Contacts of the helix formed by residues 6 - 45 (chain C) in PDB entry 1QL2


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 6 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  ASP*     3.1    22.8    +      -       -      +
      5C  THR*     1.3    79.0    -      -       -      +
      7C  ALA*     1.3    65.4    +      -       -      +
      9C  GLU*     3.4    20.2    +      -       -      +
     10C  SER*     3.8     5.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 7 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  ASP      5.0     0.4    +      -       -      -
      6C  SER*     1.3    76.7    -      -       -      +
      8C  VAL*     1.3    62.5    +      -       +      +
     10C  SER*     3.0    12.2    +      -       -      +
     11C  ALA*     2.8    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 8 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  ASP      4.9     3.4    -      -       -      +
      5C  THR*     3.3    30.9    +      -       +      -
      6C  SER      3.3     0.4    -      -       -      -
      7C  ALA*     1.3    79.9    -      -       +      +
      9C  GLU*     1.3    64.8    +      -       -      +
     11C  ALA*     3.3    19.8    -      -       +      +
     12C  ILE*     3.4    17.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 9 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  THR*     3.0    37.6    +      -       +      +
      6C  SER*     3.5    11.9    -      -       -      +
      7C  ALA      3.2     0.8    -      -       -      -
      8C  VAL*     1.3    76.3    -      -       -      +
     10C  SER*     1.3    64.2    +      -       -      +
     12C  ILE*     3.0    27.3    +      -       -      +
     13C  THR*     4.1     2.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 10 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6C  SER      3.8     3.7    +      -       -      -
      7C  ALA*     3.0    21.7    +      -       -      -
      9C  GLU*     1.3    78.3    -      -       -      +
     11C  ALA*     1.3    56.7    +      -       -      +
     13C  THR*     2.8    35.2    +      -       -      -
     14C  ASP*     3.5     8.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 11 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  ALA      2.8    18.7    +      -       -      +
      8C  VAL*     3.3    19.5    -      -       +      +
     10C  SER*     1.3    77.9    +      -       -      +
     12C  ILE*     1.3    57.8    +      -       +      +
     14C  ASP*     2.9    42.4    +      -       -      +
     15C  GLY      3.6     2.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 12 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  VAL*     3.4    22.0    -      -       +      +
      9C  GLU*     3.0    12.8    +      -       -      +
     11C  ALA*     1.3    76.5    -      -       +      +
     13C  THR*     1.3    60.7    +      -       -      +
     14C  ASP      3.4     0.2    +      -       -      -
     15C  GLY*     3.4     3.7    +      -       -      +
     16C  GLN*     3.1    34.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 13 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  GLU      4.6     1.0    +      -       -      -
     10C  SER*     2.8    21.2    +      -       -      -
     12C  ILE*     1.3    76.8    -      -       -      +
     14C  ASP*     1.3    65.5    +      -       -      +
     16C  GLN*     3.1    33.7    +      -       +      +
     17C  GLY*     3.1    11.1    +      -       -      -
     20C  LYS*     5.1     4.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 14 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  SER*     3.5     8.3    -      -       -      +
     11C  ALA*     2.9    31.4    +      -       -      +
     13C  THR*     1.3    79.7    -      -       -      +
     15C  GLY*     1.3    59.8    +      -       -      +
     17C  GLY*     3.6     5.9    +      -       -      -
     18C  ASP*     3.1    15.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 15 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ALA      3.6     2.8    +      -       -      -
     12C  ILE      3.4     5.9    +      -       -      -
     13C  THR      3.3     0.2    -      -       -      -
     14C  ASP*     1.3    77.4    -      -       -      +
     16C  GLN*     1.3    58.0    +      -       -      +
     18C  ASP*     2.8    30.5    +      -       -      +
     19C  MET*     3.1    17.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 16 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  ILE*     3.1    28.0    +      -       +      +
     13C  THR*     3.1    32.5    +      -       +      +
     15C  GLY*     1.3    75.7    -      -       -      +
     17C  GLY*     1.3    64.6    +      -       -      +
     19C  MET*     2.9    24.7    +      -       +      +
     20C  LYS*     2.9    33.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 17 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13C  THR      3.1     9.7    +      -       -      -
     14C  ASP      3.6     3.1    +      -       -      -
     15C  GLY      3.2     0.8    +      -       -      -
     16C  GLN*     1.3    77.9    -      -       -      +
     18C  ASP*     1.3    51.8    +      -       -      +
     20C  LYS*     3.2    22.2    +      -       -      +
     21C  ALA*     2.7    36.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 18 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  ASP      3.1    20.1    -      -       -      +
     15C  GLY*     2.8    14.1    +      -       -      +
     17C  GLY*     1.3    74.3    -      -       -      +
     19C  MET*     1.3    58.7    +      -       +      +
     21C  ALA*     3.9     8.4    -      -       -      +
     22C  ILE*     3.0    45.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 19 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  GLY      3.1    14.0    +      -       -      +
     16C  GLN*     2.9    17.3    +      -       +      +
     18C  ASP*     1.3    79.3    -      -       -      +
     20C  LYS*     1.3    63.9    +      -       +      +
     22C  ILE*     4.6     7.5    -      -       -      +
     23C  GLY*     3.8    12.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 20 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13C  THR*     4.9     5.9    +      -       -      +
     16C  GLN*     2.9    46.4    +      -       -      +
     17C  GLY*     3.4    18.4    -      -       -      +
     19C  MET*     1.3    78.2    -      -       +      +
     21C  ALA*     1.3    64.1    +      -       -      +
     23C  GLY*     3.5     8.0    +      -       -      -
     24C  GLY*     3.8     6.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 21 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  GLY      2.7    17.6    +      -       -      +
     18C  ASP*     3.3    13.0    +      -       -      +
     20C  LYS*     1.3    75.1    -      -       -      +
     22C  ILE*     1.3    66.0    +      -       +      +
     23C  GLY      3.4     0.3    +      -       -      -
     24C  GLY*     3.4     7.8    +      -       -      -
     25C  TYR*     3.2    27.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 22 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  ASP*     3.0    27.0    +      -       +      +
     19C  MET*     4.6     7.9    -      -       -      +
     21C  ALA*     1.3    74.2    -      -       +      +
     23C  GLY*     1.3    65.4    +      -       -      +
     25C  TYR*     3.1    20.4    +      -       +      +
     26C  ILE*     3.3    27.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 23 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19C  MET      3.8     7.5    +      -       -      -
     20C  LYS      3.5     7.2    +      -       -      -
     21C  ALA      3.2     1.6    -      -       -      -
     22C  ILE*     1.3    77.3    -      -       -      +
     24C  GLY*     1.3    62.9    +      -       -      +
     25C  TYR      3.1     0.5    +      -       -      -
     26C  ILE*     3.2     8.0    +      -       -      +
     27C  VAL*     2.8    35.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 24 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  LYS      3.8     6.0    +      -       -      -
     21C  ALA      3.4     7.9    +      -       -      -
     22C  ILE      3.3     1.2    +      -       -      -
     23C  GLY*     1.3    74.1    -      -       -      +
     25C  TYR*     1.3    57.1    +      -       -      +
     27C  VAL*     3.7     5.7    -      -       -      +
     28C  GLY*     2.8    26.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 25 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21C  ALA*     3.2    32.8    -      -       +      -
     22C  ILE*     3.1    11.0    +      -       +      +
     24C  GLY*     1.3    73.0    -      -       -      +
     26C  ILE*     1.3    68.8    -      -       +      +
     28C  GLY*     3.2     3.8    +      -       -      -
     29C  ALA*     3.1    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 26 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22C  ILE*     3.4    30.3    -      -       +      +
     23C  GLY*     3.2     7.4    +      -       -      +
     25C  TYR*     1.3    77.7    -      -       +      +
     27C  VAL*     1.3    57.2    +      -       +      +
     29C  ALA*     2.8    28.4    +      -       +      +
     30C  LEU*     2.8    36.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 27 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  GLY*     2.8    26.5    +      -       -      +
     24C  GLY*     3.9     5.8    -      -       -      +
     26C  ILE*     1.3    75.3    -      -       +      +
     28C  GLY*     1.3    61.9    +      -       -      +
     30C  LEU*     3.5    22.2    -      -       +      +
     31C  VAL*     3.1    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 28 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  GLY      2.8    19.0    +      -       -      -
     25C  TYR*     3.2     3.8    +      -       -      -
     26C  ILE      3.1     0.4    -      -       -      -
     27C  VAL*     1.3    78.5    -      -       -      +
     29C  ALA*     1.3    60.1    +      -       -      +
     31C  VAL*     3.4    20.3    -      -       -      +
     32C  ILE*     3.5    10.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 29 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  TYR      3.1     9.6    +      -       -      +
     26C  ILE*     2.8    13.4    +      -       +      +
     28C  GLY*     1.3    72.8    -      -       -      +
     30C  LEU*     1.3    71.0    +      -       +      +
     31C  VAL      3.0     1.3    -      -       -      -
     32C  ILE*     2.8    27.3    +      -       -      +
     33C  LEU*     3.4    10.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 30 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  ILE*     2.8    32.2    +      -       +      +
     27C  VAL*     3.4    36.5    +      -       +      +
     29C  ALA*     1.3    77.4    -      -       +      +
     31C  VAL*     1.3    63.9    +      -       +      +
     33C  LEU*     2.9    34.7    +      -       +      +
     34C  ALA*     3.6     3.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 31 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  VAL*     3.1    23.6    +      -       +      +
     28C  GLY*     3.4    15.0    -      -       -      +
     29C  ALA      2.9     0.4    +      -       -      -
     30C  LEU*     1.3    76.3    -      -       +      +
     32C  ILE*     1.3    66.5    +      -       +      +
     34C  ALA*     2.9    21.5    +      -       +      +
     35C  VAL*     3.1    22.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 32 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28C  GLY      3.5    15.0    -      -       -      +
     29C  ALA*     2.8    26.3    +      -       -      +
     31C  VAL*     1.3    74.5    -      -       +      +
     33C  LEU*     1.3    62.5    +      -       +      +
     35C  VAL*     3.0     8.4    +      -       +      +
     36C  ALA*     2.7    46.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 33 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  ALA      3.4    15.0    -      -       -      +
     30C  LEU*     3.1    27.8    -      -       +      +
     32C  ILE*     1.3    83.8    -      -       +      +
     34C  ALA*     1.3    55.8    +      -       -      +
     36C  ALA*     4.7     2.7    -      -       -      -
     37C  GLY*     2.9    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 34 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  LEU      3.6     2.1    +      -       -      +
     31C  VAL*     2.9    18.0    +      -       +      +
     33C  LEU*     1.3    79.1    -      -       -      +
     35C  VAL*     1.3    60.4    +      -       +      +
     38C  LEU*     2.9    40.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 35 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  VAL*     3.4    26.2    -      -       +      +
     32C  ILE*     3.0     9.3    +      -       +      +
     34C  ALA*     1.3    77.6    -      -       +      +
     36C  ALA*     1.3    56.1    +      -       -      +
     38C  LEU*     2.9     6.7    +      -       -      +
     39C  ILE*     2.8    58.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 36 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  ILE*     2.7    32.6    +      -       +      +
     33C  LEU*     4.5     2.5    -      -       -      +
     35C  VAL*     1.3    75.0    -      -       -      +
     37C  GLY*     1.3    51.8    +      -       -      +
     39C  ILE*     3.0     7.7    +      -       -      +
     40C  TYR*     2.6    40.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 37 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  LEU      2.9    20.4    +      -       -      -
     36C  ALA*     1.3    77.2    -      -       -      +
     38C  LEU*     1.3    63.4    +      -       -      +
     40C  TYR*     3.1    26.7    -      -       -      +
     41C  SER*     3.2    14.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 38 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  ALA*     2.9    29.8    -      -       +      +
     35C  VAL*     2.9     4.9    +      -       -      +
     37C  GLY*     1.3    82.3    -      -       -      +
     39C  ILE*     1.3    59.9    +      -       +      +
     41C  SER*     3.9     9.3    -      -       -      +
     42C  MET*     2.9    32.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 39 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35C  VAL*     2.8    38.7    +      -       +      +
     36C  ALA*     3.7     6.7    -      -       -      +
     38C  LEU*     1.3    78.3    -      -       +      +
     40C  TYR*     1.3    56.6    +      -       -      +
     41C  SER      3.2     1.6    -      -       -      -
     42C  MET*     3.3    22.7    -      -       +      -
     43C  LEU*     2.9    47.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 40 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  LEU*     5.1    10.5    -      -       +      +
     36C  ALA*     2.6    22.2    +      -       +      +
     37C  GLY*     3.1    17.3    -      -       -      +
     39C  ILE*     1.3    70.8    -      -       -      +
     41C  SER*     1.3    60.3    +      -       -      +
     43C  LEU*     4.1     3.4    +      -       -      +
     44C  ARG*     3.0    55.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 41 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37C  GLY      3.2    12.4    +      -       -      -
     38C  LEU*     4.0    10.9    -      -       -      +
     40C  TYR*     1.3    81.4    -      -       -      +
     42C  MET*     1.3    66.7    +      -       -      +
     43C  LEU      3.2     0.2    -      -       -      -
     44C  ARG*     3.0    16.2    +      -       -      +
     45C  LYS*     2.8    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 42 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  LEU*     2.9    28.8    +      -       +      +
     39C  ILE*     3.1    28.2    +      -       +      +
     41C  SER*     1.3    75.2    -      -       -      +
     43C  LEU*     1.3    61.7    +      -       +      +
     45C  LYS*     4.8     1.3    -      -       -      -
     46C  ALA*     2.7    55.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 43 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  ILE*     2.9    28.5    +      -       +      +
     40C  TYR*     4.6     4.7    -      -       -      +
     41C  SER      3.2     0.4    -      -       -      -
     42C  MET*     1.3    78.4    -      -       +      +
     44C  ARG*     1.3    58.8    +      -       -      +
     46C  ALA      4.3     7.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 44 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  LEU*     4.0    23.6    -      -       -      +
     41B  SER*     5.4     8.7    +      -       -      -
     45B  LYS*     6.2     5.2    -      -       -      +
     40C  TYR*     3.0    48.4    +      -       -      +
     41C  SER*     3.1    25.1    -      -       -      +
     43C  LEU*     1.3    77.1    -      -       -      +
     45C  LYS*     1.3    65.1    +      -       +      +
     46C  ALA      4.3     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 45 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  SER*     2.8    25.2    +      -       -      +
     42C  MET*     4.1     1.8    -      -       -      +
     44C  ARG*     1.3    79.5    -      -       +      +
     46C  ALA*     1.3    60.9    +      -       -      +
----------------------------------------------------------
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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
------------------------------------------------------------
  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