Contacts of the helix formed by residues 109 - 138 (chain K) in PDB entry 2EHO


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 109 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160H  ASP*     3.1    40.2    +      -       -      +
    163H  ALA*     6.3     2.5    -      -       +      -
     67K  ASP*     6.2     0.4    -      -       -      +
     68K  VAL*     4.1    22.1    -      -       +      +
    107K  ILE      3.4     1.4    +      -       -      -
    108K  PRO*     1.3    84.1    -      -       +      +
    110K  ALA*     1.3    66.1    +      -       -      +
    111K  ASP*     3.3    16.4    -      -       -      +
    112K  GLU*     3.0    35.9    +      -       +      +
    113K  ILE*     3.4     8.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 110 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100K  LEU*     4.3    13.4    -      -       +      +
    104K  SER*     3.7    31.4    -      -       -      +
    107K  ILE*     3.3    18.0    +      -       +      +
    108K  PRO      2.9     6.4    +      -       -      -
    109K  LYS*     1.3    73.1    -      -       -      +
    111K  ASP*     1.3    57.5    +      -       -      +
    112K  GLU      2.6    14.2    +      -       -      -
    113K  ILE*     2.6    23.8    +      -       -      +
    114K  ARG*     3.2     9.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 111 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109K  LYS*     4.0    13.6    -      -       -      +
    110K  ALA*     1.3    80.1    +      -       -      +
    112K  GLU*     1.3    71.2    +      -       -      +
    114K  ARG*     4.0    14.3    -      -       -      +
    115K  THR*     3.7    13.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 112 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160H  ASP*     5.1     3.1    -      -       -      +
     68K  VAL*     3.0    38.1    -      -       +      +
     72K  GLU*     3.8     7.1    -      -       -      +
    109K  LYS*     3.0    31.1    +      -       +      +
    110K  ALA      2.6     6.3    +      -       -      -
    111K  ASP*     1.3    80.4    +      -       -      +
    113K  ILE*     1.3    61.3    -      -       -      +
    114K  ARG      3.2     2.0    -      -       -      -
    115K  THR*     3.4     9.2    +      -       -      +
    116K  LEU*     3.2    26.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 113 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66K  MSE      3.7    34.1    -      -       +      +
     67K  ASP*     4.1     0.9    -      -       -      -
     68K  VAL*     3.5    40.6    -      -       +      +
     71K  LEU*     3.5    21.3    -      -       +      -
     96K  THR*     4.8     2.0    -      -       +      -
    100K  LEU*     4.6    10.5    -      -       +      -
    107K  ILE*     4.4     7.0    -      -       +      -
    108K  PRO*     3.8    13.7    -      -       +      +
    109K  LYS*     3.4    13.2    -      -       +      +
    110K  ALA*     2.6    18.3    +      -       -      +
    112K  GLU*     1.3    70.6    -      -       -      +
    114K  ARG*     1.3    64.0    +      -       -      +
    116K  LEU*     3.3     2.9    +      -       -      +
    117K  VAL*     2.9    36.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 114 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96K  THR*     5.0     1.8    -      -       +      -
    100K  LEU*     3.6    27.5    -      -       +      +
    101K  ASN*     5.9     1.4    +      -       -      -
    110K  ALA      3.2     3.6    +      -       -      +
    111K  ASP*     4.0    13.5    -      -       -      +
    113K  ILE*     1.3    79.3    -      -       -      +
    115K  THR*     1.3    59.7    +      -       -      +
    117K  VAL*     3.3     3.7    +      -       -      +
    118K  LYS*     2.8    54.8    +      -       +      +
    190L  GLU*     4.4    22.8    +      -       -      +
    191L  LYS*     5.7     5.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 115 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75K  ARG*     5.6     1.1    -      -       -      +
    111K  ASP      3.7    10.4    +      -       -      -
    112K  GLU*     3.4    14.3    +      -       -      -
    113K  ILE      3.3     0.4    -      -       -      -
    114K  ARG*     1.3    80.4    +      -       -      +
    116K  LEU*     1.3    63.6    +      -       +      +
    118K  LYS*     3.2     8.5    +      -       +      +
    119K  ASP*     2.7    46.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 116 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68K  VAL*     3.4    52.3    -      -       +      +
     71K  LEU*     3.9    19.5    -      -       +      +
     72K  GLU*     3.4    32.8    -      -       +      +
     75K  ARG*     4.4    22.0    +      -       +      +
    112K  GLU*     3.2    17.5    +      -       +      +
    113K  ILE      3.3     6.5    +      -       -      +
    115K  THR*     1.3    82.0    -      -       +      +
    117K  VAL*     1.3    57.5    +      -       -      +
    119K  ASP*     3.5     4.8    +      -       -      +
    120K  MSE      2.9    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 117 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65K  TRP*     5.1     2.9    -      -       +      -
     71K  LEU*     3.9    25.1    -      -       +      -
     92K  TYR*     4.0    23.6    -      -       +      -
     93K  MSE      4.0    15.7    -      -       +      -
     96K  THR*     3.7    39.3    -      -       +      +
    113K  ILE*     2.9    19.5    +      -       +      +
    114K  ARG      3.9     2.5    -      -       -      +
    116K  LEU*     1.3    72.4    -      -       -      +
    118K  LYS*     1.3    68.0    +      -       -      +
    120K  MSE      3.1     6.6    +      -       +      +
    121K  TRP*     2.9    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 118 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93K  MSE      5.4     2.9    -      -       -      -
    114K  ARG*     2.8    38.9    +      -       +      +
    115K  THR*     3.5     8.1    -      -       -      +
    117K  VAL*     1.3    76.7    -      -       -      +
    119K  ASP*     1.3    62.0    +      -       -      +
    121K  TRP*     3.4     8.0    +      -       +      +
    122K  ASP*     2.8    53.2    +      -       -      +
    186L  PHE*     5.7     0.4    -      -       -      -
    190L  GLU*     3.5    32.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 119 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75K  ARG*     2.7    39.7    +      -       -      +
    115K  THR*     2.7    42.2    +      -       -      +
    116K  LEU      3.9     0.7    -      -       -      +
    118K  LYS*     1.3    77.7    -      -       -      +
    120K  MSE      1.3    65.7    +      -       -      +
    121K  TRP      3.2     0.2    -      -       -      -
    122K  ASP*     3.9    14.9    -      -       -      +
    123K  THR*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 120 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71K  LEU*     5.0    11.9    -      -       +      +
     74K  MSE      3.8    35.7    -      -       +      +
     75K  ARG*     4.0    26.4    -      -       +      +
     78K  GLU*     4.1    21.1    -      -       +      +
     85K  THR*     4.7     3.1    -      -       -      +
     86K  PRO      6.1     0.2    -      -       -      +
     87K  MSE      3.3    37.9    -      -       +      -
     88K  PRO*     5.4     0.7    -      -       +      -
     92K  TYR*     4.6    10.1    -      -       +      -
    116K  LEU      2.9    16.7    +      -       -      +
    117K  VAL*     3.3    14.4    -      -       +      +
    119K  ASP*     1.3    75.8    -      -       -      +
    121K  TRP*     1.3    62.4    +      -       -      +
    123K  THR*     3.1    18.0    +      -       -      -
    124K  ARG*     3.2    17.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 121 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92K  TYR*     3.7    17.9    +      -       -      -
     93K  MSE      3.0    48.0    -      -       +      -
    117K  VAL      2.9     6.0    +      -       -      +
    118K  LYS*     3.5    11.0    -      -       +      +
    120K  MSE      1.3    74.9    -      -       -      +
    122K  ASP*     1.3    83.3    +      -       -      +
    124K  ARG*     2.9    13.4    +      -       -      +
    125K  ILE*     3.0    45.1    +      -       +      +
    151K  MSE      3.7    31.6    -      -       +      -
    152K  GLU*     3.4    23.8    -      -       +      -
    155K  THR*     4.1    12.1    -      -       +      -
    186L  PHE*     3.2    53.4    -      +       -      -
----------------------------------------------------------
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Residues in contact with ASP 122 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118K  LYS*     2.8    50.6    +      -       -      +
    119K  ASP*     3.8    17.8    -      -       -      +
    121K  TRP*     1.3    90.6    -      -       -      +
    123K  THR*     1.3    62.6    +      -       +      +
    125K  ILE*     3.6     4.7    +      -       -      +
    126K  ALA*     3.3    20.1    +      -       -      +
    129K  ARG*     5.5     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 123 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75K  ARG*     3.5    25.3    +      -       -      +
     78K  GLU*     4.3    13.1    -      -       -      +
     79K  ARG*     5.0    20.4    +      -       +      -
    119K  ASP      2.9    16.7    +      -       -      +
    120K  MSE      3.1    15.8    +      -       -      -
    122K  ASP*     1.3    78.2    -      -       +      +
    124K  ARG*     1.3    58.0    +      -       -      +
    126K  ALA*     3.4     8.0    -      -       -      +
    127K  LYS*     3.2    31.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 124 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78K  GLU*     3.3    31.0    +      -       +      +
     84K  PHE*     3.3    29.9    -      -       +      +
     85K  THR      2.5    31.5    +      -       -      -
     87K  MSE      3.0    37.8    -      -       +      +
     92K  TYR*     4.0     0.7    -      -       -      -
    120K  MSE      3.2    11.4    +      -       -      +
    121K  TRP      2.9     7.7    +      -       -      +
    123K  THR*     1.3    75.3    +      -       -      +
    125K  ILE*     1.3    66.7    +      -       +      +
    126K  ALA      3.1     1.3    -      -       -      -
    127K  LYS*     3.2     6.7    +      -       -      +
    128K  LEU*     2.9    19.1    +      -       -      +
    147K  ASN      2.7    22.6    +      -       -      -
    148K  LEU*     3.9     6.8    -      -       -      +
    149K  THR*     4.4     0.2    -      -       -      +
    152K  GLU*     2.8    47.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 125 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121K  TRP*     3.0    67.4    +      -       +      +
    122K  ASP*     4.1     4.0    -      -       -      +
    124K  ARG*     1.3    76.7    -      -       +      +
    126K  ALA*     1.3    59.2    +      -       -      +
    128K  LEU*     3.1    11.6    +      -       +      +
    129K  ARG*     2.9    34.4    +      -       +      +
    152K  GLU*     4.2    17.0    -      -       +      +
    155K  THR*     6.5     0.4    -      -       +      -
    156K  SER*     4.3     8.5    -      -       -      +
    154L  GLN*     4.0    31.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 126 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122K  ASP      3.3    12.0    +      -       -      +
    123K  THR*     3.4    13.5    -      -       -      +
    125K  ILE*     1.3    79.9    -      -       -      +
    127K  LYS*     1.3    63.1    +      -       +      +
    129K  ARG*     3.1    30.3    +      -       -      +
    130K  VAL*     3.0    29.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 127 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78K  GLU*     2.7    52.3    +      -       +      +
     79K  ARG*     5.5     2.2    -      -       -      -
     81K  GLU*     3.3    11.9    +      -       -      +
     82K  GLU      3.3    18.2    -      -       -      +
     83K  THR      2.4    33.0    +      -       -      -
     84K  PHE*     3.7    11.4    -      -       +      +
    123K  THR*     3.2    16.1    +      -       -      +
    124K  ARG*     3.2     9.0    +      -       -      +
    126K  ALA*     1.3    77.2    -      -       +      +
    128K  LEU*     1.3    58.3    +      -       -      +
    130K  VAL*     3.7     7.2    -      -       -      +
    131K  SER*     2.8    31.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 128 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84K  PHE*     3.6    22.4    -      -       +      -
    124K  ARG      2.9    13.0    +      -       -      +
    125K  ILE*     3.3    18.2    -      -       +      +
    126K  ALA      3.1     0.2    -      -       -      -
    127K  LYS*     1.3    74.7    -      -       -      +
    129K  ARG*     1.3    56.8    +      -       +      +
    131K  SER*     3.2     4.7    +      -       -      -
    132K  ALA*     2.7    38.4    +      -       +      +
    145K  LEU*     5.4     7.0    -      -       +      -
    148K  LEU*     4.3    17.7    -      -       +      -
    152K  GLU*     4.3    14.6    -      -       +      +
    153K  ILE*     5.9     1.1    -      -       -      -
    156K  SER*     4.1    28.5    -      -       -      +
    160K  LEU*     4.3    21.8    -      -       +      -
    150L  MSE      6.5     0.4    -      -       -      -
    154L  GLN*     5.7     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 129 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122K  ASP      5.5     0.6    +      -       -      -
    125K  ILE*     2.9    18.6    +      -       +      +
    126K  ALA*     3.5    31.4    +      -       -      +
    128K  LEU*     1.3    77.0    -      -       +      +
    130K  VAL*     1.3    58.7    +      -       -      +
    132K  ALA      3.0     1.7    +      -       -      -
    133K  ASP*     2.8    27.3    +      -       -      +
    147L  ARG*     3.9    12.9    -      -       -      +
    150L  MSE      3.1    38.8    -      -       +      +
    151L  ASP*     3.3    37.6    +      -       -      +
    154L  GLN*     3.1    33.9    +      -       -      +
    155L  ASN*     6.0     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 130 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126K  ALA*     3.0    19.0    +      -       +      +
    127K  LYS*     3.7     9.2    -      -       -      +
    129K  ARG*     1.3    75.8    -      -       -      +
    131K  SER*     1.3    64.0    +      -       -      +
    133K  ASP*     3.3     5.8    +      -       -      +
    134K  SER*     2.9    23.5    +      -       -      -
    147L  ARG*     3.4    24.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 131 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84K  PHE*     4.8    12.7    -      -       -      -
    127K  LYS      2.8    21.5    +      -       -      -
    128K  LEU*     3.6    10.2    -      -       -      +
    130K  VAL*     1.3    74.0    -      -       -      +
    132K  ALA*     1.3    53.2    +      -       -      +
    134K  SER*     3.1     8.3    +      -       -      -
    135K  PHE*     2.8    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 132 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128K  LEU*     2.7    24.1    +      -       +      +
    129K  ARG      3.2     4.9    -      -       -      +
    131K  SER*     1.3    69.2    -      -       -      +
    133K  ASP*     1.3    64.8    +      -       -      +
    135K  PHE*     3.3     8.5    +      -       -      +
    136K  VAL*     3.0    27.5    +      -       -      +
    160K  LEU*     3.6    34.5    -      -       +      -
    146L  PHE*     4.0     3.8    -      -       +      -
    150L  MSE      4.0    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 133 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129K  ARG      2.8    18.1    +      -       -      +
    130K  VAL*     3.7     7.6    -      -       -      +
    132K  ALA*     1.3    71.1    -      -       -      +
    134K  SER*     1.3    65.0    +      -       -      +
    136K  VAL*     3.2     2.5    +      -       -      +
    137K  ARG*     2.8    52.2    +      -       -      +
    143L  ILE      5.4     1.1    -      -       -      +
    146L  PHE*     3.9    17.5    -      -       +      -
    147L  ARG*     2.5    47.7    +      -       +      +
    150L  MSE      4.7     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 134 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130K  VAL*     2.9    15.7    +      -       -      -
    131K  SER*     3.1    13.0    +      -       -      -
    133K  ASP*     1.3    78.9    -      -       -      +
    135K  PHE*     1.3    56.1    +      -       -      +
    137K  ARG*     3.6     5.0    -      -       -      +
    138K  GLN*     2.7    64.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 135 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170I  TYR*     5.2     3.1    -      +       -      -
    205I  LEU*     5.0     8.3    -      -       +      -
    131K  SER*     2.8    20.0    +      -       -      +
    132K  ALA*     3.5     8.7    -      -       -      +
    134K  SER*     1.3    74.1    +      -       -      +
    136K  VAL*     1.3    70.1    +      -       +      +
    138K  GLN*     3.5     4.5    +      -       -      -
    139K  GLN*     3.1    17.7    +      -       -      -
    140K  GLU*     3.3    60.2    +      -       +      -
    141K  ALA      4.2    10.3    -      -       -      -
    142K  HIS      3.8     7.9    -      -       -      -
    143K  ALA*     3.5    33.0    -      -       +      -
    164K  LEU*     3.6    36.1    -      -       +      -
    167K  MSE      5.6     1.8    -      -       +      -
    171K  ARG*     6.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 136 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132K  ALA*     3.0    19.7    +      -       +      +
    133K  ASP*     3.6     4.3    -      -       -      +
    135K  PHE*     1.3    82.6    -      -       +      +
    137K  ARG*     1.3    70.0    +      -       +      +
    139K  GLN*     3.2    13.3    +      -       -      +
    160K  LEU*     6.1     1.1    -      -       +      -
    164K  LEU*     4.4     8.1    -      -       +      -
    167K  MSE      3.7    24.9    -      -       -      +
    143L  ILE*     3.4    49.3    -      -       +      +
    146L  PHE*     4.2    32.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 137 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133K  ASP*     2.8    44.4    +      -       -      +
    134K  SER*     3.7     5.2    -      -       -      +
    136K  VAL*     1.3    73.5    -      -       +      +
    138K  GLN*     1.3    60.7    +      -       +      +
    139K  GLN*     2.8    19.7    +      -       -      +
    143L  ILE*     3.9    30.0    +      -       +      +
    144L  GLY*     4.0    24.9    +      -       -      -
    147L  ARG*     5.0     5.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 138 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188I  THR*     5.4     1.9    -      -       -      +
    134K  SER*     2.7    45.6    +      -       -      +
    135K  PHE*     3.7     4.5    -      -       -      +
    137K  ARG*     1.3    71.5    -      -       +      +
    139K  GLN*     1.3    68.9    +      -       -      +
    140K  GLU*     3.4    15.2    +      -       +      +
----------------------------------------------------------
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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