Contacts of the helix formed by residues 96 - 118 (chain C) in PDB entry 3MQT


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 GLY 96 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95C  ARG*     1.3    70.9    -      -       -      +
     97C  LEU*     1.3    57.4    +      -       -      -
     98C  GLY      3.1     2.9    -      -       -      -
     99C  LEU*     2.6    33.3    +      -       -      +
    100C  PHE*     3.5    13.8    +      -       -      -
    262C  THR*     3.1    20.0    +      -       -      -
    285C  ARG*     6.1     0.4    -      -       -      -
     93F  GLY      4.7     5.8    -      -       -      -
     95F  ARG*     3.5    18.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  PRO*     4.3    11.0    -      -       +      -
     49C  CYS*     4.2    10.5    -      -       -      -
     50C  MET*     3.6    32.2    -      -       +      +
     53C  PHE*     3.7    31.0    -      -       +      -
     95C  ARG      3.9     0.6    +      -       -      -
     96C  GLY*     1.3    70.3    -      -       -      -
     98C  GLY*     1.3    57.4    +      -       -      +
    100C  PHE*     2.8    43.6    +      -       +      +
    101C  ALA      3.5     2.9    +      -       -      -
     53F  PHE*     4.0    30.3    -      -       +      -
     92F  ILE*     4.0    18.3    +      -       +      +
     95F  ARG      4.4     3.0    +      -       -      -
     97F  LEU*     4.4    24.0    -      -       +      +
     98F  GLY      5.1     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  PHE*     3.6    30.7    -      -       -      -
     89C  THR*     5.5     0.7    +      -       -      -
     92C  ILE      4.2     4.0    +      -       -      -
     93C  GLY*     3.9    19.1    -      -       -      -
     95C  ARG      4.3     2.6    +      -       -      -
     96C  GLY      2.9     1.6    +      -       -      -
     97C  LEU*     1.3    79.6    -      -       -      +
     99C  LEU*     1.3    59.5    +      -       -      +
    101C  ALA*     3.4    13.7    +      -       -      +
    102C  ILE*     3.4    16.8    +      -       -      +
     97F  LEU*     5.2     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  TYR*     3.6    24.5    -      -       +      +
     86C  TYR*     4.3     7.9    -      -       +      -
     94C  MET*     2.9    48.5    -      -       -      +
     95C  ARG*     3.3    10.5    +      -       -      +
     96C  GLY      2.6    17.7    +      -       -      +
     98C  GLY*     1.3    71.0    -      -       -      -
    100C  PHE*     1.3    57.9    +      -       -      -
    101C  ALA      3.2     0.7    -      -       -      -
    102C  ILE*     3.8    16.1    -      -       +      +
    103C  SER*     2.8    31.4    +      -       -      -
    262C  THR*     4.0     4.9    -      -       -      +
    263C  THR*     3.7    11.2    -      -       +      -
    285C  ARG      3.3    12.6    -      -       -      +
    286C  CYS      3.6    17.3    -      -       -      +
    287C  GLY*     3.7     9.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43C  ALA*     3.2     9.8    -      -       -      +
     44C  ASP*     3.3    36.1    -      -       +      +
     45C  GLY*     4.0     5.8    -      -       -      -
     50C  MET*     3.8     2.2    -      -       +      -
     96C  GLY*     3.6    17.0    -      -       -      -
     97C  LEU*     2.8    33.4    +      -       +      +
     99C  LEU*     1.3    77.4    -      -       -      +
    101C  ALA*     1.3    56.8    +      -       -      +
    103C  SER*     3.2     4.2    +      -       -      -
    104C  GLY      3.0    25.3    +      -       -      -
    262C  THR*     4.0    10.1    -      -       +      -
    284C  ASN      3.7    11.2    -      -       -      +
    285C  ARG*     3.3    58.3    -      -       +      -
     91F  TRP      3.6    10.8    -      -       -      -
     92F  ILE*     4.2    20.2    -      -       +      -
     93F  GLY      5.9     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  PHE*     3.9    25.6    -      -       +      -
     43C  ALA*     4.2     0.9    -      -       -      -
     50C  MET*     3.8     7.8    -      -       +      +
     53C  PHE*     3.6    33.7    -      -       +      -
     66C  ILE*     3.9    10.3    -      -       +      -
     97C  LEU      3.5     1.2    +      -       -      -
     98C  GLY      3.4     8.3    +      -       -      +
     99C  LEU      3.2     0.4    -      -       -      -
    100C  PHE*     1.3    79.1    -      -       -      +
    102C  ILE*     1.3    60.8    -      -       -      +
    104C  GLY      3.4     1.4    +      -       -      -
    105C  ILE*     3.3    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  ILE*     3.5    22.2    -      -       +      -
     82C  TYR*     3.8    22.4    -      -       +      +
     85C  MET*     4.0    22.1    -      -       +      +
     86C  TYR*     3.8    33.9    -      -       +      +
     89C  THR*     4.0    10.8    -      -       -      +
     94C  MET      5.6     2.5    -      -       -      +
     98C  GLY      3.4    13.3    +      -       -      +
     99C  LEU*     3.8    22.7    -      -       +      +
    100C  PHE      3.3     0.4    -      -       -      -
    101C  ALA*     1.3    77.7    -      -       -      +
    103C  SER*     1.3    56.3    +      -       -      +
    105C  ILE*     3.4     1.7    +      -       -      +
    106C  ASP*     2.9    28.8    +      -       -      +
    287C  GLY*     3.7    15.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  GLU      4.6     1.1    -      -       -      -
     99C  LEU      2.8    13.1    +      -       -      -
    100C  PHE      3.2     9.6    -      -       -      -
    102C  ILE*     1.3    77.2    -      -       -      +
    104C  GLY*     1.3    63.8    +      -       -      +
    106C  ASP*     3.4     1.7    +      -       -      +
    107C  MET*     2.9    25.3    +      -       -      +
    283C  TYR      3.5     9.7    -      -       -      +
    284C  ASN      3.4    21.3    -      -       -      -
    285C  ARG      3.0     8.7    -      -       -      -
    287C  GLY      2.8    39.3    +      -       -      -
    288C  GLY*     3.3     4.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  VAL*     3.8    10.2    -      -       -      +
     41C  GLY*     3.7     8.0    -      -       -      -
     42C  GLU      3.3    30.7    +      -       -      -
     43C  ALA*     3.9     6.3    -      -       -      -
    100C  PHE      3.0    12.1    +      -       -      -
    101C  ALA      3.4     3.1    +      -       -      -
    102C  ILE      3.4     0.2    -      -       -      -
    103C  SER*     1.3    75.5    -      -       -      +
    105C  ILE*     1.3    63.1    +      -       -      +
    107C  MET*     3.4     3.9    +      -       -      +
    108C  ALA*     3.1    18.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  VAL*     4.2    10.5    -      -       +      -
     12C  PHE*     3.8    25.8    -      -       +      -
     29C  VAL*     3.8    12.1    -      -       +      +
     31C  VAL*     4.5     7.4    -      -       +      -
     66C  ILE*     3.8    33.2    -      -       +      +
     67C  LYS*     5.0     2.5    -      -       -      +
     70C  VAL*     4.4    13.2    -      -       +      -
     85C  MET*     3.6    31.9    -      -       -      -
    101C  ALA      3.3     8.5    +      -       -      +
    102C  ILE      3.9     1.8    -      -       -      +
    103C  SER      3.3     0.4    -      -       -      -
    104C  GLY*     1.3    72.4    -      -       -      +
    106C  ASP*     1.3    67.6    +      -       -      +
    108C  ALA*     3.1     4.7    +      -       -      +
    109C  LEU*     2.9    38.2    +      -       +      +
----------------------------------------------------------
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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
----------------------------------------------------------
     78C  PHE*     4.8     5.0    -      -       -      +
     82C  TYR*     4.3     9.6    +      -       -      +
     85C  MET*     4.2     8.2    -      -       +      +
    102C  ILE*     2.9    18.9    +      -       +      +
    103C  SER      3.6     4.0    -      -       -      +
    105C  ILE*     1.3    79.1    -      -       -      +
    107C  MET*     1.3    61.8    +      -       -      +
    109C  LEU*     3.3    19.5    +      -       -      +
    110C  TYR*     3.2    26.6    +      -       -      -
    287C  GLY      3.7    12.1    -      -       -      +
    288C  GLY      3.5     0.2    -      -       -      -
    289C  VAL      3.0    28.2    +      -       -      -
    290C  THR*     2.7    35.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 107 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  LEU      4.2     0.7    -      -       -      -
     41C  GLY*     3.9     2.7    -      -       -      -
     42C  GLU      3.8    21.8    -      -       -      +
    103C  SER      2.9    14.0    +      -       -      +
    104C  GLY      3.5     5.4    -      -       -      +
    106C  ASP*     1.3    78.0    +      -       -      +
    108C  ALA*     1.3    62.0    +      -       -      +
    110C  TYR*     3.2    19.6    +      -       -      +
    111C  ASP      3.3     8.1    +      -       -      -
    283C  TYR*     4.0    32.8    -      -       +      +
    284C  ASN*     4.1     1.8    -      -       +      -
    289C  VAL*     4.9    12.3    -      -       +      +
    315C  ILE*     3.8    30.7    -      -       -      +
    316C  THR*     3.9    16.2    -      -       -      +
    319C  ALA*     4.0    20.6    -      -       +      -
    369C  LEU*     3.8    21.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  VAL*     3.8     4.7    -      -       +      +
     31C  VAL*     3.7    23.1    -      -       +      -
     39C  GLY*     3.6     9.2    -      -       -      +
     40C  LEU      3.6    15.3    -      -       -      -
     41C  GLY*     3.5    16.7    -      -       -      +
    104C  GLY      3.1     9.7    +      -       -      +
    105C  ILE      3.1     8.6    +      -       -      +
    107C  MET*     1.3    76.4    -      -       -      +
    109C  LEU*     1.3    57.9    +      -       -      +
    111C  ASP*     3.3     2.6    +      -       -      +
    112C  LEU*     2.8    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 109 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  ILE*     3.3    31.4    -      -       +      -
     31C  VAL*     3.9    20.0    -      -       +      -
     70C  VAL*     4.3    11.4    -      -       +      -
     75C  PRO*     4.0    18.3    -      -       +      +
     78C  PHE*     3.8     9.6    -      -       +      -
     81C  ASN*     4.4    17.0    -      -       +      +
     85C  MET*     4.3    14.6    -      -       +      -
    105C  ILE*     2.9    35.0    +      -       +      +
    106C  ASP*     3.7    11.4    -      -       -      +
    107C  MET      3.2     0.4    -      -       -      -
    108C  ALA*     1.3    75.0    -      -       -      +
    110C  TYR*     1.3    58.7    +      -       -      +
    112C  LEU*     4.4     2.9    -      -       +      +
    113C  ALA*     2.8    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 110 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  PHE*     3.5    49.2    -      +       -      +
    106C  ASP*     3.2    32.8    +      -       -      -
    107C  MET*     3.2     7.4    +      -       -      +
    109C  LEU*     1.3    73.7    -      -       -      +
    111C  ASP*     1.3    64.8    +      -       -      +
    114C  GLY*     3.1    20.8    +      -       -      -
    121C  ALA*     4.2    16.2    -      -       +      +
    124C  LEU*     4.0    22.3    -      -       +      +
    125C  MET*     4.2    27.8    -      -       +      -
    289C  VAL*     3.6    22.7    -      -       +      -
    290C  THR*     2.6    38.2    +      -       -      +
    293C  LEU*     4.2     9.0    -      -       +      +
    368C  GLY*     4.0     3.8    -      -       -      -
    369C  LEU*     4.8     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 111 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  GLY*     3.4     4.7    -      -       -      -
     40C  LEU*     2.8    43.6    +      -       -      +
    107C  MET      3.3     3.7    +      -       -      +
    108C  ALA      3.3     8.5    +      -       -      +
    110C  TYR*     1.3    79.3    -      -       -      +
    112C  LEU*     1.3    63.3    +      -       -      +
    114C  GLY      3.4     0.2    +      -       -      -
    115C  LYS*     3.1    41.2    +      -       -      +
    368C  GLY*     3.4     7.8    -      -       -      -
    369C  LEU*     2.7    47.1    +      -       +      +
    370C  GLY      4.0     2.9    +      -       -      -
    371C  ILE*     4.5     8.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 112 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  ILE*     4.1     7.2    -      -       +      -
     31C  VAL*     3.8    32.3    -      -       +      +
     33C  ASP*     3.9    16.2    -      -       +      +
     37C  VAL*     3.5    40.8    -      -       +      +
     38C  TYR      3.8     7.0    -      -       -      -
     39C  GLY*     3.7    10.7    -      -       -      +
     75C  PRO*     3.9    19.7    -      -       +      -
    108C  ALA      2.8    20.2    +      -       -      +
    109C  LEU*     4.0     4.3    -      -       +      +
    111C  ASP*     1.3    70.2    -      -       -      +
    113C  ALA*     1.3    67.4    +      -       -      +
    115C  LYS*     3.0     4.6    +      -       -      -
    116C  GLN*     2.9    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 113 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  PRO*     3.9    21.7    -      -       -      +
     76C  LEU*     4.1     9.4    -      -       +      +
     78C  PHE*     3.8    23.1    -      -       +      -
    109C  LEU      2.8    22.2    +      -       -      +
    112C  LEU*     1.3    73.9    -      -       -      +
    114C  GLY*     1.3    61.6    +      -       -      +
    116C  GLN*     3.4     8.6    +      -       -      +
    117C  LEU*     3.1    30.1    +      -       +      +
    124C  LEU*     3.9     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110C  TYR      3.1    11.1    +      -       -      -
    111C  ASP      3.7     1.6    -      -       -      -
    112C  LEU      3.2     0.2    -      -       -      -
    113C  ALA*     1.3    77.9    -      -       -      +
    115C  LYS*     1.3    51.3    +      -       -      +
    117C  LEU      3.4     0.3    +      -       -      -
    118C  GLY*     2.7    30.0    +      -       -      -
    119C  VAL*     2.9    32.6    +      -       -      +
    124C  LEU*     3.5    12.8    -      -       -      +
    367C  PRO*     3.8     0.7    -      -       -      +
    368C  GLY*     3.5    12.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 115 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37C  VAL*     3.7    18.3    -      -       +      +
     38C  TYR*     2.8    51.7    +      -       -      +
     40C  LEU*     5.7     0.6    -      -       -      +
    111C  ASP*     3.1    35.4    +      -       -      +
    112C  LEU*     3.0     6.7    +      -       -      +
    114C  GLY*     1.3    71.5    -      -       -      +
    116C  GLN*     1.3    67.2    +      -       -      +
    118C  GLY*     2.9    13.3    +      -       -      -
    367C  PRO*     4.0    24.3    -      -       +      +
    371C  ILE      5.8     5.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 116 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ALA*     3.0    37.6    +      -       +      +
     33C  ASP*     2.7    36.7    +      -       -      +
     37C  VAL*     4.7     6.2    -      -       +      +
     74C  ASP*     4.3     4.0    -      -       -      +
     75C  PRO*     3.4    28.5    -      -       -      +
     76C  LEU*     6.0     0.3    -      -       -      +
    112C  LEU*     2.9    23.8    +      -       +      +
    113C  ALA*     3.7     8.0    -      -       -      +
    115C  LYS*     1.3    76.3    -      -       -      +
    117C  LEU*     1.3    68.4    +      -       +      +
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Residues in contact with LEU 117 (chain C). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
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     76A  LEU*     5.2     0.7    -      -       +      -
    117A  LEU*     4.2    44.8    -      -       +      +
    119A  VAL*     5.8     4.3    -      -       +      -
     76C  LEU*     4.3    22.7    -      -       +      -
    113C  ALA*     3.1    19.9    +      -       -      +
    116C  GLN*     1.3    85.9    -      -       +      +
    118C  GLY*     1.3    63.0    +      -       -      +
    119C  VAL*     3.6    20.2    +      -       +      +
    124C  LEU*     3.9    27.1    -      -       +      -
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Residues in contact with GLY 118 (chain C). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
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    114C  GLY      2.7    11.0    +      -       -      -
    115C  LYS      2.9    11.2    +      -       -      -
    117C  LEU*     1.3    79.1    -      -       -      +
    119C  VAL*     1.3    59.4    +      -       -      +
    120C  PRO*     4.7     1.0    -      -       -      +
    365C  ASP      5.5     0.5    -      -       -      +
    367C  PRO*     4.1    20.9    -      -       -      +
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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
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  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) +   -    +    +   +   +    +    -
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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