Contacts of the helix formed by residues 69 - 97 (chain E) in PDB entry 5LSJ


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 GLN 69 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  LYS      5.5     2.1    -      -       -      +
     47C  LEU*     5.9     0.2    -      -       -      +
     50C  ILE*     4.9    15.8    -      -       -      +
     65E  PHE*     4.7     8.9    -      -       +      -
     67E  GLN      4.0     0.2    +      -       -      -
     68E  LEU*     1.3    99.7    -      -       -      +
     70E  PRO*     1.3    70.2    -      -       -      +
     71E  ALA*     3.1     8.7    +      -       +      +
     72E  MET*     3.4    25.1    +      -       +      +
     73E  THR*     3.5    11.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 70 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55E  TYR*     3.3    19.9    +      -       -      -
     66E  TYR*     3.3    45.3    -      -       +      +
     67E  GLN*     4.1     9.4    -      -       -      +
     68E  LEU      3.8     0.4    -      -       -      -
     69E  GLN*     1.3    88.9    -      -       -      +
     71E  ALA*     1.3    59.9    +      -       -      +
     72E  MET      3.5     0.2    -      -       -      -
     73E  THR*     4.0     2.5    -      -       -      +
     74E  GLN*     3.7     4.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 71 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69E  GLN*     3.1     3.6    -      -       +      -
     70E  PRO*     1.3    78.7    -      -       -      +
     72E  MET*     1.3    65.1    +      -       -      +
     73E  THR      3.3     0.2    -      -       -      -
     74E  GLN*     3.4     6.9    +      -       -      +
     75E  GLN*     3.1    20.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 72 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  VAL*     5.3     1.1    -      -       +      -
     46C  LYS*     3.6    49.1    -      -       +      -
     65E  PHE*     4.8    11.2    -      -       +      -
     69E  GLN*     3.4    20.9    +      -       +      +
     71E  ALA*     1.3    76.1    -      -       -      +
     73E  THR*     1.3    66.2    +      -       -      +
     75E  GLN*     3.0    25.5    +      -       -      +
     76E  ILE*     2.9    52.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 73 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55E  TYR*     3.6    24.0    -      -       +      +
     58E  PHE*     4.0    16.2    -      -       +      -
     59E  THR*     4.1     6.5    -      -       +      -
     62E  TYR*     5.6     4.3    -      -       +      -
     65E  PHE*     3.2    38.3    +      -       +      -
     66E  TYR*     3.9    22.5    -      -       +      -
     69E  GLN      3.5     9.7    +      -       -      -
     70E  PRO      4.0     5.4    -      -       -      -
     71E  ALA      3.3     0.6    -      -       -      -
     72E  MET*     1.3    76.8    -      -       -      +
     74E  GLN*     1.3    56.1    +      -       -      +
     76E  ILE*     3.4     2.9    +      -       -      +
     77E  TYR*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 74 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55E  TYR*     3.1    48.4    +      -       +      +
     70E  PRO      3.7     4.2    +      -       -      +
     71E  ALA*     3.4     9.0    +      -       -      +
     72E  MET      3.2     0.6    -      -       -      -
     73E  THR*     1.3    73.9    -      -       -      +
     75E  GLN*     1.3    63.6    +      -       -      +
     77E  TYR*     4.3     3.4    -      -       -      -
     78E  ASP*     2.8    72.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 75 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71E  ALA      3.1    13.5    +      -       -      +
     72E  MET*     3.0    32.9    +      -       -      +
     74E  GLN*     1.3    80.8    +      -       -      +
     76E  ILE*     1.3    72.3    +      -       +      +
     78E  ASP*     3.2     6.3    +      -       -      +
     79E  LYS*     2.9    39.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 76 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  VAL*     3.5    33.7    -      -       +      +
     42C  VAL*     3.6    35.4    -      -       +      -
     43C  ILE*     4.5    10.8    -      -       +      -
     58E  PHE*     5.7     0.9    -      -       +      -
     65E  PHE*     5.6     2.9    -      -       +      -
     72E  MET*     2.9    37.1    +      -       +      +
     73E  THR*     4.1     3.8    -      -       -      +
     75E  GLN*     1.3    88.3    -      -       +      +
     77E  TYR*     1.3    61.1    +      -       -      +
     79E  LYS*     3.9    12.2    -      -       +      +
     80E  PHE*     2.9    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 77 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50E  VAL*     4.5     2.9    +      -       -      +
     53E  GLY      2.7    29.5    +      -       -      -
     54E  SER*     3.5     3.3    -      -       -      -
     55E  TYR*     3.4    36.5    +      +       +      -
     58E  PHE*     3.5    45.4    -      +       +      -
     73E  THR      2.9    19.4    +      -       -      +
     74E  GLN*     3.8     4.0    -      -       -      +
     76E  ILE*     1.3    78.1    -      -       -      +
     78E  ASP*     1.3    70.8    +      -       -      +
     80E  PHE*     3.2    19.3    +      +       -      +
     81E  ILE*     2.9    56.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 78 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74E  GLN*     2.8    60.0    +      -       -      +
     75E  GLN*     3.5     6.7    -      -       -      +
     77E  TYR*     1.3    87.0    -      -       -      +
     79E  LYS*     1.3    64.0    +      -       +      +
     81E  ILE*     3.3    10.6    -      -       -      +
     82E  ALA*     2.9    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 79 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  VAL*     6.1     3.4    -      -       -      +
     75E  GLN*     2.9    32.1    +      -       +      +
     76E  ILE*     3.9    15.3    -      -       +      +
     78E  ASP*     1.3    75.6    -      -       +      +
     80E  PHE*     1.3    63.3    +      -       -      +
     82E  ALA*     4.0     4.4    -      -       -      +
     83E  GLN*     2.9    42.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 80 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  LEU*     5.3     4.7    -      -       +      -
     35C  VAL*     3.3    38.4    -      -       +      +
     36C  MET*     3.4    36.6    -      -       +      -
     39C  VAL*     4.6    11.7    -      -       +      -
     67C  PHE*     4.1    19.5    -      +       -      -
     71C  MET*     4.9    11.9    -      -       +      -
     53E  GLY      5.2     0.9    -      -       -      -
     58E  PHE*     5.5     1.8    -      +       +      -
     76E  ILE      2.9    20.1    +      -       -      +
     77E  TYR*     3.2    27.8    +      +       -      +
     79E  LYS*     1.3    76.5    -      -       -      +
     81E  ILE*     1.3    84.0    +      -       +      +
     84E  LEU*     2.9    50.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 81 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50E  VAL*     3.4    51.4    -      -       +      +
     52E  ALA      5.2     0.2    -      -       -      +
     53E  GLY      4.5     2.7    -      -       -      +
     77E  TYR*     2.9    47.7    +      -       +      +
     78E  ASP*     3.3    16.2    -      -       -      +
     80E  PHE*     1.3    89.9    -      -       +      +
     82E  ALA*     1.3    68.9    +      -       +      +
     84E  LEU*     3.4     9.3    +      -       +      +
     85E  GLN*     3.0    34.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 82 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78E  ASP      2.9    19.1    +      -       -      +
     79E  LYS*     4.0     3.6    -      -       -      +
     81E  ILE*     1.3    79.3    -      -       +      +
     83E  GLN*     1.3    59.1    +      -       -      +
     84E  LEU      3.2     0.3    +      -       -      -
     85E  GLN*     3.3    16.1    +      -       -      +
     86E  THR*     2.9    36.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 83 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  GLU*     5.9     1.2    +      -       -      -
     35C  VAL*     4.5    16.1    -      -       +      +
     38C  ALA*     5.7     7.9    -      -       -      +
     79E  LYS*     2.9    31.9    +      -       -      +
     80E  PHE      4.3     0.9    -      -       -      +
     82E  ALA*     1.3    77.5    -      -       -      +
     84E  LEU*     1.3    56.5    +      -       -      +
     86E  THR*     3.6     7.4    -      -       -      +
     87E  SER*     2.9    37.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 84 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  TYR*     4.6     3.1    -      -       +      +
     32C  LEU*     4.0    39.7    -      -       +      +
     35C  VAL*     3.8    16.2    -      -       +      +
     71C  MET*     6.1     2.5    -      -       -      -
     46E  LEU*     5.6     4.0    -      -       +      -
     49E  LEU*     5.1    17.5    -      -       +      -
     50E  VAL*     5.7     5.2    -      -       +      -
     80E  PHE*     2.9    43.9    +      -       +      +
     81E  ILE*     3.5    12.1    -      -       +      +
     82E  ALA      3.1     0.2    -      -       -      -
     83E  GLN*     1.3    76.1    -      -       -      +
     85E  GLN*     1.3    67.2    +      -       +      +
     87E  SER*     3.3     3.3    +      -       -      -
     88E  ILE*     3.0    40.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 85 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46E  LEU*     3.6    23.2    -      -       +      +
     50E  VAL*     4.7    12.9    -      -       +      +
     81E  ILE*     3.0    36.2    +      -       -      +
     82E  ALA*     3.3    15.6    -      -       -      +
     84E  LEU*     1.3    79.2    -      -       +      +
     86E  THR*     1.3    68.1    +      -       +      +
     88E  ILE*     3.1    12.0    -      -       -      +
     89E  ARG*     2.9    51.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 86 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82E  ALA*     2.9    21.4    +      -       +      +
     83E  GLN*     3.6    11.3    +      -       -      +
     85E  GLN*     1.3    84.1    -      -       +      +
     87E  SER*     1.3    62.8    +      -       -      +
     89E  ARG*     4.1     8.7    -      -       -      +
     90E  GLU*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 87 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  TYR*     3.4    39.8    -      -       -      -
     34C  GLU*     4.9     1.4    +      -       -      -
     35C  VAL*     5.5     2.7    -      -       -      -
     83E  GLN*     2.9    27.5    +      -       -      -
     84E  LEU*     3.7     4.9    -      -       -      -
     86E  THR*     1.3    79.3    +      -       -      +
     88E  ILE*     1.3    56.3    -      -       -      +
     90E  GLU*     3.4     7.6    +      -       -      +
     91E  GLU*     3.0    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 88 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28C  PHE*     3.3    66.5    -      -       +      +
     31C  TYR*     4.4     7.0    -      -       +      -
     75C  PHE*     5.1     3.1    -      -       +      -
     42E  VAL*     6.5     0.9    -      -       +      -
     45E  PHE*     4.1    13.7    -      -       +      -
     46E  LEU*     3.4    30.7    -      -       +      -
     49E  LEU*     5.5     2.2    -      -       +      -
     84E  LEU*     3.0    27.8    +      -       +      +
     85E  GLN      3.1    13.5    -      -       -      +
     87E  SER*     1.3    75.4    -      -       -      +
     89E  ARG*     1.3    64.4    +      -       +      +
     91E  GLU*     3.0    20.8    +      -       -      +
     92E  ILE*     3.0    13.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 89 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42E  VAL*     5.5     6.7    -      -       +      -
     43E  ASP*     2.9    35.1    +      -       -      +
     46E  LEU*     3.3    28.3    -      -       +      +
     47E  GLN*     5.7     4.0    -      -       -      +
     85E  GLN*     2.9    37.2    +      -       -      +
     86E  THR*     4.1     8.5    -      -       -      +
     88E  ILE*     1.3    73.6    -      -       +      +
     90E  GLU*     1.3    66.2    +      -       -      +
     92E  ILE*     3.1    18.0    -      -       +      +
     93E  SER*     3.0    27.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 90 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150B  ARG*     5.2     9.1    +      -       -      +
     31C  TYR*     6.0     0.2    -      -       -      -
     86E  THR      2.9    21.9    +      -       -      +
     87E  SER*     3.4     9.2    -      -       -      +
     88E  ILE      3.3     0.2    -      -       -      -
     89E  ARG*     1.3    75.6    -      -       -      +
     91E  GLU*     1.3    56.2    +      -       -      +
     93E  SER*     3.6     9.4    +      -       -      -
     94E  ASP*     2.7    48.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 91 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  ILE*     5.8     2.6    -      -       +      -
     27C  ALA*     3.8    26.9    -      -       +      +
     28C  PHE*     3.9    18.8    -      -       +      -
     31C  TYR*     3.1    38.1    +      -       +      -
     87E  SER      3.0     5.8    +      -       -      +
     88E  ILE*     3.0    12.9    +      -       -      +
     90E  GLU*     1.3    75.8    -      -       -      +
     92E  ILE*     1.3    61.3    +      -       -      +
     94E  ASP*     2.7    29.7    +      -       -      +
     95E  ILE*     3.0    32.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 92 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  ILE*     5.2     6.1    -      -       +      -
     28C  PHE*     3.7    28.7    -      -       +      -
     86C  PHE*     5.9     2.5    -      -       +      -
     38E  LEU*     5.4     5.6    -      -       +      -
     39E  ASP*     3.6    23.8    -      -       -      +
     42E  VAL*     3.8    31.9    -      -       +      -
     88E  ILE      3.0     5.9    +      -       -      +
     89E  ARG*     3.1    27.6    -      -       +      +
     91E  GLU*     1.3    75.2    -      -       +      +
     93E  SER*     1.3    76.7    +      -       -      +
     95E  ILE*     3.1    20.4    -      -       +      +
     96E  LYS*     3.0    37.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 93 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89E  ARG      3.0    18.9    +      -       -      -
     90E  GLU*     3.9    11.7    -      -       -      -
     92E  ILE*     1.3    85.7    -      -       -      +
     94E  ASP*     1.3    63.3    +      -       -      +
     96E  LYS*     3.6    12.5    +      -       -      +
     97E  GLU*     3.4    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 94 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150B  ARG*     2.7    51.6    +      -       -      +
    154B  LYS*     5.7     4.5    -      -       -      +
     31C  TYR*     4.7     4.5    +      -       -      -
     90E  GLU*     2.7    36.5    +      -       -      +
     91E  GLU*     2.7    31.9    +      -       -      +
     93E  SER*     1.3    79.4    -      -       -      +
     95E  ILE*     1.3    58.0    +      -       +      +
     97E  GLU*     3.5     3.5    +      -       -      +
     98E  GLU*     3.4    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 95 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  ARG*     6.4     2.0    -      -       +      -
     24C  ILE*     4.6    28.7    -      -       +      -
     38E  LEU*     5.6     5.2    -      -       +      -
     91E  GLU*     3.0    31.2    +      -       +      +
     92E  ILE*     3.1    32.1    -      -       +      +
     94E  ASP*     1.3    75.1    -      -       +      +
     96E  LYS*     1.3    68.1    +      -       +      +
     97E  GLU      3.3     0.2    -      -       -      -
     98E  GLU*     3.1    29.3    -      -       +      +
    101E  LEU*     3.9    15.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 96 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35E  VAL*     3.8    23.9    -      -       +      +
     36E  LYS*     5.4     0.4    -      -       -      +
     38E  LEU*     3.7    23.6    -      -       +      -
     39E  ASP*     3.3    30.9    +      -       -      -
     92E  ILE*     3.0    30.4    +      -       +      +
     93E  SER*     4.0    13.2    +      -       -      +
     94E  ASP      3.3     0.4    -      -       -      -
     95E  ILE*     1.3    83.9    -      -       +      +
     97E  GLU*     1.3    59.3    +      -       +      +
     98E  GLU      3.4     0.2    -      -       -      -
    100E  ASN      4.0     0.2    +      -       -      -
    101E  LEU*     3.2    23.5    +      -       +      -
    102E  GLU*     2.8    39.3    -      -       -      +
    105E  LEU*     6.0     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 97 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143B  GLN*     5.6     3.6    -      -       -      +
    147B  THR*     4.4     7.6    +      -       -      -
    150B  ARG*     4.1    23.3    +      -       -      +
     93E  SER*     3.4    23.0    +      -       -      +
     94E  ASP*     3.5     4.8    +      -       -      +
     95E  ILE      3.3     0.2    -      -       -      -
     96E  LYS*     1.3    78.5    -      -       +      +
     98E  GLU*     1.3    66.4    +      -       -      +
     99E  GLY      3.5     1.1    -      -       -      -
    100E  ASN      4.4     4.0    +      -       -      +
    102E  GLU*     4.6    11.7    -      -       -      +
----------------------------------------------------------
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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