Contacts of the helix formed by residues 42 - 66 (chain B) in PDB entry 3RLQ


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 GLU 42 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  ASN*     3.1    10.8    -      -       +      +
     41B  LYS*     1.3    77.0    -      -       -      +
     43B  ILE*     1.3    65.0    +      -       +      +
     44B  PHE*     3.0    10.4    +      -       -      -
     45B  LEU*     3.2    10.9    +      -       -      +
     46B  ARG      4.2     0.3    +      -       -      -
    197B  TYR*     3.5    22.5    +      -       +      +
    202B  ARG*     2.6    44.9    +      -       -      +
    206B  ILE*     3.8    24.2    -      -       +      +
    209B  LYS*     3.0    25.6    +      -       -      +
    210B  HIS*     2.8    33.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 43 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  ASN*     3.4    38.8    -      -       +      +
     41B  LYS      4.4     2.2    -      -       -      +
     42B  GLU*     1.3    82.6    -      -       +      +
     44B  PHE*     1.3    68.5    +      -       -      +
     45B  LEU      3.1     0.4    -      -       -      -
     46B  ARG*     3.1    44.8    +      -       -      +
     47B  GLU*     3.0    31.8    +      -       +      +
    128B  ILE*     4.5    10.3    -      -       +      +
    129B  SER*     5.0     2.7    -      -       -      -
    131B  ILE*     4.3     9.2    -      -       +      -
    140B  SER*     3.9    24.2    -      -       -      +
    143B  LEU*     4.2     8.7    -      -       +      -
    210B  HIS*     4.6    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 44 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  LYS      3.2    23.3    +      -       -      +
     42B  GLU      3.0     5.5    +      -       -      -
     43B  ILE*     1.3    79.9    -      -       -      +
     45B  LEU*     1.3    85.4    +      -       +      +
     47B  GLU*     3.2     4.0    +      -       -      +
     48B  LEU*     3.0    33.2    +      -       +      +
     89B  LEU*     4.0    21.1    -      -       +      -
    140B  SER*     3.4    40.3    +      -       -      +
    141B  ALA*     4.2     2.5    -      -       -      -
    144B  VAL*     3.6    25.4    -      -       +      -
    188B  LEU*     3.4    31.6    -      -       +      -
    190B  LEU*     5.5     0.2    -      -       +      -
    197B  TYR*     3.7    37.5    -      +       +      -
----------------------------------------------------------
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Residues in contact with LEU 45 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  GLU      3.2     9.6    +      -       -      +
     43B  ILE      3.1     0.6    -      -       -      -
     44B  PHE*     1.3   102.1    -      -       +      +
     46B  ARG*     1.3    66.7    +      -       -      +
     48B  LEU*     3.4     3.1    +      -       +      +
     49B  ILE*     3.0    50.4    +      -       +      +
     80B  LEU*     4.4     6.7    -      -       +      -
     89B  LEU*     4.8     7.2    -      -       +      -
     91B  ILE*     4.1    23.3    -      -       +      -
    197B  TYR*     6.2     0.2    -      -       +      -
    203B  ILE*     4.4    17.9    -      -       +      -
    206B  ILE*     4.0    27.8    -      -       +      -
    207B  VAL*     4.2    19.7    -      -       +      -
    211B  SER*     5.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 46 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  GLU      4.2     1.0    +      -       -      -
     43B  ILE*     3.1    38.4    +      -       -      +
     45B  LEU*     1.3    79.9    -      -       -      +
     47B  GLU*     1.3    84.5    +      -       -      +
     49B  ILE*     3.9     1.4    -      -       -      +
     50B  SER*     2.9    33.1    +      -       -      -
    129B  SER*     2.9    29.1    +      -       -      +
    206B  ILE*     5.0     2.0    -      -       -      +
    210B  HIS*     3.7    58.4    +      -       +      +
    211B  SER*     4.2    11.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 47 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  ILE*     3.0    17.8    +      -       +      +
     44B  PHE      3.2     6.7    +      -       -      +
     46B  ARG*     1.3   113.8    +      -       -      +
     48B  LEU*     1.3    58.2    +      -       +      +
     50B  SER*     3.3     8.2    +      -       -      -
     51B  ASN*     3.0    33.2    +      -       -      +
    129B  SER      4.2     1.7    -      -       -      +
    131B  ILE*     4.1     2.9    -      -       +      -
    132B  GLY*     3.2    33.0    +      -       -      -
    137B  GLY*     3.6    26.2    -      -       -      +
    140B  SER*     3.5    13.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 48 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  PHE*     3.0    27.9    +      -       +      +
     45B  LEU*     4.0     3.6    -      -       -      +
     47B  GLU*     1.3    76.1    -      -       -      +
     49B  ILE*     1.3    58.3    +      -       -      +
     51B  ASN*     3.2     4.0    +      -       -      +
     52B  SER*     2.9    30.4    +      -       -      -
     91B  ILE*     3.8    37.7    -      -       +      -
    137B  GLY      5.2     0.7    -      -       -      +
    138B  PHE*     4.0    29.4    -      -       +      +
    141B  ALA*     4.5     4.9    -      -       +      +
    186B  VAL*     4.2     9.9    -      -       +      -
    188B  LEU*     3.9    27.1    -      -       +      -
    901B  3RQ      3.2    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 49 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  LEU*     3.0    44.1    +      -       +      +
     46B  ARG      4.0     2.5    -      -       -      +
     48B  LEU*     1.3    72.6    -      -       -      +
     50B  SER*     1.3    62.5    +      -       -      +
     52B  SER*     3.2     8.1    +      -       -      -
     53B  SER*     2.8    27.2    +      -       -      -
     78B  ILE*     4.0    19.2    -      -       +      +
     80B  LEU*     4.3    17.3    -      -       +      -
     91B  ILE*     4.9     2.9    -      -       +      -
    207B  VAL*     4.2    17.5    -      -       +      -
    211B  SER*     3.9    18.6    -      -       -      +
    214B  ILE*     3.8    26.7    -      -       +      -
    218B  ILE*     4.3    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 50 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  ARG*     2.9    22.6    +      -       -      -
     47B  GLU*     3.4    11.4    -      -       -      -
     49B  ILE*     1.3    78.4    -      -       -      +
     51B  ASN*     1.3    59.8    +      -       -      +
     53B  SER*     3.3     7.5    +      -       -      -
     54B  ASP*     3.0    38.4    +      -       -      +
    214B  ILE*     4.6     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 51 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  GLU      3.0    17.2    +      -       -      +
     48B  LEU      3.6     2.5    -      -       -      +
     50B  SER*     1.3    78.4    +      -       -      +
     52B  SER*     1.3    62.4    +      -       -      +
     54B  ASP*     3.4    13.1    +      -       -      +
     55B  ALA*     3.0    22.5    +      -       -      +
    137B  GLY*     4.7     3.5    +      -       -      +
    138B  PHE*     3.8    26.1    -      -       -      +
    901B  3RQ      3.4    70.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 52 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48B  LEU      2.9    12.4    +      -       -      -
     49B  ILE*     3.2     9.4    +      -       -      -
     51B  ASN*     1.3    74.9    -      -       -      +
     53B  SER*     1.3    60.9    +      -       -      +
     55B  ALA*     3.1     2.9    +      -       -      +
     56B  LEU*     2.9    34.0    +      -       -      +
     78B  ILE*     3.8    13.9    -      -       -      -
     91B  ILE*     3.9    15.1    -      -       -      +
     93B  ASP*     2.9    36.5    +      -       -      +
    901B  3RQ      3.2    12.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 53 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  ILE      2.8    16.6    +      -       -      -
     50B  SER      3.5     8.3    -      -       -      -
     52B  SER*     1.3    72.2    -      -       -      +
     54B  ASP*     1.3    61.6    +      -       -      +
     56B  LEU*     3.2    12.8    +      -       -      +
     57B  ASP*     2.8    35.7    +      -       -      +
     78B  ILE*     4.2     1.3    -      -       -      +
    214B  ILE*     4.0    31.1    -      -       -      +
    215B  GLY      4.8     2.1    +      -       -      -
    216B  TYR*     3.8    15.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 54 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  SER*     3.0    27.3    +      -       -      +
     51B  ASN*     3.6    16.0    -      -       -      +
     52B  SER      3.2     0.2    -      -       -      -
     53B  SER*     1.3    78.2    +      -       -      +
     55B  ALA*     1.3    62.8    +      -       -      +
     57B  ASP*     3.2    15.2    +      -       -      +
     58B  LYS*     3.0    36.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 55 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  ASN      3.0     8.2    +      -       -      +
     52B  SER      3.1     7.8    +      -       -      +
     54B  ASP*     1.3    79.3    -      -       -      +
     56B  LEU*     1.3    60.5    +      -       -      +
     58B  LYS*     3.3    14.8    +      -       -      +
     59B  ILE      3.3     5.0    +      -       -      -
     93B  ASP*     4.3     1.3    -      -       -      +
     95B  GLY*     3.8     6.3    -      -       -      -
     96B  ILE*     3.1    30.6    +      -       -      +
    901B  3RQ      3.2    43.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 56 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  SER      2.9    19.8    +      -       -      +
     53B  SER      3.6     2.9    -      -       -      +
     55B  ALA*     1.3    72.7    -      -       -      +
     57B  ASP*     1.3    66.3    +      -       -      +
     59B  ILE*     3.3     4.2    -      -       -      +
     60B  ARG*     3.0    24.8    +      -       -      +
     76B  LEU*     4.0    11.0    -      -       +      +
     77B  HIS      3.8    11.7    -      -       -      +
     78B  ILE*     3.6    30.3    -      -       +      -
     93B  ASP*     4.3     2.7    -      -       +      -
     94B  THR*     3.4    24.9    -      -       -      +
     95B  GLY*     3.3    27.6    -      -       -      +
    216B  TYR*     3.5    40.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 57 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53B  SER*     2.8    17.9    +      -       -      +
     54B  ASP*     3.2    18.5    +      -       -      +
     56B  LEU*     1.3    76.8    -      -       -      +
     58B  LYS*     1.3    57.8    +      -       +      +
     60B  ARG*     3.3    17.2    +      -       -      +
     61B  TYR*     2.9    53.8    +      -       +      -
    216B  TYR*     2.6    33.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 58 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54B  ASP*     3.0    22.9    +      -       -      +
     55B  ALA*     3.6     9.4    -      -       -      +
     56B  LEU      3.2     0.6    -      -       -      -
     57B  ASP*     1.3    77.9    -      -       +      +
     59B  ILE*     1.3    57.4    +      -       -      +
     61B  TYR*     3.5     5.8    +      -       -      +
     62B  GLU*     2.9    34.1    +      -       -      +
     96B  ILE*     4.1    29.2    -      -       +      -
    901B  3RQ      5.8     5.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 59 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55B  ALA      3.3     7.6    +      -       -      +
     56B  LEU      3.3    11.4    -      -       -      +
     58B  LYS*     1.3    76.0    -      -       -      +
     60B  ARG*     1.3    68.8    +      -       -      +
     62B  GLU*     3.4    21.4    +      -       -      +
     63B  SER*     3.0    22.9    +      -       -      -
     69B  LYS*     3.9    20.6    -      -       +      +
     70B  LEU*     3.8    13.6    -      -       +      +
     76B  LEU*     3.7    23.6    -      -       +      -
     94B  THR      4.0     0.7    -      -       -      +
     95B  GLY*     4.0    12.3    -      -       -      -
     96B  ILE*     3.8    22.4    -      -       +      +
    155B  ASN*     4.0     7.6    -      -       -      +
    182B  ARG*     3.7    25.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 60 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  LEU      3.0    17.7    +      -       -      +
     57B  ASP*     3.3    24.1    +      -       -      +
     59B  ILE*     1.3    80.4    -      -       -      +
     61B  TYR*     1.3    96.4    +      -       +      +
     63B  SER*     2.6    26.2    +      -       -      +
     64B  LEU*     3.5    11.4    +      -       +      +
     70B  LEU*     5.4     0.9    -      -       +      -
     76B  LEU*     4.0    24.9    -      -       +      -
    216B  TYR*     2.9    24.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 61 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  ASP*     2.9    45.3    +      -       +      +
     58B  LYS*     4.0     4.9    -      -       -      +
     60B  ARG*     1.3   111.8    +      -       +      +
     62B  GLU*     1.3    65.5    -      -       -      +
     64B  LEU*     3.1    43.3    -      -       +      +
     65B  THR*     4.0     4.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 62 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58B  LYS*     2.9    22.0    +      -       +      +
     59B  ILE*     3.6    16.1    -      -       -      +
     61B  TYR*     1.3    76.8    -      -       -      +
     63B  SER*     1.3    61.9    +      -       -      +
     64B  LEU      3.0     1.6    +      -       -      -
     65B  THR*     3.2    10.2    +      -       -      -
     66B  ASP*     3.1    22.7    +      -       -      +
     69B  LYS*     3.7    32.4    -      -       +      +
     96B  ILE*     3.6    23.5    -      -       +      +
    154B  HIS*     5.7     2.1    +      -       -      -
    155B  ASN*     5.2     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 63 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59B  ILE      3.0    12.5    +      -       -      -
     60B  ARG*     2.6    24.2    +      -       -      +
     62B  GLU*     1.3    75.5    -      -       -      +
     64B  LEU*     1.3    64.3    +      -       -      +
     65B  THR      3.3     0.4    -      -       -      -
     66B  ASP      3.4    13.9    -      -       -      -
     67B  PRO*     3.4    25.4    -      -       -      +
     69B  LYS*     4.4     2.2    -      -       -      +
     70B  LEU*     3.4    38.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 64 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60B  ARG*     3.7    14.8    -      -       +      +
     61B  TYR*     3.1    43.0    +      -       +      +
     62B  GLU      3.0     0.6    -      -       -      -
     63B  SER*     1.3    81.9    +      -       -      +
     65B  THR*     1.3    64.3    +      -       +      +
     67B  PRO*     5.1     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 65 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61B  TYR      4.7     2.8    +      -       -      +
     62B  GLU*     3.2    10.0    +      -       -      -
     64B  LEU*     1.3    85.2    -      -       +      +
     66B  ASP*     1.3    64.5    +      -       -      +
     67B  PRO*     4.0     5.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 66 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62B  GLU      3.1     9.0    +      -       -      +
     63B  SER*     3.4     7.4    -      -       -      -
     65B  THR*     1.3    84.6    -      -       -      +
     67B  PRO*     1.3    67.9    -      -       -      +
     68B  SER*     2.7    28.5    +      -       -      -
     69B  LYS*     3.0    50.3    +      -       +      +
----------------------------------------------------------
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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