Contacts of the helix formed by residues 81 - 104 (chain C) in PDB entry 3D29


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 LEU 81 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  PHE*     3.7    27.8    -      -       +      -
     19B  GLY      5.0     3.8    -      -       -      +
     20B  ARG*     6.4     0.4    -      -       -      -
     21B  LEU*     3.9    24.7    -      -       +      -
     30C  ALA*     4.3    14.4    -      -       +      +
     33C  ARG*     6.6     0.4    -      -       -      -
     78C  PHE*     4.0     0.7    -      -       -      -
     80C  GLY*     1.3    71.8    -      -       -      -
     82C  ASN*     1.3    65.4    +      -       -      +
     83C  ALA*     4.7     2.5    -      -       +      +
     84C  ASP*     3.4    33.6    +      -       +      +
     85C  SER*     3.3    17.8    +      -       -      -
    130C  ARG*     4.2     0.2    -      -       -      +
    133C  GLY*     2.9    16.6    +      -       -      +
    134C  VAL*     3.5     6.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  ASN*     3.0    38.8    +      -       -      +
    158B  THR*     5.5     2.9    -      -       -      +
     35C  THR*     6.4     0.2    -      -       -      +
     53C  ARG*     4.6    11.1    +      -       -      +
     66C  LYS*     3.9    11.8    -      -       -      +
     78C  PHE*     3.3    25.8    -      -       +      -
     80C  GLY      3.4     7.9    +      -       -      -
     81C  LEU*     1.3    69.3    -      -       -      +
     83C  ALA*     1.3    67.2    +      -       -      +
     85C  SER*     2.5    26.1    +      -       -      -
     86C  ARG*     3.3    10.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  ASP*     5.4     0.3    -      -       -      +
    121B  GLN*     3.4    31.1    -      -       +      +
    154B  SER*     3.5    20.4    -      -       -      +
    155B  GLY      3.6    16.6    -      -       -      +
    156B  ASN*     4.0     4.8    -      -       +      +
     81C  LEU*     3.4     2.4    -      -       +      -
     82C  ASN*     1.3    80.1    -      -       -      +
     84C  ASP*     1.3    65.9    +      -       -      +
     86C  ARG*     3.3    29.0    +      -       -      +
     87C  ILE*     3.9     4.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  GLN*     3.0    18.5    -      -       -      +
    124B  THR*     4.7     0.3    -      -       -      +
    125B  GLN*     4.5     0.9    -      -       -      -
     81C  LEU*     3.4    17.6    +      -       +      +
     82C  ASN      3.2     0.8    -      -       -      -
     83C  ALA*     1.3    79.2    -      -       -      +
     85C  SER*     1.3    62.2    +      -       -      +
     87C  ILE*     3.2    19.1    +      -       -      +
     88C  LEU*     3.5     4.0    +      -       -      +
    130C  ARG*     2.7    46.3    +      -       -      -
    132C  PHE*     3.6    20.0    -      -       +      -
    133C  GLY      3.0    14.9    +      -       -      -
    134C  VAL*     3.5    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76C  LEU*     5.9     0.7    -      -       -      -
     78C  PHE*     3.2    52.5    -      -       -      -
     81C  LEU      3.3     3.2    +      -       -      -
     82C  ASN*     2.5    20.9    +      -       -      +
     84C  ASP*     1.3    76.4    -      -       -      +
     86C  ARG*     1.3    67.8    +      -       -      +
     88C  LEU*     3.2     7.9    +      -       -      +
     89C  ILE*     2.9    33.5    +      -       -      +
    134C  VAL*     3.8    10.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114B  ARG*     3.9    19.5    -      -       -      +
    117B  SER*     3.1    20.6    +      -       -      -
    118B  ASP*     2.8    36.1    +      -       -      +
    121B  GLN*     4.6     1.2    -      -       -      +
    155B  GLY*     2.6    30.1    +      -       -      -
    156B  ASN*     4.2     8.1    -      -       -      +
    157B  TYR*     3.8    32.8    -      -       -      -
     64C  PRO*     6.4     1.6    -      -       -      -
     82C  ASN*     3.9     6.2    +      -       -      +
     83C  ALA*     3.3    25.9    +      -       -      +
     84C  ASP      3.3     0.8    -      -       -      -
     85C  SER*     1.3    82.2    +      -       -      +
     87C  ILE*     1.3    58.9    +      -       +      +
     89C  ILE*     3.3     9.3    +      -       +      +
     90C  GLU*     2.9    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  ASP*     5.1    19.5    -      -       +      +
    121B  GLN*     3.7    35.2    -      -       +      +
    125B  GLN*     4.7     3.4    -      -       -      +
     83C  ALA      4.0     3.8    -      -       -      +
     84C  ASP      3.5    11.0    -      -       -      +
     85C  SER      3.2     0.4    -      -       -      -
     86C  ARG*     1.3    77.7    -      -       +      +
     88C  LEU*     1.3    61.6    +      -       -      +
     90C  GLU*     3.4     4.9    +      -       +      +
     91C  LYS*     3.1    47.1    +      -       +      +
    123C  TYR*     5.1     3.6    -      -       -      +
    132C  PHE*     3.9    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76C  LEU*     5.7     4.5    -      -       +      -
     84C  ASP      3.5     3.3    +      -       -      +
     85C  SER*     3.2     8.3    +      -       -      +
     87C  ILE*     1.3    78.8    -      -       -      +
     89C  ILE*     1.3    60.2    +      -       +      +
     91C  LYS*     3.5     4.5    +      -       +      +
     92C  ALA*     3.0    29.3    +      -       -      +
    116C  VAL*     4.4    17.3    -      -       +      +
    119C  VAL*     3.8    21.8    -      -       +      -
    120C  GLN*     3.8    35.0    -      -       +      +
    132C  PHE*     3.8    41.1    -      -       +      -
    134C  VAL*     4.2    20.4    -      -       +      -
    136C  THR*     4.3     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  SER*     3.5    24.2    -      -       -      +
     70C  ILE*     4.0    13.2    -      -       +      -
     76C  LEU*     3.6    32.8    -      -       +      +
     78C  PHE*     4.7     7.2    -      -       +      -
     85C  SER*     2.9    35.7    +      -       -      +
     86C  ARG*     3.7     8.1    -      -       +      +
     88C  LEU*     1.3    74.2    -      -       +      +
     90C  GLU*     1.3    67.3    +      -       -      +
     92C  ALA*     3.4     2.4    +      -       -      +
     93C  ARG*     3.0    56.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  ARG      2.9    17.8    +      -       -      +
     87C  ILE*     3.8     6.5    -      -       +      +
     89C  ILE*     1.3    77.3    -      -       -      +
     91C  LYS*     1.3    67.0    +      -       +      +
     93C  ARG*     3.2    12.4    +      -       -      +
     94C  VAL*     2.9    43.5    +      -       +      +
     65J  LEU*     4.5     1.3    -      -       -      +
     69J  ARG*     2.8    49.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  ILE*     3.1    32.8    +      -       +      +
     88C  LEU*     3.8     4.9    -      -       +      +
     90C  GLU*     1.3    80.8    -      -       +      +
     92C  ALA*     1.3    62.7    +      -       -      +
     94C  VAL*     3.3     8.5    +      -       -      +
     95C  GLU*     2.9    24.3    +      -       -      +
    115C  TYR*     3.6    26.2    +      -       +      +
    119C  VAL*     4.1    22.8    -      -       +      +
    122C  ARG*     4.9     7.9    -      -       -      +
    123C  TYR*     3.7    27.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  ILE*     3.6    26.6    -      -       +      +
     76C  LEU*     5.3     1.1    -      -       +      -
     88C  LEU      3.0    17.7    +      -       -      +
     89C  ILE*     3.7     4.3    -      -       -      +
     90C  GLU      3.2     0.2    -      -       -      -
     91C  LYS*     1.3    76.2    -      -       -      +
     93C  ARG*     1.3    58.3    +      -       -      +
     95C  GLU*     3.2     2.9    +      -       -      +
     96C  ALA*     2.9    28.9    +      -       -      +
    112C  LEU*     3.9     6.6    -      -       +      +
    115C  TYR*     4.0    12.3    -      -       -      -
    116C  VAL*     3.9    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  SER*     3.9    10.1    +      -       -      +
     69C  LYS*     2.7    36.5    +      -       -      +
     70C  ILE*     3.5    29.9    -      -       +      +
     89C  ILE*     3.0    38.3    +      -       -      +
     90C  GLU*     3.6    12.8    +      -       -      +
     92C  ALA*     1.3    75.9    -      -       -      +
     94C  VAL*     1.3    62.7    +      -       -      +
     96C  ALA*     3.2     4.9    +      -       -      +
     97C  GLN*     3.2    25.5    +      -       -      +
     65J  LEU*     3.8    14.4    -      -       +      -
     68J  ILE*     3.2    25.6    +      -       +      +
     69J  ARG*     3.4    35.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  GLU*     2.9    38.7    +      -       +      +
     91C  LYS*     3.5    10.8    -      -       -      +
     93C  ARG*     1.3    77.3    -      -       -      +
     95C  GLU*     1.3    63.6    +      -       -      +
     97C  GLN*     3.2     6.1    +      -       -      +
     98C  SER*     3.1    24.1    +      -       -      -
     65J  LEU*     4.1    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91C  LYS      2.9    17.0    +      -       -      +
     92C  ALA      3.6     4.3    -      -       -      +
     94C  VAL*     1.3    78.9    -      -       -      +
     96C  ALA*     1.3    58.2    +      -       -      +
     98C  SER*     4.3    12.6    +      -       -      -
     99C  HIS*     2.8    34.0    +      -       -      +
    107C  VAL*     5.2     0.4    -      -       +      -
    111C  TYR*     2.6    39.2    +      -       +      -
    112C  LEU*     4.9     4.3    -      -       +      -
    115C  TYR*     3.7    42.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  ILE*     4.0    23.6    -      -       +      +
     71C  ASP*     4.1    16.6    -      -       +      +
     92C  ALA      2.9    14.0    +      -       -      +
     93C  ARG      3.2     9.8    +      -       -      +
     95C  GLU*     1.3    78.4    -      -       -      +
     97C  GLN*     1.3    62.6    +      -       +      +
     99C  HIS*     3.6     2.3    +      -       -      +
    100C  ARG*     3.2    29.9    +      -       -      +
    107C  VAL*     4.0    21.6    -      -       +      +
    112C  LEU*     4.9     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  ILE      5.6     0.5    -      -       -      +
     71C  ASP*     4.5     9.4    -      -       -      +
     93C  ARG      3.2    12.6    +      -       -      +
     94C  VAL*     3.2     7.6    +      -       -      +
     96C  ALA*     1.3    76.4    -      -       +      +
     98C  SER*     1.3    66.0    +      -       -      +
    100C  ARG*     3.3    20.3    +      -       -      +
    101C  LEU*     3.1    23.4    +      -       -      +
     61J  ALA*     3.8    32.1    +      -       +      +
     64J  GLN*     3.0    51.9    +      -       -      +
     65J  LEU*     3.9    17.6    -      -       +      -
     68J  ILE*     4.6     7.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  VAL*     3.1    20.0    +      -       -      -
     95C  GLU*     3.6    15.5    +      -       -      -
     97C  GLN*     1.3    77.7    -      -       -      +
     99C  HIS*     1.3    62.1    +      -       -      +
    101C  LEU*     3.0    12.5    +      -       -      +
    102C  THR*     2.9    33.5    +      -       -      +
     61J  ALA*     6.0     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95C  GLU*     2.8    23.0    +      -       -      +
     96C  ALA      3.9     0.7    -      -       -      +
     98C  SER*     1.3    75.8    +      -       -      +
    100C  ARG*     1.3    57.6    +      -       -      +
    102C  THR*     3.9     5.8    -      -       -      -
    103C  LEU*     2.9    65.9    +      -       +      +
    105C  ASP*     2.7    31.4    +      -       +      -
    106C  PRO      3.8    11.2    -      -       -      -
    107C  VAL*     3.4    27.4    +      -       +      -
    108C  THR*     5.2     2.0    -      -       +      -
    111C  TYR*     3.9    37.5    -      +       -      -
     66K  HIS*     6.2     0.4    -      -       -      -
     70K  GLU*     6.3     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  ASP*     2.9    29.0    +      -       -      -
     72C  SER*     4.8     6.9    +      -       -      -
     73C  HIS*     4.4     2.0    +      -       -      -
     96C  ALA      3.2    18.0    +      -       -      +
     97C  GLN*     3.5    23.5    +      -       -      +
     98C  SER      3.2     0.4    -      -       -      -
     99C  HIS*     1.3    76.8    -      -       -      +
    101C  LEU*     1.3    59.0    +      -       +      +
    104C  GLU*     3.0    27.7    -      -       -      +
    105C  ASP      3.6     8.9    +      -       -      +
    106C  PRO*     2.8    58.4    -      -       +      +
     64J  GLN*     3.8    20.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  GLN      3.1     9.6    +      -       -      +
     98C  SER*     3.0    14.2    +      -       -      +
    100C  ARG*     1.3    81.2    -      -       +      +
    102C  THR*     1.3    63.9    +      -       +      +
    104C  GLU      4.0     0.5    +      -       -      -
     57J  GLU*     3.4    50.9    -      -       +      +
     58J  TYR*     4.6     8.1    -      -       +      -
     60J  GLN*     5.2     5.4    -      -       -      +
     61J  ALA*     4.1    22.4    -      -       +      +
     81K  LYS*     3.1    32.5    +      -       -      +
     85K  ASN*     5.1     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  SER*     2.9    27.2    +      -       -      +
     99C  HIS*     3.9     1.9    -      -       -      -
    101C  LEU*     1.3    80.3    -      -       +      +
    103C  LEU*     1.3    80.5    +      -       -      +
    104C  GLU      3.7     0.3    +      -       -      -
     78K  ALA*     4.6     4.9    -      -       -      +
     81K  LYS*     3.8    22.3    -      -       -      +
     82K  ILE*     5.5     3.8    -      -       -      +
     85K  ASN*     4.3    18.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  HIS*     2.9    58.7    +      -       +      +
    102C  THR*     1.3    91.6    -      -       -      +
    104C  GLU*     1.3    71.6    +      -       -      +
    105C  ASP*     3.3     8.5    +      -       +      +
     66K  HIS*     4.0    29.2    -      -       +      +
     74K  ILE*     4.9     2.2    -      -       +      -
     75K  SER*     4.6     3.1    +      -       -      -
     77K  ALA*     5.3     0.7    -      -       -      +
     78K  ALA*     3.9    31.9    +      -       +      +
     82K  ILE*     6.0     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  ARG      3.0    17.1    +      -       -      +
    101C  LEU      4.2     0.9    -      -       -      +
    102C  THR      3.3     0.2    -      -       -      -
    103C  LEU*     1.3    80.0    -      -       -      +
    105C  ASP*     1.3    62.9    +      -       -      +
     57J  GLU*     4.4     3.5    -      -       -      +
     77K  ALA*     3.8    15.0    -      -       +      +
     81K  LYS*     3.1    33.1    +      -       +      +
    111K  TYR*     4.0     5.2    +      -       -      -
    119K  ARG*     2.6    46.9    +      -       -      -
----------------------------------------------------------
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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