Contacts of the helix formed by residues 463 - 486 (chain A) in PDB entry 1MWR


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 ASP 463 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  LYS*     4.0     1.6    -      -       -      -
    427A  ILE*     3.5     8.8    -      -       -      +
    445A  ARG*     2.8    39.3    +      -       -      -
    447A  GLU      4.3     3.8    -      -       -      +
    449A  VAL*     4.1    10.7    -      -       -      +
    453A  ILE*     4.5     3.3    -      -       +      +
    458A  ALA*     3.0    19.6    +      -       +      -
    461A  SER*     3.3     6.2    +      -       -      +
    462A  SER*     1.3    70.7    -      -       -      +
    464A  ASN*     1.3    65.8    +      -       -      +
    465A  ILE*     3.0    19.8    +      -       -      +
    466A  PHE*     2.9    39.1    +      -       +      -
    467A  PHE*     3.2    22.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 464 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  LYS*     2.8    28.2    +      -       -      -
    443A  VAL*     4.3     1.1    -      -       +      -
    444A  THR      3.1    29.2    +      -       -      +
    445A  ARG*     3.9     9.2    -      -       -      +
    446A  TYR*     3.1    38.5    +      -       -      -
    462A  SER      3.3     3.0    +      -       -      -
    463A  ASP*     1.3    72.8    +      -       -      +
    465A  ILE*     1.3    56.1    +      -       -      +
    467A  PHE      3.7     0.2    +      -       -      -
    468A  ALA*     3.0    28.6    +      -       -      +
    519A  TYR*     3.2    44.2    -      -       +      +
    521A  GLN*     4.2     3.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 465 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427A  ILE*     3.8    32.3    -      -       +      -
    429A  GLY      4.7     0.4    -      -       -      +
    430A  LYS      3.9    12.6    -      -       -      +
    431A  GLY      3.8     9.4    -      -       -      +
    432A  TRP*     3.7    41.3    -      -       +      -
    443A  VAL*     3.6    32.3    -      -       +      +
    445A  ARG*     4.1    13.0    -      -       +      +
    463A  ASP*     3.0     7.6    +      -       -      +
    464A  ASN*     1.3    73.4    -      -       -      +
    466A  PHE*     1.3    67.9    +      -       -      +
    468A  ALA*     3.0     7.2    +      -       -      +
    469A  ARG*     2.8    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 466 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    419A  LEU*     4.0    13.9    -      -       +      -
    423A  THR*     4.1     9.4    -      -       +      -
    425A  TYR*     3.6    24.3    -      +       -      -
    427A  ILE*     3.6     8.6    -      -       +      +
    453A  ILE*     3.1    36.6    -      -       +      -
    454A  ASP      3.8     4.0    -      -       -      -
    455A  LEU*     3.5    36.1    -      -       +      -
    458A  ALA*     3.2    32.3    -      -       +      -
    463A  ASP*     2.9    21.1    +      -       +      +
    465A  ILE*     1.3    76.1    -      -       -      +
    467A  PHE*     1.3    68.6    +      +       -      +
    469A  ARG*     3.4     4.6    +      -       -      +
    470A  VAL*     3.1    37.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 467 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  LYS*     3.7    53.8    -      -       +      -
    407A  ILE*     6.0     0.9    -      -       +      -
    409A  THR*     4.0    11.2    -      -       +      +
    410A  ALA*     4.2    10.8    -      -       +      -
    419A  LEU*     6.4     0.4    -      -       +      -
    455A  LEU*     3.8    31.4    -      -       +      -
    458A  ALA*     3.7    31.2    -      -       +      -
    459A  ILE*     4.2    12.3    -      -       +      -
    463A  ASP      3.2    21.2    +      -       -      +
    464A  ASN      4.4     1.6    -      -       -      +
    465A  ILE      3.2     0.2    -      -       -      -
    466A  PHE*     1.3    83.6    -      +       -      +
    468A  ALA*     1.3    67.0    +      -       -      +
    469A  ARG      3.0     2.0    -      -       -      -
    470A  VAL*     3.0     8.5    +      -       +      +
    471A  ALA*     2.9    25.1    +      -       -      +
    518A  GLY*     3.7    20.6    -      -       -      +
    519A  TYR*     4.6     0.9    -      -       +      -
    597A  LYS*     5.3     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 468 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432A  TRP*     5.3     3.4    -      -       +      -
    443A  VAL*     3.9    26.9    -      -       +      -
    464A  ASN      3.0    20.8    +      -       -      +
    465A  ILE*     3.0     6.7    +      -       +      +
    467A  PHE*     1.3    76.8    -      -       -      +
    469A  ARG*     1.3    60.4    +      -       +      +
    471A  ALA*     3.5     3.5    +      -       -      +
    472A  LEU*     3.1    31.0    +      -       -      +
    515A  ALA*     3.6    28.4    -      -       +      +
    518A  GLY*     4.6     0.9    -      -       -      -
    519A  TYR*     3.9     2.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 469 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  TYR*     3.4    55.8    -      -       +      +
    426A  LYS*     3.9    18.4    +      -       -      +
    427A  ILE*     5.4     0.4    -      -       -      +
    432A  TRP*     3.6    57.4    -      -       +      +
    465A  ILE*     2.8    25.8    +      -       -      +
    466A  PHE      3.7     4.7    -      -       -      +
    468A  ALA*     1.3    75.1    -      -       -      +
    470A  VAL*     1.3    54.5    +      -       -      +
    471A  ALA      3.1     1.8    -      -       -      -
    472A  LEU*     2.9     7.2    +      -       +      +
    473A  GLU*     2.7    36.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 470 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  THR*     3.7    25.1    -      -       +      +
    410A  ALA*     5.2     1.3    -      -       -      -
    413A  GLY*     4.6     7.9    -      -       -      -
    418A  THR*     5.1     1.3    -      -       -      +
    419A  LEU*     4.0    24.5    -      -       +      -
    425A  TYR*     4.0    13.9    -      -       +      +
    466A  PHE*     3.1    40.7    +      -       +      +
    467A  PHE*     3.0    14.5    +      -       +      +
    469A  ARG*     1.3    76.5    -      -       -      +
    471A  ALA*     1.3    58.4    +      -       -      +
    473A  GLU*     3.3     3.3    +      -       -      +
    474A  LEU*     3.0    39.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 471 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  THR*     4.3     1.3    -      -       +      -
    467A  PHE      2.9     7.3    +      -       -      +
    468A  ALA      3.7     4.3    -      -       -      +
    470A  VAL*     1.3    76.3    -      -       -      +
    472A  LEU*     1.3    63.0    -      -       -      +
    474A  LEU*     3.4    11.1    +      -       -      +
    475A  GLY      3.2    11.6    +      -       -      -
    479A  PHE*     4.2    10.2    -      -       +      +
    514A  LEU*     3.1    43.4    -      -       +      +
    518A  GLY*     3.6    28.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 472 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432A  TRP*     3.7    35.9    -      -       +      -
    434A  LYS*     4.9     7.9    -      -       +      +
    438A  TRP*     4.0    16.4    -      -       +      -
    468A  ALA      3.1    19.6    +      -       -      +
    469A  ARG*     2.9     9.2    +      -       +      +
    471A  ALA*     1.3    75.9    -      -       -      +
    473A  GLU*     1.3    63.1    +      -       -      +
    475A  GLY*     3.6     9.9    +      -       -      -
    511A  GLU*     3.7    47.3    -      -       +      +
    514A  LEU*     4.0    11.3    -      -       +      +
    515A  ALA*     4.2     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 473 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    418A  THR*     4.2    30.3    -      -       +      +
    423A  THR*     5.7     0.3    -      -       -      +
    425A  TYR*     2.9    34.2    +      -       -      +
    469A  ARG      2.7    15.9    +      -       -      +
    470A  VAL*     3.5     5.8    -      -       -      +
    472A  LEU*     1.3    79.6    -      -       -      +
    474A  LEU*     1.3    63.1    +      -       -      +
    475A  GLY*     3.4     0.5    +      -       -      -
    478A  LYS*     5.3     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 474 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  THR*     4.2     3.6    -      -       +      +
    412A  ILE*     3.9    18.8    -      -       +      +
    413A  GLY*     3.9    19.5    -      -       -      +
    416A  ASN*     3.8    30.1    -      -       +      +
    418A  THR*     3.2    26.9    -      -       +      +
    470A  VAL*     3.0    31.8    +      -       +      +
    471A  ALA*     3.8     4.5    -      -       -      +
    472A  LEU      3.4     0.2    -      -       -      -
    473A  GLU*     1.3    78.1    -      -       -      +
    475A  GLY*     1.3    62.2    +      -       -      +
    478A  LYS*     3.0    39.5    +      -       +      +
    479A  PHE*     4.4    16.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 475 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    471A  ALA      3.2     9.2    +      -       -      -
    472A  LEU      3.6     6.2    +      -       -      -
    473A  GLU      3.3     3.4    -      -       -      -
    474A  LEU*     1.3    77.3    -      -       -      +
    476A  SER*     1.3    67.2    +      -       -      -
    477A  LYS*     2.9     5.5    +      -       -      -
    478A  LYS      3.0    13.2    +      -       -      -
    479A  PHE*     3.0    10.7    +      -       -      +
    514A  LEU*     4.0     8.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 476 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  GLY*     1.3    69.4    -      -       -      -
    477A  LYS*     1.3    65.8    +      -       -      +
    479A  PHE*     3.8     4.6    -      -       -      +
    480A  GLU*     2.9    32.4    +      -       -      +
    508A  LEU*     3.3    33.6    -      -       -      +
    509A  ASP*     3.2    24.4    +      -       -      -
    514A  LEU*     3.6    13.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 477 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  GLY      2.9     5.4    +      -       -      -
    476A  SER*     1.3    84.6    +      -       -      +
    478A  LYS*     1.3    61.2    +      -       +      +
    480A  GLU*     3.6     5.6    -      -       -      +
    481A  LYS*     2.8    67.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 478 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412A  ILE*     3.7     5.9    -      -       -      +
    416A  ASN*     3.8    28.3    +      -       +      +
    418A  THR*     4.9     7.9    -      -       +      -
    473A  GLU      5.3     0.9    -      -       -      +
    474A  LEU*     3.0    45.5    +      -       +      +
    475A  GLY      3.0     1.8    +      -       -      -
    477A  LYS*     1.3    85.3    -      -       +      +
    479A  PHE*     1.3    53.5    +      -       -      +
    481A  LYS*     3.6     6.0    -      -       -      +
    482A  GLY*     2.6    34.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 479 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  GLN*     3.7    23.3    -      -       -      -
    409A  THR*     3.7    28.5    -      -       +      -
    412A  ILE*     3.9    17.6    -      -       +      +
    471A  ALA*     4.2    13.2    -      -       +      -
    474A  LEU*     4.4    16.7    -      -       +      +
    475A  GLY      3.0    17.7    +      -       -      +
    476A  SER*     3.8     6.1    -      -       -      +
    478A  LYS*     1.3    78.0    -      -       -      +
    480A  GLU*     1.3    59.2    +      -       -      +
    483A  MSE      2.8    40.7    +      -       +      +
    508A  LEU*     5.0    11.2    -      -       +      -
    514A  LEU*     4.2    16.6    -      -       +      -
    517A  SER*     4.1    31.6    -      -       -      -
    518A  GLY*     4.4     0.9    -      -       -      -
    524A  ILE*     4.6    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 480 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476A  SER      2.9    21.7    +      -       -      +
    477A  LYS*     3.6     5.0    -      -       -      +
    479A  PHE*     1.3    71.8    -      -       -      +
    481A  LYS*     1.3    77.4    +      -       -      +
    483A  MSE      3.1     8.0    +      -       -      +
    484A  LYS*     2.9    28.0    +      -       +      +
    503A  ILE*     5.4    10.4    -      -       +      +
    508A  LEU*     4.7    23.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 481 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  LYS*     2.8    49.4    +      -       -      +
    478A  LYS*     3.6     6.2    -      -       -      +
    480A  GLU*     1.3    79.5    -      -       -      +
    482A  GLY*     1.3    51.1    +      -       -      +
    484A  LYS*     2.8    14.6    +      -       +      +
    485A  LYS*     2.8    34.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 482 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412A  ILE*     3.5    24.1    -      -       -      +
    415A  ASN*     5.7     1.6    -      -       -      -
    416A  ASN*     5.1     3.8    -      -       -      +
    478A  LYS      2.6    21.5    +      -       -      -
    481A  LYS*     1.3    73.9    -      -       -      +
    483A  MSE      1.3    62.0    +      -       -      +
    485A  LYS*     2.9    21.2    +      -       -      +
    486A  LEU*     3.2    17.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 483 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  GLN*     2.8    42.6    -      -       -      +
    408A  LEU*     3.4    26.0    -      -       +      -
    412A  ILE*     3.3    16.9    -      -       -      +
    479A  PHE*     2.8    29.3    +      -       +      +
    480A  GLU*     3.4     7.9    -      -       -      +
    482A  GLY*     1.3    72.4    -      -       -      +
    484A  LYS*     1.3    58.4    +      -       -      +
    486A  LEU*     3.7     4.3    +      -       -      +
    488A  VAL*     2.9    40.5    +      -       +      +
    503A  ILE*     3.7    25.1    -      -       +      -
    524A  ILE*     4.7    11.7    -      -       +      -
    526A  ILE*     3.6    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 484 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480A  GLU*     2.9    15.5    +      -       +      +
    481A  LYS*     2.8    15.8    +      -       +      +
    483A  MSE      1.3    75.8    -      -       -      +
    485A  LYS*     1.3    62.9    +      -       -      +
    486A  LEU      3.2     1.8    -      -       -      -
    487A  GLY*     3.0    13.0    +      -       -      -
    488A  VAL      3.8    15.7    +      -       -      +
    489A  GLY      5.4     3.4    -      -       -      -
    490A  GLU*     3.6    35.0    +      -       +      +
    559A  LYS*     4.3     0.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 485 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415A  ASN*     3.6    37.1    +      -       -      +
    481A  LYS*     2.8    13.1    +      -       +      +
    482A  GLY*     3.4    13.2    -      -       -      +
    484A  LYS*     1.3    78.1    -      -       -      +
    486A  LEU*     1.3    65.6    +      -       +      +
    487A  GLY      3.1     0.7    +      -       -      -
    559A  LYS*     3.7    21.2    +      -       -      +
    560A  LYS      5.2     1.4    +      -       -      -
    561A  ASN      3.3    24.5    +      -       -      -
    562A  ILE*     4.1    15.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 486 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408A  LEU*     4.1    28.9    -      -       +      +
    411A  MSE      4.2    16.2    -      -       +      -
    412A  ILE*     3.9    29.8    -      -       +      -
    482A  GLY      3.2     8.5    +      -       -      +
    483A  MSE      3.9     8.7    -      -       -      +
    484A  LYS      3.2     0.8    -      -       -      -
    485A  LYS*     1.3    80.5    -      -       +      +
    487A  GLY*     1.3    58.8    +      -       -      +
    488A  VAL*     3.5     1.7    +      -       +      -
    530A  GLN*     5.0     1.4    +      -       -      -
    534A  ILE*     4.2    19.8    -      -       +      +
    544A  ILE*     3.5    21.4    -      -       +      +
    558A  TRP*     5.4     1.9    -      -       -      -
    559A  LYS*     3.9     5.9    -      -       -      +
    562A  ILE*     3.6    46.9    -      -       +      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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