -      -       -      +
     47W  LEU*     3.9    29.8    -      -       +      -
     50W  LEU*     5.5    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 111 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107N  PRO      3.0    13.7    +      -       -      +
    108N  SER      3.7     5.6    -      -       -      +
    110N  LEU*     1.3    78.1    -      -       +      +
    112N  LEU*     1.3    63.0    +      -       -      +
    114N  ALA*     3.4     8.1    +      -       +      +
    115N  SER*     3.1    23.0    +      -       -      -
    145N  LEU*     3.7    37.5    -      -       +      +
    148N  PHE*     4.0    22.0    -      -       +      -
    149N  SER*     4.0     8.1    -      -       -      +
    152N  LEU*     4.1    16.8    -      -       +      -
     25P  LEU*     3.7    21.3    -      -       +      -
     28P  THR*     3.6    20.6    -      -       -      +
     29P  SER*     4.3    15.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 112 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59N  THR*     6.2     0.7    -      -       +      -
     60N  ALA*     4.7    11.9    -      -       +      +
     63N  PHE*     3.7    42.0    -      -       +      -
     64N  VAL*     4.1    18.8    -      -       +      -
     68N  PHE*     3.8    17.3    -      -       +      -
    108N  SER      3.2     3.9    +      -       -      +
    109N  PHE*     3.0    13.6    +      -       +      +
    111N  LEU*     1.3    77.9    -      -       -      +
    113N  LEU*     1.3    65.1    +      -       +      +
    115N  SER*     2.8    32.3    +      -       -      +
    116N  SER*     3.6     5.2    +      -       -      -
    145N  LEU      5.1     0.4    -      -       -      -
    146N  THR*     4.0    16.4    -      -       +      +
    149N  SER*     3.8    18.8    -      -       -      +
    150N  LEU*     6.4     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 113 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25N  TRP*     4.9    15.5    -      -       +      -
     29N  VAL*     4.8    13.2    -      -       +      -
    109N  PHE*     2.8    47.4    +      -       +      +
    110N  LEU*     3.5    13.9    -      -       +      +
    112N  LEU*     1.3    76.9    -      -       +      +
    114N  ALA*     1.3    61.6    -      -       -      +
    116N  SER*     2.9    23.3    +      -       -      +
    117N  MET*     3.5    18.5    -      -       +      +
     35Y  ALA*     5.6     7.4    -      -       +      -
     39Y  ILE*     4.0    24.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 114 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110N  LEU*     2.7    22.4    +      -       +      +
    111N  LEU*     3.6    12.6    -      -       +      +
    113N  LEU*     1.3    73.4    -      -       -      +
    115N  SER*     1.3    61.9    +      -       -      +
    117N  MET*     3.0    15.9    +      -       -      -
    118N  VAL*     3.1    18.0    +      -       -      +
    145N  LEU*     4.0    14.8    -      -       +      -
     50W  LEU*     3.4    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 115 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111N  LEU      3.1     9.3    +      -       -      -
    112N  LEU*     2.8    21.9    +      -       -      +
    114N  ALA*     1.3    76.1    -      -       -      +
    116N  SER*     1.3    59.2    +      -       -      +
    117N  MET      3.2     1.0    +      -       -      -
    118N  VAL      3.5     1.9    -      -       -      +
    121N  GLY*     3.1     8.3    -      -       -      -
    122N  ALA*     4.9     4.5    +      -       -      +
    142N  SER*     2.7    51.5    +      -       -      +
    145N  LEU*     3.5    19.2    -      -       -      +
    146N  THR*     3.2    17.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 116 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56N  VAL*     4.0    21.9    -      -       -      +
     60N  ALA*     5.7     7.2    -      -       -      -
    112N  LEU      4.4     4.0    -      -       -      -
    113N  LEU*     2.9    19.5    +      -       -      +
    114N  ALA      3.2     0.2    -      -       -      -
    115N  SER*     1.3    80.8    +      -       -      +
    117N  MET*     1.3    57.5    +      -       -      +
    118N  VAL      4.3     0.9    -      -       -      -
    121N  GLY*     3.9     9.9    -      -       -      -
    122N  ALA      5.0     0.7    -      -       -      +
     39Y  ILE*     3.6    29.6    -      -       -      +
     43Y  GLN*     3.1    27.5    +      -       -      +
----------------------------------------------------------
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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