Contacts of the helix formed by residues 77 - 102 (chain D) in PDB entry 3H90


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 LYS 77 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  LYS*     3.2    21.8    -      -       -      +
    205B  LEU      3.5    21.0    +      -       -      +
    206B  LEU*     3.9    17.5    -      -       +      -
    207B  ASP*     3.5    13.7    +      -       -      +
     74D  GLY      5.2     0.9    -      -       -      -
     75D  HIS      3.2     0.8    -      -       -      -
     76D  GLY*     1.3    72.2    -      -       -      +
     78D  ALA*     1.3    62.1    +      -       -      +
     79D  GLU      2.9     7.1    +      -       -      -
     80D  SER*     3.0    21.4    +      -       -      +
     81D  LEU*     3.1    11.8    +      -       -      +
    204D  SER*     3.3    24.5    -      -       -      +
    205D  LEU*     3.7    15.7    +      -       +      +
    207D  ASP*     2.8    25.5    +      -       -      -
    237D  ARG*     5.3     0.2    -      -       -      +
    238D  GLN      4.5     4.0    -      -       -      +
    239D  SER*     3.7    30.4    +      -       -      +
    240D  GLY      4.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 78 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206B  LEU*     3.6    17.6    -      -       +      +
     59D  VAL*     3.5    18.9    -      -       +      +
     62D  TYR*     4.0    23.1    -      -       +      -
     63D  SER*     4.3     7.2    -      -       -      -
     75D  HIS      3.1    16.6    +      -       -      +
     77D  LYS*     1.3    76.4    -      -       -      +
     79D  GLU*     1.3    56.5    +      -       -      +
     81D  LEU*     3.6     6.3    -      -       -      +
     82D  ALA*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 79 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11D  ARG*     2.5    30.6    +      -       -      -
     14D  ILE*     4.7     3.1    -      -       -      -
     59D  VAL*     5.4     0.7    -      -       -      -
     60D  VAL*     5.1     3.6    -      -       +      -
     63D  SER*     3.3    27.0    +      -       -      +
     76D  GLY      3.0    10.9    +      -       -      +
     77D  LYS      2.9     2.4    +      -       -      -
     78D  ALA*     1.3    77.6    -      -       -      +
     80D  SER*     1.3    53.7    +      -       -      +
     82D  ALA*     3.0     6.1    +      -       -      +
     83D  ALA*     2.7    36.2    +      -       -      +
    144D  SER*     2.9    37.1    +      -       -      -
    145D  GLN*     3.7     6.4    +      -       +      +
    146D  ALA*     3.6    23.4    -      -       +      +
    240D  GLY*     4.6     7.6    -      -       -      -
    241D  PRO*     3.7    10.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 80 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76D  GLY      4.8     0.9    +      -       -      -
     77D  LYS*     3.0    15.6    +      -       -      +
     79D  GLU*     1.3    78.0    -      -       -      +
     81D  LEU*     1.3    57.0    +      -       -      +
     83D  ALA*     3.5     4.4    -      -       -      +
     84D  LEU*     2.8    30.7    +      -       -      +
    145D  GLN*     2.9    26.5    +      -       -      -
    201D  ALA*     3.6    21.3    -      -       -      +
    204D  SER*     3.7    11.7    -      -       -      -
    205D  LEU*     4.1    12.9    -      -       -      +
    240D  GLY*     4.9     6.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84B  LEU*     4.5     9.4    -      -       +      -
    202B  VAL*     3.9    27.4    -      -       +      -
    205B  LEU*     3.9    22.7    -      -       +      -
    206B  LEU*     3.4    31.0    -      -       +      -
     77D  LYS      3.1    12.0    +      -       -      +
     78D  ALA*     3.6     7.4    -      -       -      +
     80D  SER*     1.3    75.4    -      -       -      +
     82D  ALA*     1.3    59.5    +      -       -      +
     84D  LEU*     3.2     8.8    +      -       +      +
     85D  ALA*     2.9    28.1    +      -       -      +
    205D  LEU*     3.5    29.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56D  ASN*     4.4    16.4    -      -       -      +
     59D  VAL*     3.8    22.0    -      -       +      +
     78D  ALA      3.0    15.3    +      -       -      +
     79D  GLU*     3.4     9.0    -      -       -      +
     81D  LEU*     1.3    71.2    -      -       -      +
     83D  ALA*     1.3    61.5    +      -       -      +
     85D  ALA*     3.2     8.7    +      -       -      +
     86D  GLN*     2.8    40.3    +      -       +      +
    146D  ALA*     5.1     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 83 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79D  GLU      2.7    18.8    +      -       -      +
     80D  SER*     3.5     7.9    -      -       -      +
     82D  ALA*     1.3    74.1    -      -       -      +
     84D  LEU*     1.3    56.6    +      -       -      +
     86D  GLN*     3.4     2.4    +      -       -      +
     87D  SER*     2.9    29.6    +      -       -      -
    145D  GLN*     3.8    34.5    -      -       +      +
    146D  ALA*     4.9     1.7    -      -       -      +
    149D  ALA*     3.8    16.9    -      -       +      +
    197D  MET*     4.1     8.7    -      -       +      +
    201D  ALA*     4.4     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 84 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  LEU*     4.3    10.8    -      -       +      -
     84B  LEU*     5.6     5.4    -      -       +      -
     80D  SER      2.8    17.6    +      -       -      +
     81D  LEU*     3.4     9.9    -      -       +      +
     82D  ALA      3.2     0.2    -      -       -      -
     83D  ALA*     1.3    73.9    -      -       -      +
     85D  ALA*     1.3    65.4    +      -       -      +
     87D  SER*     3.1    15.4    +      -       -      +
     88D  MET*     3.2    39.3    +      -       +      +
    198D  GLY*     3.4    29.8    -      -       -      +
    201D  ALA*     3.9     6.0    -      -       +      +
    202D  VAL*     3.6    17.0    -      -       +      -
    205D  LEU*     3.5    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 85 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  MET*     6.1     5.2    -      -       +      -
     81D  LEU      2.9    12.8    +      -       -      +
     82D  ALA*     3.5    10.5    -      -       -      +
     84D  LEU*     1.3    76.2    -      -       -      +
     86D  GLN*     1.3    63.8    +      -       +      +
     88D  MET*     3.5    13.3    +      -       -      +
     89D  PHE*     3.5    26.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 86 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52D  ALA      6.1     0.4    -      -       -      -
     56D  ASN*     3.0    43.4    +      -       -      +
     82D  ALA*     2.8    25.1    +      -       +      +
     83D  ALA      3.5     4.7    -      -       -      +
     85D  ALA*     1.3    73.4    -      -       +      +
     87D  SER*     1.3    66.9    +      -       -      +
     88D  MET      3.1     0.5    +      -       -      -
     89D  PHE*     3.2     6.8    +      -       -      +
     90D  ILE*     3.0    36.8    +      -       +      +
    146D  ALA      3.6     9.3    +      -       -      -
    149D  ALA*     3.6    11.3    -      -       +      +
    150D  ASP*     3.3    30.3    +      -       -      +
    153D  HIS*     5.3     1.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 87 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83D  ALA      2.9    18.2    +      -       -      -
     84D  LEU*     3.1     8.5    +      -       -      +
     86D  GLN*     1.3    77.8    -      -       -      +
     88D  MET*     1.3    57.2    +      -       -      +
     90D  ILE*     4.6     6.5    -      -       -      -
     91D  SER*     2.9    31.6    +      -       -      -
    152D  LEU*     6.1     0.2    -      -       -      -
    194D  ALA*     2.6    29.9    +      -       -      +
    195D  LEU*     4.8     1.2    -      -       -      +
    197D  MET*     4.2     9.0    -      -       -      -
    198D  GLY*     3.1    26.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 88 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85B  ALA*     6.1     4.9    -      -       +      -
     88B  MET*     4.1    35.7    -      -       +      +
     89B  PHE*     6.6     0.2    -      -       -      -
     84D  LEU*     3.2    40.4    +      -       +      +
     85D  ALA*     3.8    10.5    -      -       -      +
     86D  GLN      3.1     0.6    -      -       -      -
     87D  SER*     1.3    75.9    -      -       -      +
     89D  PHE*     1.3    65.1    +      -       +      +
     91D  SER*     3.0     6.9    +      -       -      -
     92D  GLY*     2.6    34.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 89 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  MET*     6.5     1.1    -      -       -      -
     85D  ALA*     3.5    17.3    -      -       +      +
     86D  GLN*     3.2     9.1    +      -       -      +
     88D  MET*     1.3    81.5    -      -       +      +
     90D  ILE*     1.3    53.9    +      -       +      +
     92D  GLY*     3.0     2.6    +      -       -      +
     93D  SER*     2.8    40.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 90 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86D  GLN*     3.0    34.3    +      -       +      +
     87D  SER*     4.0     5.6    -      -       -      +
     89D  PHE*     1.3    76.9    -      -       +      +
     91D  SER*     1.3    60.9    +      -       -      +
     93D  SER*     3.3     8.4    +      -       -      -
     94D  ALA*     3.1    23.2    +      -       -      +
    149D  ALA*     3.4    26.2    -      -       -      +
    152D  LEU*     4.0    17.9    -      -       +      -
    153D  HIS*     3.8    33.4    -      -       +      +
    156D  SER*     5.8     1.1    -      -       -      -
    190D  ILE*     4.0    16.3    -      -       +      +
    194D  ALA*     3.8    17.3    -      -       +      -
    197D  MET*     6.3     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 91 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87D  SER*     2.9    21.3    +      -       -      -
     88D  MET*     3.0     7.8    +      -       -      -
     90D  ILE*     1.3    76.3    -      -       -      +
     92D  GLY*     1.3    58.0    +      -       -      +
     94D  ALA*     3.4     1.1    +      -       -      -
     95D  LEU*     3.2    24.3    +      -       -      +
    191D  LEU*     3.3    32.5    -      -       -      +
    194D  ALA*     3.7    13.6    -      -       -      +
    195D  LEU*     3.5    25.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 92 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88D  MET      2.6    18.9    +      -       -      -
     89D  PHE*     3.0     4.5    +      -       -      -
     91D  SER*     1.3    71.7    -      -       -      +
     93D  SER*     1.3    62.2    +      -       -      +
     95D  LEU*     3.8     7.4    +      -       -      +
     96D  PHE*     3.2    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 93 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89D  PHE*     2.8    23.1    +      -       -      +
     90D  ILE*     3.6     9.7    -      -       -      -
     91D  SER      3.3     0.2    -      -       -      -
     92D  GLY*     1.3    73.6    -      -       -      +
     94D  ALA*     1.3    59.0    +      -       -      +
     96D  PHE*     3.4    12.0    -      -       -      +
     97D  LEU*     3.0    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 94 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90D  ILE      3.1    16.3    +      -       -      +
     91D  SER      3.8     1.3    -      -       -      +
     92D  GLY      3.3     0.2    -      -       -      -
     93D  SER*     1.3    76.2    -      -       -      +
     95D  LEU*     1.3    60.4    +      -       -      +
     97D  LEU*     3.3     6.2    +      -       -      +
     98D  PHE*     2.9    23.0    +      -       -      +
    187D  GLY*     3.4    17.5    -      -       -      +
    190D  ILE*     3.8    13.2    -      -       +      -
    191D  LEU*     3.4    37.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 95 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  SER      3.2    15.6    +      -       -      +
     92D  GLY*     4.2     7.2    -      -       -      +
     93D  SER      3.4     0.2    -      -       -      -
     94D  ALA*     1.3    72.3    -      -       -      +
     96D  PHE*     1.3    63.4    +      -       +      +
     97D  LEU      3.1     0.2    -      -       -      -
     98D  PHE*     4.4     5.4    -      -       -      +
     99D  LEU*     3.0    54.3    +      -       +      +
    191D  LEU*     4.5    20.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 96 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92D  GLY      3.2    17.8    +      -       -      +
     93D  SER*     3.4    11.2    -      -       -      +
     95D  LEU*     1.3    84.6    -      -       +      +
     97D  LEU*     1.3    63.3    +      -       +      +
     99D  LEU*     4.0     3.2    -      -       -      +
    100D  THR*     2.6    44.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 97 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93D  SER      3.0    16.3    +      -       -      +
     94D  ALA*     3.8     7.6    -      -       -      +
     95D  LEU      3.1     0.4    -      -       -      -
     96D  PHE*     1.3    89.0    -      -       +      +
     98D  PHE*     1.3    59.5    +      -       -      +
     99D  LEU      3.4     0.2    -      -       -      -
    100D  THR*     3.5     9.0    +      -       -      -
    101D  GLY*     2.9    18.9    +      -       -      -
    156D  SER*     5.8     2.7    -      -       -      +
    183D  ALA*     3.1    39.3    -      -       +      +
    186D  ILE*     4.0    28.5    -      -       +      -
    187D  GLY*     4.2     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 98 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94D  ALA      2.9    16.8    +      -       -      +
     95D  LEU*     4.1     4.9    -      -       -      +
     97D  LEU*     1.3    76.0    -      -       -      +
     99D  LEU*     1.3    77.4    +      -       +      +
    100D  THR      3.2     1.6    -      -       -      -
    101D  GLY*     3.0    13.3    +      -       -      +
    102D  ILE*     3.1    35.3    +      -       +      +
    183D  ALA      4.5     1.3    -      -       -      -
    184D  LEU*     3.7    31.2    -      -       +      -
    187D  GLY*     3.9    14.3    -      -       -      +
    188D  ILE*     3.6    34.5    -      -       +      -
    191D  LEU*     5.7     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 99 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95D  LEU*     3.0    47.6    +      -       +      +
     96D  PHE*     4.0     2.9    -      -       -      +
     98D  PHE*     1.3    93.3    -      -       +      +
    100D  THR*     1.3    59.4    +      -       -      +
    102D  ILE*     3.7    25.1    -      -       +      +
    103D  GLN*     3.2    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 100 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96D  PHE*     2.6    38.5    +      -       +      -
     97D  LEU*     3.5    11.1    +      -       +      -
     98D  PHE      3.2     0.4    -      -       -      -
     99D  LEU*     1.3    76.9    -      -       -      +
    101D  GLY*     1.3    63.0    +      -       -      +
    102D  ILE      3.5     0.4    -      -       -      -
    103D  GLN*     3.5    19.2    +      -       -      +
    104D  HIS*     3.3    48.5    +      -       +      +
    183D  ALA*     5.5     2.0    -      -       +      -
----------------------------------------------------------
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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  LEU      2.9    15.0    +      -       -      -
     98D  PHE      3.0     7.2    +      -       -      -
    100D  THR*     1.3    79.9    -      -       -      +
    102D  ILE*     1.3    57.5    +      -       -      +
    104D  HIS      4.0     0.5    -      -       -      -
    105D  LEU*     3.7     6.9    +      -       -      +
    180D  ALA*     3.7    25.9    -      -       -      +
    183D  ALA*     4.3     6.1    -      -       -      -
    184D  LEU*     3.8    28.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 102 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98D  PHE*     3.1    32.3    +      -       +      +
     99D  LEU*     3.7    27.4    -      -       +      -
    101D  GLY*     1.3    72.5    -      -       -      +
    103D  GLN*     1.3    66.3    +      -       -      +
    104D  HIS      3.6     0.2    -      -       -      -
    105D  LEU*     3.4    28.0    -      -       +      +
    107D  SER*     4.0     3.5    +      -       -      -
    184D  LEU*     3.5    21.3    -      -       +      +
----------------------------------------------------------
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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