Contacts of the helix formed by residues 92 - 121 (chain C) in PDB entry 1N1Q


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with SER 92 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35C  ASN*     5.9     1.3    -      -       -      -
     90C  GLY      3.5     2.5    +      -       -      -
     91C  GLU*     1.3    74.7    -      -       -      +
     93C  ALA*     1.3    65.7    +      -       -      +
     94C  ALA*     3.6     7.0    +      -       -      +
     95C  GLU*     3.0    39.0    +      -       -      +
     96C  MET*     2.9    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  VAL*     3.8    21.8    -      -       +      -
     35C  ASN*     3.6    28.9    +      -       -      +
     38C  ASN*     5.7     3.1    -      -       +      -
     42C  LEU*     3.9    12.1    -      -       +      +
     92C  SER*     1.3    73.1    -      -       -      +
     94C  ALA*     1.3    62.6    +      -       -      +
     96C  MET*     3.2     9.4    +      -       -      +
     97C  VAL*     3.2    26.5    +      -       -      +
    147C  PHE*     5.8     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  SER*     3.2     7.0    +      -       -      +
     93C  ALA*     1.3    78.2    -      -       -      +
     95C  GLU*     1.3    59.7    +      -       +      +
     97C  VAL*     3.4     5.0    +      -       -      +
     98C  SER*     2.9    30.1    +      -       -      -
    147C  PHE*     5.3     4.0    -      -       +      -
    148C  LEU*     3.8    20.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  GLY      4.1     3.3    -      -       -      +
     91C  GLU*     3.6    16.9    -      -       +      +
     92C  SER*     3.0    39.1    +      -       -      +
     94C  ALA*     1.3    74.7    -      -       +      +
     96C  MET*     1.3    57.0    +      -       -      +
     98C  SER*     3.7     7.4    -      -       -      -
     99C  SER*     2.8    34.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  ASN*     5.1     0.7    -      -       -      +
     30C  PHE*     3.6    47.4    -      -       +      -
     33C  ASN*     3.6    17.0    -      -       +      +
     34C  VAL*     3.4    51.1    -      -       -      +
     46C  PHE*     3.8    15.0    -      -       +      -
     91C  GLU*     3.4    28.9    -      -       +      +
     92C  SER      2.9    15.5    +      -       -      +
     93C  ALA*     3.4     6.7    -      -       -      +
     94C  ALA      3.2     0.2    -      -       -      -
     95C  GLU*     1.3    74.4    -      -       -      +
     97C  VAL*     1.3    65.1    +      -       -      +
     99C  SER*     3.1     4.0    +      -       -      -
    100C  VAL*     3.0    27.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  LEU*     3.9    22.2    -      -       +      -
     46C  PHE*     4.5     7.2    -      -       +      -
     93C  ALA      3.2    14.6    +      -       -      +
     94C  ALA*     3.7     5.6    -      -       -      +
     96C  MET*     1.3    74.9    -      -       -      +
     98C  SER*     1.3    64.0    +      -       -      +
    100C  VAL*     3.1     9.8    +      -       -      +
    101C  VAL*     3.0    21.8    +      -       -      +
    144C  LEU*     3.6    45.8    -      -       +      +
    147C  PHE*     3.8    24.9    -      -       +      -
    148C  LEU*     3.7    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  ALA      2.9    18.6    +      -       -      -
     95C  GLU*     3.7     8.5    -      -       -      -
     97C  VAL*     1.3    76.8    -      -       -      +
     99C  SER*     1.3    58.3    +      -       -      +
    101C  VAL*     3.3     5.4    +      -       -      +
    102C  ASN*     3.0    39.5    +      -       -      +
    148C  LEU*     3.8    18.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  LYS*     3.5    29.1    +      -       -      -
     30C  PHE*     3.8    13.2    -      -       -      -
     91C  GLU*     5.4     4.3    +      -       -      -
     95C  GLU      2.8    19.5    +      -       -      -
     96C  MET      3.1     5.8    +      -       -      -
     98C  SER*     1.3    74.9    -      -       -      +
    100C  VAL*     1.3    60.0    +      -       -      +
    102C  ASN*     3.2    10.0    +      -       -      +
    103C  ASP*     2.9    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  LEU*     6.2     2.0    -      -       +      -
     27C  LEU*     4.1    11.7    -      -       +      -
     30C  PHE*     4.0    13.5    -      -       +      -
     46C  PHE*     4.0    24.0    -      -       +      -
     49C  LEU*     4.1     7.0    -      -       +      -
     96C  MET      3.0    14.2    +      -       -      +
     97C  VAL*     3.6     6.1    -      -       -      +
     99C  SER*     1.3    73.4    -      -       -      +
    101C  VAL*     1.3    61.3    +      -       -      +
    103C  ASP*     4.4     6.5    -      -       -      +
    104C  PHE*     2.8    57.5    +      -       +      +
    144C  LEU*     3.6    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  VAL      3.0    19.0    +      -       -      +
     98C  SER*     3.4     9.9    -      -       -      +
    100C  VAL*     1.3    78.8    -      -       -      +
    102C  ASN*     1.3    62.3    +      -       -      +
    104C  PHE*     3.9     3.2    -      -       -      +
    105C  VAL*     2.8    44.7    +      -       +      +
    141C  VAL*     4.6     7.0    -      -       +      +
    144C  LEU*     3.5    32.5    -      -       +      -
    145C  GLU*     3.9    36.1    -      -       +      +
    148C  LEU*     4.4     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  SER*     3.0    31.0    +      -       -      +
     99C  SER*     3.2    10.7    +      -       -      +
    101C  VAL*     1.3    82.1    -      -       -      +
    103C  ASP*     1.3    66.2    +      -       -      +
    105C  VAL*     3.3     6.8    +      -       -      +
    106C  ASP*     3.0    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  LEU*     3.8    10.5    -      -       +      +
     26C  LYS*     2.7    40.9    +      -       -      +
     30C  PHE*     5.8     0.3    -      -       -      -
     84C  ILE*     3.6    27.8    -      -       +      +
     85C  LYS*     5.1     2.9    +      -       -      +
     99C  SER*     2.9    21.4    +      -       -      +
    100C  VAL*     3.8     6.4    -      -       -      +
    102C  ASN*     1.3    79.2    -      -       -      +
    104C  PHE*     1.3    62.2    +      -       +      +
    106C  ASP*     3.1     8.1    +      -       -      +
    107C  LEU*     2.9    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  TRP*     3.8    27.8    -      +       -      -
     23C  LEU*     4.5    11.4    -      -       +      -
     27C  LEU*     5.3     3.6    -      -       +      -
     49C  LEU*     4.2    21.1    -      -       +      -
    100C  VAL*     2.8    45.7    +      -       +      +
    103C  ASP*     1.3    77.5    -      -       +      +
    105C  VAL*     1.3    58.1    +      -       -      +
    107C  LEU*     3.3    12.3    +      -       +      +
    108C  VAL*     2.9    34.2    +      -       -      +
    137C  LEU*     3.7    30.8    -      -       +      +
    140C  HIS*     3.7    35.0    -      +       +      -
    141C  VAL*     3.7    17.7    -      -       +      -
    144C  LEU*     4.5     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  VAL*     2.8    41.9    +      -       +      +
    102C  ASN*     3.6     6.7    -      -       -      +
    104C  PHE*     1.3    76.2    -      -       -      +
    106C  ASP*     1.3    64.4    +      -       -      +
    108C  VAL*     3.4     9.8    +      -       +      +
    109C  GLY*     3.3    17.0    +      -       -      -
    141C  VAL*     4.3    17.9    -      -       +      -
    145C  GLU*     5.0     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 106 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83C  SER*     3.8    19.2    +      -       -      +
     84C  ILE*     5.3     3.1    -      -       +      +
    102C  ASN      3.0    13.6    +      -       -      +
    103C  ASP*     3.1    11.4    +      -       -      +
    105C  VAL*     1.3    77.4    -      -       -      +
    107C  LEU*     1.3    64.5    +      -       +      +
    109C  GLY*     3.1     4.6    +      -       -      -
    110C  GLU*     3.0    41.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 107 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  GLN*     3.5     9.9    -      -       -      +
     19C  ASN*     3.4    30.3    -      -       +      +
     20C  TRP*     3.6    38.1    -      -       +      +
     23C  LEU*     3.6    20.4    -      -       +      -
     83C  SER*     4.9     0.7    -      -       -      +
     84C  ILE*     3.6    15.0    -      -       +      -
    103C  ASP      2.9    16.5    +      -       -      +
    104C  PHE*     3.6    10.8    -      -       +      +
    106C  ASP*     1.3    75.6    -      -       +      +
    108C  VAL*     1.3    54.5    +      -       -      +
    110C  GLU*     3.1     8.8    +      -       -      +
    111C  LEU*     2.7    44.0    +      -       +      +
    137C  LEU*     3.7    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 108 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  PHE      2.9    22.2    +      -       -      +
    105C  VAL*     3.6     9.9    -      -       +      +
    106C  ASP      3.3     0.2    -      -       -      -
    107C  LEU*     1.3    75.0    -      -       -      +
    109C  GLY*     1.3    63.8    +      -       -      +
    111C  LEU*     3.3     8.4    +      -       -      +
    112C  LYS*     3.0    48.6    +      -       -      +
    134C  GLU*     4.1     9.3    -      -       +      -
    137C  LEU*     4.0    19.5    -      -       +      -
    138C  GLU*     3.8    35.2    -      -       +      +
    141C  VAL*     5.3     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 109 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105C  VAL      3.3     6.8    +      -       -      -
    106C  ASP      3.1     7.4    +      -       -      -
    108C  VAL*     1.3    82.4    -      -       -      +
    110C  GLU*     1.3    60.7    +      -       -      +
    112C  LYS*     3.3    14.4    +      -       -      +
    113C  VAL*     3.3    25.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 110 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  ARG*     3.5    25.0    +      -       -      +
     16C  GLN*     2.9    30.4    +      -       -      +
     19C  ASN*     3.0    15.8    +      -       -      -
     83C  SER*     2.6    29.3    +      -       -      -
    106C  ASP*     3.0    30.4    +      -       -      +
    107C  LEU*     3.7     8.7    -      -       -      +
    109C  GLY*     1.3    75.7    -      -       -      +
    111C  LEU*     1.3    58.6    +      -       -      +
    113C  VAL*     3.3     8.1    +      -       -      +
    114C  ALA*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 111 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  GLN*     4.3    21.3    -      -       +      +
     20C  TRP*     5.9     1.6    -      -       -      +
     60C  LEU*     6.0     0.4    -      -       +      -
    107C  LEU*     2.7    29.1    +      -       +      +
    108C  VAL      3.7     4.5    -      -       -      +
    110C  GLU*     1.3    73.3    -      -       -      +
    112C  LYS*     1.3    57.5    +      -       -      +
    114C  ALA*     3.8     3.2    -      -       +      +
    115C  ARG*     2.9    37.3    +      -       -      +
    130C  LEU*     3.8    38.6    -      -       +      +
    133C  ILE*     3.6    23.1    -      -       +      -
    134C  GLU*     3.6    40.6    -      -       +      +
    137C  LEU*     3.9    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 112 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  VAL*     3.0    39.2    +      -       +      +
    109C  GLY*     3.6    12.3    -      -       -      +
    110C  GLU      3.2     0.2    -      -       -      -
    111C  LEU*     1.3    77.3    -      -       -      +
    113C  VAL*     1.3    62.0    +      -       +      +
    115C  ARG*     3.7    17.0    +      -       -      +
    116C  ASP*     3.1    22.7    +      -       -      +
    134C  GLU*     3.7    20.2    -      -       -      +
    138C  GLU*     4.4     3.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 113 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ILE*     4.2    27.6    -      -       +      -
      6C  GLN      5.9     0.4    -      -       -      +
     12C  LEU*     5.3     9.4    -      -       +      -
    109C  GLY      3.3    11.8    +      -       -      +
    110C  GLU*     3.3    11.0    +      -       -      +
    112C  LYS*     1.3    78.4    -      -       +      +
    114C  ALA*     1.3    63.1    +      -       -      +
    116C  ASP*     3.2     7.9    +      -       -      +
    117C  VAL*     3.1    29.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  VAL*     6.0     0.2    -      -       -      +
     12C  LEU*     4.1    36.5    -      -       +      +
     13C  LEU*     5.9     0.2    -      -       +      -
     16C  GLN*     5.6     5.8    -      -       +      +
    110C  GLU      2.9    17.0    +      -       -      +
    111C  LEU*     3.8     5.6    -      -       +      +
    113C  VAL*     1.3    77.2    -      -       -      +
    115C  ARG*     1.3    58.5    +      -       -      +
    117C  VAL*     3.2     3.6    +      -       -      +
    118C  ALA*     2.8    29.1    +      -       -      +
    130C  LEU*     3.7    23.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 115 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  LEU      2.9    21.3    +      -       -      +
    112C  LYS*     3.7    19.4    -      -       -      +
    113C  VAL      3.3     0.2    -      -       -      -
    114C  ALA*     1.3    76.9    -      -       -      +
    116C  ASP*     1.3    52.9    +      -       -      +
    118C  ALA*     3.2     4.8    +      -       -      +
    119C  ASP*     2.7    48.3    +      -       -      +
    127C  ALA*     3.7    15.7    +      -       +      +
    130C  LEU*     3.6    25.1    -      -       +      -
    131C  ASP*     3.9    35.7    +      -       -      +
    134C  GLU*     2.8    42.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 116 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112C  LYS      3.1    11.2    +      -       -      +
    113C  VAL*     3.2    11.4    +      -       -      +
    115C  ARG*     1.3    79.4    -      -       -      +
    117C  VAL*     1.3    64.0    +      -       -      +
    119C  ASP*     3.4     9.4    +      -       -      +
    120C  GLU*     3.0    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 117 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ILE*     5.0     8.1    -      -       +      -
      6C  GLN      3.7    10.5    -      -       -      +
      7C  GLN*     3.6    32.1    -      -       +      +
      9C  VAL*     4.4     8.3    -      -       +      -
     12C  LEU*     3.5    33.4    -      -       +      -
    113C  VAL*     3.1    20.2    +      -       +      +
    114C  ALA      3.2     2.9    +      -       -      +
    116C  ASP*     1.3    80.9    -      -       -      +
    118C  ALA*     1.3    64.0    +      -       -      +
    120C  GLU*     3.2     8.0    +      -       -      +
    121C  ALA*     3.1    21.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 118 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  VAL*     4.1    15.9    -      -       +      +
    114C  ALA      2.8    17.1    +      -       -      +
    115C  ARG*     3.6     4.3    -      -       -      +
    117C  VAL*     1.3    75.8    -      -       -      +
    119C  ASP*     1.3    62.2    +      -       -      +
    121C  ALA      3.0     7.6    +      -       -      -
    123C  ASP*     2.8    43.8    +      -       +      +
    126C  THR*     3.9    24.5    -      -       +      -
    127C  ALA*     3.9     8.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 119 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  ARG*     2.7    34.5    +      -       -      +
    116C  ASP*     3.6     9.4    -      -       -      +
    117C  VAL      3.3     0.2    -      -       -      -
    118C  ALA*     1.3    74.2    -      -       -      +
    120C  GLU*     1.3    56.8    +      -       -      +
    122C  ASP*     3.0    24.3    +      -       -      +
    123C  ASP      4.6     2.0    -      -       -      +
    124C  GLU*     2.6    33.4    -      -       -      +
    127C  ALA*     3.3    20.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 120 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  ASP*     3.0    20.0    +      -       -      +
    117C  VAL*     3.6     8.7    -      -       -      +
    118C  ALA      3.2     0.4    -      -       -      -
    119C  ASP*     1.3    75.3    -      -       -      +
    121C  ALA*     1.3    57.6    +      -       -      +
    122C  ASP*     3.1    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 121 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  GLN      5.6     2.2    -      -       -      +
      9C  VAL*     3.9    21.8    -      -       +      -
    117C  VAL*     3.1    11.5    +      -       +      +
    118C  ALA      3.0     9.6    +      -       -      +
    120C  GLU*     1.3    75.0    -      -       -      +
    122C  ASP*     1.3    71.8    +      -       -      +
    123C  ASP*     3.1     5.6    +      -       +      +
----------------------------------------------------------
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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