Contacts of the helix formed by residues 4 - 29 (chain G) in PDB entry 3FKS


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 LYS 4 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  GLN      5.4     0.2    +      -       -      -
    333A  GLY*     5.0    11.7    +      -       -      -
    335A  ASP*     5.2    10.7    -      -       -      +
    316D  ASP*     5.0    12.6    -      -       -      +
    318D  THR*     4.6    22.6    -      -       -      +
      2G  THR*     3.6     6.9    -      -       +      +
      3G  LEU*     1.3    89.3    -      -       +      +
      5G  GLU*     1.3    57.3    +      -       -      +
      6G  VAL      3.1     2.5    -      -       -      -
      7G  GLU*     2.7    51.0    +      -       -      +
      8G  MET*     2.9    31.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 5 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333C  GLY      5.8     0.2    -      -       -      +
    334C  GLY      5.5     2.4    -      -       -      +
      1G  ALA      5.8     1.8    -      -       -      +
      2G  THR*     3.4    35.0    +      -       +      +
      4G  LYS*     1.3    78.6    -      -       -      +
      6G  VAL*     1.3    59.0    +      -       +      +
      8G  MET*     3.8    14.4    -      -       +      +
      9G  ARG*     3.0    62.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 6 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1G  ALA      3.6    25.1    -      -       -      +
      2G  THR      3.2    19.0    +      -       -      +
      3G  LEU      4.1     8.3    -      -       -      +
      5G  GLU*     1.3    78.3    -      -       +      +
      7G  GLU*     1.3    60.3    +      -       -      +
      9G  ARG*     4.1    10.9    -      -       -      +
     10G  LEU*     3.3    23.3    +      -       -      +
    251G  TYR*     4.9    13.0    -      -       +      +
    254G  LEU*     3.7    24.9    -      -       +      -
    255G  TYR*     4.4    21.1    -      -       +      +
    258G  THR*     4.2    18.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 7 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335A  ASP*     5.9     3.1    -      -       -      +
      3G  LEU      4.6     2.1    -      -       -      +
      4G  LYS*     2.7    42.3    +      -       -      +
      6G  VAL*     1.3    78.9    -      -       -      +
      8G  MET*     1.3    60.1    +      -       -      +
      9G  ARG      3.2     1.1    -      -       -      -
     10G  LEU*     3.2     8.3    +      -       +      +
     11G  LYS*     3.0    50.9    +      -       +      +
    255G  TYR*     3.8    37.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET 8 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4G  LYS*     2.9    36.3    +      -       +      +
      5G  GLU*     3.8    13.2    -      -       +      +
      7G  GLU*     1.3    74.0    -      -       -      +
      9G  ARG*     1.3    65.8    +      -       +      +
     10G  LEU      3.3     0.2    -      -       -      -
     11G  LYS*     3.7    17.2    -      -       +      +
     12G  SER*     3.2    24.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 9 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386F  ASP*     4.3    16.8    +      -       -      -
      5G  GLU*     3.0    51.4    +      -       +      +
      6G  VAL*     4.4    10.0    -      -       -      +
      8G  MET*     1.3    79.8    -      -       +      +
     10G  LEU*     1.3    63.5    +      -       -      +
     11G  LYS      3.2     0.4    -      -       -      -
     12G  SER*     3.4    17.7    +      -       -      +
     13G  ILE*     3.6    17.9    +      -       -      +
    247G  MET*     6.1     0.2    -      -       -      +
    251G  TYR*     3.0    48.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 10 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6G  VAL      3.3    16.5    +      -       -      +
      7G  GLU*     3.2    10.7    +      -       +      +
      9G  ARG*     1.3    78.7    -      -       -      +
     11G  LYS*     1.3    62.7    +      -       +      +
     13G  ILE*     3.8     5.0    -      -       -      +
     14G  LYS*     2.9    49.5    +      -       +      +
    248G  ILE*     4.4     9.9    -      -       -      +
    251G  TYR*     3.8    18.1    -      -       +      +
    252G  SER*     3.5    38.6    -      -       -      +
    255G  TYR*     4.1    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 11 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7G  GLU*     3.0    43.0    +      -       +      +
      8G  MET*     3.7    16.4    -      -       +      +
      9G  ARG      3.2     0.4    -      -       -      -
     10G  LEU*     1.3    79.1    -      -       +      +
     12G  SER*     1.3    57.6    +      -       -      +
     13G  ILE      2.9    10.7    +      -       -      -
     14G  LYS*     4.3     4.9    -      -       +      -
     15G  ASN*     3.1    35.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 12 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386D  ASP*     5.3     1.3    -      -       -      -
      8G  MET      3.2    12.9    +      -       -      -
      9G  ARG*     3.4    16.1    +      -       -      +
     11G  LYS*     1.3    76.7    -      -       -      +
     13G  ILE*     1.3    71.0    +      -       -      +
     16G  ILE*     2.9    30.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 13 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386F  ASP*     6.1     4.3    -      -       +      -
    390F  ILE*     4.4    15.0    -      -       +      -
      9G  ARG*     3.6    15.2    +      -       +      +
     10G  LEU*     4.1     4.5    -      -       -      +
     11G  LYS      2.9     0.4    -      -       -      -
     12G  SER*     1.3   107.8    +      -       -      +
     14G  LYS*     1.3    61.1    +      -       -      +
     15G  ASN      3.3     1.8    -      -       -      -
     16G  ILE*     3.6     8.7    -      -       +      +
     17G  GLU*     2.9    26.5    +      -       -      +
    244G  ALA*     4.5     1.8    -      -       -      +
    247G  MET*     3.7    43.1    -      -       +      -
    248G  ILE*     3.6    21.8    -      -       +      +
    251G  TYR*     6.1     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 14 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10G  LEU*     2.9    33.2    +      -       +      +
     11G  LYS*     4.0     5.4    -      -       -      +
     13G  ILE*     1.3    79.5    -      -       -      +
     15G  ASN*     1.3    65.7    +      -       -      +
     17G  GLU*     3.5    26.4    +      -       -      +
     18G  LYS*     3.6     4.7    +      -       -      +
    248G  ILE*     3.7    41.7    +      -       +      +
    249G  ASN*     5.5     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 15 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386D  ASP*     3.7    17.2    -      -       -      +
     11G  LYS*     3.1    23.3    +      -       -      +
     14G  LYS*     1.3    84.7    -      -       -      +
     16G  ILE*     1.3    61.4    +      -       -      +
     17G  GLU      3.2     1.1    -      -       -      -
     18G  LYS*     3.7    22.2    +      -       -      +
     19G  ILE*     3.2    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 16 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386D  ASP*     3.0    39.3    -      -       -      +
    390D  ILE*     5.7     9.6    -      -       +      -
    390F  ILE*     4.4    27.4    -      -       +      -
    391F  LEU*     6.4     0.7    -      -       +      -
     12G  SER*     2.9    34.3    -      -       -      +
     13G  ILE*     3.4     8.9    +      -       +      +
     14G  LYS      3.4     0.2    -      -       -      -
     15G  ASN*     1.3    75.5    -      -       -      +
     17G  GLU*     1.3    65.2    +      -       -      +
     18G  LYS      3.3     0.2    -      -       -      -
     19G  ILE*     3.2    13.0    -      -       +      +
     20G  THR*     3.2    32.0    -      -       +      +
    244G  ALA*     4.6     2.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 17 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13G  ILE      2.9    16.9    +      -       -      +
     14G  LYS*     3.5    18.3    +      -       -      +
     15G  ASN      3.2     0.2    -      -       -      -
     16G  ILE*     1.3    79.7    -      -       -      +
     18G  LYS*     1.3    70.1    +      -       -      +
     20G  THR*     3.3    12.8    +      -       -      -
     21G  LYS*     3.5    29.9    +      -       -      +
    241G  SER*     4.3    10.7    -      -       -      +
    244G  ALA*     3.5    28.5    -      -       +      +
    248G  ILE*     3.6    33.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 18 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ARG      6.0     0.2    +      -       -      -
    401A  GLU*     5.9     6.6    +      -       +      +
    404A  ALA*     4.8    19.3    -      -       +      +
     14G  LYS      3.6     6.9    +      -       -      +
     15G  ASN*     3.7    22.3    +      -       -      +
     16G  ILE      3.3     0.2    -      -       -      -
     17G  GLU*     1.3    89.9    +      -       -      +
     19G  ILE*     1.3    61.4    +      -       -      +
     21G  LYS*     3.2    17.8    +      -       -      +
     22G  THR*     2.7    37.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 19 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    404A  ALA*     5.8     8.3    -      -       +      +
    386D  ASP*     5.4     9.6    -      -       +      +
    387D  ILE*     3.5    33.4    -      -       +      -
    390D  ILE*     5.2    16.4    -      -       +      -
     15G  ASN      3.2    12.9    +      -       -      +
     16G  ILE*     3.2    31.4    -      -       +      +
     18G  LYS*     1.3    81.4    -      -       -      +
     20G  THR*     1.3    70.8    +      -       +      +
     22G  THR*     3.0    36.2    -      -       +      +
     23G  MET*     3.1    24.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 20 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390D  ILE*     5.9     5.2    -      -       +      -
    390F  ILE*     5.1     5.6    -      -       +      -
    391F  LEU*     5.1     9.0    -      -       +      -
     16G  ILE*     3.2    23.9    +      -       +      +
     17G  GLU*     3.3    12.3    +      -       -      -
     19G  ILE*     1.3    84.3    -      -       +      +
     21G  LYS*     1.3    59.7    +      -       -      +
     24G  LYS*     3.1    25.1    +      -       -      +
     83G  LEU*     6.3     0.2    -      -       +      -
    237G  MET*     3.5    28.3    -      -       +      +
    240G  ALA*     3.9    26.6    +      -       +      -
    241G  SER*     3.5    16.5    +      -       -      -
    244G  ALA*     4.6     0.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 21 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17G  GLU*     3.5    31.9    +      -       -      +
     18G  LYS*     3.2    17.5    +      -       -      +
     19G  ILE      3.2     0.6    -      -       -      -
     20G  THR*     1.3    81.6    +      -       -      +
     22G  THR*     1.3    60.4    +      -       -      +
     24G  LYS*     3.5    13.2    +      -       +      +
     25G  ILE*     3.2    34.8    +      -       +      +
    241G  SER*     4.0    17.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 22 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    404A  ALA*     4.8    15.3    -      -       +      +
    405A  PHE*     4.0    27.6    +      -       -      -
    407A  GLN      6.6     0.2    -      -       -      -
     18G  LYS*     2.7    18.5    +      -       -      -
     19G  ILE*     3.0    42.6    -      -       +      +
     21G  LYS*     1.3    78.0    -      -       -      +
     23G  MET*     1.3    64.7    +      -       +      +
     24G  LYS      3.3     0.2    -      -       -      -
     25G  ILE*     3.8    10.4    +      -       -      +
     26G  VAL*     3.1    28.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 23 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    407A  GLN      5.9     6.1    -      -       -      -
    387D  ILE*     4.2    23.3    -      -       +      -
    390D  ILE*     4.3    11.2    -      -       +      -
    391D  LEU*     3.5    31.9    -      -       +      -
    395D  GLU*     5.2     5.6    -      -       +      -
     19G  ILE*     3.1    19.6    +      -       +      +
     21G  LYS      3.3     0.2    -      -       -      -
     22G  THR*     1.3    84.0    -      -       +      +
     24G  LYS*     1.3    60.3    +      -       -      +
     25G  ILE      3.2     0.9    -      -       -      -
     26G  VAL*     3.6    12.2    -      -       +      +
     27G  ALA*     2.9    29.3    +      -       -      +
     81G  LYS*     6.1     1.6    -      -       -      -
     83G  LEU*     4.9     2.5    -      -       -      -
    233G  ARG*     4.9     6.1    -      -       -      -
    237G  MET*     3.3    39.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 24 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386E  ASP*     5.2    13.3    -      -       -      +
     20G  THR      3.1    19.1    +      -       -      +
     21G  LYS*     3.6    15.3    -      -       +      +
     22G  THR      3.3     0.2    -      -       -      -
     23G  MET*     1.3    76.9    -      -       -      +
     25G  ILE*     1.3    62.7    +      -       +      +
     27G  ALA*     3.4     5.5    +      -       -      +
     28G  SER*     2.8    36.1    +      -       -      -
    234G  ARG*     3.7    40.3    -      -       +      +
    237G  MET*     4.1    14.1    -      -       +      +
    238G  ASP*     3.1    46.4    -      -       -      +
    241G  SER*     4.7     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 25 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  PHE*     4.1    30.7    -      -       +      -
    390E  ILE*     4.0    20.0    -      -       +      -
     21G  LYS*     3.2    27.1    +      -       +      +
     22G  THR*     3.9    10.1    -      -       -      +
     23G  MET      3.2     0.4    -      -       -      -
     24G  LYS*     1.3    81.3    -      -       +      +
     26G  VAL*     1.3    56.9    +      -       -      +
     28G  SER*     4.2     5.2    -      -       -      -
     29G  THR*     2.6    44.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 26 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  PHE*     4.6    17.7    -      -       +      -
    407A  GLN      4.9    13.0    -      -       -      +
    410A  SER*     4.8     5.2    -      -       -      +
     22G  THR*     3.1    18.8    +      -       +      +
     23G  MET*     3.4    15.2    +      -       +      +
     24G  LYS      3.4     0.4    -      -       -      -
     25G  ILE*     1.3    77.0    -      -       -      +
     27G  ALA*     1.3    58.6    +      -       -      +
     29G  THR*     3.6    10.0    -      -       +      +
     30G  ARG*     3.0    62.0    +      -       -      +
    233G  ARG*     6.5     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 27 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23G  MET      2.9    17.5    +      -       -      +
     24G  LYS      3.8     3.6    -      -       -      +
     26G  VAL*     1.3    77.8    -      -       -      +
     28G  SER*     1.3    61.1    +      -       -      +
     30G  ARG*     3.7     3.5    +      -       -      +
     31G  LEU*     3.4     5.9    +      -       -      +
    230G  ILE*     3.1    37.4    -      -       +      +
    233G  ARG*     3.8    20.6    -      -       +      +
    234G  ARG*     3.7    28.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 28 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    387E  ILE*     5.6     6.1    -      -       -      +
    390E  ILE*     4.0    19.9    -      -       -      +
    391E  LEU*     5.9     2.9    -      -       -      +
     24G  LYS*     2.8    25.4    +      -       -      -
     25G  ILE*     3.1     5.8    +      -       -      -
     27G  ALA*     1.3    78.5    -      -       -      +
     29G  THR*     1.3    59.2    +      -       -      +
     30G  ARG      3.2     0.7    -      -       -      -
     31G  LEU*     3.4    24.1    -      -       -      +
     32G  SER      4.5     0.9    +      -       -      -
    234G  ARG*     3.8    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 29 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  PHE*     6.4     0.7    -      -       +      -
    411A  ASP      5.9     2.9    -      -       -      +
    413A  ASP*     5.4     9.4    +      -       -      +
    390E  ILE*     3.3    32.0    -      -       -      +
     25G  ILE*     2.6    32.0    +      -       +      +
     26G  VAL*     3.6    13.7    -      -       +      +
     28G  SER*     1.3    71.6    -      -       -      +
     30G  ARG*     1.3    60.2    +      -       +      +
     31G  LEU      3.3     2.7    -      -       -      -
     32G  SER*     3.0    19.8    +      -       -      -
     33G  LYS*     5.8     0.2    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il