Contacts of the helix formed by residues 82 - 111 (chain X) 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 X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35X  TRP*     4.1     8.1    -      -       -      -
     80X  GLY      3.6     0.2    -      -       -      -
     81X  GLU*     1.3    81.9    -      -       -      +
     83X  THR*     1.3    60.7    +      -       -      +
     84X  GLN*     3.4    18.9    +      -       -      +
     85X  GLU*     3.0    38.4    +      -       -      +
     86X  MET*     2.9    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 83 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  LYS*     5.9     0.2    -      -       -      +
     32X  TRP*     2.9    25.2    +      -       +      +
     35X  TRP*     4.4     3.2    -      -       -      -
     37X  LEU*     3.7     7.6    -      -       -      +
     40X  LEU*     3.9    17.5    -      -       +      -
     82X  ASN*     1.3    73.8    -      -       -      +
     84X  GLN*     1.3    63.8    +      -       -      +
     86X  MET*     3.0     4.9    +      -       -      +
     87X  LEU*     2.9    40.8    +      -       +      +
    141X  ILE*     4.8     3.6    -      -       +      -
    146X  LEU*     5.2     2.5    -      -       +      -
    149X  TYR*     4.3     6.3    -      -       +      -
    150X  LEU*     3.5    36.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 84 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82X  ASN*     3.4    16.7    +      -       -      +
     83X  THR*     1.3    80.6    -      -       -      +
     85X  GLU*     1.3    58.9    +      -       +      +
     87X  LEU*     3.6     4.5    +      -       -      +
     88X  GLN*     3.1    26.6    +      -       -      +
    138X  LEU*     4.1    10.5    -      -       +      +
    141X  ILE*     4.0    36.2    -      -       +      +
    142X  GLN*     5.1     5.9    -      -       -      +
    146X  LEU*     3.7    30.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 85 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79X  ILE      5.2     0.2    -      -       -      +
     80X  GLY*     4.0     6.3    -      -       -      -
     81X  GLU*     3.0    49.5    +      -       -      +
     82X  ASN*     3.0    27.4    +      -       -      +
     84X  GLN*     1.3    78.8    -      -       +      +
     86X  MET*     1.3    60.7    +      -       -      +
     88X  GLN*     3.8     5.8    -      -       -      +
     89X  CYS*     2.9    34.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 86 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28X  HIS*     3.6    62.4    -      -       +      +
     31X  MET*     3.9    18.2    -      -       +      -
     32X  TRP*     3.5    33.0    -      -       +      +
     35X  TRP*     3.4    27.1    -      -       +      -
     80X  GLY*     3.8    14.8    -      -       -      -
     82X  ASN*     2.9    28.8    +      -       -      +
     83X  THR      3.8     2.7    -      -       -      +
     85X  GLU*     1.3    71.8    -      -       -      +
     87X  LEU*     1.3    64.7    +      -       -      +
     89X  CYS*     3.3     3.7    +      -       -      +
     90X  ASP*     2.9    27.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 87 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32X  TRP*     4.1    19.1    -      -       +      -
     40X  LEU*     4.6     5.6    -      -       +      -
     44X  GLU*     5.9     0.4    -      -       -      +
     83X  THR*     2.9    35.9    +      -       +      +
     84X  GLN      3.8     3.4    -      -       -      +
     86X  MET*     1.3    77.6    -      -       -      +
     88X  GLN*     1.3    56.5    +      -       -      +
     90X  ASP*     3.3     5.5    +      -       -      +
     91X  LEU*     3.0    28.2    +      -       -      +
    133X  TYR*     4.5     6.3    -      -       +      -
    134X  LEU*     3.7    28.4    -      -       +      +
    137X  GLN*     4.1    33.0    -      -       +      -
    138X  LEU*     4.1    17.3    -      -       +      -
    141X  ILE*     4.2    16.6    -      -       +      -
    149X  TYR*     4.3     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 88 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84X  GLN      3.1    17.7    +      -       -      +
     85X  GLU*     3.8     7.4    -      -       -      +
     86X  MET      3.4     0.2    -      -       -      -
     87X  LEU*     1.3    75.7    -      -       -      +
     89X  CYS*     1.3    57.4    +      -       -      +
     91X  LEU*     3.3    23.0    +      -       -      +
     92X  ASN*     2.8    60.0    +      -       -      +
     95X  LEU*     5.6     1.4    -      -       -      +
    138X  LEU*     3.9    21.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 89 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24X  GLN*     3.2     8.8    +      -       -      +
     28X  HIS*     4.2     2.0    -      -       +      -
     78X  LEU*     3.4    47.4    -      -       +      +
     79X  ILE      4.1     2.9    -      -       -      -
     80X  GLY*     3.9    13.0    -      -       -      -
     85X  GLU*     2.9    23.5    +      -       -      +
     86X  MET      3.4     5.8    -      -       -      +
     88X  GLN*     1.3    74.3    -      -       -      +
     90X  ASP*     1.3    64.6    +      -       -      +
     92X  ASN*     3.4     9.3    +      -       -      +
     93X  LEU*     3.1    18.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 90 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24X  GLN*     2.8    29.4    +      -       -      +
     25X  TYR*     3.2    19.6    +      -       +      -
     28X  HIS*     2.9    17.9    +      -       -      -
     32X  TRP*     4.7     3.5    -      -       -      -
     44X  GLU*     2.3    34.2    -      -       -      +
     86X  MET      2.9    16.9    +      -       -      +
     87X  LEU      3.6     7.0    -      -       -      +
     89X  CYS*     1.3    75.7    -      -       -      +
     91X  LEU*     1.3    62.9    +      -       -      +
     93X  LEU*     3.2     2.3    +      -       -      +
     94X  GLU*     3.0    27.0    +      -       -      +
    130X  HIS*     4.5     1.3    +      -       +      -
    134X  LEU*     3.8    23.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 91 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87X  LEU      3.0    16.0    +      -       -      +
     88X  GLN*     3.6    23.1    -      -       -      +
     90X  ASP*     1.3    78.3    -      -       -      +
     92X  ASN*     1.3    62.6    +      -       -      +
     94X  GLU*     3.2     1.5    +      -       -      -
     95X  LEU*     3.0    46.9    +      -       +      +
    131X  ILE*     4.1    31.9    -      -       +      -
    134X  LEU*     3.7    18.8    -      -       +      +
    135X  GLU*     4.3    22.4    -      -       +      +
    138X  LEU*     4.0    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 92 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78X  LEU*     4.1    14.9    -      -       +      +
     88X  GLN*     2.8    52.2    +      -       -      +
     89X  CYS*     3.8     9.6    -      -       -      +
     91X  LEU*     1.3    74.9    -      -       -      +
     93X  LEU*     1.3    62.9    +      -       -      +
     95X  LEU*     3.5    12.3    +      -       -      +
     96X  LYS*     3.3    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 93 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17X  ASN*     5.2     8.1    -      -       +      +
     20X  ILE*     3.8    26.7    -      -       +      -
     21X  ALA*     3.7    38.6    -      -       +      +
     24X  GLN*     3.6    25.1    -      -       -      +
     25X  TYR*     3.9    10.8    -      -       +      +
     76X  LYS      5.0     1.6    -      -       -      +
     78X  LEU*     4.3    12.5    -      -       +      +
     89X  CYS      3.1    17.5    +      -       -      +
     90X  ASP      3.6     4.0    -      -       -      +
     91X  LEU      3.1     0.2    -      -       -      -
     92X  ASN*     1.3    78.7    -      -       -      +
     94X  GLU*     1.3    56.7    +      -       -      +
     96X  LYS*     3.4    12.5    +      -       +      +
     97X  ALA*     2.9    29.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 94 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21X  ALA*     6.1     0.2    -      -       -      -
     25X  TYR*     2.8    19.5    +      -       -      +
     51X  GLU*     4.1     2.0    -      -       -      +
     90X  ASP      3.0    20.0    +      -       -      +
     91X  LEU*     3.2     3.1    +      -       -      +
     93X  LEU*     1.3    75.1    -      -       -      +
     95X  LEU*     1.3    60.1    +      -       -      +
     97X  ALA*     3.6     6.4    -      -       -      +
     98X  THR*     2.8    35.8    +      -       -      -
    127X  GLU*     2.7    42.7    -      -       -      +
    130X  HIS*     2.4    37.2    +      -       +      +
    131X  ILE*     3.6    21.8    -      -       +      -
    134X  LEU*     4.2     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 95 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88X  GLN*     5.6     0.9    -      -       -      +
     91X  LEU*     3.0    41.5    +      -       +      +
     92X  ASN*     3.8    13.5    -      -       -      +
     93X  LEU      3.4     0.2    -      -       -      -
     94X  GLU*     1.3    75.6    -      -       -      +
     96X  LYS*     1.3    60.8    +      -       -      +
     98X  THR*     3.6     9.4    +      -       +      +
     99X  LYS*     3.2    22.2    +      -       -      +
    131X  ILE*     4.1    20.4    -      -       +      -
    135X  GLU*     6.0     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 96 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13X  LYS*     4.6     8.9    -      -       -      +
     17X  ASN*     3.9    13.9    +      -       -      +
     92X  ASN      3.3    10.9    +      -       -      +
     93X  LEU*     3.5    13.9    -      -       +      +
     95X  LEU*     1.3    76.5    -      -       -      +
     97X  ALA*     1.3    67.2    +      -       -      +
     99X  LYS*     3.2    14.5    +      -       +      +
    100X  ASP*     2.8    52.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 97 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14X  ILE*     5.0     0.2    -      -       -      +
     17X  ASN*     3.9    27.4    +      -       +      +
     18X  GLU*     6.0     1.3    -      -       -      +
     51X  GLU*     6.2     0.2    -      -       -      +
     93X  LEU*     2.9    22.1    +      -       +      +
     94X  GLU*     3.2    17.7    +      -       -      +
     96X  LYS*     1.3    72.8    -      -       -      +
     98X  THR*     1.3    56.9    +      -       -      +
    100X  ASP*     3.3     4.2    +      -       -      +
    101X  LEU*     2.9    40.1    +      -       +      +
    127X  GLU*     5.0     5.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 98 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94X  GLU      2.8    16.8    +      -       -      +
     95X  LEU*     3.7    11.9    -      -       +      +
     97X  ALA*     1.3    73.3    -      -       -      +
     99X  LYS*     1.3    67.2    +      -       -      +
    101X  LEU*     3.2     3.9    +      -       -      +
    102X  ARG*     2.9    55.9    +      -       -      +
    124X  LEU*     3.6    21.0    -      -       -      +
    127X  GLU*     4.0    11.1    -      -       -      +
    128X  GLU*     4.6     2.1    -      -       -      +
    131X  ILE*     3.8    20.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 99 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95X  LEU      3.2    14.9    +      -       -      +
     96X  LYS*     3.2    18.4    +      -       +      +
     98X  THR*     1.3    81.0    -      -       +      +
    100X  ASP*     1.3    66.1    +      -       -      +
    102X  ARG*     3.3     9.6    +      -       -      +
    103X  GLU*     3.3    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 100 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10X  HIS*     4.7     2.4    +      -       -      -
     13X  LYS*     3.7    28.7    +      -       +      +
     14X  ILE*     3.6    13.4    -      -       +      +
     17X  ASN*     2.6    34.6    +      -       -      +
     96X  LYS*     2.8    45.1    +      -       -      +
     97X  ALA      3.3     2.4    +      -       -      +
     99X  LYS*     1.3    75.3    -      -       -      +
    101X  LEU*     1.3    61.0    +      -       -      +
    103X  GLU*     3.3    12.5    +      -       -      +
    104X  ALA*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 101 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14X  ILE*     3.4    40.4    -      -       +      -
     18X  GLU*     5.4     0.9    -      -       -      +
     97X  ALA*     2.9    23.3    +      -       +      +
     98X  THR*     3.2     7.6    +      -       -      +
    100X  ASP*     1.3    73.8    -      -       -      +
    102X  ARG*     1.3    67.3    +      -       -      +
    104X  ALA*     3.3     2.4    +      -       -      +
    105X  ILE*     3.0    30.0    +      -       +      +
    120X  LEU*     4.1    26.2    -      -       +      +
    123X  ILE*     3.9    10.8    -      -       +      -
    124X  LEU*     3.9    27.4    -      -       +      -
    127X  GLU*     3.8    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 102 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111N  VAL      5.4     0.4    -      -       -      -
    112N  HIS*     2.9    43.7    +      -       +      +
    113N  ASP*     4.2     8.1    -      -       -      +
    114N  TYR*     4.0    15.8    -      -       +      +
     98X  THR*     2.9    45.2    +      -       -      +
     99X  LYS*     3.7     7.8    -      -       -      +
    101X  LEU*     1.3    81.1    -      -       -      +
    103X  GLU*     1.3    61.9    +      -       +      +
    105X  ILE*     3.3     2.5    +      -       -      +
    106X  VAL*     3.1    28.0    +      -       -      +
    124X  LEU*     3.6    17.9    -      -       +      +
    128X  GLU*     2.9    31.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 103 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10X  HIS*     3.7    21.0    -      -       +      -
     13X  LYS*     4.9     7.1    +      -       -      -
     99X  LYS*     3.3    25.3    +      -       +      +
    100X  ASP*     3.3    18.5    +      -       -      +
    101X  LEU      3.2     0.6    -      -       -      -
    102X  ARG*     1.3    74.9    -      -       +      +
    104X  ALA*     1.3    65.7    +      -       -      +
    106X  VAL*     3.6     9.6    +      -       +      +
    107X  HIS*     3.2    17.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 104 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10X  HIS*     3.5    30.7    +      -       +      +
     14X  ILE*     4.2    13.0    -      -       +      -
    100X  ASP      2.9    16.3    +      -       -      +
    101X  LEU*     3.3     4.2    +      -       -      +
    103X  GLU*     1.3    76.2    -      -       -      +
    105X  ILE*     1.3    58.4    +      -       -      +
    107X  HIS*     3.2     3.8    +      -       -      +
    108X  CYS*     2.9    32.4    +      -       -      -
    120X  LEU*     3.5    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 105 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114N  TYR*     3.6    44.6    -      -       +      -
    101X  LEU      3.0    22.4    +      -       -      +
    102X  ARG      3.6     3.8    -      -       -      +
    103X  GLU      3.2     0.2    -      -       -      -
    104X  ALA*     1.3    74.9    -      -       -      +
    106X  VAL*     1.3    67.8    -      -       -      +
    108X  CYS*     3.2     6.9    +      -       -      +
    109X  GLU*     3.0    22.3    +      -       -      +
    117X  ARG*     4.0    28.4    -      -       +      +
    120X  LEU*     3.7    22.2    -      -       +      +
    121X  LYS*     4.1    24.0    -      -       +      +
    124X  LEU*     4.1    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 106 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112N  HIS*     3.7    23.1    -      -       +      +
    114N  TYR*     3.3    22.4    -      -       -      +
    102X  ARG      3.1    14.3    +      -       -      +
    103X  GLU*     3.6    11.0    -      -       +      +
    105X  ILE*     1.3    76.9    -      -       -      +
    107X  HIS*     1.3    64.2    +      -       -      +
    109X  GLU*     3.2     6.4    +      -       -      +
    110X  GLN*     3.0    48.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 107 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4X  ASP*     2.9    23.6    +      -       -      -
      6X  LYS*     3.2    26.4    -      -       +      +
      7X  VAL*     3.5    27.2    -      -       +      +
     10X  HIS*     3.8    32.1    -      +       +      +
    103X  GLU      3.2     5.1    +      -       -      +
    104X  ALA      3.2     5.6    +      -       -      +
    105X  ILE      3.2     0.8    -      -       -      -
    106X  VAL*     1.3    80.7    -      -       +      +
    108X  CYS*     1.4    62.7    +      -       -      +
    110X  GLN*     3.3    21.6    +      -       -      +
    111X  VAL*     3.1    40.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 108 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7X  VAL*     4.1    20.2    -      -       -      -
     10X  HIS*     6.0     1.1    -      -       -      -
     11X  LEU*     5.3     1.1    -      -       -      -
    104X  ALA*     2.9    21.8    +      -       -      +
    105X  ILE      3.2     4.7    +      -       -      +
    107X  HIS*     1.4    75.2    -      -       -      +
    109X  GLU*     1.3    63.3    +      -       -      +
    111X  VAL*     3.3     8.2    +      -       -      -
    112X  HIS      3.1     3.6    +      -       -      -
    113X  ASP*     2.8    44.5    +      -       +      +
    116X  SER*     3.9    20.0    -      -       -      -
    117X  ARG*     3.9    11.7    -      -       +      -
    120X  LEU*     3.8    21.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 109 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109N  GLU*     4.1     9.0    -      -       -      +
    109O  GLU*     4.0    12.5    -      -       -      +
    117O  ARG*     2.9    42.9    +      -       -      -
    105X  ILE      3.0    12.6    +      -       -      +
    106X  VAL*     3.5    10.8    -      -       -      +
    108X  CYS*     1.3    75.4    -      -       -      +
    110X  GLN*     1.3    65.7    +      -       +      +
    112X  HIS*     3.0    21.3    +      -       -      -
    114X  TYR*     3.5    17.0    +      -       -      -
    117X  ARG*     3.0    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 110 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106X  VAL*     3.0    34.8    +      -       +      +
    107X  HIS*     3.3    30.6    +      -       -      +
    109X  GLU*     1.3    79.3    -      -       +      +
    111X  VAL*     1.3    63.8    +      -       +      +
    112X  HIS*     3.6    15.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 111 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102O  ARG*     5.5     0.3    -      -       -      -
      4X  ASP*     4.0    22.9    -      -       +      +
      7X  VAL*     3.6    27.1    -      -       +      -
    107X  HIS*     3.1    39.2    +      -       +      +
    108X  CYS      3.9     4.0    -      -       -      +
    109X  GLU      3.2     0.4    -      -       -      -
    110X  GLN*     1.3    80.7    -      -       +      +
    112X  HIS*     1.3    73.5    +      -       -      +
    113X  ASP*     4.2     6.1    -      -       +      +
----------------------------------------------------------
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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