Contacts of the helix formed by residues 82 - 108 (chain C) in PDB entry 3J41


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 SER 82 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  PHE*     5.5     0.9    -      -       -      -
     76C  LEU*     3.9     1.1    -      -       -      -
     81C  MET*     1.3    77.6    -      -       -      +
     83C  LEU*     1.3    64.6    +      -       -      +
     84C  LEU*     3.1    12.3    +      -       -      +
     85C  ARG*     3.1    26.8    +      -       -      +
     86C  ALA*     3.1    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76C  LEU*     3.8    31.8    -      -       +      +
     82C  SER*     1.3    74.1    -      -       -      +
     84C  LEU*     1.3    58.8    +      -       -      +
     86C  ALA*     3.8     0.5    +      -       -      +
     87C  ILE*     3.0    55.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  PHE*     4.5    16.2    -      -       +      -
     82C  SER*     3.0     9.8    -      -       -      +
     83C  LEU*     1.3    78.6    -      -       -      +
     85C  ARG*     1.3    66.2    +      -       -      +
     87C  ILE*     3.6     5.9    +      -       +      +
     88C  CYS*     3.1    43.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  PHE*     3.5    54.3    -      -       +      +
     12C  ALA*     4.5     8.5    -      -       -      +
     62C  ILE      5.6     0.8    +      -       -      -
     63C  SER*     6.3     0.2    -      -       -      +
     81C  MET*     3.8    21.1    -      -       +      +
     82C  SER*     3.1    24.5    +      -       -      +
     84C  LEU*     1.3    72.4    -      -       -      +
     86C  ALA*     1.3    57.4    +      -       -      +
     88C  CYS*     3.0     2.3    +      -       -      -
     89C  TYR*     2.6    76.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  THR*     3.5    24.2    -      -       +      -
     73C  PHE*     6.0     0.4    -      -       -      -
     76C  LEU*     3.9    27.6    -      -       +      -
     81C  MET*     3.5     7.3    -      -       +      +
     82C  SER      3.1    15.1    +      -       -      +
     83C  LEU      3.9     4.7    -      -       -      +
     85C  ARG*     1.3    78.1    -      -       -      +
     87C  ILE*     1.3    59.8    +      -       +      +
     89C  TYR*     3.1     2.9    +      -       -      +
     90C  MET*     2.8    38.7    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
     83C  LEU*     3.0    43.2    +      -       +      +
     84C  LEU*     4.0     5.8    -      -       +      +
     85C  ARG      3.3     0.6    -      -       -      -
     86C  ALA*     1.3    75.3    -      -       +      +
     88C  CYS*     1.3    60.9    +      -       -      +
     90C  MET*     3.8     9.4    -      -       +      +
     91C  VAL*     2.9    45.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  PHE*     3.9    19.1    -      -       +      -
     10C  TRP*     5.5     5.4    -      -       -      -
     13C  ILE*     3.8    27.6    -      -       +      +
     84C  LEU*     3.1    38.4    +      -       -      +
     85C  ARG      3.0     4.5    +      -       -      +
     87C  ILE*     1.3    78.9    -      -       -      +
     89C  TYR*     1.3    58.3    +      -       -      +
     91C  VAL*     3.5     7.8    -      -       -      +
     92C  ALA*     2.9    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  PHE      5.3     0.4    -      -       -      -
     12C  ALA*     3.6    15.9    -      -       +      +
     13C  ILE*     4.6    10.5    -      -       +      -
     16C  GLU*     3.7    29.8    -      -       +      -
     63C  SER*     2.9    39.8    +      -       -      -
     66C  HIS*     3.5    32.5    -      +       -      -
     72C  THR*     3.7     5.8    -      -       +      +
     81C  MET*     3.7     8.5    -      -       +      -
     85C  ARG*     2.6    58.7    +      -       +      +
     86C  ALA      3.2    10.1    -      -       -      +
     88C  CYS*     1.3    75.1    -      -       -      +
     90C  MET*     1.3    51.5    +      -       -      +
     92C  ALA*     3.2     6.5    +      -       -      +
     93C  GLN*     2.8    45.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69C  PRO*     3.5    35.7    -      -       +      +
     72C  THR*     4.0    10.1    -      -       +      -
     73C  PHE*     5.2     7.9    -      -       +      -
     86C  ALA*     2.8    24.4    +      -       -      +
     87C  ILE*     3.8     9.2    -      -       -      +
     89C  TYR*     1.3    73.4    -      -       -      +
     91C  VAL*     1.3    60.8    +      -       +      +
     93C  GLN*     3.3    18.5    -      -       -      +
     94C  LEU*     2.8    42.1    +      -       +      +
    205C  TRP*     4.4    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  ILE*     2.9    39.6    +      -       +      +
     88C  CYS*     3.5     7.9    -      -       -      +
     90C  MET*     1.3    75.9    -      -       +      +
     92C  ALA*     1.3    65.1    +      -       -      +
     94C  LEU*     3.3     6.6    +      -       +      +
     95C  LEU*     3.0    47.4    +      -       +      +
----------------------------------------------------------
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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
----------------------------------------------------------
     13C  ILE*     3.5    35.7    -      -       +      +
     16C  GLU*     4.2     4.3    -      -       +      -
     17C  PHE*     3.5    23.9    -      -       +      +
     88C  CYS      2.9    17.9    +      -       -      +
     89C  TYR*     3.5     5.2    -      -       -      +
     91C  VAL*     1.3    78.9    -      -       -      +
     93C  GLN*     1.3    52.1    +      -       -      +
     95C  LEU*     4.9     1.6    -      -       -      -
     96C  GLY*     2.7    32.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  GLU*     3.1    25.9    -      -       +      +
     20C  SER*     3.3    24.9    -      -       -      +
     66C  HIS*     3.6     2.6    -      -       -      +
     67C  VAL*     4.0     3.8    -      -       -      -
     68C  ASN      3.6     8.3    -      -       -      +
     69C  PRO*     3.0    46.4    -      -       +      +
     72C  THR*     2.9    20.6    +      -       -      -
     89C  TYR*     2.8    29.7    +      -       -      +
     90C  MET*     3.3    12.4    -      -       -      +
     92C  ALA*     1.3    72.1    -      -       -      +
     94C  LEU*     1.3    58.8    +      -       -      +
     97C  ALA*     2.8    30.8    +      -       -      +
    186C  ALA*     3.8     5.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69C  PRO*     4.5     4.5    -      -       +      -
     90C  MET*     2.8    32.7    +      -       +      +
     91C  VAL*     3.8     6.3    -      -       +      +
     93C  GLN*     1.3    74.3    -      -       -      +
     95C  LEU*     1.3    70.9    +      -       +      +
     97C  ALA*     3.5     2.3    +      -       -      +
     98C  VAL*     3.0    32.0    +      -       -      +
    186C  ALA*     3.9    24.2    -      -       +      -
    189C  PHE*     3.8    31.7    -      -       +      -
    205C  TRP*     3.9    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  PHE*     3.8    18.1    -      -       +      -
     91C  VAL*     3.0    39.7    +      -       +      +
     92C  ALA*     4.2     1.8    -      -       -      +
     94C  LEU*     1.3    81.8    -      -       +      +
     96C  GLY*     1.3    66.4    +      -       -      +
     98C  VAL*     3.4     6.9    +      -       +      +
     99C  ALA*     2.9    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  PHE*     3.5    29.3    -      -       -      -
     20C  SER*     4.0     1.6    -      -       -      -
     21C  LEU*     3.0    17.5    -      -       -      +
     92C  ALA      2.7    21.2    +      -       -      -
     93C  GLN      3.7     0.9    -      -       -      -
     94C  LEU      3.2     0.2    -      -       -      -
     95C  LEU*     1.3    77.6    -      -       -      +
     97C  ALA*     1.3    60.9    +      -       -      +
     99C  ALA*     3.3     0.7    +      -       -      +
    100C  GLY      3.0    18.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  SER*     3.8     2.8    -      -       -      +
     24C  VAL*     3.4    30.1    -      -       +      +
     93C  GLN      2.8    18.1    +      -       -      +
     94C  LEU*     3.8     4.0    -      -       -      +
     95C  LEU      3.3     0.2    -      -       -      -
     96C  GLY*     1.3    75.2    -      -       -      +
     98C  VAL*     1.3    64.7    +      -       -      +
    100C  GLY*     2.9     3.3    +      -       -      -
    101C  ALA*     2.8    23.0    +      -       -      +
    186C  ALA*     3.3    31.2    -      -       +      +
    189C  PHE*     6.0     0.2    -      -       +      -
    190C  ALA*     3.6     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  LEU      3.0    19.4    +      -       -      +
     95C  LEU*     3.7     7.9    -      -       +      +
     97C  ALA*     1.3    74.5    -      -       -      +
     99C  ALA*     1.3    59.9    +      -       -      +
    101C  ALA*     3.3     3.5    +      -       -      +
    102C  ALA*     2.8    28.6    +      -       +      +
    189C  PHE*     3.9    27.8    -      -       +      -
    190C  ALA*     3.7    10.3    -      -       -      +
    193C  ILE*     4.1    14.4    -      -       +      -
    194C  LEU*     3.8    20.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  PHE*     4.4    11.0    -      -       +      -
     21C  LEU*     4.0    16.8    -      -       +      -
     95C  LEU      2.9    18.3    +      -       -      +
     96C  GLY      3.6     4.7    -      -       -      +
     98C  VAL*     1.3    77.7    -      -       -      +
    100C  GLY*     1.3    53.2    +      -       -      +
    102C  ALA*     2.9     8.9    +      -       -      +
    103C  VAL*     2.7    42.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21C  LEU*     3.5    37.3    -      -       -      +
     25C  PHE*     3.4    14.0    -      -       -      -
     96C  GLY      3.0     8.2    +      -       -      -
     97C  ALA      2.9     6.4    +      -       -      -
     99C  ALA*     1.3    76.2    -      -       -      +
    101C  ALA*     1.3    58.2    +      -       -      +
    103C  VAL*     4.6     0.9    -      -       -      -
    104C  LEU*     2.9    30.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  VAL*     4.0     1.4    -      -       -      +
     28C  LEU*     3.9    20.0    -      -       +      -
     97C  ALA      2.8    14.5    +      -       -      +
     98C  VAL      3.5     1.3    -      -       -      +
    100C  GLY*     1.3    75.2    -      -       -      +
    102C  ALA*     1.3    57.3    +      -       -      +
    104C  LEU*     3.3     8.6    -      -       -      +
    105C  TYR*     2.9    28.4    +      -       -      +
    116C  LEU*     4.3     8.4    -      -       +      +
    190C  ALA*     3.8    21.5    -      -       +      +
    194C  LEU*     3.5    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  VAL*     2.8    17.3    +      -       +      +
     99C  ALA*     3.1    13.2    -      -       -      +
    101C  ALA*     1.3    74.4    -      -       -      +
    103C  VAL*     1.3    67.5    +      -       +      +
    105C  TYR*     3.0     8.9    +      -       -      +
    106C  SER*     2.9    22.8    +      -       -      -
    194C  LEU*     3.6    13.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132B  ILE*     4.6     2.7    -      -       +      -
    136B  PHE*     3.5    37.7    -      -       +      -
     21C  LEU*     4.9     5.6    -      -       +      -
     25C  PHE*     3.9    13.4    -      -       +      -
     99C  ALA*     2.7    30.1    +      -       +      +
    100C  GLY*     4.0     4.9    -      -       -      +
    102C  ALA*     1.3    73.4    -      -       +      +
    104C  LEU*     1.3    60.1    +      -       -      +
    106C  SER*     2.7    26.4    +      -       -      +
    107C  VAL*     3.2    17.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  PHE*     3.9    11.9    -      -       +      -
    178B  TYR*     3.6    24.0    -      -       +      +
     25C  PHE*     3.5    26.0    -      -       +      +
     28C  LEU*     4.0    22.9    -      -       +      -
     29C  GLY*     3.8    14.6    -      -       -      +
     32C  LEU*     4.1    11.0    -      -       +      -
    100C  GLY      2.9    19.4    +      -       -      +
    101C  ALA*     3.3     6.5    -      -       -      +
    103C  VAL*     1.3    75.5    -      -       -      +
    105C  TYR*     1.3    55.6    +      -       -      +
    107C  VAL*     3.2     3.3    +      -       +      +
    108C  THR*     2.7    35.5    +      -       -      +
    116C  LEU*     3.6    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  ALA      2.9    13.8    +      -       -      +
    102C  ALA*     3.0    11.6    +      -       -      +
    104C  LEU*     1.3    77.5    -      -       -      +
    106C  SER*     1.3    67.9    +      -       -      +
    108C  THR*     3.2    21.7    +      -       -      +
    113C  ARG*     3.1    61.5    +      -       -      -
    116C  LEU*     4.2    25.4    -      -       +      -
    194C  LEU*     5.5     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 106 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  GLN*     2.6    29.2    +      -       -      +
    132B  ILE*     5.5     2.1    -      -       -      +
    102C  ALA      2.9    11.6    +      -       -      -
    103C  VAL*     2.7    24.8    +      -       -      +
    105C  TYR*     1.3    84.7    -      -       -      +
    107C  VAL*     1.3    57.1    +      -       -      +
    108C  THR      3.5     0.2    -      -       -      -
    113C  ARG*     4.8     2.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 107 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125B  VAL*     4.6     1.7    -      -       -      +
    129B  GLN*     2.8    53.1    +      -       +      +
    132B  ILE*     3.6    33.7    -      -       +      -
    133B  VAL*     3.1    21.5    -      -       +      -
    178B  TYR*     3.7    13.0    -      -       +      -
     25C  PHE*     5.2     5.6    -      -       +      -
    103C  VAL*     3.3    18.8    -      -       +      +
    104C  LEU*     3.2     5.6    +      -       +      +
    106C  SER*     1.3    83.8    -      -       -      +
    108C  THR*     1.3    60.4    +      -       -      +
    109C  PRO*     4.0     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 108 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  GLN*     4.5     3.9    +      -       -      -
    178B  TYR*     3.5    22.0    +      -       -      -
     32C  LEU*     3.6    16.0    -      -       +      +
    104C  LEU*     2.7    29.7    +      -       +      +
    105C  TYR*     3.2    17.0    -      -       -      +
    107C  VAL*     1.3    79.9    -      -       -      +
    109C  PRO*     1.3    74.0    +      -       -      +
    112C  VAL*     4.0     4.5    -      -       -      +
    113C  ARG*     2.8    48.3    +      -       +      +
    116C  LEU*     4.8     0.9    -      -       +      -
----------------------------------------------------------
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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