Contacts of the helix formed by residues 835 - 869 (chain A) in PDB entry 3HRO


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 835 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834A  VAL*     1.3    75.8    -      -       -      +
    836A  TYR*     1.3    63.9    +      -       -      +
    837A  GLU*     3.9    11.8    +      -       -      +
    838A  GLU*     2.8    33.7    +      -       -      +
    839A  PHE*     3.1    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 836 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834A  VAL      4.1     0.2    +      -       -      -
    835A  SER*     1.3    73.2    -      -       -      +
    837A  GLU*     1.3    72.5    +      -       +      +
    839A  PHE*     3.2     8.9    +      +       -      +
    840A  GLN*     2.8    71.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 837 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    835A  SER*     3.3    10.7    +      -       -      +
    836A  TYR*     1.3    94.1    -      -       +      +
    838A  GLU*     1.3    63.8    +      -       -      +
    840A  GLN*     3.3     4.2    +      -       -      +
    841A  VAL*     3.2    25.4    +      -       -      +
    844A  ARG*     4.5     1.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 838 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834A  VAL*     3.2    24.9    -      -       +      +
    835A  SER*     2.8    39.7    +      -       -      +
    837A  GLU*     1.3    79.3    -      -       -      +
    839A  PHE*     1.3    65.0    +      -       -      +
    841A  VAL*     3.2    23.7    +      -       -      +
    842A  LEU*     3.4     6.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 839 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834A  VAL*     4.3    12.6    -      -       +      -
    835A  SER      3.1    14.2    +      -       -      +
    836A  TYR*     3.2     9.4    +      +       -      +
    838A  GLU*     1.3    82.8    -      -       -      +
    840A  GLN*     1.3    73.6    +      -       -      +
    842A  LEU*     3.0    26.0    +      -       +      +
    843A  VAL*     3.0    38.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 840 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    836A  TYR*     2.8    64.3    +      -       +      +
    837A  GLU*     3.8     4.9    -      -       -      +
    839A  PHE*     1.3    82.4    -      -       -      +
    841A  VAL*     1.3    67.3    +      -       -      +
    843A  VAL*     3.7    24.8    -      -       -      +
    844A  ARG*     2.9    41.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 841 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    837A  GLU      3.2    16.3    +      -       -      +
    838A  GLU*     3.2    13.7    +      -       -      +
    840A  GLN*     1.3    76.5    -      -       -      +
    842A  LEU*     1.3    65.1    +      -       +      +
    844A  ARG*     3.5    32.1    +      -       -      +
    845A  ARG*     3.1    22.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 842 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    838A  GLU      3.4     5.9    +      -       -      +
    839A  PHE*     3.0    20.4    +      -       +      +
    841A  VAL*     1.3    81.1    -      -       +      +
    843A  VAL*     1.3    64.6    +      -       +      +
    845A  ARG*     3.2    13.1    +      -       +      +
    846A  VAL*     3.0    33.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 843 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    839A  PHE*     3.0    47.9    +      -       +      +
    840A  GLN*     3.3    24.4    +      -       -      +
    842A  LEU*     1.3    75.0    -      -       -      +
    844A  ARG*     1.3    64.5    +      -       +      +
    846A  VAL*     3.4     7.2    +      -       +      +
    847A  ASP*     3.0    25.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 844 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    837A  GLU      4.5     2.4    +      -       -      -
    840A  GLN*     2.9    25.5    +      -       -      +
    841A  VAL*     3.5    49.0    +      -       -      +
    843A  VAL*     1.3    77.8    -      -       +      +
    845A  ARG*     1.3    56.2    +      -       -      +
    847A  ASP*     3.4     7.5    +      -       -      +
    848A  ARG*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 845 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    841A  VAL*     3.1    14.3    +      -       +      +
    842A  LEU*     3.2    20.1    +      -       +      +
    844A  ARG*     1.3    77.3    -      -       -      +
    846A  VAL*     1.3    59.8    +      -       +      +
    848A  ARG*     2.9    54.4    +      -       -      +
    849A  MET*     2.9    45.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 846 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    842A  LEU*     3.0    30.4    +      -       +      +
    843A  VAL*     3.7     6.7    -      -       -      +
    845A  ARG*     1.3    71.8    -      -       +      +
    847A  ASP*     1.3    69.6    +      -       -      +
    849A  MET*     3.1    15.5    +      -       -      +
    850A  GLU*     2.9    40.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 847 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    843A  VAL*     3.0    19.0    +      -       +      +
    844A  ARG*     3.7     7.2    -      -       -      +
    845A  ARG      3.3     0.2    -      -       -      -
    846A  VAL*     1.3    76.8    -      -       -      +
    848A  ARG*     1.3    65.4    +      -       -      +
    850A  GLU*     3.2    29.9    +      -       -      +
    851A  HIS*     3.3    47.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 848 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    844A  ARG      3.0    14.4    +      -       -      +
    845A  ARG*     2.9    59.6    +      -       -      +
    847A  ASP*     1.3    78.2    +      -       -      +
    849A  MET*     1.3    61.7    +      -       -      +
    851A  HIS*     3.0    28.3    +      -       +      +
    852A  SER*     3.0    23.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 849 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    845A  ARG*     2.9    43.5    +      -       -      +
    846A  VAL*     3.1    13.2    +      -       -      +
    848A  ARG*     1.3    78.8    -      -       -      +
    850A  GLU*     1.3    60.5    +      -       +      +
    852A  SER*     3.5    10.4    -      -       -      +
    853A  ILE*     2.8    43.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 850 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    846A  VAL*     2.9    32.3    +      -       +      +
    847A  ASP*     3.2    27.2    +      -       -      +
    849A  MET*     1.3    75.9    -      -       +      +
    851A  HIS*     1.3    64.2    +      -       +      +
    853A  ILE*     3.4    11.8    +      -       +      +
    854A  GLY*     3.0    24.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 851 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    847A  ASP*     3.3    44.7    +      -       -      -
    848A  ARG*     3.0    13.5    +      -       +      +
    850A  GLU*     1.3    81.4    -      -       +      +
    852A  SER*     1.3    64.5    +      -       -      +
    854A  GLY*     3.2     2.6    +      -       -      -
    855A  SER*     3.0    27.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 852 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    848A  ARG*     3.0    23.8    +      -       -      +
    849A  MET*     3.2    14.0    +      -       -      +
    851A  HIS*     1.3    77.2    -      -       -      +
    853A  ILE*     1.3    63.1    +      -       -      +
    855A  SER*     3.3     7.7    +      -       -      -
    856A  ILE*     3.1    33.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 853 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    849A  MET*     2.8    33.1    +      -       +      +
    850A  GLU*     3.7     9.0    -      -       +      +
    851A  HIS      3.2     0.2    -      -       -      -
    852A  SER*     1.3    75.7    -      -       -      +
    854A  GLY*     1.3    65.4    +      -       -      +
    856A  ILE*     3.3    12.8    +      -       +      +
    857A  VAL*     2.9    41.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 854 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    850A  GLU      3.0    14.7    +      -       -      -
    851A  HIS*     3.2     3.8    +      -       -      -
    853A  ILE*     1.3    77.3    -      -       -      +
    855A  SER*     1.3    62.5    +      -       -      +
    857A  VAL*     3.2     8.5    +      -       -      +
    858A  SER*     3.0    26.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 855 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    851A  HIS      3.0    14.1    +      -       -      -
    852A  SER*     3.7     9.2    -      -       -      -
    853A  ILE      3.2     0.4    -      -       -      -
    854A  GLY*     1.3    78.0    -      -       -      +
    856A  ILE*     1.3    56.4    +      -       -      +
    858A  SER*     3.2     8.1    +      -       -      -
    859A  LYS*     3.0    37.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 856 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    852A  SER*     3.1    25.6    +      -       -      +
    853A  ILE*     3.6    15.5    -      -       +      +
    855A  SER*     1.3    74.1    -      -       -      +
    857A  VAL*     1.3    63.9    +      -       +      +
    859A  LYS*     3.3    12.6    +      -       +      +
    860A  ILE*     2.9    34.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 857 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    853A  ILE*     2.9    35.3    +      -       +      +
    854A  GLY*     3.6     8.1    -      -       -      +
    856A  ILE*     1.3    78.3    -      -       +      +
    858A  SER*     1.3    58.5    +      -       -      +
    860A  ILE*     3.1    12.4    -      -       +      +
    861A  ASP*     3.0    46.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 858 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    854A  GLY      3.0    14.5    +      -       -      -
    855A  SER*     3.5    11.1    -      -       -      -
    857A  VAL*     1.3    78.8    -      -       -      +
    859A  LYS*     1.3    60.7    +      -       -      +
    861A  ASP*     3.5     5.3    +      -       -      +
    862A  ALA*     3.1    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 859 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    855A  SER*     3.0    23.2    +      -       -      +
    856A  ILE*     3.7    14.1    -      -       +      +
    858A  SER*     1.3    75.7    -      -       -      +
    860A  ILE*     1.3    64.4    +      -       -      +
    862A  ALA*     3.2     7.2    +      -       -      +
    863A  VAL*     3.0    27.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 860 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    856A  ILE*     2.9    22.7    +      -       +      +
    857A  VAL*     3.1    24.5    -      -       +      +
    859A  LYS*     1.3    76.9    -      -       -      +
    861A  ASP*     1.3    63.8    +      -       -      +
    863A  VAL*     3.3    18.1    +      -       +      -
    864A  ILE*     2.9    45.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 861 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    857A  VAL*     3.0    37.5    +      -       -      +
    858A  SER*     3.9     6.1    -      -       -      +
    859A  LYS      3.2     0.2    -      -       -      -
    860A  ILE*     1.3    83.7    -      -       -      +
    862A  ALA*     1.3    62.8    +      -       -      +
    864A  ILE*     3.4    17.6    +      -       -      +
    865A  VAL*     3.1    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 862 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    858A  SER      3.1    15.2    +      -       -      +
    859A  LYS*     3.5    11.0    -      -       -      +
    860A  ILE      3.2     0.2    -      -       -      -
    861A  ASP*     1.3    75.4    -      -       -      +
    863A  VAL*     1.3    64.9    +      -       +      +
    865A  VAL*     3.2     8.4    +      -       -      +
    866A  LYS*     3.1    38.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 863 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    859A  LYS*     3.0    16.8    +      -       +      +
    860A  ILE*     3.6    21.3    -      -       +      +
    862A  ALA*     1.3    74.5    -      -       +      +
    864A  ILE*     1.3    67.1    +      -       +      +
    866A  LYS*     3.1    24.5    +      -       +      +
    867A  LEU*     3.1    38.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 864 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    860A  ILE*     2.9    36.9    +      -       +      +
    861A  ASP*     3.6    20.2    -      -       -      +
    863A  VAL*     1.3    78.9    -      -       +      +
    865A  VAL*     1.3    64.3    +      -       +      +
    867A  LEU*     3.3     9.9    +      -       +      +
    868A  GLU*     3.1    47.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 865 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    861A  ASP      3.1    15.3    +      -       -      +
    862A  ALA*     3.7     8.7    -      -       -      +
    863A  VAL      3.2     0.4    -      -       -      -
    864A  ILE*     1.3    78.7    -      -       +      +
    866A  LYS*     1.3    62.9    +      -       +      +
    868A  GLU*     3.2    17.2    +      -       -      +
    869A  ILE*     3.1    44.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 866 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    862A  ALA*     3.1    28.2    +      -       -      +
    863A  VAL*     3.1    22.1    +      -       +      +
    865A  VAL*     1.3    75.6    -      -       +      +
    867A  LEU*     1.3    64.0    +      -       +      +
    869A  ILE*     3.5    13.2    +      -       +      +
    870A  MET*     3.1    27.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 867 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    863A  VAL*     3.1    29.6    +      -       +      +
    864A  ILE*     3.7    10.8    -      -       +      +
    865A  VAL      3.2     0.2    -      -       -      -
    866A  LYS*     1.3    77.6    -      -       +      +
    868A  GLU*     1.3    64.5    +      -       +      +
    870A  MET*     3.3    39.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 868 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    864A  ILE*     3.1    28.8    +      -       +      +
    865A  VAL*     3.2    25.0    +      -       -      +
    867A  LEU*     1.3    77.8    -      -       +      +
    869A  ILE*     1.3    63.5    +      -       +      +
    870A  MET      3.7     2.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 869 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    865A  VAL*     3.2    33.9    -      -       +      +
    866A  LYS*     3.5    14.8    -      -       +      +
    868A  GLU*     1.3    80.2    -      -       +      +
    870A  MET*     1.3    65.8    +      -       -      +
----------------------------------------------------------
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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