Contacts of the helix formed by residues 82 - 111 (chain I) in PDB entry 3IS7


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 ASN 82 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35I  TRP*     4.1     6.3    -      -       -      -
     80I  GLY      3.5     0.8    -      -       -      -
     81I  GLU*     1.3    82.2    -      -       -      +
     83I  THR*     1.3    61.0    +      -       -      +
     84I  GLN*     3.1    11.6    +      -       -      +
     85I  GLU*     2.8    49.1    +      -       -      +
     86I  MET*     2.8    35.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 83 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32I  TRP*     3.1    32.0    +      -       +      +
     35I  TRP*     4.4     4.4    -      -       -      -
     37I  LEU*     4.0     5.2    -      -       -      +
     40I  LEU*     4.0     8.7    -      -       +      -
     82I  ASN*     1.3    76.5    -      -       -      +
     84I  GLN*     1.3    63.3    +      -       -      +
     86I  MET*     3.8     9.7    -      -       -      +
     87I  LEU*     3.0    37.1    +      -       +      +
    141I  ILE*     5.1     2.5    -      -       +      -
    146I  LEU*     5.2     3.4    -      -       -      -
    149I  TYR*     4.4     5.8    -      -       +      -
    150I  LEU*     3.5    34.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 84 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82I  ASN*     3.1    10.0    +      -       -      +
     83I  THR*     1.3    80.2    -      -       -      +
     85I  GLU*     1.3    57.6    +      -       -      +
     87I  LEU*     3.4     2.4    +      -       -      +
     88I  GLN*     3.0    29.0    +      -       +      +
    138I  LEU*     4.0    23.8    +      -       +      +
    141I  ILE*     3.8    30.7    -      -       +      +
    142I  GLN*     3.6    24.5    +      -       -      +
    146I  LEU*     4.5    15.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 85 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79I  ILE      5.1     0.2    -      -       -      +
     80I  GLY*     3.7    10.9    -      -       -      -
     81I  GLU*     2.9    47.6    +      -       -      +
     82I  ASN*     2.8    31.0    +      -       -      +
     84I  GLN*     1.3    70.7    -      -       -      +
     86I  MET*     1.3    56.2    +      -       -      +
     88I  GLN*     3.3     6.1    +      -       -      +
     89I  CYS*     2.7    40.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 86 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28I  HIS*     3.6    60.6    -      -       +      +
     31I  MET*     4.2    13.5    -      -       +      -
     32I  TRP*     3.5    34.5    -      -       +      +
     35I  TRP*     3.5    22.0    -      -       -      -
     80I  GLY*     3.8    12.8    -      -       -      +
     82I  ASN*     2.8    35.4    +      -       -      +
     83I  THR      3.8     4.9    -      -       -      +
     85I  GLU*     1.3    71.4    -      -       -      +
     87I  LEU*     1.3    64.0    +      -       -      +
     89I  CYS*     3.2     2.3    +      -       -      +
     90I  ASP*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 87 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32I  TRP*     4.1    20.2    -      -       +      -
     40I  LEU*     4.8     5.6    -      -       +      -
     44I  GLU*     6.0     0.4    -      -       -      +
     83I  THR*     3.0    30.5    +      -       +      +
     84I  GLN      3.7     3.4    -      -       -      +
     85I  GLU      3.2     0.2    -      -       -      -
     86I  MET*     1.3    78.0    -      -       -      +
     88I  GLN*     1.3    56.0    +      -       -      +
     90I  ASP*     3.4     8.0    +      -       -      +
     91I  LEU*     2.8    27.9    +      -       -      +
    133I  TYR*     4.6     5.4    -      -       +      -
    134I  LEU*     3.9    25.0    -      -       +      +
    137I  GLN*     3.9    32.8    -      -       +      -
    138I  LEU*     3.9    17.4    -      -       +      +
    141I  ILE*     3.9    23.8    -      -       +      -
    149I  TYR*     4.4     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 88 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84I  GLN*     3.0    18.8    +      -       +      +
     85I  GLU*     3.8     6.5    -      -       -      +
     87I  LEU*     1.3    73.1    -      -       -      +
     89I  CYS*     1.3    59.7    +      -       -      +
     91I  LEU*     3.0    28.5    +      -       -      +
     92I  ASN*     2.7    65.5    +      -       -      +
     95I  LEU*     5.7     1.2    -      -       -      +
    138I  LEU*     4.4    15.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 89 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24I  GLN*     3.2     8.3    +      -       -      +
     28I  HIS*     4.1     2.7    -      -       +      -
     78I  LEU*     3.4    42.6    -      -       +      +
     79I  ILE      4.0     1.6    -      -       -      -
     80I  GLY*     3.8    17.9    -      -       -      -
     85I  GLU*     2.7    28.5    +      -       -      +
     86I  MET      3.2     4.9    +      -       -      +
     88I  GLN*     1.3    74.2    -      -       -      +
     90I  ASP*     1.3    61.8    +      -       -      +
     92I  ASN*     3.4     9.6    +      -       -      +
     93I  LEU*     3.1    19.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 90 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24I  GLN*     2.9    21.4    +      -       -      +
     25I  TYR*     3.2    20.9    +      -       +      -
     28I  HIS*     2.8    22.5    +      -       -      -
     32I  TRP*     4.8     4.7    -      -       -      -
     44I  GLU*     2.4    32.9    -      -       -      +
     86I  MET      2.9    14.0    +      -       -      +
     87I  LEU*     3.6     8.5    -      -       -      +
     89I  CYS*     1.3    76.9    -      -       -      +
     91I  LEU*     1.3    62.3    +      -       -      +
     93I  LEU*     3.5     3.4    +      -       -      +
     94I  GLU*     3.1    28.1    +      -       -      +
    130I  HIS*     4.6     1.0    +      -       +      -
    134I  LEU*     3.9    20.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 91 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87I  LEU      2.8    18.2    +      -       -      +
     88I  GLN*     3.0    29.1    +      -       -      +
     90I  ASP*     1.3    75.2    -      -       -      +
     92I  ASN*     1.3    65.9    +      -       -      +
     94I  GLU*     3.1     2.3    +      -       -      +
     95I  LEU*     3.0    44.0    +      -       +      +
    131I  ILE*     4.0    28.7    -      -       +      -
    134I  LEU*     3.8    22.2    -      -       +      -
    135I  GLU*     4.2    22.0    -      -       +      +
    138I  LEU*     4.3    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 92 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78I  LEU*     4.3    13.5    -      -       +      +
     88I  GLN*     2.7    52.3    +      -       -      +
     89I  CYS*     3.9     7.5    -      -       -      +
     91I  LEU*     1.3    70.7    -      -       -      +
     93I  LEU*     1.3    63.2    +      -       -      +
     95I  LEU*     3.3    13.1    +      -       -      +
     96I  LYS*     3.2    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 93 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17I  ASN*     5.3     4.5    -      -       +      +
     20I  ILE*     3.7    26.9    -      -       +      -
     21I  ALA*     3.6    39.7    -      -       +      +
     24I  GLN*     3.5    25.1    -      -       -      +
     25I  TYR*     4.0     9.9    -      -       +      +
     76I  LYS      5.0     1.3    -      -       -      +
     78I  LEU*     4.1    16.4    -      -       +      +
     89I  CYS      3.1    18.4    +      -       -      +
     90I  ASP      3.6     4.9    -      -       -      +
     91I  LEU      3.3     0.2    -      -       -      -
     92I  ASN*     1.3    78.6    -      -       -      +
     94I  GLU*     1.4    56.2    +      -       -      +
     96I  LYS*     3.5    10.4    +      -       +      +
     97I  ALA*     3.0    27.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 94 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21I  ALA*     5.0     0.7    -      -       -      +
     25I  TYR*     2.3    29.5    +      -       -      +
     51I  GLU*     3.8     3.0    -      -       -      +
     90I  ASP      3.1    21.3    +      -       -      +
     91I  LEU      3.1     3.7    +      -       -      +
     93I  LEU*     1.4    72.8    -      -       -      +
     95I  LEU*     1.3    62.6    +      -       -      +
     97I  ALA*     3.9     7.7    -      -       -      +
     98I  THR*     2.9    31.5    +      -       -      -
    127I  GLU*     2.8    44.3    -      -       -      +
    130I  HIS*     2.8    26.8    +      -       +      +
    131I  ILE*     3.6    20.9    -      -       +      -
    134I  LEU*     4.0     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 95 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88I  GLN*     5.7     0.9    -      -       -      +
     91I  LEU*     3.0    39.4    +      -       +      +
     92I  ASN*     3.3    14.5    +      -       -      +
     94I  GLU*     1.3    78.4    -      -       -      +
     96I  LYS*     1.3    57.7    +      -       -      +
     98I  THR*     3.4     9.5    +      -       +      +
     99I  LYS*     3.0    27.5    +      -       -      +
    131I  ILE*     4.0    22.2    -      -       +      -
    135I  GLU*     5.9     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 96 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13I  LYS*     4.3    11.0    -      -       -      +
     17I  ASN*     3.7    15.2    +      -       -      +
     92I  ASN      3.2     9.3    +      -       -      +
     93I  LEU*     3.7    13.0    -      -       +      +
     95I  LEU*     1.3    74.0    -      -       -      +
     97I  ALA*     1.3    68.2    +      -       -      +
     98I  THR      3.0     1.7    +      -       -      -
     99I  LYS*     3.2    21.4    +      -       -      +
    100I  ASP*     2.4    57.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 97 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14I  ILE*     5.0     0.5    -      -       -      +
     17I  ASN*     4.0    26.9    +      -       +      +
     18I  GLU*     5.8     1.6    -      -       -      +
     51I  GLU*     6.0     0.7    -      -       -      +
     93I  LEU*     3.0    19.4    +      -       +      +
     94I  GLU*     3.4    17.4    +      -       -      +
     96I  LYS*     1.3    76.9    -      -       -      +
     98I  THR*     1.3    57.1    +      -       -      +
    100I  ASP*     3.4     2.6    +      -       -      +
    101I  LEU*     3.0    42.3    +      -       +      +
    127I  GLU*     5.0     6.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 98 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94I  GLU      2.9    17.4    +      -       -      +
     95I  LEU*     3.5    12.6    -      -       +      +
     96I  LYS      3.0     0.2    -      -       -      -
     97I  ALA*     1.3    76.5    -      -       -      +
     99I  LYS*     1.3    68.2    +      -       -      +
    101I  LEU*     3.4     8.4    +      -       -      +
    102I  ARG*     3.2    53.7    +      -       -      +
    124I  LEU*     3.7    13.8    -      -       -      +
    127I  GLU*     4.0    12.1    -      -       -      +
    128I  GLU*     4.6     2.9    -      -       -      +
    131I  ILE*     3.9    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 99 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95I  LEU      3.0    13.8    +      -       -      +
     96I  LYS*     3.6    25.4    -      -       -      +
     98I  THR*     1.3    80.0    -      -       -      +
    100I  ASP*     1.3    66.0    +      -       -      +
    102I  ARG*     3.3    15.5    +      -       -      +
    103I  GLU*     3.0    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 100 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10I  HIS*     4.9     1.4    +      -       -      -
     13I  LYS*     3.4    29.6    +      -       +      +
     14I  ILE*     3.6    10.0    -      -       +      +
     17I  ASN*     2.9    24.3    +      -       -      +
     96I  LYS*     2.4    56.8    +      -       -      +
     97I  ALA      3.8     1.3    -      -       -      +
     99I  LYS*     1.3    82.6    -      -       -      +
    101I  LEU*     1.3    56.8    +      -       -      +
    103I  GLU*     3.5    11.2    +      -       -      +
    104I  ALA*     3.0    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 101 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14I  ILE*     3.5    37.2    -      -       +      +
     18I  GLU*     5.3     1.3    -      -       -      +
     97I  ALA*     3.0    30.7    +      -       +      +
     98I  THR*     3.7     9.6    -      -       -      +
    100I  ASP*     1.3    74.7    -      -       -      +
    102I  ARG*     1.3    65.0    +      -       -      +
    104I  ALA*     3.3     2.5    +      -       -      +
    105I  ILE*     2.9    30.1    +      -       +      +
    120I  LEU*     4.0    25.1    -      -       +      +
    123I  ILE*     4.2    11.2    -      -       +      -
    124I  LEU*     3.9    27.1    -      -       +      -
    127I  GLU*     3.9    26.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 102 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98I  THR*     3.2    35.1    +      -       -      +
     99I  LYS*     3.3     9.3    +      -       -      +
    101I  LEU*     1.3    75.9    -      -       -      +
    103I  GLU*     1.3    56.4    +      -       +      +
    105I  ILE*     3.0     4.7    +      -       -      +
    106I  VAL*     3.0    34.1    +      -       -      +
    124I  LEU*     3.8    19.1    -      -       +      +
    128I  GLU*     2.8    31.3    +      -       -      +
    111P  VAL      5.4     0.4    -      -       -      -
    112P  HIS*     3.0    42.3    +      -       +      +
    113P  ASP*     4.0    11.3    +      -       -      +
    114P  TYR*     3.9    17.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 103 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10I  HIS*     4.0    14.3    -      -       +      -
     13I  LYS*     5.1     6.8    +      -       -      -
     99I  LYS*     3.0    40.9    +      -       -      +
    100I  ASP*     3.7    15.4    -      -       -      +
    101I  LEU      3.3     0.4    -      -       -      -
    102I  ARG*     1.3    74.1    -      -       +      +
    104I  ALA*     1.3    65.8    +      -       -      +
    106I  VAL*     3.5    10.4    +      -       +      +
    107I  HIS*     3.2    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 104 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10I  HIS*     3.6    32.1    +      -       +      +
     14I  ILE*     4.0    12.6    -      -       +      -
    100I  ASP      3.0    18.5    +      -       -      +
    101I  LEU      3.7     4.3    -      -       -      +
    103I  GLU*     1.3    74.8    -      -       -      +
    105I  ILE*     1.3    63.1    +      -       -      +
    107I  HIS*     3.3     3.6    +      -       -      +
    108I  CYS*     3.0    26.0    +      -       -      -
    120I  LEU*     3.7    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 105 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101I  LEU      2.9    21.5    +      -       -      +
    102I  ARG      3.0     6.5    +      -       -      +
    104I  ALA*     1.3    75.8    -      -       -      +
    106I  VAL*     1.3    64.8    +      -       -      +
    108I  CYS*     3.3     6.2    +      -       -      +
    109I  GLU*     2.9    22.3    +      -       -      +
    117I  ARG*     3.8    29.3    +      -       +      +
    120I  LEU*     3.9    21.3    -      -       +      +
    121I  LYS*     4.3    18.8    -      -       +      +
    124I  LEU*     4.1    17.7    -      -       +      -
    114P  TYR*     3.6    48.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 106 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102I  ARG      3.0    17.6    +      -       -      +
    103I  GLU*     3.6     9.9    -      -       +      +
    105I  ILE*     1.3    75.8    -      -       -      +
    107I  HIS*     1.3    66.4    +      -       -      +
    109I  GLU*     3.1     6.9    +      -       -      +
    110I  GLN*     3.0    33.9    +      -       +      +
    112P  HIS*     3.7    28.0    -      -       +      +
    114P  TYR*     3.4    16.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 107 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4I  ASP*     3.0    22.5    +      -       -      -
      6I  LYS*     3.1    26.3    -      -       +      +
      7I  VAL*     3.5    28.0    -      -       +      -
     10I  HIS*     3.7    27.4    -      +       +      +
    103I  GLU      3.2     6.6    +      -       -      +
    104I  ALA      3.8     3.6    -      -       -      +
    105I  ILE      3.2     0.2    -      -       -      -
    106I  VAL*     1.3    81.3    -      -       -      +
    108I  CYS*     1.3    62.3    +      -       -      +
    110I  GLN*     3.2    24.5    +      -       -      -
    111I  VAL*     3.1    42.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 108 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7I  VAL*     4.3    18.8    -      -       -      -
     10I  HIS*     5.9     2.0    -      -       -      -
     11I  LEU*     5.5     0.2    -      -       -      -
    104I  ALA*     3.0    22.6    +      -       -      +
    105I  ILE      3.9     3.6    -      -       -      +
    106I  VAL      3.3     0.4    -      -       -      -
    107I  HIS*     1.3    72.9    -      -       -      +
    109I  GLU*     1.3    67.5    +      -       -      +
    111I  VAL*     3.5     6.9    +      -       -      -
    112I  HIS*     3.0     4.2    +      -       -      -
    113I  ASP*     2.9    43.9    +      -       +      +
    116I  SER*     3.7    25.4    -      -       -      -
    117I  ARG*     3.9    11.7    -      -       +      -
    120I  LEU*     4.0    16.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 109 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105I  ILE      2.9    14.0    +      -       -      +
    106I  VAL*     3.5    10.5    -      -       -      +
    108I  CYS*     1.3    74.9    -      -       -      +
    110I  GLN*     1.3    64.5    +      -       +      +
    112I  HIS*     3.1    23.0    +      -       -      -
    114I  TYR*     3.4    19.0    +      -       -      -
    117I  ARG*     2.9    37.8    +      -       -      +
    109P  GLU*     4.1     6.7    -      -       -      +
    109Q  GLU*     4.0    10.0    -      -       -      +
    117Q  ARG*     2.3    35.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 110 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106I  VAL*     3.0    28.9    +      -       +      +
    107I  HIS*     3.2    26.0    +      -       -      +
    109I  GLU*     1.3    79.0    -      -       +      +
    111I  VAL*     1.3    60.8    +      -       +      +
    112I  HIS*     3.4    14.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 111 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4I  ASP*     3.6    22.7    -      -       +      +
      7I  VAL*     3.7    26.9    -      -       +      -
    107I  HIS*     3.1    41.4    +      -       +      +
    108I  CYS      3.9     4.7    -      -       -      +
    110I  GLN*     1.3    79.8    -      -       +      +
    112I  HIS*     1.3    70.7    +      -       -      +
    113I  ASP*     3.3     6.4    +      -       +      +
    102Q  ARG*     5.5     1.2    -      -       -      -
----------------------------------------------------------
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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