Contacts of the helix formed by residues 114 - 139 (chain B) in PDB entry 3G4C


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 114 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112B  THR      4.9     0.2    -      -       -      +
    113B  ILE*     1.3    92.3    -      -       +      +
    115B  PRO*     1.3    68.9    -      -       +      +
    116B  GLU*     4.2    15.7    -      -       +      +
    117B  ARG*     2.9    38.6    +      -       +      +
    118B  VAL*     3.3     9.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 115 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103B  PRO*     3.7    35.5    -      -       +      +
    106B  LEU*     4.1    28.7    -      -       +      +
    111B  THR*     5.6     5.6    -      -       +      +
    113B  ILE      3.6     2.9    -      -       -      +
    114B  PRO*     1.3    86.3    -      -       +      +
    116B  GLU*     1.3    66.1    +      -       -      +
    118B  VAL*     3.6     4.2    +      -       +      +
    119B  THR*     3.2    28.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 116 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103B  PRO*     3.4    28.0    -      -       +      +
    114B  PRO*     3.0    13.7    +      -       +      +
    115B  PRO*     1.3    89.9    -      -       -      +
    117B  ARG*     1.3    59.5    +      -       -      +
    119B  THR*     3.6     9.5    +      -       -      +
    120B  GLU*     3.0    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 117 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113B  ILE*     4.3    13.2    -      -       +      -
    114B  PRO*     2.9    29.7    +      -       +      +
    116B  GLU*     1.3    78.3    -      -       -      +
    118B  VAL*     1.3    55.7    +      -       -      +
    120B  GLU*     3.2    17.0    +      -       +      +
    121B  LYS*     2.7    66.9    +      -       -      +
    124B  GLU*     6.0     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 118 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101B  PRO*     6.3     0.9    -      -       +      -
    106B  LEU*     3.4    33.9    -      -       +      -
    111B  THR*     4.3     4.3    -      -       +      -
    113B  ILE*     3.8    26.0    -      -       +      +
    114B  PRO      3.3     6.4    +      -       -      +
    115B  PRO*     3.7     3.6    -      -       +      +
    117B  ARG*     1.3    77.5    -      -       -      +
    119B  THR*     1.3    63.7    +      -       -      +
    121B  LYS*     3.4     2.4    +      -       -      +
    122B  ILE*     3.0    42.1    +      -       +      +
    136C  LEU*     4.1    15.0    -      -       +      +
    141C  VAL*     3.5    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 119 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100B  ILE*     3.8    19.2    -      -       +      +
    101B  PRO*     2.6    26.4    +      -       -      +
    102B  SER      3.9     8.8    +      -       -      -
    103B  PRO*     3.9     8.4    -      -       +      +
    106B  LEU*     6.0     0.3    -      -       -      +
    115B  PRO      3.2    15.7    +      -       -      -
    116B  GLU*     3.7     8.7    -      -       -      +
    118B  VAL*     1.3    80.3    -      -       -      +
    120B  GLU*     1.3    58.0    +      -       -      +
    122B  ILE*     3.5    10.3    +      -       -      +
    123B  SER*     3.2    27.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 120 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116B  GLU      3.0    15.9    +      -       -      +
    117B  ARG*     3.2    24.7    +      -       +      +
    119B  THR*     1.3    75.2    -      -       -      +
    121B  LYS*     1.3    60.7    +      -       -      +
    122B  ILE      3.2     0.2    -      -       -      -
    123B  SER*     3.5     7.2    +      -       -      -
    124B  GLU*     2.8    46.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 121 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113B  ILE*     4.5    16.6    -      -       +      -
    117B  ARG*     2.7    42.2    +      -       -      +
    118B  VAL      3.8     4.5    -      -       -      +
    120B  GLU*     1.3    74.5    -      -       +      +
    122B  ILE*     1.3    60.9    +      -       -      +
    124B  GLU*     3.7    17.1    +      -       -      +
    125B  ILE*     3.3    16.3    +      -       -      +
    132C  THR*     3.8    21.7    -      -       +      +
    135C  GLU*     3.6    33.4    +      -       +      +
    136C  LEU*     4.4    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 122 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100B  ILE*     4.3     8.3    -      -       +      -
    101B  PRO*     4.1    31.6    -      -       +      -
    118B  VAL*     3.0    39.8    +      -       +      +
    119B  THR*     3.8     7.0    -      -       -      +
    120B  GLU      3.2     0.2    -      -       -      -
    121B  LYS*     1.3    73.8    -      -       -      +
    123B  SER*     1.3    60.4    +      -       -      +
    125B  ILE*     3.3     4.7    +      -       -      +
    126B  VAL*     3.0    32.1    +      -       -      +
    153B  ASN*     3.8    25.1    -      -       -      +
    136C  LEU*     4.1    12.8    -      -       +      -
    145C  VAL*     4.7    10.8    -      -       +      +
    148C  ILE*     4.7     6.1    -      -       +      -
    149C  VAL*     3.8    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 123 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100B  ILE*     3.7    29.7    -      -       -      +
    119B  THR*     3.2    16.7    +      -       -      +
    120B  GLU*     3.6     8.3    -      -       -      -
    122B  ILE*     1.3    78.0    -      -       -      +
    124B  GLU*     1.3    62.2    +      -       -      +
    126B  VAL*     3.6     1.3    -      -       -      +
    127B  ASP*     3.0    36.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 124 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117B  ARG*     6.0     0.5    -      -       -      -
    120B  GLU*     2.8    39.2    +      -       +      +
    121B  LYS*     3.7    19.9    +      -       -      +
    122B  ILE      3.2     0.2    -      -       -      -
    123B  SER*     1.3    75.0    -      -       -      +
    125B  ILE*     1.3    63.2    +      -       -      +
    127B  ASP*     3.2     5.1    +      -       -      +
    128B  LYS*     3.0    54.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 125 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  LYS      3.3     6.1    +      -       -      +
    122B  ILE      3.3     6.7    +      -       -      +
    124B  GLU*     1.3    78.8    -      -       +      +
    126B  VAL*     1.3    67.2    +      -       +      +
    128B  LYS*     3.3    14.6    +      -       +      +
    129B  ALA*     2.8    30.5    +      -       +      +
    151B  PRO*     5.1     1.6    -      -       +      -
    125C  ILE*     4.8     2.9    -      -       +      +
    128C  LYS*     3.7    16.2    -      -       +      -
    129C  ALA*     3.5    31.0    -      -       +      +
    132C  THR*     3.3    31.4    -      -       +      +
    149C  VAL*     3.8    35.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 126 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  TYR*     4.3     3.8    -      -       +      +
     98B  PHE*     3.3    40.1    -      -       +      -
    100B  ILE*     4.3     6.7    -      -       +      -
    122B  ILE*     3.0    22.3    +      -       +      +
    123B  SER*     3.6     6.5    -      -       -      +
    125B  ILE*     1.3    79.3    -      -       +      +
    127B  ASP*     1.3    66.9    +      -       -      +
    129B  ALA*     3.4     2.1    +      -       -      +
    130B  TYR*     2.9    28.6    +      -       -      +
    151B  PRO*     4.1    12.3    -      -       +      -
    153B  ASN*     3.4    37.2    -      -       -      +
    149C  VAL*     5.8     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 127 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96B  TYR*     2.5    39.4    +      -       -      -
    123B  SER*     3.0    24.2    +      -       -      +
    124B  GLU*     3.7     5.3    -      -       -      +
    126B  VAL*     1.3    75.2    -      -       -      +
    128B  LYS*     1.3    65.8    +      -       +      +
    130B  TYR*     3.5     0.9    +      -       -      +
    131B  ARG*     3.1    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 128 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  GLU*     3.0    51.0    +      -       -      +
    125B  ILE*     3.7    14.6    -      -       +      +
    127B  ASP*     1.3    77.7    -      -       +      +
    129B  ALA*     1.3    62.2    +      -       -      +
    131B  ARG*     3.7     4.9    -      -       -      +
    132B  THR*     3.0    28.3    +      -       -      -
    125C  ILE*     4.2     6.3    -      -       +      -
    128C  LYS*     4.1    36.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 129 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125B  ILE*     2.8    25.4    +      -       +      +
    126B  VAL      3.7     3.4    -      -       -      +
    128B  LYS*     1.3    73.4    -      -       -      +
    130B  TYR*     1.3    58.9    +      -       -      +
    132B  THR*     3.4     3.3    +      -       -      -
    133B  TYR*     2.9    27.9    +      -       -      +
    149B  VAL*     3.6    26.6    -      -       -      +
    150B  LEU*     4.3     2.0    -      -       -      -
    151B  PRO*     3.8    17.5    -      -       +      -
    125C  ILE*     3.9    16.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 130 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  LYS*     5.0     1.7    -      -       -      +
     94B  LEU      2.7    26.8    +      -       -      -
     95B  SER*     4.1     3.2    -      -       -      -
     96B  TYR*     3.5    52.4    +      +       +      +
     98B  PHE*     4.1    13.9    -      +       +      -
    126B  VAL      2.9    17.9    +      -       -      +
    127B  ASP      4.1     2.2    -      -       -      +
    129B  ALA*     1.3    74.2    -      -       -      +
    131B  ARG*     1.3    60.1    +      -       -      +
    133B  TYR*     3.2    26.0    +      +       -      +
    134B  LEU*     2.8    66.5    +      -       +      +
    150B  LEU*     3.8    16.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 131 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127B  ASP      3.1    18.6    +      -       -      +
    128B  LYS*     3.7     6.7    -      -       -      +
    130B  TYR*     1.3    74.4    -      -       -      +
    132B  THR*     1.3    53.6    +      -       -      +
    134B  LEU*     3.0    14.1    +      -       -      +
    135B  GLU*     2.7    65.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 132 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128B  LYS      3.0    11.6    +      -       -      -
    129B  ALA      3.5     5.6    -      -       -      -
    131B  ARG*     1.3    77.8    -      -       -      +
    133B  TYR*     1.3    54.6    +      -       -      +
    135B  GLU*     3.1    15.2    +      -       -      +
    136B  LEU*     2.8    54.5    +      -       +      +
    149B  VAL*     4.3     0.2    -      -       +      -
    121C  LYS*     4.3    18.7    +      -       +      +
    124C  GLU*     6.1     0.5    -      -       -      +
    125C  ILE*     2.8    45.1    -      -       +      +
    128C  LYS*     5.7     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 133 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89B  GLY      5.1     0.5    +      -       -      -
     92B  SER      4.0     4.3    +      -       -      -
     93B  LYS*     3.8     5.2    -      -       +      -
     94B  LEU*     3.1    37.9    +      -       +      +
    129B  ALA      2.9    14.9    +      -       -      +
    130B  TYR*     3.2    38.4    -      +       -      +
    132B  THR*     1.3    76.0    -      -       -      +
    134B  LEU*     1.3    71.0    +      -       +      +
    136B  LEU*     3.3     4.8    +      -       -      +
    137B  ILE*     3.1    55.0    +      -       +      +
    143B  ARG*     4.5     5.0    -      -       -      +
    146B  ALA*     3.4    21.8    -      -       +      -
    147B  ARG*     3.6    27.9    -      -       +      +
    149B  VAL*     4.1     9.4    -      -       +      +
    150B  LEU*     3.6    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 134 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  LYS*     5.1     9.6    -      -       +      -
    130B  TYR*     2.8    64.8    +      -       +      +
    131B  ARG*     3.5    13.5    -      -       -      +
    133B  TYR*     1.3    82.0    -      -       +      +
    135B  GLU*     1.3    66.4    +      -       +      +
    137B  ILE*     3.4     7.9    +      -       +      +
    138B  GLU*     3.0    42.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 135 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131B  ARG*     2.7    46.8    +      -       -      +
    132B  THR*     3.5    13.0    +      -       -      +
    134B  LEU*     1.3    70.1    -      -       -      +
    136B  LEU*     1.3    65.7    +      -       -      +
    138B  GLU*     3.4    14.7    +      -       -      +
    139B  SER*     3.1    28.3    +      -       -      +
    121C  LYS*     2.4    44.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 136 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132B  THR*     2.8    38.0    +      -       +      +
    133B  TYR      3.7     4.3    -      -       -      +
    135B  GLU*     1.3    73.9    -      -       -      +
    137B  ILE*     1.3    62.6    +      -       -      +
    139B  SER*     3.1     8.9    +      -       -      -
    141B  VAL*     3.1    35.1    +      -       +      +
    146B  ALA*     3.8    31.2    -      -       +      +
    149B  VAL*     4.5     2.9    -      -       +      -
    113C  ILE*     4.9     4.9    -      -       +      -
    118C  VAL*     4.1    23.3    -      -       +      -
    121C  LYS*     4.1    27.8    -      -       +      -
    122C  ILE*     3.9    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 137 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  LYS*     4.5    11.7    -      -       +      -
    133B  TYR*     3.1    54.7    +      -       +      +
    134B  LEU*     3.7     9.6    -      -       +      +
    135B  GLU      3.3     0.2    -      -       -      -
    136B  LEU*     1.3    74.4    -      -       -      +
    138B  GLU*     1.3    61.4    +      -       +      +
    140B  GLY*     3.0    20.6    +      -       -      -
    141B  VAL      3.9    10.2    +      -       -      +
    143B  ARG*     3.8    33.0    -      -       +      +
    146B  ALA*     3.9    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 138 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134B  LEU*     3.0    37.4    +      -       +      +
    135B  GLU*     3.7    12.9    +      -       -      +
    136B  LEU      3.3     0.2    -      -       -      -
    137B  ILE*     1.3    79.4    -      -       +      +
    139B  SER*     1.3    59.9    +      -       -      +
    140B  GLY      3.2     1.5    +      -       -      -
    112C  THR*     4.2     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 139 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135B  GLU*     3.1    13.8    +      -       -      +
    136B  LEU*     3.1    11.2    +      -       -      -
    138B  GLU*     1.3    76.2    -      -       -      +
    140B  GLY*     1.3    57.3    +      -       -      +
    141B  VAL*     3.5     4.5    -      -       -      -
    110C  LYS      3.9     0.3    -      -       -      +
    111C  THR*     2.8    11.0    -      -       -      -
    112C  THR*     2.8    50.2    +      -       -      +
    113C  ILE*     3.8    30.0    -      -       -      +
----------------------------------------------------------
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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