Contacts of the helix formed by residues 79 - 105 (chain D) in PDB entry 5OMA


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with PRO 79 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78D  GLY*     1.4    78.5    -      -       -      +
     80D  GLU*     1.4    75.6    +      -       -      +
     81D  VAL      3.3     2.9    -      -       -      -
     82D  ARG*     3.3    34.8    +      -       +      +
     83D  GLU*     3.2    35.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 80 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      0B  HIS*     5.6     2.4    -      -       +      +
      5B  SER*     2.9    45.9    +      -       -      +
      8B  GLN*     2.8    39.0    +      -       -      +
      9B  LYS*     3.4    29.6    -      -       +      +
     12B  LEU*     4.3     3.0    -      -       +      +
     78D  GLY*     3.2    16.4    -      -       -      -
     79D  PRO*     1.4    87.3    -      -       -      +
     81D  VAL*     1.4    61.7    +      -       -      +
     83D  GLU*     3.5     6.5    +      -       -      +
     84D  TYR*     3.2    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  GLN*     4.1    17.3    -      -       -      +
     12B  LEU*     4.0    19.3    -      -       +      -
     62D  LEU*     3.9    15.3    -      -       +      +
     65D  ILE*     4.1    17.5    -      -       +      -
     66D  GLU*     3.9    38.4    -      -       +      +
     69D  SER*     5.6     6.1    -      -       -      +
     78D  GLY      4.1    11.4    -      -       -      +
     79D  PRO      3.3     0.2    -      -       -      -
     80D  GLU*     1.4    72.5    -      -       -      +
     82D  ARG*     1.4    58.9    +      -       -      +
     84D  TYR*     3.4     2.6    +      -       -      +
     85D  ARG*     2.9    32.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66D  GLU*     3.4    29.0    +      -       +      +
     79D  PRO*     3.3    35.8    +      -       +      +
     81D  VAL*     1.4    75.4    -      -       -      +
     83D  GLU*     1.3    68.2    +      -       -      +
     85D  ARG*     3.2    10.8    +      -       -      +
     86D  GLU*     2.9    64.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 83 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      0B  HIS*     3.2    47.2    -      -       +      +
      9B  LYS*     2.8    38.8    +      -       -      +
     79D  PRO*     3.2    26.2    +      -       +      +
     80D  GLU*     3.7     9.9    +      -       -      +
     81D  VAL      3.4     0.2    -      -       -      -
     82D  ARG*     1.3    86.6    +      -       -      +
     84D  TYR*     1.3    57.4    +      -       -      +
     86D  GLU*     3.5    14.2    +      -       -      +
     87D  LYS*     3.1    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 84 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9B  LYS*     4.3    14.3    -      -       +      +
     12B  LEU*     4.1    16.6    -      -       +      -
     13B  ALA*     3.5    28.9    -      -       +      +
     16B  ALA*     4.7     2.9    -      -       +      -
     18B  ARG*     3.2    22.1    -      -       -      +
     21B  ASP*     3.0    32.8    +      -       -      +
     25B  PHE*     3.9    24.5    -      +       -      -
     62D  LEU*     3.7    31.0    -      -       +      -
     80D  GLU      3.2    14.4    +      -       -      +
     81D  VAL      4.0     2.7    -      -       -      +
     83D  GLU*     1.3    76.0    -      -       -      +
     85D  ARG*     1.3    65.8    +      -       -      +
     87D  LYS*     3.2    17.8    +      -       +      -
     88D  VAL*     3.1    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 85 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59D  TRP*     3.4    32.4    -      -       +      +
     62D  LEU*     3.9    31.2    -      -       +      +
     63D  SER*     4.0    12.7    +      -       -      +
     66D  GLU*     2.7    40.7    +      -       -      +
     81D  VAL      2.9    18.2    +      -       -      +
     82D  ARG*     3.7    16.9    -      -       -      +
     84D  TYR*     1.3    75.8    -      -       -      +
     86D  GLU*     1.4    78.3    +      -       -      +
     88D  VAL*     3.5     3.1    +      -       -      +
     89D  GLU*     2.8    61.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 86 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82D  ARG*     2.9    54.1    +      -       -      +
     83D  GLU*     3.5    13.0    -      -       -      +
     85D  ARG*     1.4    92.6    +      -       -      +
     87D  LYS*     1.4    56.1    +      -       -      +
     89D  GLU*     3.3     9.3    +      -       -      +
     90D  THR*     2.8    39.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 87 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  ARG*     4.1     0.9    -      -       -      +
     21B  ASP*     3.4    34.2    +      -       -      +
     24B  ALA*     6.1     2.0    -      -       -      +
     25B  PHE*     5.1     7.9    -      -       +      -
     83D  GLU      3.1    13.8    +      -       -      +
     84D  TYR*     3.2    28.8    +      -       +      +
     86D  GLU*     1.4    76.2    -      -       -      +
     88D  VAL*     1.3    62.5    -      -       -      +
     90D  THR*     3.6     5.8    -      -       -      -
     91D  GLU*     3.1    41.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 88 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  ARG*     4.1    32.5    -      -       +      +
     55D  GLN*     3.7    28.5    -      -       +      +
     58D  ALA*     4.4     6.1    -      -       +      -
     59D  TRP*     3.9    20.2    -      -       +      +
     62D  LEU*     3.7    19.1    -      -       +      -
     84D  TYR*     3.1    22.3    +      -       +      +
     85D  ARG      3.8     6.5    -      -       -      +
     87D  LYS*     1.3    73.4    -      -       -      +
     89D  GLU*     1.3    62.8    +      -       -      +
     91D  GLU*     3.3     9.0    +      -       -      +
     92D  LEU*     3.1    22.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 89 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59D  TRP*     3.0    33.9    +      -       -      +
     85D  ARG*     2.8    46.8    +      -       -      +
     86D  GLU*     3.4     7.7    -      -       -      +
     88D  VAL*     1.3    75.4    -      -       -      +
     90D  THR*     1.4    56.9    +      -       -      +
     92D  LEU*     3.3     9.3    +      -       -      +
     93D  GLN*     3.0    53.4    +      -       -      +
    134D  VAL*     3.9    18.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 90 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86D  GLU*     2.8    22.8    +      -       -      +
     87D  LYS*     3.6     7.0    -      -       -      -
     89D  GLU*     1.4    71.8    -      -       -      +
     91D  GLU*     1.3    65.6    +      -       -      +
     93D  GLN*     3.4    15.4    +      -       -      +
     94D  GLY*     3.2    19.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 91 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  ARG*     2.8    39.9    +      -       -      +
     21B  ASP*     5.3     0.2    -      -       -      +
     55D  GLN*     3.5    17.1    +      -       -      +
     87D  LYS*     3.1    28.4    +      -       -      +
     88D  VAL*     3.4    11.2    -      -       -      +
     90D  THR*     1.3    75.2    -      -       -      +
     92D  LEU*     1.3    62.1    +      -       -      +
     94D  GLY*     3.4    10.6    +      -       -      -
     95D  VAL*     3.4    18.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 92 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52D  VAL*     3.8    21.1    -      -       +      -
     55D  GLN*     3.5    31.1    -      -       +      +
     56D  ARG*     3.9    35.4    -      -       +      +
     59D  TRP*     4.4     7.9    -      -       +      -
     88D  VAL      3.1    12.3    +      -       -      +
     89D  GLU      3.3     9.6    -      -       -      +
     91D  GLU*     1.3    72.0    -      -       -      +
     93D  GLN*     1.3    68.2    +      -       +      +
     95D  VAL*     3.3     5.2    +      -       -      +
     96D  CYS*     3.2    29.2    +      -       -      -
    130D  TYR*     5.1    10.1    -      -       +      +
    131D  LEU*     5.7     1.8    -      -       +      -
    134D  VAL*     4.2    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 93 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89D  GLU*     3.0    35.2    +      -       -      +
     90D  THR*     3.6    16.1    +      -       -      +
     91D  GLU      3.4     0.2    -      -       -      -
     92D  LEU*     1.3    76.6    -      -       +      +
     94D  GLY*     1.3    56.7    +      -       -      +
     96D  CYS*     3.3     2.3    +      -       -      +
     97D  ASP*     2.9    42.1    +      -       -      +
    131D  LEU*     3.9    24.7    -      -       +      +
    134D  VAL*     3.6    26.5    -      -       +      +
    135D  ALA*     6.1     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 94 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90D  THR      3.2     9.8    +      -       -      -
     91D  GLU      3.4     5.1    +      -       -      -
     92D  LEU      3.3     0.2    -      -       -      -
     93D  GLN*     1.3    78.5    -      -       -      +
     95D  VAL*     1.4    50.7    +      -       -      +
     97D  ASP*     3.8     7.4    -      -       -      +
     98D  THR*     2.8    37.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 95 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  TYR*     4.0    25.4    -      -       +      +
     51D  VAL*     4.2    20.6    -      -       +      -
     52D  VAL*     4.3    17.0    -      -       +      -
     55D  GLN*     3.6    22.2    -      -       -      +
     91D  GLU*     3.4    14.0    +      -       +      +
     92D  LEU      3.3     9.0    +      -       -      +
     94D  GLY*     1.4    72.3    -      -       -      +
     96D  CYS*     1.3    59.2    +      -       -      +
     98D  THR*     3.2     7.9    +      -       -      +
     99D  VAL*     2.9    34.6    +      -       +      +
    127D  TYR*     5.2     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 96 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52D  VAL*     4.0    10.5    -      -       -      -
     92D  LEU*     3.2    33.6    +      -       -      +
     93D  GLN      3.3     2.0    +      -       -      +
     95D  VAL*     1.3    74.1    -      -       -      +
     97D  ASP*     1.3    57.8    +      -       -      +
     99D  VAL*     3.3     1.9    +      -       -      +
    100D  LEU*     2.9    36.1    +      -       -      +
    127D  TYR*     3.9    30.5    -      -       +      +
    130D  TYR*     3.9    14.8    -      -       -      -
    131D  LEU*     3.6    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 97 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93D  GLN*     2.9    28.9    +      -       -      +
     94D  GLY*     3.8     7.7    +      -       -      +
     96D  CYS*     1.3    74.3    -      -       -      +
     98D  THR*     1.4    53.4    +      -       -      +
    100D  LEU*     3.8     6.2    -      -       -      +
    101D  GLY*     2.8    31.9    +      -       -      -
    131D  LEU*     4.0    18.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 98 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  LYS*     3.7    30.7    -      -       +      -
     48D  TYR*     3.9    20.2    -      -       +      +
     94D  GLY      2.8    19.3    +      -       -      -
     95D  VAL*     3.2    12.5    +      -       -      +
     97D  ASP*     1.4    72.4    -      -       -      +
     99D  VAL*     1.3    58.1    -      -       -      +
    101D  GLY*     3.4     2.3    +      -       -      -
    102D  LEU*     2.9    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 99 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  TYR*     3.3    37.5    -      -       +      -
     95D  VAL*     2.9    20.9    +      -       +      +
     96D  CYS      3.7     5.8    -      -       -      +
     98D  THR*     1.3    75.3    -      -       -      +
    100D  LEU*     1.3    57.4    +      -       -      +
    102D  LEU*     3.0    11.4    +      -       -      +
    103D  LEU*     2.8    34.7    +      -       +      +
    123D  MET*     3.9    17.3    -      -       +      -
    127D  TYR*     3.7    46.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 100 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96D  CYS      2.9    20.8    +      -       -      +
     97D  ASP*     4.0     6.5    -      -       -      +
     99D  VAL*     1.3    73.8    -      -       -      +
    101D  GLY*     1.3    56.8    +      -       -      +
    103D  LEU*     3.9     6.0    -      -       +      +
    104D  ASP*     3.0    31.2    +      -       -      +
    124D  LYS*     3.5    51.1    +      -       +      +
    127D  TYR*     3.8    19.5    -      -       +      -
    128D  TYR*     3.8    26.9    -      -       +      +
    131D  LEU*     3.7    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 101 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97D  ASP      2.8    19.0    +      -       -      -
     98D  THR*     3.7     2.7    -      -       -      -
    100D  LEU*     1.3    77.4    -      -       -      +
    102D  LEU*     1.4    54.8    +      -       -      +
    104D  ASP*     4.7     2.0    -      -       -      -
    105D  SER*     2.9    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 102 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  LYS*     3.7    39.5    -      -       +      +
     30D  VAL*     3.8    24.5    -      -       +      +
     31D  GLU*     4.2    24.7    -      -       +      +
     44D  LEU*     5.2     6.1    -      -       +      -
     48D  TYR*     4.2    15.0    -      -       +      +
     98D  THR*     2.9    17.9    +      -       +      +
     99D  VAL*     3.4     9.4    -      -       -      +
    101D  GLY*     1.4    74.8    -      -       -      +
    103D  LEU*     1.4    64.5    +      -       +      +
    104D  ASP      3.3     0.4    -      -       -      -
    105D  SER      3.7    19.7    -      -       -      +
    106D  HIS      3.8     1.2    +      -       -      +
    107D  LEU*     3.3    25.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 103 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  LEU*     5.5     1.3    -      -       +      -
     99D  VAL*     2.8    38.6    +      -       +      +
    100D  LEU*     3.9     8.5    -      -       +      +
    102D  LEU*     1.4    71.8    -      -       +      +
    104D  ASP*     1.4    58.2    +      -       -      +
    107D  LEU*     3.2    14.5    -      -       +      +
    108D  ILE*     2.8    38.5    +      -       +      +
    120D  TYR*     3.9    39.9    -      -       +      +
    123D  MET*     3.9    20.9    -      -       +      +
    124D  LYS*     3.6    43.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 104 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100D  LEU      3.0    19.3    +      -       -      +
    101D  GLY*     4.1     4.3    -      -       -      +
    103D  LEU*     1.4    78.3    -      -       -      +
    105D  SER*     1.3    64.7    +      -       -      +
    106D  HIS*     3.3     3.0    -      -       -      -
    108D  ILE*     4.0     5.4    -      -       -      +
    109D  LYS*     3.2    59.9    +      -       -      +
    124D  LYS*     2.9    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 105 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101D  GLY*     2.9    22.9    +      -       -      +
    102D  LEU*     3.7    14.0    -      -       -      +
    104D  ASP*     1.3    83.4    +      -       -      +
    106D  HIS*     1.3    69.7    +      -       -      +
    109D  LYS*     5.3     1.6    -      -       -      -
----------------------------------------------------------
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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