Contacts of the helix formed by residues 408 - 434 (chain A) in PDB entry 1JIH


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 408 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  CYS*     4.3     0.2    -      -       -      -
    407A  ASN*     1.3    79.6    -      -       -      +
    409A  ILE*     1.3    61.4    +      -       -      +
    410A  VAL*     2.8    32.1    -      -       -      +
    411A  ASP*     3.1    11.0    +      -       -      +
    412A  CYS*     3.0    29.5    +      -       -      -
    494A  TYR*     3.3    24.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 409 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408A  SER*     1.3    73.3    -      -       -      +
    410A  VAL*     1.3    72.5    +      -       +      +
    412A  CYS*     3.1     4.9    +      -       +      +
    413A  ILE*     3.0    32.9    +      -       +      +
    481A  VAL*     3.4    46.4    -      -       +      +
    482A  THR*     3.9    17.7    -      -       +      +
    485A  ASP*     4.2    12.1    -      -       +      +
    494A  TYR*     3.4    18.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 410 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408A  SER*     2.8    28.5    -      -       -      +
    409A  ILE*     1.3    84.6    -      -       +      +
    411A  ASP*     1.3    65.4    +      -       -      +
    413A  ILE*     3.3    10.1    +      -       -      +
    414A  SER*     2.9    38.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 411 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LYS*     2.6    30.2    +      -       -      +
    404A  LYS      4.4     0.9    -      -       -      +
    405A  SER      3.9     2.5    -      -       -      +
    406A  CYS*     3.6    18.8    -      -       -      -
    407A  ASN*     2.8    26.6    +      -       -      +
    408A  SER*     3.1    21.2    +      -       -      +
    410A  VAL*     1.3    86.9    -      -       -      +
    412A  CYS*     1.3    65.4    +      -       -      +
    414A  SER*     3.2     7.5    +      -       -      -
    415A  TRP*     3.0    27.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 412 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  CYS*     3.6    18.8    -      -       -      -
    408A  SER      3.0    18.7    +      -       -      -
    409A  ILE*     3.1     7.6    +      -       -      +
    411A  ASP*     1.3    74.7    -      -       -      +
    413A  ILE*     1.3    63.0    +      -       -      +
    415A  TRP*     3.2     4.3    +      -       -      +
    416A  LEU*     3.0    27.8    +      -       -      +
    447A  LEU*     5.5     1.3    -      -       -      -
    481A  VAL*     3.4    32.3    -      -       +      -
    493A  TYR*     5.6     1.1    -      -       -      -
    494A  TYR*     3.5    27.1    -      -       -      -
    496A  LEU*     3.8    11.9    -      -       -      -
    499A  LEU*     3.9     6.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 413 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  ILE*     3.0    27.8    +      -       +      +
    410A  VAL*     3.6     9.6    -      -       -      +
    412A  CYS*     1.3    76.6    -      -       -      +
    414A  SER*     1.3    64.2    +      -       -      +
    416A  LEU*     3.0     8.7    +      -       -      +
    417A  GLU*     3.0    39.3    +      -       +      +
    478A  ILE*     3.7    50.5    -      -       +      -
    481A  VAL*     4.1    10.5    -      -       +      -
    482A  THR*     5.0     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 414 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LYS*     4.1    13.4    -      -       -      -
     98A  GLY*     3.1    42.2    +      -       -      -
    410A  VAL*     2.9    25.7    +      -       -      +
    411A  ASP*     3.2    12.8    +      -       -      -
    413A  ILE*     1.3    77.0    -      -       -      +
    415A  TRP*     1.3    61.4    +      -       -      +
    417A  GLU*     3.5    16.5    +      -       -      +
    418A  VAL*     3.6     3.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 415 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  PHE      5.7     0.2    -      -       -      -
     97A  LYS*     3.8    22.4    -      -       +      +
    122A  GLU      3.3    22.7    -      -       -      -
    123A  ASP*     3.8    21.1    -      -       -      -
    124A  HIS      3.9     2.2    -      -       -      -
    125A  LYS*     4.4    16.4    -      -       +      -
    399A  LYS*     3.7    33.0    -      -       +      -
    401A  LEU*     3.6    21.1    -      -       +      +
    405A  SER*     3.3    19.7    +      -       -      -
    406A  CYS*     4.0    17.9    -      -       +      -
    411A  ASP      3.0    23.5    +      -       -      -
    412A  CYS      3.6     6.3    -      -       -      +
    414A  SER*     1.3    73.5    -      -       -      +
    416A  LEU*     1.3    61.3    +      -       -      +
    417A  GLU      3.2     0.4    -      -       -      -
    418A  VAL*     3.0    18.5    +      -       +      +
    419A  PHE*     2.9    48.8    +      +       +      -
    499A  LEU*     3.9    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 416 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412A  CYS      3.0    18.1    +      -       -      +
    413A  ILE*     3.0    10.5    +      -       -      +
    415A  TRP*     1.3    73.1    -      -       -      +
    417A  GLU*     1.3    60.6    +      -       +      +
    419A  PHE*     3.7    23.0    -      -       +      +
    420A  CYS*     2.8    34.2    +      -       -      +
    445A  ILE*     3.8    19.7    -      -       +      -
    474A  LEU*     5.8     4.3    -      -       +      +
    477A  GLY*     3.6    34.8    -      -       -      +
    478A  ILE*     4.0     9.2    -      -       +      +
    481A  VAL*     3.8    18.8    -      -       +      -
    499A  LEU*     4.1    15.9    -      -       +      -
    500A  SER      5.4     0.4    -      -       -      +
    501A  MET*     4.2    14.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 417 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  GLY*     3.0    29.7    -      -       -      +
     99A  GLU*     4.4     9.8    -      -       -      +
    100A  ASP*     4.2     9.9    -      -       +      +
    413A  ILE*     3.0    34.9    +      -       +      +
    414A  SER*     3.6    11.0    +      -       -      +
    415A  TRP      3.2     0.2    -      -       -      -
    416A  LEU*     1.3    76.6    -      -       +      +
    418A  VAL*     1.3    61.8    +      -       -      +
    420A  CYS*     3.9     5.1    -      -       -      +
    421A  ALA*     3.1    24.1    +      -       -      +
    474A  LEU*     5.9     7.2    -      -       +      -
    478A  ILE*     6.0     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 418 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  PHE*     3.5    27.3    -      -       +      -
     96A  LYS      3.4    22.4    -      -       -      +
     97A  LYS*     4.1     3.4    -      -       -      -
     98A  GLY      3.9     2.7    -      -       -      +
     99A  GLU      3.3    21.1    -      -       -      +
    125A  LYS*     4.0    27.4    -      -       +      -
    414A  SER      3.6    13.0    +      -       -      +
    415A  TRP*     3.0    17.2    +      -       +      +
    417A  GLU*     1.3    75.7    -      -       -      +
    419A  PHE*     1.3    66.1    +      -       +      +
    421A  ALA*     3.2     5.6    +      -       -      +
    422A  GLU*     3.0    21.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 419 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  LYS*     3.8    19.3    -      -       +      -
    397A  SER*     3.4    34.0    +      -       -      +
    398A  ASN      4.0     2.5    -      -       -      -
    399A  LYS*     3.6    27.8    -      -       +      -
    415A  TRP*     2.9    33.3    +      +       +      -
    416A  LEU*     3.7    21.3    -      -       +      +
    418A  VAL*     1.3    76.7    -      -       +      +
    420A  CYS*     1.3    63.9    +      -       -      +
    422A  GLU*     3.1     3.7    +      -       -      +
    423A  LEU*     3.0    28.9    +      -       -      +
    499A  LEU*     3.4    50.9    -      -       +      -
    501A  MET*     4.2    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 420 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  LEU      2.8    21.3    +      -       -      +
    417A  GLU*     3.9     5.6    -      -       -      +
    419A  PHE*     1.3    75.2    -      -       -      +
    421A  ALA*     1.3    52.5    +      -       -      +
    423A  LEU*     3.6     3.5    +      -       -      +
    424A  THR*     2.6    38.7    +      -       -      -
    470A  SER*     3.1    40.4    -      -       -      -
    473A  LEU*     3.5    25.1    -      -       -      -
    474A  LEU*     3.8    11.2    -      -       +      +
    501A  MET*     4.3    14.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 421 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  PHE*     3.7    16.1    -      -       +      -
    100A  ASP*     3.5    31.6    -      -       +      +
    417A  GLU      3.1    19.1    +      -       -      +
    418A  VAL      3.2     4.9    +      -       -      +
    420A  CYS*     1.3    76.7    -      -       -      +
    422A  GLU*     1.3    64.1    +      -       -      +
    424A  THR*     3.4     6.7    +      -       -      +
    425A  SER*     3.0    22.9    +      -       -      -
    470A  SER*     5.5     3.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 422 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  PHE*     4.1    20.6    -      -       +      -
    125A  LYS*     2.7    36.1    +      -       -      +
    126A  VAL      4.8     5.3    -      -       -      +
    127A  SER*     6.2     1.1    -      -       -      -
    132A  ARG*     5.6     2.2    +      -       -      +
    396A  MET      4.0     0.2    -      -       -      +
    397A  SER*     2.8    22.0    +      -       -      +
    418A  VAL*     3.0    13.2    +      -       +      +
    419A  PHE      3.1     7.8    +      -       -      +
    421A  ALA*     1.3    76.5    -      -       -      +
    423A  LEU*     1.3    63.7    +      -       -      +
    425A  SER*     2.7    24.6    +      -       -      +
    426A  ARG*     3.0    45.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 423 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  MET*     3.8    38.3    -      -       +      +
    396A  MET      4.0     6.1    -      -       -      -
    397A  SER*     3.9     5.8    -      -       -      -
    419A  PHE      3.0    15.7    +      -       -      +
    420A  CYS      4.1     2.7    -      -       -      +
    422A  GLU*     1.3    76.8    -      -       -      +
    424A  THR*     1.3    55.7    -      -       -      +
    426A  ARG*     3.3    23.3    +      -       -      +
    427A  ILE*     2.9    35.7    +      -       -      +
    473A  LEU*     4.7     7.0    -      -       +      -
    501A  MET*     3.6    47.6    -      -       +      +
    503A  ILE*     4.1    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 424 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420A  CYS*     2.6    24.9    +      -       -      -
    421A  ALA*     3.5     8.3    -      -       -      +
    423A  LEU*     1.3    74.6    -      -       -      +
    425A  SER*     1.3    64.9    +      -       -      +
    427A  ILE*     3.2     9.7    +      -       -      +
    428A  GLN*     3.0    47.6    +      -       +      +
    467A  ASN*     4.8     8.3    -      -       -      +
    469A  GLN*     4.7     5.7    -      -       +      +
    470A  SER*     3.8    35.1    +      -       -      +
    473A  LEU*     4.9     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 425 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  PHE*     5.3     3.9    -      -       -      -
    102A  TRP*     6.0     1.1    -      -       -      -
    129A  GLU*     3.0    36.6    +      -       -      +
    132A  ARG*     5.2     0.9    +      -       -      -
    421A  ALA      3.0    12.1    +      -       -      -
    422A  GLU*     2.7    22.2    +      -       -      +
    424A  THR*     1.3    77.3    -      -       -      +
    426A  ARG*     1.3    60.7    +      -       -      +
    428A  GLN*     3.2    14.6    +      -       -      +
    429A  ASP*     3.0    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  ARG*     3.6    38.9    -      -       -      +
    394A  SER      5.3     0.4    +      -       -      -
    395A  MET*     3.7    40.0    -      -       -      +
    396A  MET      2.8    30.3    +      -       -      +
    422A  GLU*     3.0    41.0    +      -       +      +
    423A  LEU*     3.7    14.0    -      -       -      +
    425A  SER*     1.3    84.8    +      -       -      +
    427A  ILE*     1.3    60.4    +      -       -      +
    429A  ASP*     3.6     8.8    +      -       -      +
    430A  LEU*     3.3    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  MET*     3.4    24.0    -      -       +      -
    423A  LEU*     2.9    22.0    +      -       +      +
    424A  THR*     3.6     7.6    -      -       -      +
    425A  SER      3.2     0.2    -      -       -      -
    426A  ARG*     1.3    73.4    -      -       -      +
    428A  GLN*     1.3    62.6    +      -       +      +
    429A  ASP      3.1     0.2    -      -       -      -
    430A  LEU*     3.2     5.8    +      -       -      +
    431A  GLU*     2.9    46.1    +      -       +      +
    438A  VAL*     3.6    24.9    -      -       +      +
    440A  PRO*     4.2    22.4    -      -       +      -
    467A  ASN*     5.1     5.8    -      -       -      +
    469A  GLN*     5.0    12.1    -      -       +      -
    473A  LEU*     5.2     2.7    -      -       +      -
    503A  ILE*     3.7    24.2    -      -       +      -
    506A  PHE*     4.6     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133A  ARG*     6.0     2.2    -      -       -      +
    136A  ARG*     5.1     1.2    +      -       -      +
    424A  THR*     3.0    35.3    +      -       +      +
    425A  SER*     3.2    11.2    +      -       -      +
    427A  ILE*     1.3    77.1    -      -       +      +
    429A  ASP*     1.3    59.9    +      -       -      +
    431A  GLU*     3.4    19.7    +      -       -      +
    432A  GLN*     3.0    29.1    +      -       -      +
    467A  ASN*     4.1    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  GLU*     2.9    21.4    -      -       -      +
    132A  ARG*     2.8    40.4    -      -       -      +
    136A  ARG*     3.0    34.2    +      -       -      +
    425A  SER      3.0    15.2    +      -       -      +
    426A  ARG      3.7     6.7    -      -       -      +
    427A  ILE      3.1     0.2    -      -       -      -
    428A  GLN*     1.3    77.0    -      -       -      +
    430A  LEU*     1.3    60.1    +      -       +      +
    432A  GLN*     3.9     0.2    -      -       -      +
    433A  GLU*     2.8    52.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  ARG*     6.2     1.3    -      -       -      +
    392A  VAL*     3.8    30.1    -      -       +      +
    395A  MET*     3.8    25.8    -      -       +      -
    426A  ARG      3.3    10.2    +      -       -      +
    427A  ILE*     3.2     9.0    +      -       -      +
    429A  ASP*     1.3    79.3    -      -       +      +
    431A  GLU*     1.3    62.4    +      -       -      +
    433A  GLU*     4.2    14.4    -      -       -      +
    434A  TYR*     3.3    38.6    +      -       +      +
    436A  LYS*     4.5     1.7    -      -       -      +
    438A  VAL*     4.6    16.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427A  ILE*     2.9    28.9    +      -       +      +
    428A  GLN*     3.5    23.2    +      -       -      +
    430A  LEU*     1.3    76.7    -      -       -      +
    432A  GLN*     1.3    53.4    +      -       -      +
    435A  ASN*     2.6    37.6    +      -       -      -
    436A  LYS      2.9    23.3    +      -       -      +
    437A  ILE*     3.5    16.8    -      -       +      +
    438A  VAL*     3.0    30.9    +      -       +      +
    467A  ASN*     3.3    30.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  ARG*     3.9    31.0    -      -       -      +
    140A  LYS*     4.3    11.1    -      -       -      -
    428A  GLN      3.0    16.7    +      -       -      +
    429A  ASP      3.9     2.0    -      -       -      +
    431A  GLU*     1.3    72.3    -      -       -      +
    433A  GLU*     1.3    68.0    +      -       -      +
    434A  TYR      2.8     4.0    +      -       -      -
    435A  ASN*     2.9    15.4    +      -       -      +
     10B  ILE*     4.5     7.4    -      -       -      +
    199B  TYR*     3.0    30.8    +      -       -      -
    201B  ILE*     4.8    18.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  ARG*     4.6     8.5    -      -       -      +
    136A  ARG*     3.5    27.8    -      -       +      +
    139A  LEU*     3.9    27.7    -      -       +      +
    143A  LYS*     4.4    11.1    +      -       -      -
    151A  ARG*     3.6    29.5    +      -       -      +
    429A  ASP*     2.8    50.5    +      -       -      +
    430A  LEU*     4.2     8.1    -      -       -      +
    432A  GLN*     1.3    72.0    -      -       -      +
    434A  TYR*     1.3    86.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  ARG*     3.8    39.7    +      -       +      +
    388A  SER*     4.6    23.1    -      -       -      -
    389A  ARG*     4.2    25.4    +      -       +      +
    430A  LEU*     3.3    29.7    +      -       +      +
    432A  GLN      3.0     0.4    -      -       -      -
    433A  GLU*     1.3   108.8    -      -       +      +
    435A  ASN*     1.3    72.7    +      -       -      +
    436A  LYS*     3.4    10.3    +      -       +      +
----------------------------------------------------------
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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